1)Hello all , I have a project that uses a TQFP ATMEGA1280V on a PCB. I have tried to program the chip using icsp and several other ways with no luck. The first way was using the uno as a programmer:
Arduino Uno(Reset) pin 10 <----->Pcb Icsp (pin 5)(Reset)
Arduino Uno(Mosi) pins 11<----->Pcb Icsp(pin 4)(Mosi)
Arduino Uno(Miso) pins 12<----->Pcb Icsp(pin 1)(Miso)
Arduino Uno(Sck) pins 13<----->Pcb Icsp(pin 3)(Sck)
Arduino Uno(Gnd) <----->Pcb Icsp(Gnd)
Arduino Uno(Vcc) <----->Pcb Icsp(Vcc) and 10uf cap between gnd and res on the arduino
I select the port and the board type. I then downloaded the example arduinoisp sketch to the Uno first. I then switch the board type to atmega1280, the tried to "burn bootloader".They pcb is externally powered 5v and Uno via usb. The error message I get is" error while burning bootloader" invalid device signature.
2)The second way was using the stk500 usb avrisp programmer w/avr studio 4.1
programming mode and target setting was pp/hvsp mode, isp frequency 115.2 KHz. When I tried to read the signature , I get "signature does not match selected device!", If I program without placing the check mark in the box labeled "verify device after programming this is the result
Reading FLASH input file.. OK
Entering programming mode.. OK!
Erasing device.. OK!
Programming FLASH .. OK!
Leaving programming mode.. OK!
if I check the same box I get this "parallel hvsp mode error"
I attemted to load my sketch but this is the result"avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00" problem uploading to the board
3) the third way I tried was to use the TQFP STAND ALONE ATMEGA1280 place in a 100 pin adapter and using the uno as an icsp programmer
I used pin atmega pb1 /pin20 (Sck)---Arduino pin 13(Sck)
atmega pb2 /pin21 (Mosi)--- Arduino pin 12(Sck)
atmega pb3 /pin22 (Miso)---Arduino pin 11(Miso)
atmega vcc pin 10---Arduino (vcc)
atmega gnd pin 11---Arduino (gnd)
atmega respin 30---Arduino (reset)
same error while burning bootloader
can anyone help !!!!!!!!!!!!!!!!!!!!!
Thanks in advance