#!/bin/bash # Flashes a LPC based boards over the serial line connected to the GPIO headers of a RPI. # In addition to the TX/RX lines you will also need to connect the BOOT and RESET lines. # This configuration uses GPIO6 for RESET and GPIO12 for BOOT. Pin numbering is using # the wiring standard. pin_reset=22 pin_boot=26 firmware=$HOME/klipper/out/klipper.bin sudo systemctl stop klipper # enter boot bootloader sequence # configure reset and boot GPIOs as outputs gpio mode $pin_reset OUT gpio mode $pin_boot OUT # hold reset and bootloader down gpio write $pin_reset 0 gpio write $pin_boot 0 # go back to high-z and let skr pullups set the lines to high gpio mode $pin_reset IN gpio mode $pin_boot IN lpc21isp -wipe -bin $firmware /dev/ttyS0 230400 12000 sudo systemctl start klipper