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Published 20 hours ago • verified publisher icon rheingoldheavy

RESET circuit is wrong

Open DeepCoreSystem opened this issue 1 year ago • 1 comments

The RESET circuit on your schematic is wrong when compared to the Atmel AppNote AVR042. In normal operation, you have 5V - 0.7V = 4.3V at the RESET pin, but it doesn't provide any over-voltage protection. And when pushing the reset switch, you will have a short circuit to ground from 5V_LDO through D7 and the switch, without any resistance. grafik

This picture below is copied directly from the AppNote AVR042 - AVR Hardware Design Considerations grafik

DeepCoreSystem avatar Jan 27 '23 12:01 DeepCoreSystem