I am using Asim Khan's Parallel port Programmer to program my AVR ATmega8 controller. The Problem is when I changes fuse bits to external high speed crystal, then the next time programmer does not detects the programmer. I am really frustrated to figure out what would be the problem. Can any one helps me to locate the problem?
Thanks in advance
Atmega 8 is not programming once it is set to external crystal
avrprogrammer
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Best Answer
Assuming you set the correct fuses, the crystal may not start oscillating because of wrong feedback capacitor values. The "correct value" depends on the load capacitance of the crystal.
See that