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M80: ATX Power On
- C"port_name" (RRF 3.4beta4 and later) Name of the pin used to control the power supply
- M80 C"pson" ; allocates the pin and sets the pin in the power on state.
- M80 C"!pson" ; invert the PS_ON output for Meanwell power supplies
Turns on the ATX power supply from standby mode to fully operational mode using the power supply control pin on the External 5V header. If a deferred power down command was set up using M81 S1 then it is cancelled.
In RRF 3.4.0beta6 and later, M80 will do nothing unless you have previously allocated a pin to control power using either M80 or M81 with C parameter. This would normally be done in the config.g file.