Hi folks,
I think I understand that the two different ICSP headers on the Uno and Mega2560 are ICSPs for the two different main chips. However, on some documentation, the SPI pins (MISO, MOSI, SCK) are labeled on both ICSP headers, and on some documentation, they're not.
So, i'm wondering, can I use either of the ICSP headers for SPI functionality (specifically on a Mega2560, non-R3)?
Thanks!