Ive seen many discussions on this issue but not many solid resolves. I have several new DSWY_Robot Pro Mini 328P clones which I cannot load a sketch to, nor flash a bootloader, etc. My config to try to communicate with these is by using a Sainsmart Mega 2560 which works great loaded with the Arduin…

Mega328P ISP Programming via Mega2560 - Invalid Device Signature

system April 25, 2014, 3:41pm 3

I notice it says Oscillator : off

Is that telling me I need to provide a 8MHz or 16 external clock?