Hi there,
I'm planning to use PJ1 with alternative function U3Tx, but reading the datasheet:
"■ Slow GPIO pads: These pads provide 2-mA drive strength and are designed to be sensitive to
voltage inputs. The following GPIOs port pins are designed with Slow GPIO Pads:
– PJ1"
I have to drive a 6N137 diode, so my question is if that 2-mA limitation also applies to PJ1 configured as U3Tx or only if used as PJ1 GPIO. Should I use PA5 instead? (alternative U3Tx pin with 12-mA capability).
Thanks,
B