Output vs. Output on Arduino Dock 2

György Farkas

@Gabriel-Ongpauco @Lazar-Demin @Arduino-Dock-2-users
Omega2+ 0.1.10-b160 with Arduino Dock 2

For the ICSP programming interface avrdude.conf defines the necessary GPIO pins

reset = ~ 19
sck = 15
mosi = 16
miso = 17

and arduino-dock-lib.sh sets the GPIO's directions

# set avrdude linuxgpio pins to output

gpioctl dirout 15 >& /dev/null
gpioctl dirout 16 >& /dev/null
gpioctl dirout 17 >& /dev/null
gpioctl dirout 19 >& /dev/null

Omega's GPIO_15 --> [bidirectional level shifter] --> SCK of ATmega138P
Omega's GPIO_16 --> [bidirectional level shifter] --> MOSI of ATmega138P
Omega's GPIO_17 --> [bidirectional level shifter] <-- MISO of ATmega138P
Omega's GPIO_19 --> [transistor inverter (OC)] --> /RESET of ATmega138P

I've modified one of the above lines of /usr/share/arduino-dock/arduino-dock-lib.sh

gpioctl dirin 17 >& /dev/null

Omega's GPIO_17 <-- [bidirectional level shifter] <-- MISO of ATmega138P

Correct me if I am wrong please.