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//todo: OC mode for CH559 |
I have configured the pins on Port 4 as output to use I2C devices with them. Port 4 has a drive limit:
bP4_DRV - P4 port output drive capability selection, this bit is 0 to select the drive current 5mA level. This bit is 1 to select the drive current 20mA level
At default 0 this seems safe for the attached devices. It might be a usable workaround.
ch55xduino/ch55xduino/ch55x/cores/ch55xduino/wiring_digital.c
Line 165 in 333ef3e
I have configured the pins on Port 4 as output to use I2C devices with them. Port 4 has a drive limit:
bP4_DRV - P4 port output drive capability selection, this bit is 0 to select the drive current 5mA level. This bit is 1 to select the drive current 20mA level
At default 0 this seems safe for the attached devices. It might be a usable workaround.