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{"sheet":"Sheet1","index":0,"n_rows":116,"n_cols":7,"rows_kept":116,"cut":false,"hidden":false,"merged":[[0,0,0,6],[115,0,116,6],[2,2,2,3],[1,0,1,5],[1,6,2,6],[16,6,17,6],[4,2,4,3],[10,2,10,3],[90,2,90,3],[110,2,110,3]]}
["广州市星翼电子科技有限公司（ALIENTEK）"]
["探索者IO资源分配表",{"$nulls":5},"使用提示"]
["引脚编号","GPIO","连接资源",null,"完全\n独立","连接关系说明"]
[34,"PA0","WK_UP",null,"Y","1，按键KEY_UP\n2，可以做待机唤醒脚(WKUP)","只要KEY_UP不按下，该IO完全独立"]
[35,"PA1","RMII_REF_CLK",null,"N","接LAN8720的REFCLKO脚","该IO直接接LAN8720的REFCLKO引脚，接收50M时钟(一直有)，不建议做普通IO用"]
[36,"PA2","USART2_TX\n/RS485_RX","ETH_MDIO","N","1，RS232串口2(COM2)RX脚(P9设置)\n2，RS485 RX脚(P9设置)\n3，LAN8720的MDIO脚","该IO通过P9选择连接RS232还是RS485，并同时连接了LAN8720的MDIO脚\n这里的RS232 RX脚是指SP3232芯片的RX脚，接STM32的TX脚\n如不用LAN8720，并去掉P9跳线帽，可以做普通IO用"]
[37,"PA3","USART2_RX\n/RS485_TX","PWM_DAC","N","1，RS232串口2(COM2)TX脚(P9设置)\n2，RS485 TX脚(P9设置)\n3，PWM_DAC输出脚","该IO通过P9选择连接RS232还是RS485，并同时连接了PWM_DAC,\n这里的RS232 TX脚是指SP3232芯片的TX脚，接STM32的RX脚 \n去掉P9跳线帽，可以做普通IO用"]
[40,"PA4","STM_DAC","DCMI_HREF","Y","1，DAC_OUT1输出脚\n2，OLED/CAMERA接口的HREF引脚","该IO可做DAC输出，同时也连接在OLED/CAMERA接口，如不插外设在OLED/CAMERA接口，则可以完全独立"]
[41,"PA5","STM_ADC",null,"Y","ADC输入引脚，同时做TPAD检测脚","拔了P12的跳线帽，则该IO完全独立"]
[42,"PA6","DCMI_PCLK",null,"Y","OLED/CAMERA接口的PCLK脚","仅连接OLED/CAMERA接口的PCLK，当不使用OLED/CAMERA接口时，该IO完全独立"]
[43,"PA7","RMII_CRS_DV",null,"N","接LAN8720的CRS_DV脚","该IO直接接LAN8720的CRS_DV引脚，当LAN8720处于复位状态时，可以做普通IO用"]
[100,"PA8","DCMI_XCLK","REMOTE_IN","N","1，OLED/CAMERA接口的XCLK脚\n2，接HS0038红外接收头","同时连接了XCLK脚HS0038红外头，HS0038红外接收头，有4.7K上拉电阻，且受HS0038控制，不建议做普通IO使用"]
[101,"PA9","USART1_TX",null,"Y","串口1 TX脚，默认连接CH340的RX(P6设置)","该IO通过P6选择是否连接CH340的RXD，如果不连接，则该IO完全独立"]
[102,"PA10","USART1_RX",null,"Y","串口1 RX脚，默认连接CH340的TX(P6设置)","该IO通过P6选择是否连接CH340的TXD，如果不连接，则该IO完全独立"]
[103,"PA11","USB_D-","CAN_RX","Y","1，USB D-引脚(P11设置)\n2，CAN_RX引脚(P11设置)","该IO通过P11选择连接USB D-还是CAN_RX，如果去掉P11的跳线帽，则该IO完全独立"]
[104,"PA12","USB_D+","CAN_TX","Y","1，USB D+引脚(P11设置)\n2，CAN_TX引脚(P11设置)","该IO通过P11选择连接USB D+还是CAN_TX，如果去掉P11的跳线帽，则该IO完全独立"]
[105,"PA13","JTMS","SWDIO","N","JTAG/SWD仿真接口,没接任何外设","JTAG/SWD仿真接口，没连外设。建议仿真器选择SWD调试，这样仅SWDIO和SWDCLK两个信号即可仿真。如不用仿真，该IO可以做普通IO用(注意：有10K上/下拉电阻)"]
[109,"PA14","JTCK","SWDCLK","N","JTAG/SWD仿真接口,没接任何外设"]
[110,"PA15","JTDI","USB_PWR","N","1，JTAG仿真口(JTDI)\n2，USB_HOST接口供电控制脚","JTAG仿真口，也接USB_HOST接口的电源控制脚(USB_PWR信号)，如不用JTAG和USB_HOST接口，则可以做普通IO用(有10K上拉电阻)。"]
[46,"PB0","T_SCK",null,"Y","TFTLCD接口触摸屏SCK信号","该IO接TFTLCD模块接口的触摸屏SCK信号，当不插TFTLCD模块时，该IO完全独立"]
[47,"PB1","T_PEN",null,"Y","TFTLCD接口触摸屏PEN信号 ","该IO接TFTLCD模块接口的触摸屏PEN信号(中断)，当不插TFTLCD模块时，该IO完全独立"]
[48,"PB2","BOOT1","T_MISO","N","1，BOOT1,启动选择配置引脚(仅上电时用)\n2，TFTLCD接口触摸屏MISO信号","该IO在上电时，作BOOT1用(由B1控制上拉/下拉，设置启动模式)，同时作为TFTLCD模块接口的触摸屏MISO信号，如不插TFTLCD模块，则可做普通IO用(有10K上拉/下拉,B0控制)"]
[133,"PB3","JTDO","SPI1_SCK","N","1，JTAG仿真口(JTDO)\n2，W25Q128和WIRELESS接口的SCK信号","JTAG仿真接口，也做SPI1_SCK信号，如不用JTAG仿真接口和WIRELESS接口（不插外设即可），并且禁止W25Q128的片选信号，则可以做普通IO用"]
[134,"PB4","JTRST","SPI1_MISO","N","1，JTAG仿真口(JTRST)\n2，W25Q128和WIRELESS接口的MISO信号","JTAG仿真接口，也做SPI1_MISO信号，如不用JTAG仿真接口和WIRELESS接口（不插外设即可），并且禁止W25Q128的片选信号，则可以做普通IO用"]
[135,"PB5",null,"SPI1_MOSI","N","W25Q128和WIRELESS接口的MOSI信号","SPI1_MOSI信号，当不使用W25Q128(片选禁止)和WIRELESS接口时，可以做普通IO用"]
[136,"PB6","DCMI_D5",null,"Y","OLED/CAMERA接口的D5脚","仅连接OLED/CAMERA接口的D5，当不使用OLED/CAMERA接口时，该IO完全独立"]
[137,"PB7","DCMI_VSYNC",null,"Y","OLED/CAMERA接口的VSYNC脚","仅连接OLED/CAMERA接口的VSYNC，当不使用OLED/CAMERA接口时，该IO完全独立"]
[139,"PB8","IIC_SCL",null,"N","接24C02&MPU6050&WM8978的SCL","该IO连接24C02/MPU6050/WM8978等的SCL信号，有4.7K上拉电阻，不建议作为普通IO使用"]
[140,"PB9","IIC_SDA",null,"N","接24C02&MPU6050&WM8978的SDA","该IO连接24C02/MPU6050/WM8978等的SDA信号，有4.7K上拉电阻，不建议作为普通IO使用"]
[69,"PB10","USART3_TX",null,"Y","1，RS232串口3(COM3)RX脚(P10设置) \n2，ATK-MODULE接口的RXD脚(P10设置)","该IO通过P10选择连接RS232/ATK-MODULE接口,去掉P10的跳线帽，则该IO完全独立\n这里的RS232 RX脚是指SP3232芯片的RX脚，接STM32的TX脚"]
[70,"PB11","USART3_RX",null,"Y","1，RS232串口3(COM3)TX脚(P10设置) \n2，ATK-MODULE接口的TXD脚(P10设置)","该IO通过P10选择连接RS232/ATK-MODULE接口,去掉P10的跳线帽，则该IO完全独立\n这里的RS232 TX脚是指SP3232芯片的TX脚，接STM32的RX脚"]
[73,"PB12","I2S_LRCK",null,"N","WM8978的LRCK信号","该IO接WM8978的LRC脚，当不使用WM8978的时候，可以做普通IO使用"]
[74,"PB13","I2S_SCLK",null,"N","WM8978的SCLK信号","该IO接WM8978的BCLK脚，当不使用WM8978的时候，可以做普通IO使用"]
[75,"PB14","F_CS",null,"N","W25Q128的片选信号","该IO接W25Q128的片选信号，不建议做普通IO使用"]
[76,"PB15","LCD_BL",null,"Y","TFTLCD接口背光控制脚 ","该IO接TFTLCD模块接口的背光控制脚(BL)，当不插TFTLCD模块时，该IO完全独立"]
[26,"PC0","GBC_LED","3D_INT","N","1，ATK-MODULE接口的LED引脚\n2，MPU6050模块的中断脚","接ATK-MODULE接口的LED脚和MPU6050模块的INT脚，如不用ATK-MODULE接口和MPU6050的中断输出功能，则可以做普通IO使用"]
[27,"PC1","ETH_MDC",null,"N","接LAN8720的MDC脚","连接了LAN8720的MDC脚，如不用LAN8720（处于复位状态），则可以做普通IO使用"]
[28,"PC2","I2S_SDOUT",null,"N","WM8978的SDOUT信号","该IO接WM8978的ADCDAT脚，当不使用WM8978的时候，可以做普通IO使用"]
[29,"PC3","I2S_SDIN",null,"N","WM8978的SDIN信号","该IO接WM8978的DACDAT脚，当不使用WM8978的时候，可以做普通IO使用"]
[44,"PC4","RMII_RXD0",null,"N","接LAN8720的RXD0脚","该IO直接接LAN8720的RXD0引脚，当LAN8720处于复位状态时，可以做普通IO用"]
[45,"PC5","RMII_RXD1",null,"N","接LAN8720的RXD1脚","该IO直接接LAN8720的RXD1引脚，当LAN8720处于复位状态时，可以做普通IO用"]
[96,"PC6","I2S_MCLK","DCMI_D0","N","1，WM8978的SDIN信号\n2，OLED/CAMERA接口的D0脚","接WM8978的MCLK脚和OLED/CAMERA接口的D0，当不使用WM8978和OLED/CAMERA接口时，可以做普通IO用"]
[97,"PC7",null,"DCMI_D1","Y","OLED/CAMERA接口的D1脚","仅连接OLED/CAMERA接口的D1，当不使用OLED/CAMERA接口时，该IO完全独立"]
[98,"PC8","SDIO_D0","DCMI_D2","N","1，SD卡接口的D0\n2，OLED/CAMERA接口的D2脚","接SD卡接口的D0和OLED/CAMERA接口的D2，有47K上拉电阻，当不使用SD卡和OLED/CAMERA接口时，可做普通IO使用"]
[99,"PC9","SDIO_D1","DCMI_D3","N","1，SD卡接口的D1\n2，OLED/CAMERA接口的D3脚","接SD卡接口的D1和OLED/CAMERA接口的D3，有47K上拉电阻，当不使用SD卡和OLED/CAMERA接口时，可做普通IO使用"]
[111,"PC10","SDIO_D2",null,"N","SD卡接口的D2","仅连接SD卡接口的D2，有47K上拉电阻，当不使用SD卡时，可做普通IO使用"]
[112,"PC11","SDIO_D3",null,"N","SD卡接口的D3","仅连接SD卡接口的D3，有47K上拉电阻，当不使用SD卡时，可做普通IO使用"]
[113,"PC12","SDIO_SCK","DCMI_D4","Y","1，SD卡接口的SCK\n2，OLED/CAMERA接口的D4脚","接SD卡接口的SCK和OLED/CAMERA接口的D4，当不使用SD卡和OLED/CAMERA接口时，可做普通IO使用"]
[7,"PC13","T_CS",null,"Y","TFTLCD接口触摸屏CS信号","该IO接TFTLCD模块接口的触摸屏CS信号，当不插TFTLCD模块时，该IO完全独立"]
[8,"PC14",null,"RTC晶振","N","接32.768K晶振，不可用做IO","外接RTC晶振用，不建议做普通IO用"]
[9,"PC15",null,"RTC晶振","N","接32.768K晶振，不可用做IO","外接RTC晶振用，不建议做普通IO用"]
[114,"PD0","FSMC_D2",null,"N","FSMC总线数据线D2(LCD/SRAM共用)","FSMC_D2，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[115,"PD1","FSMC_D3",null,"N","FSMC总线数据线D3(LCD/SRAM共用)","FSMC_D3，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[116,"PD2","SDIO_CMD",null,"N","SD卡接口的CMD","仅连接SD卡接口的CMD，有47K上拉电阻，当不使用SD卡时，可做普通IO使用"]
[117,"PD3","ETH_RESET",null,"N","接LAN8720的复位脚","该IO直接接LAN8720的RESET脚，带10K下拉电阻，不建议作为普通IO使用"]
[118,"PD4","FSMC_NOE",null,"N","FSMC总线NOE(RD)(LCD/SRAM共用)","FSMC_NOE，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[119,"PD5","FSMC_NWE",null,"N","FSMC总线NWE(WR)(LCD/SRAM共用)","FSMC_NWE，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[122,"PD6","DCMI_SCL",null,"Y","OLED/CAMERA接口的SCL脚","仅连接OLED/CAMERA接口的SCL，当不使用OLED/CAMERA接口时，该IO完全独立"]
[123,"PD7","DCMI_SDA",null,"Y","OLED/CAMERA接口的SDA脚","仅连接OLED/CAMERA接口的SDA，当不使用OLED/CAMERA接口时，该IO完全独立"]
[77,"PD8","FSMC_D13",null,"N","FSMC总线数据线D13(LCD/SRAM共用)","FSMC_D13，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[78,"PD9","FSMC_D14",null,"N","FSMC总线数据线D14(LCD/SRAM共用)","FSMC_D14，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[79,"PD10","FSMC_D15",null,"N","FSMC总线数据线D15(LCD/SRAM共用)","FSMC_D15，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[80,"PD11","FSMC_A16",null,"N","FSMC总线地址线A17(SRAM专用)","FSMC_A17，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[81,"PD12","FSMC_A17",null,"N","FSMC总线地址线A18(SRAM专用)","FSMC_A18，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[82,"PD13","FSMC_A18",null,"N","FSMC总线地址线A19(SRAM专用)","FSMC_A19，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[85,"PD14","FSMC_D0",null,"N","FSMC总线数据线D0(LCD/SRAM共用)","FSMC_D0，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[86,"PD15","FSMC_D1",null,"N","FSMC总线数据线D1(LCD/SRAM共用)","FSMC_D1，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[141,"PE0","FSMC_NBL0",null,"N","FSMC总线NBL0(SRAM专用)","FSMC_NBL0，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[142,"PE1","FSMC_NBL1",null,"N","FSMC总线NBL1(SRAM专用)","FSMC_NBL1，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[1,"PE2","KEY2",null,"Y","接按键KEY2","只要KEY2不按下，该IO完全独立"]
[2,"PE3","KEY1",null,"Y","接按键KEY1","只要KEY1不按下，该IO完全独立"]
[3,"PE4","KEY0",null,"Y","接按键KEY0","只要KEY0不按下，该IO完全独立"]
[4,"PE5","DCMI_D6",null,"Y","OLED/CAMERA接口的D6脚","仅连接OLED/CAMERA接口的D6，当不使用OLED/CAMERA接口时，该IO完全独立"]
[5,"PE6","DCMI_D7",null,"Y","OLED/CAMERA接口的D7脚","仅连接OLED/CAMERA接口的D7，当不使用OLED/CAMERA接口时，该IO完全独立"]
[58,"PE7","FSMC_D4",null,"N","FSMC总线数据线D4(LCD/SRAM共用)","FSMC_D4，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[59,"PE8","FSMC_D5",null,"N","FSMC总线数据线D5(LCD/SRAM共用)","FSMC_D5，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[60,"PE9","FSMC_D6",null,"N","FSMC总线数据线D6(LCD/SRAM共用)","FSMC_D6，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[63,"PE10","FSMC_D7",null,"N","FSMC总线数据线D7(LCD/SRAM共用)","FSMC_D7，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[64,"PE11","FSMC_D8",null,"N","FSMC总线数据线D8(LCD/SRAM共用)","FSMC_D8，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[65,"PE12","FSMC_D9",null,"N","FSMC总线数据线D9(LCD/SRAM共用)","FSMC_D9，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[66,"PE13","FSMC_D10",null,"N","FSMC总线数据线D10(LCD/SRAM共用)","FSMC_D10，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[67,"PE14","FSMC_D11",null,"N","FSMC总线数据线D11(LCD/SRAM共用)","FSMC_D11，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[68,"PE15","FSMC_D12",null,"N","FSMC总线数据线D12(LCD/SRAM共用)","FSMC_D12，TFTLCD/IS62WV51216等共用，如禁止他们的片选，则可做普通IO使用"]
[10,"PF0","FSMC_A0",null,"N","FSMC总线地址线A0(SRAM专用)","FSMC_A0，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[11,"PF1","FSMC_A1",null,"N","FSMC总线地址线A1(SRAM专用)","FSMC_A1，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[12,"PF2","FSMC_A2",null,"N","FSMC总线地址线A2(SRAM专用)","FSMC_A2，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[13,"PF3","FSMC_A3",null,"N","FSMC总线地址线A3(SRAM专用)","FSMC_A3，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[14,"PF4","FSMC_A4",null,"N","FSMC总线地址线A4(SRAM专用)","FSMC_A4，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[15,"PF5","FSMC_A5",null,"N","FSMC总线地址线A5(SRAM专用)","FSMC_A5，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[18,"PF6","GBC_KEY",null,"Y","接ATK-MODULE接口的KEY脚","接ATK-MODULE接口的KEY脚，如不用ATK-MODULE接口，则该IO完全独立"]
[19,"PF7","LIGHT_SENSOR",null,"N","接光敏传感器(LS1)","接光敏传感器，可以做普通IO使用，建议仅做输出使用"]
[20,"PF8","BEEP",null,"N","接蜂鸣器(BEEP)","该IO控制蜂鸣器(BEEP)，不建议作为普通IO使用"]
[21,"PF9","LED0",null,"N","接DS0 LED灯(红色)","该IO连接DS0，即红色LED灯。如做普通IO用，则DS0也受控制，建议：仅做输出用"]
[22,"PF10","LED1",null,"N","接DS1 LED灯(绿色)","该IO连接DS1，即绿色LED灯。如做普通IO用，则DS1也受控制，建议：仅做输出用"]
[49,"PF11","T_MOSI",null,"Y","TFTLCD接口触摸屏MOSI信号","该IO接TFTLCD模块接口的触摸屏MOSI信号，当不插TFTLCD模块时，该IO完全独立"]
[50,"PF12","FSMC_A6",null,"N","FSMC总线地址线A10(SRAM/LCD共用)","FSMC_A6，IS62WV51216/TFTLCD共用，如禁止他们的片选，则可做普通IO使用"]
[53,"PF13","FSMC_A7",null,"N","FSMC总线地址线A7(SRAM专用)","FSMC_A7，IS62WV51216共用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[54,"PF14","FSMC_A8",null,"N","FSMC总线地址线A8(SRAM专用)","FSMC_A8，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[55,"PF15","FSMC_A9",null,"N","FSMC总线地址线A9(SRAM专用)","FSMC_A9，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[56,"PG0","FSMC_A10",null,"N","FSMC总线地址线A10(SRAM专用)","FSMC_A10，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[57,"PG1","FSMC_A11",null,"N","FSMC总线地址线A11(SRAM专用)","FSMC_A11，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[87,"PG2","FSMC_A12",null,"N","FSMC总线地址线A12(SRAM专用)","FSMC_A12，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[88,"PG3","FSMC_A13",null,"N","FSMC总线地址线A13(SRAM专用)","FSMC_A13，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[89,"PG4","FSMC_A14",null,"N","FSMC总线地址线A14(SRAM专用)","FSMC_A14，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[90,"PG5","FSMC_A15",null,"N","FSMC总线地址线A15(SRAM专用)","FSMC_A15，IS62WV51216专用，如禁止IS62WV51216的片选，则可做普通IO使用"]
[91,"PG6","NRF_CE",null,"Y","WIRELESS接口的CE信号","接WIRELESS接口的CE脚，当不使用WIRELESS接口时，该IO完全独立"]
[92,"PG7","NRF_CS",null,"Y","WIRELESS接口的CS信号","接WIRELESS接口的CS脚，当不使用WIRELESS接口时，该IO完全独立"]
[93,"PG8","NRF_IRQ","RS485_RE","N","1，WIRELESS接口IRQ信号\n2，RS485 RE引脚","同时连接WIRELESS接口的IRQ脚和RS485的RE引脚，当不使用WIRELESS接口和RS485时，可以做普通IO使用"]
[124,"PG9","DCMI_PWDN","1WIRE_DQ","N","1，OLED/CAMERA接口的PWDN脚\n2，接单总线接口(U12),即DHT11/DS18B20","同时连接OLED/CAMERA接口的PWDN脚和单总线接口(U12)的DQ脚，当不使用OLED/CAMEAR接口和单总线接口的时候，可以做普通IO使用（有4.7K上拉电阻）"]
[125,"PG10","FSMC_NE3",null,"N","FSMC总线的片选信号3，为外部SRAM片选信号","FSMC_NE3，接IS62WV51216的片选信号，不建议作为普通IO使用"]
[126,"PG11","RMII_TX_EN",null,"N","接LAN8720的TXEN脚","该IO直接接LAN8720的TXEN引脚，当LAN8720处于复位状态时，可以做普通IO用"]
[127,"PG12","FSMC_NE4",null,"Y","FSMC总线的片选信号4，为LCD片选信号","FSMC_NE4，接TFTLCD接口的片选信号，当不使用TFTLCD接口时，该IO完全独立"]
[128,"PG13","RMII_TXD0",null,"N","接LAN8720的TXD0脚","该IO直接接LAN8720的TXD0引脚，当LAN8720处于复位状态时，可以做普通IO用"]
[129,"PG14","RMII_TXD1",null,"N","接LAN8720的TXD1脚","该IO直接接LAN8720的TXD0引脚，当LAN8720处于复位状态时，可以做普通IO用"]
[132,"PG15","DCMI_RESET",null,"Y","OLED/CAMERA接口的RESET脚","仅连接OLED/CAMERA接口的RESET，当不使用OLED/CAMERA接口时，该IO完全独立"]
["   引脚编号：对应STM32F407ZGT6的引脚编号\n      GPIO：STM32F407ZGT6的IO口\n   完全独立：指该IO通过一定的方法，可以达到完全悬空的效果（即不接任何其他外设，且不接任何上拉/下拉电阻）\n连接关系说明：说明每个IO口与外设的连接关系\n   使用提示：介绍每个IO的特点和使用方法，方便大家掌握开发板每一个IO口的使用"]

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