This Git contains an OpenWrt feed. The main purpose is an in system low-voltage programmer for PIC Microcontroller.
The mc-icsp module was written by Eran Duchan http://www.pavius.net/2011/06/lpicp-the-embedded-linux-pic-programmer/ - I just added a GPIO customizing module (mc-icsp-gpio-custom).
Darron Broad was so kind to adapt his k8048 programmer code and greatly optimzed the GPIO bit-banging module. He is still active and add new PICs. As of today all Microchip PICs (8, 16, and 32 bit) with LVP capability should be supported.
To use this feed just edit your feeds.conf or feeds.conf.default in the OpenWrt root dir:
src-git openwrtfiles git://github.com/GBert/openwrt-filesand do
scripts/feeds update
scripts/feeds install picprog-newin your OpenWrt source tree. This will automatically add the kmod-gpio-bb module. Mark 'picprog-new' under 'Utilities' to compile and install it.
On the OpenWrt Router install the module:
modprobe gpio-bb && mknod /dev/gpio-bb c 180 0Please apply your GPIO settings in /root/.k8048/config .
root@OpenWrt:~# p16 lvp info
[000000] [PROGRAM] 8000 WORDS (0400 ROWS OF 0020 WORDS)
[200000] [IDLOCATION1] FF .
[200001] [IDLOCATION2] FF .
[200002] [IDLOCATION3] FF .
[200003] [IDLOCATION4] FF .
[200004] [IDLOCATION5] FF .
[200005] [IDLOCATION6] FF .
[200006] [IDLOCATION7] FF .
[200007] [IDLOCATION8] FF .
[300000] [CONFIG1] 125D
[300002] [CONFIG2] 7E7F
[300004] [CONFIG3] 8900
[300006] [CONFIG4] 0091
[300008] [CONFIG5] C00F
[30000A] [CONFIG6] E00F
[30000C] [CONFIG7] 400F
[3FFFFE] [DEVICEID] 6123 DEV:309 REV:03 PIC18F26K80
[F00000] [DATA] 0400 BYTES
root@OpenWrt:~# # blanking the device is not needed before progamming - just to see if its working
root@OpenWrt:~# p16 lvp blank
Blank device: Are you sure [y/N]? y
root@OpenWrt:~# p16 lvp programm 18f26k80\_blink.hex
Total: 132
root@OpenWrt:~# p16 lvp verify 18f26k80\_blink.hex
Total: 118 Pass: 118 Fail: 0
root@OpenWrt:~# time p16 lvp flash
[000000] 0E8F 14D3 0970 6ED3 8C9B 010F 6B5D 6B5C ....p..n....]k\k
[000010] 6AC2 6AC1 6AC0 6B5F 6B5E 9092 8089 0100 .j.j.j\_k^k......
[000020] 0E9C 6E01 0EDD 6E02 0E25 6E03 2E03 EF16 ...n...n%..n....
[000030] F000 2E02 EF14 F000 2E01 EF12 F000 0000 ................
[000040] 9089 0100 0E9C 6E01 0EDD 6E02 0E25 6E03 .......n...n%..n
[000050] 2E03 EF28 F000 2E02 EF26 F000 2E01 EF24 ..(.....&.....$.
[000060] F000 0000 EF0E F000 FFFF FFFF FFFF FFFF ................
real 0m 0.96s
user 0m 0.07s
sys 0m 0.87s
Darron Broad is doing a very good job getting more and more PICs integrated. Also the programming speed is impressive. PIC32 is also supported now and even the new MZ family (tests pending).
Many thanks to Eran Duchan and Darron Broad for their help.