Need help with Atmega32!!!!

[DarkJedi]

Hi to all...

I am working with an atmega32, configuring the timers to generate cloclks fopr external circuitery, 8KHz and 250 KHz, the program works perfectli with one atmega, the problem comes when i connect other atmega to the power supply, the waveforms start to des-sincronise, anyone have any idea why this happends, i have gone myself crazy tring to find the error and come out empty handed.

thanks for your help.

 

[alphi]

Maybe one atmega32 generate some noise,and effect another by power gnd path,Pls check the gnd and vcc pcb path.

 

[DarkJedi]

Well, yeah, i kinda knew that was happening, but i have no idea how it is happening and that leads me to not knowing how to fix it, what i have done now is use separate power supplies and it seems to be working fine, though that problem still comes to hunt me night after night