Programming 3v3 atmega328p on gertboard

Other Hardware 3rd Party Boards
1

Hi,

I'm trying to program my atmega328p on my gertboard connected to my raspberry pi via another arduino since the SPI interface is already in use. I have a UNO board with the arduinioISP installed the output pins are level shifted to 3v3. I have included a new definition in boards.txt

gert328.name=Gertboard with ATmega328 (w/ Arduino as ISP)
gert328.upload.using=arduino:arduinoisp
gert328.upload.protocol=arduino
gert328.upload.maximum_size=32768
gert328.upload.speed=115200
gert328.upload.disable_flushing=true
gert328.bootloader.low_fuses=0xE7
gert328.bootloader.high_fuses=0xDA
gert328.bootloader.extended_fuses=0x05
gert328.bootloader.path=optiboot
gert328.bootloader.file=optiboot_atmega328.hex
gert328.bootloader.unlock_bits=0x3F
gert328.bootloader.lock_bits=0x0F
gert328.build.mcu=atmega328p
gert328.build.f_cpu=12000000L
gert328.build.core=arduino
gert328.build.variant=standard

The programmer is set to arduino as ISP on the IDE on my laptop connected to the UNO via USB and I try an" upload using programmer"
ans I get the following output when trying to upload blink:

Binary sketch size: 1,104 bytes (of a 32,768 byte maximum)
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xc2
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xc2
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xc2
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xc2
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xc2
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xc2
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xc2
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xc2
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xc2
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xc2

I'm not sure what I am doing wrong and would be grateful for some pointers.

Cheers

Martyn

2

Here is my boards.text for RC Atmega328 @ 8MHz

##############################################################

atmega328bb.name=ATmega328 on a breadboard (8 MHz internal clock)

atmega328bb.upload.protocol=stk500
atmega328bb.upload.maximum_size=30720
#atmega328bb.upload.speed=57600
atmega328bb.upload.speed=19200

atmega328bb.bootloader.low_fuses=0xE2
atmega328bb.bootloader.high_fuses=0xDA
atmega328bb.bootloader.extended_fuses=0x05
atmega328bb.bootloader.path=arduino:atmega
atmega328bb.bootloader.file=ATmegaBOOT_168_atmega328_pro_8MHz.hex
atmega328bb.bootloader.unlock_bits=0x3F
atmega328bb.bootloader.lock_bits=0x0F

atmega328bb.build.mcu=atmega328p
atmega328bb.build.f_cpu=8000000L
atmega328bb.build.core=arduino:arduino

##############################################################

Project: http://www.hackster.io/rayburne/flat-duino

Ray