User Interface - Revision history

Cartridge1987: /* Read ports */

2016-01-14T15:02:40Z

Read ports

2015-11-11T10:57:53Z

examples

2015-11-11T10:57:15Z

read ports

2015-11-11T10:57:05Z

write ports

2015-11-11T10:56:48Z

jumper settings

2015-11-02T11:52:58Z

2015-09-07T12:54:13Z

I2C

2015-09-04T11:19:23Z

bash script to show system informations

2015-09-04T11:16:56Z

bash script to show system informations

2015-09-04T11:16:41Z

bash script to show system informations

@@ Line 148: / Line 148: @@
 | 0x13 || backlight intensity
 |-
-| 0x15 || read FIFO overrun status. If different from previous value, you've had an overrun. Best to
+| 0x15 || read FIFO(first in, first out) overrun status. If different from previous value, you've had an overrun. Best to
 clear the screen and resend any data you want displayed.
 |-

@@ Line 257: / Line 257: @@
 Refer to the datasheet of the MCP79522 for information on the registers of the chip http://ww1.microchip.com/downloads/en/DeviceDoc/22300A.pdf
-= examples =
+= Examples =
-== read identification ==
+== Read identification ==
 read the identification string of the board.
@@ Line 300: / Line 300: @@
 |}
-== set cursor position ==
+== Set cursor position ==
 move to line 1, character 5:
 {| border=1
@@ Line 312: / Line 312: @@
 |}
-== bash script to show system informations ==
+== Bash script to show system informations ==
 This bash script shows the current time and load averages of the cpu. The refresh is set to 5 seconds.

@@ Line 134: / Line 134: @@
 |}
-=== read ports ===
+=== Read ports ===
 The rpi_ui board supports several read ports:

@@ Line 80: / Line 80: @@
 Controlling the display works the same way as our SPI_LCD or I2C_LCD modules. Reading the pushbuttons is very much like the DIO module. The read and write ports are described below.
-=== write ports ===
+=== Write ports ===
 Some ports just set a single value. So writing more than one byte to such a port is redundant. Other ports are logically a stream of bytes. So writing more than one byte is encouraged.

@@ Line 50: / Line 50: @@
 The only LED is a power indicator.
-== jumper settings ==
+== Jumper settings ==
 There is one 2x2 pin jumper (JP1), which controls which SPI bus (actually which SPI chip-select line) is routed to the AVRs slave-select pin, and which is routed to the reset pin (to enable reprogramming of the AVR):<br>

← Older revision		Revision as of 11:52, 2 November 2015
Line 1:		Line 1:
	[[File:RPi-UI.jpg\|thumb\|300px\|alt=The RPi_UI PCB\|The RPi_UI PCB]]		[[File:RPi-UI.jpg\|thumb\|300px\|alt=The RPi_UI PCB\|The RPi_UI PCB]]

	This is the documentation page for the RPi_UI board.		This is the documentation page for the RPi_UI board. That can be found in the [http://www.bitwizard.nl/shop/index.php?route=product/search&search=user%20interface BitWizard shop].

@@ Line 235: / Line 235: @@
 The I2C RTC has a Linux driver, which is available in the standard kernels delivered with raspian. (and probably others too).
-Just issue:
+Just use:
  modprobe i2c:mcp7941x
  echo mcp7941x 0x6f > /sys/class/i2c-dev/i2c-1/device/new_device

@@ Line 328: / Line 328: @@
  while true; do
         #get cpu loads
-        load=`tcut -d' ' -f-3 /proc/loadavg`
+        load=`cut -d' ' -f-3 /proc/loadavg`
         #print the current time

@@ Line 317: / Line 317: @@
  #!/bin/bash
  # What display to use:
  DISPL="bw_tool -I -D /dev/i2c-1 -a 94"
  # e.g. for SPI use:
  #DISPL="bw_tool -D /dev/spidev1.0 -a 94"
  #clean the display
  $DISPL -W 10:0:b