atmega644p upload problems

Other Hardware 3rd Party Boards
1

i am trying to run a atmega644p on arduino 1.01
i tried the sanguino bootloader but it kept comming up with an error "cant find file...ect"
so i switched to manicbug's bootloader (Arduino on ATmega1284P | maniacbug) and it burned it secuessfully however i cant upload a skech to the 644p (from nano 328)
i have tried everything, external power supply, switching the 16mhz crystal with a resenator, double checking the wireing, ect it still will not upload the blink sketch
keeps spitting out this error avrdude: stk500_getsync(): not in sync: resp=0x00
just to make sure it wasnt the nano i programmed a attiny 85 with no problems.

pins are setup according to this Arduino on ATmega1284P | maniacbug
useing this atmega644p ATMEGA644P-20PU Microchip Technology | Mouser Europe

any help would be great, thanks :slight_smile:

2

Did you upload a 644 bootloader or a 1284 bootloader? The latter won't work on a 644...

3

i uploaded the 644p bootloader
his file has a "sanguino 644p" option which i selected, it burned the bootloader however when i try to upload a sketch....i get that error
also i selected a different board (attiny85) when trying to program the 644p and it yelled at me for not having the right board selected...so it's communicating with the 644p just wont upload