ISP Flasher

High Speed ISP flasher using the SPI of a Raspberry Pi

Used Hardware

• Raspberry Pi3b+ (any pi with the new header layout and SPI will do)
• this case
• Sparkfun Raspberry Pi Shield: DEV-14747
• ISP adapters in this repo

Setup

• install OS to SD or USB: I used DietPI but you can use anything you like.
• Enable SPI: nano /boot/config.txt add / edit dtparam=spi=on and reboot
• install avrdude with SPI enabled following this guide
• install pigs apt update && apt-get install pigpio enable sudo systemctl enable --now pigpiod
• install git for git grep apt install git
• place flash.sh in /root/ and chmod +x /root/flash.sh
• add service nano /etc/systemd/system/flasherdasher.service and paste in the content of flasherdasher.service in this repo. systemctl enable --now flasherdasher
• format a USB stick in FAT32 and get the UUID with blkid
• place the config on the USB stick and edit the UUID
• add your hex to the USB and edit the fuse bits, firmware name, lock bit and flashing speeds to your liking

Happy flashing!