Now it uses SPI2

A project log for FASTUSBasp programmer for AVR with usb-to-serial

This is the fast ISP programmer for AVRs based on cheap stm32f103c8t6 board.

Amitesh Singh Amitesh Singh 12/15/2017 at 16:510 Comments

Based on feedback from users, I have updated the firmware to use SPI2 interface to communicate to target board. The main reason is that SPI2 is being 5V tolerant.

how to connect: