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4 years, 10 months ago.
Issue with UART3_RX/PC5 in STM32L451VC
Hi, We are connected GPS Module Tx to UART3_RX/PC5 in STM32L451VC, this pin always high and unable to read GPS data, how to configure or Check PIN in MBED OS, we are done firmware for the same using without OS and found Pin is act as Rx and receives the GPS data
Sudhindra
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I am not finding any reference in mbed-os source to that micro controller. Of course the micro must be supported to use it with mbed.
If a peripheral pin is not working the first thing I check is PeripheralPins.c file in the /target folder. Pins have multiple functions and the default configuration is not always for the peripheral you want to use on that pin. Easy enough to add in the lines you need though.
posted by Graham S. 18 Jun 2019