ATmega8 jammed during burning hex file

[imranahmed]

Please let me know my ATmega8 disabling burning hex file.I am using USBasp and Khazama AVR programmer.

When I set Reset bit in the fuse bits then further burning stopped and programmer could not read u-controller.

:-?

What can I do for recover my ATmega8?

 

[alexan_e]

If you have disabled reset then you need a parallel programmer.

The simplest solution is to use another atmega8 to reset the fuses, refer to https://www.edaboard.com/threads/105462/



The more complicated solution (that can work with any AVR) is **broken link removed**

 

[imranahmed]

Thank you dear alexan_e.

 

[imranahmed]

Dear alexan_e,

ATmega Factory Defaulter circuit could not work successfully????????

 

[alexan_e]

I haven't tried it but I think it should work fine.

Did you use the 12v supply and the two transistors shown?

 

[imranahmed]

Yes I used both transistors and 12V supply but not using regulator for 12v only 5v regulator used.
regulator for 12V is necessary ?

 

[alexan_e]

regulator for 12V is necessary ?

Not if you have a 12v DC already available

 

[imranahmed]

Dear alexan_e,

Congratulations.

My ATmega8 successfully recover to factory default settings by your given circuit.

Thank you thank you very very much friend.

 

[alexan_e]

So what was the mistake you did and wasn't working?

 

[imranahmed]

The reset wire of target ATmega8 was connect in the next pin in the breadboard.I was connect wire to proper place and runs successfully.

Thank you dear alexan_e.



Dear alexan_e,

If you have experience of Current Sensing using Hall Effect Sensor so please kindly provide me information in another THREAD.