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Board Entry Info
| Generic Board | Pkg | Product Line | Flash | RAM | Cortex | FPU | CPU | Wireless | USB | CAN/FDCAN | ETH | SVD |
|---|
| Generic U031F4Px | P | STM32U031xx | 16 KB | 12 KB | Cortex-M0+ | No | Single CPU | No | No | No | No | STM32U031.svd |
| Generic U031F6Px | P | STM32U031xx | 32 KB | 12 KB | Cortex-M0+ | No | Single CPU | No | No | No | No | STM32U031.svd |
| Generic U031F8Px | P | STM32U031xx | 64 KB | 12 KB | Cortex-M0+ | No | Single CPU | No | No | No | No | STM32U031.svd |
See more info in the STM32duino repository
PWM Timer Pins
| Pin | PWM Timer | Channel | Generic label |
| PA_0 | TIM2 | 1 | D0/A0 |
| PA_1 (no. alternatives: 1) | TIM2 | 2 | D1/A1 |
| PA_1_ALT1 | TIM15 | 1N |
| PA_2 (no. alternatives: 1) | TIM2 | 3 | D2/A2 |
| PA_2_ALT1 | TIM15 | 1 |
| PA_3 (no. alternatives: 1) | TIM2 | 4 | D3/A3 |
| PA_3_ALT1 | TIM15 | 2 |
| PA_5 | TIM2 | 1 | D5/A5 |
| PA_6 (no. alternatives: 1) | TIM3 | 1 | D6/A6 |
| PA_6_ALT1 | TIM16 | 1 |
| PA_7 (no. alternatives: 1) | TIM1 | 1N | D7/A7 |
| PA_7_ALT1 | TIM3 | 2 |
| PA_8 | TIM1 | 1 | D8 |
| PA_9_R | TIM1 | 2 | D25 |
| PA_10_R | TIM1 | 3 | D26 |
| PA_11 | TIM1 | 4 | D9 |
| PB_0 (no. alternatives: 1) | TIM1 | 2N | D13/A8 |
| PB_0_ALT1 | TIM3 | 3 |
| PB_1 (no. alternatives: 1) | TIM1 | 3N | D14/A9 |
| PB_1_ALT1 | TIM3 | 4 |
| PB_4 | TIM3 | 1 | D15 |
| PB_5 | TIM3 | 2 | D16 |
| PB_6 | TIM16 | 1N | D17 |
| PB_8 | TIM16 | 1 | D19 |
ADC Pins
| Pin | ADC | Channel | Generic label |
| PA_0 | ADC1 | 4 | D0/A0 |
| PA_1 | ADC1 | 5 | D1/A1 |
| PA_2 | ADC1 | 6 | D2/A2 |
| PA_3 | ADC1 | 7 | D3/A3 |
| PA_4 | ADC1 | 8 | D4/A4 |
| PA_5 | ADC1 | 9 | D5/A5 |
| PA_6 | ADC1 | 10 | D6/A6 |
| PA_7 | ADC1 | 14 | D7/A7 |
| PB_0 | ADC1 | 17 | D13/A8 |
| PB_1 | ADC1 | 18 | D14/A9 |
UART Pins
| Pin | Peripheral | Signal | Generic label |
| PA_0 | USART4 | TX | D0/A0 |
| PA_2 (no. alternatives: 1) | LPUART1 | TX | D2/A2 |
| PA_2_ALT1 | USART2 | TX |
| PA_5 | USART3 | TX | D5/A5 |
| PA_9_R | USART1 | TX | D25 |
| PB_6 (no. alternatives: 1) | LPUART2 | TX | D17 |
| PB_6_ALT1 | USART1 | TX |
| PB_8 | USART3 | TX | D19 |
| PA_1 | USART4 | RX | D1/A1 |
| PA_3 (no. alternatives: 1) | LPUART1 | RX | D3/A3 |
| PA_3_ALT1 | USART2 | RX |
| PA_7 | USART3 | RX | D7/A7 |
| PA_10_R | USART1 | RX | D26 |
| PB_7 (no. alternatives: 1) | LPUART2 | RX | D18 |
| PB_7_ALT1 | USART1 | RX |
| PB_9 | USART3 | RX | D20 |
| PA_1 | USART2 | RTS | D1/A1 |
| PA_12 | USART1 | RTS | D10 |
| PB_1 (no. alternatives: 2) | LPUART1 | RTS | D14/A9 |
| PB_1_ALT1 | LPUART2 | RTS |
| PB_1_ALT2 | USART3 | RTS |
| PA_0 | USART2 | CTS | D0/A0 |
| PA_6 (no. alternatives: 1) | LPUART1 | CTS | D6/A6 |
| PA_6_ALT1 | USART3 | CTS |
| PA_11 | USART1 | CTS | D9 |
| PB_0 | LPUART2 | CTS | D13/A8 |
| PB_4 | USART1 | CTS | D15 |
| PB_7 (no. alternatives: 1) | USART4 | CTS | D18 |
| PB_7_ALT1 | USART1 | RX |
SPI Pins
| Pin | Peripheral | Signal | Generic label |
| PA_7 | SPI1 | MOSI | D7/A7 |
| PA_12 (no. alternatives: 1) | SPI1 | MOSI | D10 |
| PA_12_ALT1 | SPI2 | MOSI |
| PB_5 | SPI1 | MOSI | D16 |
| PA_6 | SPI1 | MISO | D6/A6 |
| PA_11 (no. alternatives: 1) | SPI1 | MISO | D9 |
| PA_11_ALT1 | SPI2 | MISO |
| PB_4 | SPI1 | MISO | D15 |
| PA_1 (no. alternatives: 1) | SPI1 | SCLK | D1/A1 |
| PA_1_ALT1 | SPI2 | SCLK |
| PA_5 | SPI1 | SCLK | D5/A5 |
| PA_4 | SPI1 | SSEL | D4/A4 |
| PA_10_R | SPI2 | SSEL | D26 |
| PB_0 | SPI1 | SSEL | D13/A8 |
| PB_9 | SPI2 | SSEL | D20 |
I2C Pins
| Pin | Peripheral | Signal | Generic label |
| PA_6 (no. alternatives: 1) | I2C2 | SDA | D6/A6 |
| PA_6_ALT1 | I2C3 | SDA |
| PA_10_R (no. alternatives: 1) | I2C1 | SDA | D26 |
| PA_10_R_ALT1 | I2C2 | SDA |
| PB_4 (no. alternatives: 1) | I2C2 | SDA | D15 |
| PB_4_ALT1 | I2C3 | SDA |
| PB_7 (no. alternatives: 1) | I2C1 | SDA | D18 |
| PB_7_ALT1 | I2C2 | SDA |
| PB_9 (no. alternatives: 1) | I2C1 | SDA | D20 |
| PB_9_ALT1 | I2C2 | SDA |
| PA_7 (no. alternatives: 1) | I2C2 | SCL | D7/A7 |
| PA_7_ALT1 | I2C3 | SCL |
| PA_9_R (no. alternatives: 1) | I2C1 | SCL | D25 |
| PA_9_R_ALT1 | I2C2 | SCL |
| PB_6 (no. alternatives: 1) | I2C1 | SCL | D17 |
| PB_6_ALT1 | I2C2 | SCL |
| PB_8 (no. alternatives: 1) | I2C1 | SCL | D19 |
| PB_8_ALT1 | I2C2 | SCL |
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