Using bit 20 (gpio=21=op,dh in config.txt) and POWER_OFF_ON_HALT=1 in the EEPROM make standby and shutdown appear the same externally except you watch pin 20 instead of the 3.3v pin. This however changes nothing so far as the debounce timing on the button and state control to power up from standby or shutdown. This requires a circuit with timers and latches using an inhibit signal. In other words, a custom board design that was not necessary on a Pi4. I think you can declare victory now.
Statistics: Posted by h_smith_usa — Mon Sep 02, 2024 10:59 pm