GPIO 拓展座
瑞莎 ROCK Pi S 配备 2 个 26 引脚的 GPIO 扩展接口，为硬件扩展提供了高度灵活的接口支持。
用户可以通过 GPIO 口连接各类传感器、执行器、通信模块、显示屏以及其他嵌入式外设，从而快速实现物联网（IoT）、机器人控制、工业自动化等领域的原型开发与功能验证。
26 Pin GPIO 拓展座 1
| Function4 | Function3 | Function2 | Function1 | Pin# | Pin# | Function1 | Function2 | Function3 | Function4 |
|---|---|---|---|---|---|---|---|---|---|
| +3.3V | 1 | 2 | +5.0V | ||||||
| I2C1_SDA | GPIO0_B3 | 3 | 4 | +5.0V | |||||
| I2C1_SCL | GPIO0_B4 | 5 | 6 | GND | |||||
| PDM_CLK_M_M2 | I2S0_8CH_MCLK | GPIO2_A4 | 7 | 8 | GPIO2_A1 | UART0_TX | SPI0_MOSI | ||
| GND | 9 | 10 | GPIO2_A0 | UART0_RX | SPI0_MISO | ||||
| I2C3_SDA_M0 | PWM2 | GPIO0_B7 | 11 | 12 | GPIO2_A5 | I2S0_8CH_SCLK_TX | |||
| I2C3_SCL_M0 | PWM3 | GPIO0_C0 | 13 | 14 | GND | ||||
| SPDIF_TX | GPIO0_C1 | 15 | 16 | GPIO2_B2 | I2S0_8CH_SDO1 | ||||
| +3.3V | 17 | 18 | GPIO2_B1 | I2S0_8CH_SDO0 | |||||
| SPI2_MOSI | UART2_TX_M0 | UART1_RTSN | GPIO1_C7 | 19 | 20 | GND | |||
| SPI2_MISO | UART2_RX_M0 | UART1_CTSN | GPIO1_C6 | 21 | 22 | GPIO2_A7 | I2S0_8CH_LRCK_TX | ||
| SPI2_CLK | I2C0_SDA | UART1_RX | GPIO1_D0 | 23 | 24 | GPIO1_D1 | UART1_TX | I2C0_SCL | SPI2_CSN0 |
| GND | 25 | 26 | ADC_IN0 |
26 Pin GPIO 拓展座 2
| Function4 | Function3 | Function2 | Function1 | Pin# | Pin# | Function1 | Function2 | Function3 | Function4 |
|---|---|---|---|---|---|---|---|---|---|
| GND | 27 | 28 | GPIO2_B5 | I2S0_8CH_SDI0 | PDM_SDI0_M2 | ||||
| ADC_KEY_IN1 | 29 | 30 | GPIO2_B6 | I2S0_8CH_SDI1 | PDM_SDI1_M2 | ||||
| MICBIAS2 | 31 | 32 | GPIO2_B7 | I2S0_8CH_SDI2 | PDM_SDI2_M2 | ||||
| MICBIAS1 | 33 | 34 | GPIO2_C0 | I2S0_8CH_SDI3 | PDM_SDI3_M2 | ||||
| MICN8 | 35 | 36 | MCIP8 | ||||||
| MICN7 | 37 | 38 | MCIP7 | ||||||
| UART3_TX | I2C3_SCL_M1 | SPI1_CSN0 | GPIO3_B5 | 39 | 40 | GPIO3_B4 | SPI1_MOSI | I2C3_SDA_M1 | UART3_RX |
| SPI1_CLK | GPIO3_B3 | 41 | 42 | GPIO3_B2 | SPI1_MISO | ||||
| I2S0_8CH_SDO3 | GPIO2_B4 | 43 | 44 | GPIO2_B3 | I2S0_8CH_SDO2 | ||||
| I2S0_8CH_LRCK_RX | GPIO2_B0 | 45 | 46 | GPIO2_A6 | I2S0_8CH_SCLK_RX | PDM_CLK_S_M2 | |||
| MICN2 | 47 | 48 | MCIP2 | ||||||
| MICN1 | 49 | 50 | MCIP1 | ||||||
| LINEOUT_R | 51 | 52 | LINEOUT_L |