| STM32F103核心板 IO资源分配表 |
| 引脚编号 | GPIO | 连接资源 | 完全
独立 | 连接关系说明 |
| 34 | PA0 | WK_UP |
| Y | 1，按键KEY_UP
2，可以做待机唤醒脚(WKUP) |
| 35 | PA1 | STM_ADC |
| Y | ADC输入引脚 |
| 36 | PA2 | USART2_TX |
| Y |
|
| 37 | PA3 | USART2_RX |
| Y |
|
| 40 | PA4 | STM_DAC |
| Y | 1，DAC_OUT1输出脚 |
| 41 | PA5 | SPI1_SCK |
| Y | SPI1的SCK脚，连接VS1053的SCK |
| 42 | PA6 | SPI1_MISO |
| Y | SPI1的MISO脚，连接VS1053的MISO |
| 43 | PA7 | SPI1_MOSI |
| Y | SPI1的MOSI脚，连接VS1053的MOSI |
| 100 | PA8 |
|
| Y |
|
| 101 | PA9 | USART1_TX |
| Y | 串口1 TX脚，默认连接CH340的RX(跳帽设置) |
| 102 | PA10 | USART1_RX |
| Y | 串口1 RX脚，默认连接CH340的TX(跳帽设置) |
| 103 | PA11 | USB_D- |
| Y | 1，USB D-引脚 |
| 104 | PA12 | USB_D+ |
| Y | 1，USB D+引脚 |
| 105 | PA13 |
| SWDIO | N | JTAG/SWD仿真接口,没接任何外设
注意：如要做普通IO，需先禁止JTAG&SWD |
| 109 | PA14 |
| SWDCLK | N | JTAG/SWD仿真接口,没接任何外设
注意：如要做普通IO，需先禁止JTAG&SWD |
| 110 | PA15 | JTDI |
| N | 1，JTAG仿真口(JTDI) |
| 46 | PB0 | LCD_BL |
| Y | TFTLCD接口背光控制脚 |
| 47 | PB1 | T_SCK |
| Y | TFTLCD接口触摸屏SCK信号 |
| 48 | PB2 | BOOT1 | T_MISO | N | 1，BOOT1,启动选择配置引脚(仅上电时用)
2，TFTLCD接口触摸屏MISO信号 |
| 133 | PB3 |
|
| Y |
|
| 134 | PB4 |
|
| Y |
|
| 135 | PB5 | LED0 |
| N | 接DS0 LED灯(红色) |
| 136 | PB6 | IIC_SCL |
| N | 接24C02的SCL |
| 137 | PB7 | IIC_SDA |
| N | 接24C02的SDA |
| 139 | PB8 |
|
| Y |
|
| 140 | PB9 |
|
| Y |
|
| 69 | PB10 | USART3_TX |
| Y |
|
| 70 | PB11 | USART3_RX |
| Y |
|
| 73 | PB12 | F_CS |
| N | W25Q128的片选信号 |
| 74 | PB13 | SPI2_SCK |
| N | W25Q128和WIRELESS接口的SCK信号 |
| 75 | PB14 | SPI2_MISO |
| N | W25Q128和WIRELESS接口的MISO信号 |
| 76 | PB15 | SPI2_MOSI |
| N | W25Q128和WIRELESS接口的MOSI信号 |
| 26 | PC0 |
|
| Y |
|
| 27 | PC1 |
|
| Y |
|
| 28 | PC2 |
|
| Y |
|
| 29 | PC3 |
|
| Y |
|
| 44 | PC4 |
|
| Y |
|
| 45 | PC5 |
|
| Y |
|
| 96 | PC6 |
|
| Y |
|
| 97 | PC7 |
|
| Y |
|
| 98 | PC8 | SDIO_D0 |
| N | SD卡接口的D0 |
| 99 | PC9 | SDIO_D1 |
| N | SD卡接口的D1 |
| 111 | PC10 | SDIO_D2 |
| N | SD卡接口的D2 |
| 112 | PC11 | SDIO_D3 |
| N | SD卡接口的D3 |
| 113 | PC12 | SDIO_SCK |
| Y | SD卡接口的SCK |
| 7 | PC13 |
|
| N |
|
| 8 | PC14 |
| RTC晶振 | N | 接32.768K晶振，不可用做IO |
| 9 | PC15 |
| RTC晶振 | N | 接32.768K晶振，不可用做IO |
| 114 | PD0 | FSMC_D2 |
| N | FSMC总线数据线D2(LCD/SRAM/DM9000共用) |
| 115 | PD1 | FSMC_D3 |
| N | FSMC总线数据线D3(LCD/SRAM/DM9000共用) |
| 116 | PD2 | SDIO_CMD |
| N | SD卡接口的CMD |
| 117 | PD3 |
|
| Y |
|
| 118 | PD4 | FSMC_NOE |
| N | FSMC总线NOE(RD)(LCD/SRAM/DM9000共用) |
| 119 | PD5 | FSMC_NWE |
| N | FSMC总线NWE(WR)(LCD/SRAM/DM9000共用) |
| 122 | PD6 |
|
| Y |
|
| 123 | PD7 |
|
| Y |
|
| 77 | PD8 | FSMC_D13 |
| N | FSMC总线数据线D13(LCD/SRAM/DM9000共用) |
| 78 | PD9 | FSMC_D14 |
| N | FSMC总线数据线D14(LCD/SRAM/DM9000共用) |
| 79 | PD10 | FSMC_D15 |
| N | FSMC总线数据线D15(LCD/SRAM/DM9000共用) |
| 80 | PD11 | FSMC_A16 |
| N | FSMC总线地址线A17(SRAM专用) |
| 81 | PD12 | FSMC_A17 |
| N | FSMC总线地址线A18(SRAM专用) |
| 82 | PD13 | FSMC_A18 |
| N | FSMC总线地址线A19(SRAM专用) |
| 85 | PD14 | FSMC_D0 |
| N | FSMC总线数据线D0(LCD/SRAM/DM9000共用) |
| 86 | PD15 | FSMC_D1 |
| N | FSMC总线数据线D1(LCD/SRAM/DM9000共用) |
| 141 | PE0 | FSMC_NBL0 |
| N | FSMC总线NBL0(SRAM专用) |
| 142 | PE1 | FSMC_NBL1 |
| N | FSMC总线NBL1(SRAM专用) |
| 1 | PE2 |
|
| Y |
|
| 2 | PE3 |
|
| Y |
|
| 3 | PE4 | KEY0 |
| N | 接按键KEY0 |
| 4 | PE5 | LED1 |
| N | 接DS1 LED灯(绿色) |
| 5 | PE6 |
|
| Y |
|
| 58 | PE7 | FSMC_D4 |
| N | FSMC总线数据线D4(LCD/SRAM/DM9000共用) |
| 59 | PE8 | FSMC_D5 |
| N | FSMC总线数据线D5(LCD/SRAM/DM9000共用) |
| 60 | PE9 | FSMC_D6 |
| N | FSMC总线数据线D6(LCD/SRAM/DM9000共用) |
| 63 | PE10 | FSMC_D7 |
| N | FSMC总线数据线D7(LCD/SRAM/DM9000共用) |
| 64 | PE11 | FSMC_D8 |
| N | FSMC总线数据线D8(LCD/SRAM/DM9000共用) |
| 65 | PE12 | FSMC_D9 |
| N | FSMC总线数据线D9(LCD/SRAM/DM9000共用) |
| 66 | PE13 | FSMC_D10 |
| N | FSMC总线数据线D10(LCD/SRAM/DM9000共用) |
| 67 | PE14 | FSMC_D11 |
| N | FSMC总线数据线D11(LCD/SRAM/DM9000共用) |
| 68 | PE15 | FSMC_D12 |
| N | FSMC总线数据线D12(LCD/SRAM/DM9000共用) |
| 10 | PF0 | FSMC_A0 |
| N | FSMC总线地址线A0(SRAM专用) |
| 11 | PF1 | FSMC_A1 |
| N | FSMC总线地址线A1(SRAM专用) |
| 12 | PF2 | FSMC_A2 |
| N | FSMC总线地址线A2(SRAM专用) |
| 13 | PF3 | FSMC_A3 |
| N | FSMC总线地址线A3(SRAM专用) |
| 14 | PF4 | FSMC_A4 |
| N | FSMC总线地址线A4(SRAM专用) |
| 15 | PF5 | FSMC_A5 |
| N | FSMC总线地址线A5(SRAM专用) |
| 18 | PF6 |
|
| Y |
|
| 19 | PF7 |
|
| Y |
|
| 20 | PF8 |
| Y |
|
| 21 | PF9 | T_MOSI |
| Y | TFTLCD接口触摸屏MOSI信号 |
| 22 | PF10 | T_PEN |
| Y | TFTLCD接口触摸屏PEN信号 |
| 49 | PF11 | T_CS |
| Y | TFTLCD接口触摸屏CS信号 |
| 50 | PF12 | FSMC_A6 |
| N | FSMC总线地址线A6(SRAM专用) |
| 53 | PF13 | FSMC_A7 |
| N | FSMC总线地址线A7(SRAM/DM9000共用) |
| 54 | PF14 | FSMC_A8 |
| N | FSMC总线地址线A8(SRAM专用) |
| 55 | PF15 | FSMC_A9 |
| N | FSMC总线地址线A9(SRAM专用) |
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