Greetings to all the AVR Geeks,
I am a newbie for avr chips. 2 days back i bought Atmega168PA chip and wrote uart program for it in atmel studio 7.0. The code was tested in proteus simulator and found it working. I am using 11.0592 external crystal and also defined F_CPU symbol in my code. Problem came when i modified the fuse bits of uC in AVR dude and uploaded to the chip over writting default fuse values. Still i have not uploaded the hex file. I dont know what values i have written in the uC. At this point avr dude is not able to communicate to uC. The device signature always received is 0x000000. I have tried to fix bad fuse settings by reading this article. Still no luck. I have googled and found that HVPP or HVSP can help but i don't know how to connect AVR Dragon to my uC. Any help will be appreciated.
I have AVR Dragon, USBASP and a blown uC(Atmega168PA).