Teaching a USBasp Programmer to Speak TPI - Last Fall [Kevin] wanted to program some newer TPI-only AVRs using an old USBasp h... - https://hackaday.com/2021/05/03/teaching-a-usbasp-programmer-to-speak-tpi/ #insystemprogramming #attinyhacks #atmeltpi #attiny20 #usbasp #jtag #isp