How to program ATMEGA8L-8PU

[Suvodeep]

Hi All,

I have recently bought a digital rms wattmeter consisting an ATMEGA8L-8PU IC which is already programmed and working fine in digital RMS wattmeter. I bought another ATMEGA8L-8PU IC and just tried to copy the data from previous IC to the newly bought IC.
I am using Minipro universal EEPROM programmer version 6. After reading and writing the program in new IC, when i replace the original IC with the newly programmed one.....it is not working properly.
I am new in programming ATMEGA8L-8PU and i dont understand why the same program in two identical ICs are not working identically.
Am I missing any step or do I need any other software or programming kit for this.

Please help.
Thanks.

 

[kanni1303]

The ATMEGA in the watt-meter might be programmed with code protection, don't try to read the chip, try to download the program file from the corresponding product website.

 

[Suvodeep]

Thanks for the quick reply.
Is there any way to read from IC inspite of having code protection.

 

[Surendhar M]

Get the source file or HEX file from the manufacturer or from the CD if any provided of digital rms wattmeter and try to program the new controller with that. Then both will work similar