Please include hex flashing instructions for MAC

[southwood]

Here is an example using AVRDUDE, based on the way Arduino IDE flashes after compilation.

Save the script to flash.sh, run chmod +x flash.sh, then call it like ./flash.sh firmware.hex. If avr is not installed, first install it with brew tap osx-cross/avr and brew install avr-gcc. Make sure to close uArmStudio and ArduinoIDE as they might interfere with the connection while flashing is in progress.

#!/bin/bash

# default location from `brew tap osx-cross/avr` and `brew install avr-gcc`
export AVR_PATH=/Applications/Arduino.app/Contents/Java/hardware/tools/avr/
export PROGRAM="$1"

# search for connected device
for i in $(seq 1 10); do
 export DEVICE_ID=$(ls /dev/tty.usb* 2>&1 | grep -v "No such")
 if [ -z "$DEVICE_ID" ]; then
 echo -ne "[$i of 10] Looking for device, connect USB and double tap the button to put it in flash mode \033[0K\r"
 sleep 1.5
 else
 echo "Found device, flashing ${PROGRAM} to ${DEVICE_ID}"
 # flash the hex program to the device
 $AVR_PATH/bin/avrdude \
 -C$AVR_PATH/etc/avrdude.conf \
 -v \
 -patmega2560 \
 -cwiring \
 -P${DEVICE_ID} \
 -b115200 \
 -D \
 -Uflash:w:${PROGRAM}:i
 break
 fi
done

[dolbyzerr]

Thank you very much for the script!

I've used a slightly different version though:
I've installed AVRDUDE through brew

brew install avrdude

#!/bin/bash

export PROGRAM="$1"

# search for connected device
for i in $(seq 1 10); do
 export DEVICE_ID=$(ls /dev/tty.usb* 2>&1 | grep -v "No such")
 if [ -z "$DEVICE_ID" ]; then
 echo -ne "[$i of 10] Looking for device, connect USB and double tap the button to put it in flash mode \033[0K\r"
 sleep 1.5
 else
 echo "Found device, flashing ${PROGRAM} to ${DEVICE_ID}"
 # flash the hex program to the device
 avrdude \
 -v \
 -p atmega2560 \
 -c wiring \
 -P ${DEVICE_ID} \
 -b 115200 \
 -D \
 -U flash:w:${PROGRAM}:i
 break
 fi
done