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Difference between revisions of "Zero/hardware/gpio"

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Revision as of 10:47, 10 October 2021

 Radxa Zero >  Hardware >  GPIO


GPIO number Function4 Function3 Function2 Function1 Pin# Pin# Function1 Function2 Function3 Function4 GPIO number
+3.3V 1 2 +5.0V
490 I2C_EE_M3_SDA GPIOA_14 3 4 +5.0V
491 I2C_EE_M3_SCL GPIOA_15 5 6 GND
415 I2C_AO_S0_SDA UART_AO_B_RX I2C_AO_M0_SDA GPIOAO_3 7 8 GPIOAO_0 UART_AO_A_TXD 412
GND 9 10 GPIOAO_1 UART_AO_A_RXD 413
414 I2C_AO_S0_SCL UART_AO_B_TX I2C_AO_M0_SCL GPIOAO_2 11 12 GPIOX_9 SPI_A_MISO 501
503 I2C_EE_M1_SCL SPI_A_SCLK GPIOX_11 13 14 GND
SARADC_CH1 15 16 GPIOX_10 SPI_A_SS0 I2C_EE_M1_SDA 502
+3.3V 17 18 GPIOX_8 SPI_A_MOSI PWM_C 500
447 SPI_B_MOSI UART_EE_C_RTS GPIOH_4 19 20 GND
448 PWM_F SPI_B_MISO UART_EE_C_CTS GPIOH_5 21 22 GPIOC_7 - 475
450 I2C_EE_M1_SCL SPI_B_SCLK UART_EE_C_TX GPIOH_7 23 24 GPIOH_6 UART_EE_C_RX SPI_B_SS0 I2C_EE_M1_SDA 449
GND 25 26 SARADC_CH2
415 I2C_AO_S0_SDA UART_AO_B_RX I2C_AO_M0_SDA GPIOAO_3 27 28 GPIOAO_2 I2C_AO_M0_SCL UART_AO_B_TX I2C_AO_S0_SCL 414
NC 29 30 GND
NC 31 32 GPIOAO_4 PWMAO_C 416
NC 33 34 GND
420 UART_AO_B_TX GPIOAO_8 35 36 GPIOH_8 - 451
421 UART_AO_B_RX GPIOAO_9 37 38 GPIOAO_10 PWMAO_D 422
GND 39 40 GPIOAO_11 PWMAO_A 423

GPIO number

  • GPIO are in two banks, GPIO AO domain and GPIO EE domain
    • AO domain: GPIOAO_0 - GPIOAO_11
    • EE domain: GPIOA_14 - GPIOA_15 | GPIOH_0 - GPIOH_8 | GPIOX_0 - GPIOX_19
  • UARTs
    • AO domain: UARTAO_A | UARTAO_B
    • EE domain: UART_A | UART_B | UART_C