EVSPIN32F0251 board PA0 Pin Use

[PPate.2]

Hello ,

 I have STSPIN32F0251 Development Board. In that board schematic we have found PA0_B Label that is connected default to Pin No 12 (PA0) of MCU(STSPIN32F251) .

we want to know the importance and reason of connecting it. also where in firmware code it is defined and used.

same for PA1_B and PA2_B pins also.

we are using keil IDE and Motor Control Workbench Generated Code with MCSDK 5.4.6 version

Thanks

[Gael A]

Hello PPate.2,

The PA0_B, PA1_B and PA2_B are used for 6-STEP BEMF sensing. Therefore it is useless in FOC and can be rerouted for Hall Sensors or OverVoltage protection thanks to PA0_Hall or PA0_B_VN.