hello, sorry for my bad english ... i am french.and new to this... anyway i just bought several atmega328 , i am using a 3-pin external ceramic oscillator i tried to upload a code into it and i get a (500sdk error) ( the default arduino bootloader is aparently already on the chip , as my furnisher mentioned , plus i get the pin 13 to fade-in as the default arduino code)
anyway i tried to make a paralellprogramer ... noting to do i get an error message i am not able to eigther burn the bootloader or load a code
If there is an Arduino bootloader on the chip, you’ll need no ISP programmer. What frequency is your oscillator? Should be 16MHz, if not the bootloader will not work.
I think he is trying to upload using a parallel programmer on purpose, i mean…he already knows he can upload with the bootloader through USB. I think it has more to do with the editing of the “boards.txt” file and add the right kind of protocol (that’s what i did with my serial port programmer)…but if this is the case we need to know what kind of programmer you are using (like…have you used the schematics of a populare parallel-programmer? If yes, what’s its name?)
I am not sure I can see properly but…have you connected AGND to ground? Actually i meant AV+ but it looks like you have. What error do you get and how are you trying to upload the code?
hello i solved the problem … it was a circuit mistake … i conected the reset capacitor to the ground … but it goes in between rts (on my ftdi) and reset pin on the atmega … no need to fry the chip even with the default fuse setting… arduino takes em both xtal and resonators but this fuse setting thing shure does look fun to fool around with… oh yeah and on the arduino mini ftdi (the one i use ) the rx goes on the rx arduino pin and the tx on tx … not rx to tx and tx to rx
thanks guys for alll your help
i will post my machine as soon that it’s halfway done
