Good day gentlemen,
I would like to thank you for recommending such an awesome product. Before trying this AVR programmer, I had gone through 3 different USB programmers without much luck.
Yes, I have Windows 7 and a laptop. Unfortunately, my options are very limited when it comes to interfacing with most widely used devices. My laptop has no serial or parallel ports.
Anyways, I’m able to program my Atmega128 without issues. I can use either AVR Studio 4 or avrdude. So, the programmer works fine.
However, after experimenting with the atmega128, I decided to use a smaller uC. The atmega128 is overkill for my purposes. I would like to use the Atmega8.
And unfortunately, the Pololu USB AVR programmer is not very friendly with this smaller capable uC. For the past few weeks I have been trying to resolve interfacing issues with my atmega8 board. I found this awesome site: http://electronics-diy.com/avr_programmer.php where the author has created a simple module to program the atmega8. I created that serial programmer and can attest to its usability. Using the serial/parallel ports on my PC, I have been able to interface with the atmega8 module with out any issues and hence my dilemma: I was able to program my atmega128 with my pololu USB AVR programmer but not my atmega8 module.
After finally creating a second programmer ( this time a parallel port)(http://www.lancos.com/prog.html) to program my atmega8 module, I have narrowed down my programming issues to the Pololu programmer. Notice that I can also program my Atmega128 with all 3 different programmers. It’s just the atmega8+ Pololu programmer combination that is giving me issues.
It seems whenever I use AVR Studio to program the atmega8, I get the “Error entering programming mode”.
I used the Pololu USB AVR Programmer Configuration Utility and have the following error: Target VDD either went too low or had too much range, so programming was aborted. Make sure that the target is powered on and its batteries are not too low (if applicable).
Because I thought there was something wrong with the power supply not out putting enough power or too much power, I bought a voltage regulator.
Using my ammeter, I see the voltage at exactly 5.0, and I still get the same identical error. I tried lowering the ISP frequency to 4kHz and the problem persists.
Is there any way I can configure the Pololu programmer to just program without it going through security/safety checks before programming. I just want it to program without it doing any checks.
Or Does any one have any suggestions? I really would like to stick to my usb programmer because my laptop is my primary computing device.
I am stumped!