Cytron Technical Forum

hi Cytron,

I just bought a atmega 328 a week ago. Cytron claimed that they are preloaded the new atmega328 with optiboot bootloader. I m using breadboard ( duemi)to test out my sketch. I have been doing my previous projects with 2 (NOT loaded bootloader) atmega328 with no Problem.
Now, i can't upload my sketch to the newly bought atmega328 (preloaded with optiboot), and i tried to bootloaded it again but the boot loading process was failed. The error messages are as below
1. avrdue: error: programm enable, target doesn't answer. 1
2. avrdue: initialization failed; rc=-1 Double check connection and try again or use -F to override this check.

Anyone out there who encounter this error?
Please help. Thank you.

rdgs
Jake

how is ur schematic?

When you try to connect/upload sketch from arduino IDE, did you choose Arduino Uno board in the arduino IDE ? Arduino Uno should be chosen for Optiboot.

echentj WROTE:The error messages are as below
1. avrdue: error: programm enable, target doesn't answer. 1
2. avrdue: initialization failed; rc=-1 Double check connection and try again or use -F to override this check.

seems like the problem comes from the programmer. Please double check your programmer like try to program the 2 ATMEGA chips u bought before.

If you are trying to burn the bootloader onto the ATMEGA328 (not ATMEGA328P, check your IC), you are supposed to get the error msg below:
avrdude: Expected signature for ATMEGA328P is 1E 95 0F
Double check chip, or use -F to override this check.
If you are getting the error msg above when u are trying to burn the bootloader, then you need to change the signature for ATEMGA328 from 0F to 14 in hardware >tools>avr>etc>avrdude.conf. After burning complete, change back the signature. Remember to restart the ARDUINO IDE every time u make a changes on the file.

i also has the same problem too... i try so many method... still cannot... i even try avrdude... also cannot...

Hi all,

I have successfully uploaded my sketch after i changed from Arduino Deumi to Uno.
hyng and YongHui thanks for the information and promptly reply.

Thank you.

best regards
Jake

hi. hello. i have a question. about to change the avrdude.conf
i already change the signature. from 0F to 14. but still cannot works. but, i dont know either i change the correct signature or not. so, i provide the screen shot. maybe i wrongly change the avrdude.conf hope u guys can help me. with all, regards.