blank chip bootloader

Forum 2005-2010 (read only) General Frequently-Asked Questions
1

My instructor bought a couple of ATMega328P microcontrollers without bootloaders from SparkFun and i built a parallel programmer to burn a bootloader on to it and when i tried burning a bootloader w/parallel programmer it gave this error:

avrdude: AVR device not responding
avrdude: initialization failed, rc=-1
avrdude: Yikes! Invalid device signature.
avrdude: Expected signature for ATMEGA328P is 1E 95 0F
avrdude: AVR device not responding
***failed;
avrdude: verification error, first mismatch at byte 0x0000
0x05 != 0x07
avrdude: verification error; content mismatch

i checked my wires and solder connections and tried again and got the same error as before.

Does anyone know what to do?

2

Ive had the similar problems with the parallel programmer which I think is due to Windows blocking the kind of access needed to the parallel port.

If you have an Arduino around try this method: http://www.geocities.jp/arduino_diecimila/bootloader/index_en.html

Its a bit involved and you have to play around a bit but it worked perfectly :slight_smile:

3

im trying to burn them by just putting the parallel programmer directly to the chip without using an arduino. is that even possible?

4

There's nothing magical about the Arduino board, but you may need SOME components to complete a programming task. If the programmer doesn't have them, it could be a problem. Read the ATmega328 datasheet and see what components are required for flashing.

5

so if i use the boarduino to burn my atmega328p bootloader via icsp parallel programmer it should work?

6

also, do i have to do something to the fuses?

7

The simple solution (type I need) is to spend $11 and get an external USB programmer to burn bootloader program with.

Here is the one I used:

http://www.fun4diy.com/AVRISP_mkII.htm