-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi
I found the following code from Josef Liska, LRP-Project: #LED 3: On echo "A" | dd of=/dev/port bs=1 count=1 seek=62466 #LED 3: Off echo "L" | dd of=/dev/port bs=1 count=1 seek=62466 #LED 2: On echo "A" | dd of=/dev/port bs=1 count=1 seek=62464 #LED 2: Off echo "L" | dd of=/dev/port bs=1 count=1 seek=62464 #LED 1: On echo "H" | dd of=/dev/port bs=1 count=1 seek=62464 #LED 1: Off echo "D" | dd of=/dev/port bs=1 count=1 seek=62464 It work's with some minor bugs... LED 1 and 2 could not be switched on off separatly from each other. You will find in the manual of the board the following documentation of the GPIO port: Front panel LEDs and switch LED1 (D3) GPIO2 write I/O port [GPIOBASE] bit 2 0 = light LED2 (D2) GPIO3 write I/O port [GPIOBASE] bit 3 0 = light LED3 (D1) GPIO18 write I/O port [GPIOBASE] bit 18 0 = light Switch (S1) GPIO40 read I/O port [GPIOBASE+20] bit 8 0 = pressed With tinyBIOS, GPIOBASE is 0F400h. If you would like to write a more generic driver, use the SC1100 I/O base registers to determine GPIOBASE. I also heard that there should be a kernel module (gpio) to drive the led's but I did not find any instructions for this purpose... Have phun! rOger Solomon Asare schrieb: > Hi All, > has anyone done any work on gpio that he will want to > share? > > Thanks. > > solo. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFEg0UBaRygM0sabaARAqA7AKCA32K7IyMXWG5OR0PM8PlNSS/0pQCfXWN1 m7zABi5eT3VHaEaoiD/B/ZQ= =6D8C -----END PGP SIGNATURE----- _______________________________________________ Voyage-linux mailing list [email protected] http://list.voyage.hk/mailman/listinfo/voyage-linux
