Atmega8 / Ponyprog problem
Date: December 07, 2011 03:28PM
I have built Severino version of Arduino (http://arduino.cc/en/Main/ArduinoBoardSerialSingleSided3).
It has serial port for communication with PC and ISP connector for direct programming.
I have also built a simple parallel programmer (http://gopchandani.wordpress.com/2007/01/18/the-atmega32-programmer/) and successfully programed Atmega8 controller.
Programm was working fine, but the timings were wrong ( delay(1000) was much more than 1000ms) so I programmed fuses for 8 MHz internal RC oscilator. After that the timings are OK, but I cannot access controller with Ponyprog any more.
If I want to access the Atmega chim I have to reset the fuses to the factory settings (for that I have another device which is built for that purpose only - FuseBit Doctor - http://diy.elektroda.eu/atmega-fusebit-doctor-hvpp/?lang=en)
Can anyone haelp with this?
What is the reason that Ponyprog is unable to recognise Atmega8 chip whan it is clocked with 8MHz?