stumbled across the MEGA-ISP Arduino Shield, and just wonder if there is a idiots guide to actually using it?
as being actually some idiot i can tell you that i couldnt get it (or rather the schematics) to work. What DOES work is actually the following:
Arduino -> Atmel
Miso -> Miso
Mosi -> Mosi
Sck -> Sck
Pin 10 -> Reset
5V -> 5Vs (both sides of the atmel (168 in my case)
Gnd -> GNDs (both sides of the atmel (168 in my case)
N/a -- Xtal (16Mhz crystal on the target Atmel)
I will try to make a schema for that sometime this weekend if needed..
But anyway - i was able to program the target Avr (168) via MegaISP using Avrprojectide and setting the megaisp-arduino as Programmer. Programming the chip (successfully!) was neither a problem, nor flashing the arduino bootloader (using said IDE), yet using the original Arduino IDE to either program or flash the bootloader failed all the time.