I m getting trouble programming a minipro 3.3V 8MHz through an uno as an ISP: so far I managed to upload anything into minipro 3.3V without any problem using similar process and connexion so I just do not understand why it failed! I tried on 2 minipro 3.3V that now are fried (supposedly.... !)
It load the program but then it say at the end that there is a problem with serial that is not connected, and then it ends and then the minipro looks dead (no flashing light anymore, and device signature to 0x000000)
load arduino as ISP program in the UNO
connect the UNO and minipro
select the blink program, select minipro and 3.3V&8MHz option, then ''upload using a programmer''.
Any idea of how to solve that? are they fried? I know it is a recurent problem, I have seen a lot of topics on uploading problems, but its difficult to found out what to do exactly
I m using arduino 1.8.13 and the arduino ISP look to be the 1.8
many thx for any advice and help,