RockpiS/hardware/gpio

    ROCK Pi S >  Hardware >  GPIO

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    ROCK Pi S >  Hardware >  GPIO

General purpose input-output (GPIO) connector

ROCK Pi S has two 26-pin expansion header. Each pin is distinguished by color.

Hardware V10

26-pin Header 1

GPIO number	Func4	Func3	Func2	Func1	Pin#	Pin#	Func1	Func2	Func3	Func4	GPIO number
			+3.3V		1	2	+5.0V
12			I2C1_SCL	GPIO0_B4	3	4	+5.0V
11			I2C1_SDA	GPIO0_B3	5	6	GND
69			I2S0_SCLK_TX	GPIO2_A5	7	8	GPIO4_D3	SDMMC_D3	UART2_TX_M1	PMU_ST3	155
64		SPI0_MISO	UART0_RX	GPIO2_A0	9	10	GPIO4_D2	SDMMC_D2	UART2_RX_M1	PMU_ST2	154
65		SPI0_MOSI	UART0_TX	GPIO2_A1	11	12	GPIO0_C0	PWM3	I2C3_SCL_M0		16
66	I2C2_SDA	SPI0_CLK	UART0_CTSN	GPIO2_A2	13	14	GND
67	I2C2_SCL	SPI0_CSN0	UART0_RTSN	GPIO2_A3	15	16	GPIO2_A7	I2S0_8CH_LRCK_TX			71
				+3.3V	17	18	GPIO2_B1	I2S0_8CH_SDO0			73
55	SPI2_MOSI	UART2_TX_M0	UART1_RTSN	GPIO1_C7	19	20	GND
54	SPI2_MISO	UART2_RX_M0	UART1_CTSN	GPIO1_C6	21	22	GPIO0_B6	PWM1			14
56	SPI2_CLK	I2C0_SDA	UART1_RX	GPIO1_D0	23	24	GPIO1_D1	UART1_TX	I2C0_SCL	SPI2_CSN0	57
				GND	25	26	GPIO0_B7	PWM2	I2C3_SDA_M0		15

Warning

Pin#8 and Pin#10 cannot be used as GPIO, UART function pins since they are the data pins of SDMMC.

26-pin Header 2

Func1	Pin#	Pin#	Func1	Func2	Func3	GPIO number
GND	1	2	GPIO2_A6	I2S0_8CH_SCLK_RX	PDM_CLK_S_M2	70
ADC_KEY_IN1	3	4	GPIO2_B5	I2S0_8CH_SDI0	PDM_SDI0_M2	77
MICBIAS2	5	6	GPIO2_B6	I2S0_8CH_SDI1	PDM_SDI1_M2	78
MICBIAS1	7	8	GPIO2_B7	I2S0_8CH_SDI2	PDM_SDI2_M2	79
MICN8	9	10	MCIP8
MICN7	11	12	MCIP7
MICN6	13	14	MCIP6
MICN5	15	16	MCIP5
MICN4	17	18	MCIP4
MICN3	19	20	MCIP3
MICN2	21	22	MCIP2
MICN1	23	24	MCIP1
LINEOUT_R	25	26	LINEOUT_L

Hardware V11

26-pin Header 1

GPIO number	Func4	Func3	Func2	Func1	Pin#	Pin#	Func1	Func2	Func3	Func4	GPIO number
			+3.3V		1	2	+5.0V
11			I2C1_SDA	GPIO0_B3	3	4	+5.0V
12			I2C1_SCL	GPIO0_B4	5	6	GND
69			I2S0_SCLK_TX	GPIO2_A5	7	8	GPIO2_A1	UART0_TX	SPI0_MOSI		65
				GND	9	10	GPIO2_A0	UART0_RX	SPI0_MISO		64
15		I2C3_SDA_M0	PWM2	GPIO0_B7	11	12	GPIO2_A2	UART0_CTSN	SPI0_CLK	I2C2_SDA	66
16		I2C3_SCL_M0	PWM3	GPIO0_C0	13	14	GND
17			SPDIF_TX	GPIO0_C1	15	16	GPIO2_A3	UART0_RTSN	SPI0_CSN0	I2C2_SCL	67
				+3.3V	17	18	GPIO2_B1	I2S0_8CH_SDO0			73
55	SPI2_MOSI	UART2_TX_M0	UART1_RTSN	GPIO1_C7	19	20	GND
54	SPI2_MISO	UART2_RX_M0	UART1_CTSN	GPIO1_C6	21	22	GPIO0_B6	PWM1			14
56	SPI2_CLK	I2C0_SDA	UART1_RX	GPIO1_D0	23	24	GPIO1_D1	UART1_TX	I2C0_SCL	SPI2_CSN0	57
				GND	25	26	ADC_IN0

26-pin Header 2

Func1	Pin#	Pin#	Func1	Func2	Func3	GPIO number
GND	1	2	GPIO2_A6	I2S0_8CH_SCLK_RX	PDM_CLK_S_M2	70
ADC_KEY_IN1	3	4	GPIO2_B5	I2S0_8CH_SDI0	PDM_SDI0_M2	77
MICBIAS2	5	6	GPIO2_B6	I2S0_8CH_SDI1	PDM_SDI1_M2	78
MICBIAS1	7	8	GPIO2_B7	I2S0_8CH_SDI2	PDM_SDI2_M2	79
MICN8	9	10	MCIP8
MICN7	11	12	MCIP7
MICN6	13	14	MCIP6
MICN5	15	16	MCIP5
MICN4	17	18	MCIP4
MICN3	19	20	MCIP3
MICN2	21	22	MCIP2
MICN1	23	24	MCIP1
LINEOUT_R	25	26	LINEOUT_L

More details about 40-pin Header

Pins marked with color orange are designed for debug console.

IO Voltage

RK3308 have two IO voltages, 1.8V/3.3V. For ROCK Pi S, the voltage level of GPIOs showed in the tables above are 3.3V and tolerance of those are 3.63V.

GPIO number

Rockchip RK3308 GPIO has 5 banks, GPIO0 to GPIO4, each bank has 32pins, naming as below:

   GPIO0_A0 ~ A7 
   GPIO0_B0 ~ B7
   GPIO0_C0 ~ C7
   GPIO0_D0 ~ D7
   
   GPIO1_A0 ~ A7
   ....
   GPIO1_D0 ~ D7

For Rockchip 4.4 kernel, the GPIO number can be calculated as below, take GPIO4_D3(PIN8 on 26PIN GPIO) as an example:

   GPIO4_D3 = 32*4 + 8*3 + 3 = 155

To set GPIO4_D3 output

   cd /sys/class/gpio
   echo 155 > export
   cd gpio155
   echo out > direction
   echo 1 > value     # output high
   echo 0 > value     # output low

RockpiS/hardware/gpio

Contents

General purpose input-output (GPIO) connector

Hardware V10

26-pin Header 1

26-pin Header 2

Hardware V11

26-pin Header 1

26-pin Header 2

More details about 40-pin Header

IO Voltage

GPIO number