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Hardware interface description

Interface overview

ROCK 3C V1.4 Overview

40 PIN GPIO

GPIO Voltage

voltage range

TypeVoltageTolerance
GPIO3.3V3.63V
ADC1.8V1.98V

GPIO Interfaces

ROCK 3C provides a 40pin GPIO socket, which is compatible with most sensor applications on the market.

caution

Tips: The actual compatibility is subject to usage.

caution

Pin 3 and Pin 5 have additional pull-up to power downstream I2C devices, as such when used as GPIO they may not work correctly.

GPIO numberFunction5Function4Function3Function2Function1Pin#Pin#Function1Function2Function3Function4Function5GPIO number
+3.3V
1
2
+5.0V
32I2C3_SDA_M0UART3_RX_M0GPIO1_A0
3
4
+5.0V
33I2C3_SCL_M0UART3_TX_M0GPIO1_A1
5
6
GND
116PWM14_M0GPIO3_C4
7
8
GPIO0_D1
UART2_TX_M0
25
GND
9
10
GPIO0_D0
UART2_RX_M0
24
97GPIO3_A1
11
12
GPIO3_A3I2S3_SCLK_M099
98I2S3_MCLK_M0GPIO3_A2
13
14
GND
104GPIO3_B0
15
16
GPIO3_B1UART4_RX_M1PWM8_M0105
+3.3V
17
18
GPIO3_B2UART4_TX_M1PWM9_M0106
147PWM15_IR_M1I2S3_SCLK_M1SPI3_MOSI_M1GPIO4_C3
19
20
GND
149UART9_TX_M1PWM12_M1I2S3_SDO_M1SPI3_MISO_M1GPIO4_C5
21
22
GPIO3_C1I2S1_SDO2_M2113
146PWM14_M1I2S3_MCLK_M1SPI3_CLK_M1GPIO4_C2
23
24
GPIO4_C6SPI3_CS0_M1PWM13_M1UART9_RX_M1I2S3_SDI_M1150
GND
25
26
GPIO4_D1SPI3_CS1_M1
138I2C4_SDA_M0I2S2_SDI_M1GPIO4_B2
27
28
GPIO4_B3I2C4_SCL_M0I2S2_SDO_M1139
107GPIO3_B3
29
30
GND
108GPIO3_B4
31
32
GPIO3_C2UART5_TX_M1I2S1_SDO3_M2114
115UART5_RX_M1I2S1_SCLK_RX_M2GPIO3_C3
33
34
GND
100I2S3_LRCK_M0GPIO3_A4
35
36
GPIO3_A7103
36I2S1_SCLK_RX_M0GPIO1_A4
37
38
GPIO3_A6I2S3_SDI_M0102
GND
39
40
GPIO3_A5I2S3_SDO_M0101

wiringX GPIO mapping

MIPI CSI

PINName
1VCC_CAM
2I2C2_SDA_M1
3I2C2_SCL_M1
4CIF_CLKOUT
5PWDN_GPIO3_C6
6GND
7MIPI_CSI_RX_CLK0P
8MIPI_CSI_RX_CLK0N
9GND
10MIPI_CSI_RX_D1P
11MIPI_CSI_RX_D1N
12GND
13MIPI_CSI_RX_D0P
14MIPI_CSI_RX_D0N
15GND

MIPI DSI

PINName
1VCC_MIPI
2VCC_MIPI
3GND
4I2C3_SDA_M1
5I2C3_SCL_M1
6GND
7MIPI_DSI_TX1_D0P
8MIPI_DSI_TX1_D0N
9GND
10MIPI_DSI_TX1_CLKP
11MIPI_DSI_TX1_CLKN
12GND
13MIPI_DSI_TX1_D1P
14MIPI_DSI_TX1_D1N
15GND

FAN

ROCK 3C has a 2PIN fan power interface, the specification is GH 2PIN 1.25mm