If your MCU has two hardware serial ports you can use both, HSERIN and HSERIN2.
If you are bit banging, SERIN2, you can use as many different pins as you want.
If your MCU has two hardware serial ports you can use both, HSERIN and HSERIN2.
If you are bit banging, SERIN2, you can use as many different pins as you want.
Dave
Always wear safety glasses while programming.
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