Function STM32 pin Pin Pin STM32 pin Function
GPIO6 / TIM5_CH2 PH11 31 32 PD13 GPIO12 / TIM4_CH2
GPIO13 /TIM3_CH2 PC7 33 34 - GND
GPIO19 / SAI2_FSA PI7 35 36 PB13 GPIO16 / USART3_CTS
GPIO26 / SDMMC3_D2 PF5 37 38 PI6 GPIO20 / SAI2_SDA
GND - 39 40 PF11 GPIO21 / SAI2_SDB
UM2534
GPIO expansion connectors
UM2534 - Rev 1
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