STMicroelectronics 32L4R9IDISCOVERY, Руководство пользователя

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Table 29. MFX_V3 GPIO assignment (LQFP48)
Pin GPIO port Implemented functions Application function name
10 PA0-WKUP - -
11 PA1 MFX_aGPIO1 MFX_aGPIO1
12 PA2 MFX_aGPIO2 DSI_1V8_PWRON
13 PA3 - -
14 PA4 Reserved DAC_Out1 SPARE
15 PA5 MFX_GPIO5 µSD_DETECT
16 PA6 MFX_GPIO6 STMOD+_SEL_0
17 PA7 MFX_GPIO7 STMOD+_SEL_1
29 PA8 MFX_GPIO8 DSI_3V3_PWRON
30 PA9 MFX_GPIO9 DSI_TOUCH_INT
31 PA10 MFX_GPIO10 DSI_RESET
32 PA11 MFX_GPIO11 EXT_RESET
33 PA12 MFX_GPIO12 DCMI_PWR_EN
34 PA13 MFX_SWDIO MFX_SWDIO
37 PA14 MFX_SWCLK MFX_SWCLK
38 PA15 MFX_IDD_SH3 SH3
18 PB0 MFX_GPIO0 LED_ORANGE
19 PB1 MFX_GPIO1 JOY_UP
20 PB2 MFX_GPIO2 JOY_DOWN
39 PB3 MFX_GPIO3 JOY_RIGHT
40 PB4 MFX_GPIO4 JOY_LEFT
41 PB5 MFX_IDD_VDD_MCU IDD_VDD_MCU
42 PB6 MFX_I2C_SCL I2C1_SCL from main MCU
43 PB7 MFX_I2C_SDA I2C1_SDA from main MCU
45 PB8 MFX_I2C_ADDR I2C_ADDR (external pull-down)