For years he had used a JTAG parallel cable when working with FPGAs but ... Instead of shelling out $50 for a USB programmer he a programming interface from an old router.What he’s doing is ...
Why not turn it into an In System Programmer for AVR chips ... It uses the data wires from four different USB cables to program AVR chips, enlisting the help of a 74HC00 NAND gate along the ...