https://bitwizard.nl/wiki/index.php?action=history&feed=atom&title=Blog_20 2026-04-05T19:01:04Z Revision history for this page on the wiki MediaWiki 1.35.6 https://bitwizard.nl/wiki/index.php?title=Blog_20&diff=3723&oldid=prev 2015-12-01T14:21:51Z

<p><span dir="auto"><span class="autocomment">!BETA!Understanding the I2C example code</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:21, 1 December 2015</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 103:</td> <td colspan="2" class="diff-lineno">Line 103:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>This will put the print text on the wanted position on the display. It says the x and y position from the printed information. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>This will put the print text on the wanted position on the display. It says the x and y position from the printed information. </div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>It will start transmitting to the address and talk to register 0x11, <del class="diffchange diffchange-inline">which</del> <del class="diffchange diffchange-inline">refreshes</del> the <del class="diffchange diffchange-inline">page</del>. </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>It will start transmitting to the address and talk to register 0x11, <ins class="diffchange diffchange-inline">where</ins> <ins class="diffchange diffchange-inline">you can give</ins> the <ins class="diffchange diffchange-inline">coordination</ins>. </div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The bits value of y will be shifted 5 to the left. The '|' is an or function, <del class="diffchange diffchange-inline">what</del> <del class="diffchange diffchange-inline">it</del> <del class="diffchange diffchange-inline">does</del> <del class="diffchange diffchange-inline">is</del> <del class="diffchange diffchange-inline">that it wants</del> one <del class="diffchange diffchange-inline">of</del> <del class="diffchange diffchange-inline">or both of the two be</del> <del class="diffchange diffchange-inline">1</del>. </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The bits value of y will be shifted 5 to the left. The '|' is an or function, <ins class="diffchange diffchange-inline">that</ins> <ins class="diffchange diffchange-inline">switches</ins> <ins class="diffchange diffchange-inline">to</ins> <ins class="diffchange diffchange-inline">the</ins> <ins class="diffchange diffchange-inline">other</ins> one <ins class="diffchange diffchange-inline">with</ins> <ins class="diffchange diffchange-inline">it's</ins> <ins class="diffchange diffchange-inline">coordination</ins>. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>After that it will stop transmitting. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>After that it will stop transmitting. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 116:</td> <td colspan="2" class="diff-lineno">Line 116:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>The loop will make it that the arduino, will repeatedly repeat the code. The character in the array will get the in the string the value of '0x10'.</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>The loop will make it that the arduino, will repeatedly repeat the code. The character in the array will get the in the string the value of '0x10'.</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The static make that x will only work with one function, and will stay with the same value. After that it <del class="diffchange diffchange-inline">makes contact with</del> the cls function. </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The static make that x will only work with one function, and will stay with the same value. After that it <ins class="diffchange diffchange-inline">runs</ins> the cls<ins class="diffchange diffchange-inline"> screen</ins> function. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> void loop()</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> void loop()</div></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 133:</td> <td colspan="2" class="diff-lineno">Line 133:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> lcd_gotoxy (0,0);</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> lcd_gotoxy (0,0);</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> </div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>It will print on the serial monitor(CTRL+M) with the array given value and will counts with x++ one <del class="diffchange diffchange-inline">more on</del> the number. </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>It will print on the serial monitor(CTRL+M) with the array given value and will counts with x++ one <ins class="diffchange diffchange-inline">to</ins> the number. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>Let's the lcd print the given value in buf(Group or arrays with bytes). </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>Let's the lcd print the given value in buf(Group or arrays with bytes). </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>After that it waits 1000miliseconds = 1 seconds. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>After that it waits 1000miliseconds = 1 seconds. </div></td> </tr> </table>

Cartridge1987 https://bitwizard.nl/wiki/index.php?title=Blog_20&diff=3722&oldid=prev 2015-12-01T14:04:59Z

<p><span dir="auto"><span class="autocomment">!BETA!Understanding the I2C example code</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:04, 1 December 2015</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 76:</td> <td colspan="2" class="diff-lineno">Line 76:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>The 0x82 is in this example bit shifted(&gt;&gt;) to the right by one. Bit shifting in this example let's all the bits go to the right. So what will happen:</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>The 0x82 is in this example bit shifted(&gt;&gt;) to the right by one. Bit shifting in this example let's all the bits go to the right. So what will happen:</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>0x82 (Hex) = 1000 0010 </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div><ins class="diffchange diffchange-inline"> </ins>0x82 (Hex) = 1000 0010 </div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>1000 010 &gt;&gt; 1 = 01000001 = 0x41 (Hex)</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div><ins class="diffchange diffchange-inline"> </ins>1000 010 &gt;&gt; 1 = 01000001 = 0x41 (Hex)</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>( As you can see all the 1<del class="diffchange diffchange-inline">'s</del> are going to the right )</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>( As you can see all the 1<ins class="diffchange diffchange-inline"> bits</ins> are going to the right )</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>In this example Using bit shifting is an easy technique, so that you don't have to calculate what the I2c address value is. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>In this example Using bit shifting is an easy technique, so that you don't have to calculate what the I2c address value is. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>(cls = clear screen)<del class="diffchange diffchange-inline"> This part can be called later in the script.</del> The begin transmission write to the address given from I2C_LCD_ADDR with register 0x10 and the value 0. This will clear the screen of the lcd. After that is stops transmitting data. </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>(cls = clear screen) The begin transmission write to the address given from I2C_LCD_ADDR with register 0x10 and the value 0. This will clear the screen of the lcd. After that is stops transmitting data. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> void lcd_cls (void)</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> void lcd_cls (void)</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> {</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> {</div></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 91:</td> <td colspan="2" class="diff-lineno">Line 91:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> }</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> }</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>char *str, will make a pointer to str. For new people like me that can be confusing so it is recommended for now to see it as: 'char str[]'.</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div><del class="diffchange diffchange-inline">This will put characters in a string. </del>He again start transmitting to the address to register 0x0 and with the value given in the str. </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>He again start transmitting to the address to register 0x0 and with the value given in the str. </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> void lcd_print (char *str)</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> void lcd_print (char *str)</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> {</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> {</div></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 100:</td> <td colspan="2" class="diff-lineno">Line 102:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> }</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> }</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>This will <del class="diffchange diffchange-inline">make</del> <del class="diffchange diffchange-inline">contact</del> <del class="diffchange diffchange-inline">to</del> <del class="diffchange diffchange-inline">int</del> <del class="diffchange diffchange-inline">x</del> <del class="diffchange diffchange-inline">and</del> <del class="diffchange diffchange-inline">int</del> <del class="diffchange diffchange-inline">y.</del> <del class="diffchange diffchange-inline">It</del> <del class="diffchange diffchange-inline">will</del> <del class="diffchange diffchange-inline">start</del> <del class="diffchange diffchange-inline">transmitting</del> <del class="diffchange diffchange-inline">to</del> the <del class="diffchange diffchange-inline">address</del> and <del class="diffchange diffchange-inline">talk</del> <del class="diffchange diffchange-inline">to</del> <del class="diffchange diffchange-inline">register</del> <del class="diffchange diffchange-inline">0x11</del>. </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>This will <ins class="diffchange diffchange-inline">put</ins> <ins class="diffchange diffchange-inline">the</ins> <ins class="diffchange diffchange-inline">print</ins> <ins class="diffchange diffchange-inline">text</ins> <ins class="diffchange diffchange-inline">on</ins> <ins class="diffchange diffchange-inline">the</ins> <ins class="diffchange diffchange-inline">wanted</ins> <ins class="diffchange diffchange-inline">position</ins> <ins class="diffchange diffchange-inline">on</ins> <ins class="diffchange diffchange-inline">the</ins> <ins class="diffchange diffchange-inline">display.</ins> <ins class="diffchange diffchange-inline">It</ins> <ins class="diffchange diffchange-inline">says</ins> the <ins class="diffchange diffchange-inline">x</ins> and <ins class="diffchange diffchange-inline">y</ins> <ins class="diffchange diffchange-inline">position from the</ins> <ins class="diffchange diffchange-inline">printed</ins> <ins class="diffchange diffchange-inline">information</ins>. </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>It will start transmitting to the address and talk to register 0x11, which refreshes the page. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>The bits value of y will be shifted 5 to the left. The '|' is an or function, what it does is that it wants one of or both of the two be 1. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>The bits value of y will be shifted 5 to the left. The '|' is an or function, what it does is that it wants one of or both of the two be 1. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>After that it will stop transmitting. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>After that it will stop transmitting. </div></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-3721:rev-3722:1.13.0 --> </table>

Cartridge1987 https://bitwizard.nl/wiki/index.php?title=Blog_20&diff=3721&oldid=prev 2015-12-01T13:08:08Z

<p><span dir="auto"><span class="autocomment">!BETA!Understanding the I2C example code</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:08, 1 December 2015</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 75:</td> <td colspan="2" class="diff-lineno">Line 75:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> #define I2C_LCD_ADDR (0x82&gt;&gt;1) </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> #define I2C_LCD_ADDR (0x82&gt;&gt;1) </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The 0x82 is in this example bit shifted(&gt;&gt;) to the right <del class="diffchange diffchange-inline">with</del> one. Bit shifting in this example let <del class="diffchange diffchange-inline">a</del> the bits go to the right. So <del class="diffchange diffchange-inline">easy</del> <del class="diffchange diffchange-inline">example</del> <del class="diffchange diffchange-inline">with a 4 bits</del>:<del class="diffchange diffchange-inline"> 0010 will become 0001.</del></div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The 0x82 is in this example bit shifted(&gt;&gt;) to the right <ins class="diffchange diffchange-inline">by</ins> one. Bit shifting in this example let<ins class="diffchange diffchange-inline">'s</ins> <ins class="diffchange diffchange-inline">all</ins> the bits go to the right. So <ins class="diffchange diffchange-inline">what</ins> <ins class="diffchange diffchange-inline">will</ins> <ins class="diffchange diffchange-inline">happen</ins>:</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>0x82 (Hex) = 1000 0010 </div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The hexadecimal result should be: 0x41. This is an easy technique if you know the address value, but don't want to figure out what the hexadecimal value is when you divide it with 2. </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>1000 010 &gt;&gt; 1 = 01000001 = 0x41 (Hex)</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div> (0x82&gt;&gt;1)</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>( As you can see all the 1's are going to the right )</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>In this example Using bit shifting is an easy technique, so that you don't have to calculate what the I2c address value is. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>(cls = clear screen) This part can be called later in the script. The begin transmission write to the address given from I2C_LCD_ADDR with register 0x10 and the value 0. This will clear the screen of the lcd. After that is stops transmitting data. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>(cls = clear screen) This part can be called later in the script. The begin transmission write to the address given from I2C_LCD_ADDR with register 0x10 and the value 0. This will clear the screen of the lcd. After that is stops transmitting data. </div></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-3720:rev-3721:1.13.0 --> </table>

Cartridge1987 https://bitwizard.nl/wiki/index.php?title=Blog_20&diff=3720&oldid=prev 2015-12-01T12:50:36Z

<p><span dir="auto"><span class="autocomment">!BETA!Understanding the I2C example code</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:50, 1 December 2015</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>== !BETA!Understanding the I2C example code ==</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>== !BETA!Understanding the I2C example code ==</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>Hello, in this post I want to give explanation<del class="diffchange diffchange-inline"> tips</del> for the example I2C code you can see [[LCD]]. </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Hello, in this post I want to give explanation for the example I2C code you can see<ins class="diffchange diffchange-inline"> at the</ins> [[LCD]]<ins class="diffchange diffchange-inline"> page</ins>. </div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>A link to the code:</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>A<ins class="diffchange diffchange-inline"> direct</ins> link to the code:</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>*[http://www.bitwizard.nl/software/ar_i2c_lcd_demo.pde AR I2C LCD DEMO]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>*[http://www.bitwizard.nl/software/ar_i2c_lcd_demo.pde AR I2C LCD DEMO]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>I would recommend if you are new to arduino to search stuff you are unfamiliar with<del class="diffchange diffchange-inline"> on the internet</del>.&lt;br&gt;On [https://www.arduino.cc/en/Reference/HomePage Arduino's reference page] you can find a lot of the commands well explained.</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>I would recommend if you are new to arduino to search stuff<ins class="diffchange diffchange-inline"> up</ins> you are unfamiliar with.&lt;br&gt;On [https://www.arduino.cc/en/Reference/HomePage Arduino's reference page] you can find a lot of the commands well explained.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>What does the code?</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>What does the code?</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The code is a counter, that counts <del class="diffchange diffchange-inline">one</del> <del class="diffchange diffchange-inline">up of</del> the<del class="diffchange diffchange-inline"> previous</del> code<del class="diffchange diffchange-inline">. So, you can say it counts the seconds it</del> is <del class="diffchange diffchange-inline">on</del>.<del class="diffchange diffchange-inline"> </del></div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The code is a counter, that counts <ins class="diffchange diffchange-inline">how</ins> <ins class="diffchange diffchange-inline">long</ins> the code is <ins class="diffchange diffchange-inline">running</ins>.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>It counts in seconds, minutes and hours. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>The full code:</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>The full code:</div></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 65:</td> <td colspan="2" class="diff-lineno">Line 66:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> #include &lt;Wire.h&gt; </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> #include &lt;Wire.h&gt; </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div><del class="diffchange diffchange-inline">Set up the</del> contact with I2C Bus. </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div><ins class="diffchange diffchange-inline">Make</ins> contact with I2C Bus. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> void setup()</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> void setup()</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> {</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> {</div></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 138:</td> <td colspan="2" class="diff-lineno">Line 139:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>Mistake in the code is in the comments, that there is several times said that: // Send dummy byte to port 10: clear screen.</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>Mistake in the code is in the comments, that there is several times said that: // Send dummy byte to port 10: clear screen.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>This only happens with the first one.</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>This only happens with the first one.</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><br /></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>== !BETA! Understanding the SPI example code ==</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>== !BETA! Understanding the SPI example code ==</div></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-3719:rev-3720:1.13.0 --> </table>

Cartridge1987 https://bitwizard.nl/wiki/index.php?title=Blog_20&diff=3719&oldid=prev 2015-12-01T09:31:30Z

<p><span dir="auto"><span class="autocomment">!BETA! Understanding the SPI example code</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:31, 1 December 2015</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 151:</td> <td colspan="2" class="diff-lineno">Line 151:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>The const makes it that the 4 pins:</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>The const makes it that the 4 pins:</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>SPICLK = SPI Shift Clock</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div><ins class="diffchange diffchange-inline">*</ins>SPICLK = SPI Shift Clock</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>SPIMOSI = SPI Master Out Slave Out</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div><ins class="diffchange diffchange-inline">*</ins>SPIMOSI = SPI Master Out Slave Out</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>SPIMISO = SPI Master In Slave Out</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div><ins class="diffchange diffchange-inline">*</ins>SPIMISO = SPI Master In Slave Out</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>SPISS = SPI Slave Select</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div><ins class="diffchange diffchange-inline">*</ins>SPISS = SPI Slave Select</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>will give a value that is read-only.</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>will give a value that is read-only.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-3718:rev-3719:1.13.0 --> </table>

Cartridge1987 https://bitwizard.nl/wiki/index.php?title=Blog_20&diff=3718&oldid=prev 2015-12-01T09:25:30Z

<p><span dir="auto"><span class="autocomment">!BETA! Understanding the SPI example code</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:25, 1 December 2015</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 148:</td> <td colspan="2" class="diff-lineno">Line 148:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>While I only explaining special parts of the code. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>While I only explaining special parts of the code. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>What does this code do? This code makes will count how long the code is running and print it out on the display. It counts in <del class="diffchange diffchange-inline">minutes</del>, <del class="diffchange diffchange-inline">hours</del> and <del class="diffchange diffchange-inline">days</del>. </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>What does this code do? This code makes will count how long the code is running and print it out on the display. It counts in <ins class="diffchange diffchange-inline">seconds</ins>, <ins class="diffchange diffchange-inline">minutes</ins> and <ins class="diffchange diffchange-inline">hours</ins>. <ins class="diffchange diffchange-inline">( Also does days if you remove the comments(//).</ins></div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>The const makes it that the 4 pins:</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>The const makes it that the 4 pins:</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div><del class="diffchange diffchange-inline">CLK</del> = Shift Clock</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div><ins class="diffchange diffchange-inline">SPICLK</ins> =<ins class="diffchange diffchange-inline"> SPI</ins> Shift Clock</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div><del class="diffchange diffchange-inline">MOSI</del> = Master Out Slave Out</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div><ins class="diffchange diffchange-inline">SPIMOSI</ins> =<ins class="diffchange diffchange-inline"> SPI</ins> Master Out Slave Out</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div><del class="diffchange diffchange-inline">MISO</del> = Master In Slave Out</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div><ins class="diffchange diffchange-inline">SPIMISO</ins> =<ins class="diffchange diffchange-inline"> SPI</ins> Master In Slave Out</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div><del class="diffchange diffchange-inline">SS</del> = Slave Select</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div><ins class="diffchange diffchange-inline">SPISS</ins> =<ins class="diffchange diffchange-inline"> SPI</ins> Slave Select</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>will give a value that is read-only.</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>will give a value that is read-only.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-3717:rev-3718:1.13.0 --> </table>

Cartridge1987 https://bitwizard.nl/wiki/index.php?title=Blog_20&diff=3717&oldid=prev 2015-11-30T16:58:50Z

<p><span dir="auto"><span class="autocomment">!BETA! Understanding the SPI example code</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:58, 30 November 2015</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 162:</td> <td colspan="2" class="diff-lineno">Line 162:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> const int SPISS = 10;</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> const int SPISS = 10;</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div><del class="diffchange diffchange-inline">Will</del> <del class="diffchange diffchange-inline">tell</del> <del class="diffchange diffchange-inline">to</del> all the pins<del class="diffchange diffchange-inline">, that they should become</del> outputs. <del class="diffchange diffchange-inline">It after</del> that <del class="diffchange diffchange-inline">writings</del> the value 1<del class="diffchange diffchange-inline"> </del>(<del class="diffchange diffchange-inline">On</del>) to Slave Select<del class="diffchange diffchange-inline">, to make a HIGH value to the digital</del> pin. </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div><ins class="diffchange diffchange-inline">The</ins> <ins class="diffchange diffchange-inline">pinMode</ins> <ins class="diffchange diffchange-inline">lines will make</ins> all the pins outputs. <ins class="diffchange diffchange-inline">After</ins> that <ins class="diffchange diffchange-inline">it writes</ins> the value 1(<ins class="diffchange diffchange-inline">HIGH</ins>) to<ins class="diffchange diffchange-inline"> the</ins> Slave Select pin. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>([https://www.arduino.cc/en/Tutorial/SPIEEPROM More about SPCR])</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>([https://www.arduino.cc/en/Tutorial/SPIEEPROM More about SPCR])</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>SPCR<del class="diffchange diffchange-inline"> = </del>SPI Control Register</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>SPCR<ins class="diffchange diffchange-inline">(</ins>SPI Control Register<ins class="diffchange diffchange-inline">) </ins></div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>The _BV is the bit value.~ </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>The _BV is the bit value.~ </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>*SPE - Enables the SPI when 1</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>*SPE<ins class="diffchange diffchange-inline">(SPI Enable)</ins> - Enables the SPI when 1</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>*MSTR - Sets the Arduino in master mode when 1, slave mode when 0</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>*MSTR<ins class="diffchange diffchange-inline">(Master mode)</ins> - Sets the Arduino in master mode when 1, slave mode when 0</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>*SPR1 and SPR0 - Sets the SPI speed, 00 is fastest (4MHz) 11 is slowest (250KHz)</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>*SPR1 and SPR0<ins class="diffchange diffchange-inline">(Speed per round)</ins> - Sets the SPI speed, 00 is fastest (4MHz) 11 is slowest (250KHz)</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> void SPIinit(void)</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> void SPIinit(void)</div></td> </tr> </table>

Cartridge1987 https://bitwizard.nl/wiki/index.php?title=Blog_20&diff=3716&oldid=prev 2015-11-30T16:10:16Z

<p><span dir="auto"><span class="autocomment">!BETA! Understanding the SPI example code</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:10, 30 November 2015</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 352:</td> <td colspan="2" class="diff-lineno">Line 352:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> // delay (100);</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> // delay (100);</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> }</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> }</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><br /></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>/////</div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>This is for talking to the servo and the 7FETs. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>This is for talking to the servo and the 7FETs. </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Register 0x20, with value s an reference 0xf gets bit shifted 4 times to the left.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> {</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> {</div></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 366:</td> <td colspan="2" class="diff-lineno">Line 365:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> }</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> }</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Makes a string, of four values. For values 1, 4, 2 and 8. Olds will than read what the latest values is that is given to s. </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>At 7FETs address the register 10 will set the given outputs at value to zero. </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> {</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> {</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> static unsigned char olds;</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> static unsigned char olds;</div></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-3709:rev-3716:1.13.0 --> </table>

Cartridge1987 https://bitwizard.nl/wiki/index.php?title=Blog_20&diff=3709&oldid=prev 2015-11-30T14:11:58Z

<p><span dir="auto"><span class="autocomment">!BETA! Understanding the SPI example code</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:11, 30 November 2015</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 353:</td> <td colspan="2" class="diff-lineno">Line 353:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> }</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> }</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>/////</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>This is for talking to the servo and the 7FETs. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> {</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> {</div></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-3706:rev-3709:1.13.0 --> </table>

Cartridge1987 https://bitwizard.nl/wiki/index.php?title=Blog_20&diff=3706&oldid=prev 2015-11-30T13:51:16Z

<p><span dir="auto"><span class="autocomment">!BETA! Understanding the SPI example code</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:51, 30 November 2015</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 161:</td> <td colspan="2" class="diff-lineno">Line 161:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> const int SPIMISO = 12;</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> const int SPIMISO = 12;</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> const int SPISS = 10;</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> const int SPISS = 10;</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div> </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>Will tell to all the pins, that they should become outputs. It after that writings the value 1 (On) to Slave Select, to make a HIGH value to the digital pin. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>Will tell to all the pins, that they should become outputs. It after that writings the value 1 (On) to Slave Select, to make a HIGH value to the digital pin. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 195:</td> <td colspan="2" class="diff-lineno">Line 195:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> return (received);</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> return (received);</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> }</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> }</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div> </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>When spi starts spkt it will write Slave select 0 and after that it will make it 1 again.</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>When spi starts spkt it will write Slave select 0 and after that it will make it 1 again.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 207:</td> <td colspan="2" class="diff-lineno">Line 207:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> digitalWrite (SPISS, 1);</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> digitalWrite (SPISS, 1);</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> }</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> }</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div> </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>Name the address 0x82, that can't be changed. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>Name the address 0x82, that can't be changed. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 216:</td> <td colspan="2" class="diff-lineno">Line 216:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> #define WAIT1 25</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> #define WAIT1 25</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> #define WAIT2 15</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> #define WAIT2 15</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div> </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>Send to the lcd.</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>Send to the lcd.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 254:</td> <td colspan="2" class="diff-lineno">Line 254:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> write_lcd (s);</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> write_lcd (s);</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> }</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> }</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div> </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>(cls = Clear Screen )</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>(cls = Clear Screen )</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 277:</td> <td colspan="2" class="diff-lineno">Line 277:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> SPI_endpkt (); </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> SPI_endpkt (); </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> }</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> }</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div> </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>Make clear what the addresses are from the servo and 7FETs. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>Make clear what the addresses are from the servo and 7FETs. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> static unsigned char spi_servo_addr = 0x86;</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> static unsigned char spi_servo_addr = 0x86;</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> static unsigned char spi_7fet_addr = 0x88;</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> static unsigned char spi_7fet_addr = 0x88;</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div> </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> void set_servo_var (unsigned char a, unsigned char v)</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> void set_servo_var (unsigned char a, unsigned char v)</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> {</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> {</div></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 292:</td> <td colspan="2" class="diff-lineno">Line 292:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> set_var (spi_7fet_addr, a, v);</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> set_var (spi_7fet_addr, a, v);</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> }</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> }</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div> </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>DDRC - The Port C Data Direction Register - read/write </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>DDRC - The Port C Data Direction Register - read/write </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>PORTC - The Port C Data Register - read/write </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>PORTC - The Port C Data Register - read/write </div></td> </tr> <tr> <td colspan="2" class="diff-lineno">Line 311:</td> <td colspan="2" class="diff-lineno">Line 311:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> cls_lcd ();</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> cls_lcd ();</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div> }</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div> }</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div> </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>static long makes that the number can't be negative. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>static long makes that the number can't be negative. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>Millis = Returns the number of milliseconds since the Arduino board began running the current program. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>Millis = Returns the number of milliseconds since the Arduino board began running the current program. </div></td> </tr> </table>

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