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Introduction
This guide is written for using Radxa CM3 SoM with the CM3 IO board. The purpose is to learn the
details of the boards as well as how to prepare and set up for basic use.
Overview
What you need
Necessary
•
CM3(any variant) + CM3 IO board
•
If the CM3 doesn't have eMMC, a micro SD card larger than 8GB is required for OS
•
Power supply
•
The main PSU input (DC) is a 2.1mm DC tip positive +12V(only) input.
o
Monitor and HDMI Cable
•
CM3 IO board is equipped with a full sized HDMI connector. HDMI capable monitor is
o
recommended.
HDMI EDID display data is used to determine the best display resolution. On monitors
o
and TVs that support 1080p (or 4K) this resolution will be selected. If 1080p is not
supported the next available resolution reported by EDID will be used. This selected
mode will work with MOST but not all monitors/TVs.
USB to TTL serial cable
•
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Summary of Contents for Radxa ROCK 3
- Page 1 Introduction This guide is written for using Radxa CM3 SoM with the CM3 IO board. The purpose is to learn the details of the boards as well as how to prepare and set up for basic use. Overview What you need Necessary •...
- Page 2 • Install image to eMMC, refer Install to eMMC from USB port (Radxa CM3 IO) • USB 3.0 There is one USB 3.0 A port on the IO board, supporting 5.0Gbps. The USB 3.0 function is shared with SATA2, a 1in->2out mux CH482D is used for function switching to USB 3.0 or SATA2.
- Page 3 LCD2: MIPI DSI1 • Pin Name VCC_LEDA2 VCC_LEDA2 VCC_LEDA2 VCC_LEDK2 VCC_LEDK2 VCC_LEDK2 VCC_LEDK2 10 GND 11 MIPI_DSI_TX_D2P 12 MIPI_DSI_TX_D2N 13 GND 14 MIPI_DSI_TX_D1P 15 MIPI_DSI_TX_D1N 16 GND 17 MIPI_DSI_TX_CLKP 18 MIPI_DSI_TX_CLKN 19 GND 20 MIPI_DSI_TX_D0P 21 MIPI_DSI_TX_D0N 22 GND 23 MIPI_DSI_TX_D3P...
- Page 4 24 MIPI_DSI_TX_D3N 25 GND 26 NC 27 RESET 28 GND 29 VCC_1V8 30 VCC_LCD_MIPI 31 VCC_LCD_MIPI eDP 40P • Pin Name EDP_TX_D3N EDP_TX_D3P EDP_TX_D2N EDP_TX_D2P EDP_TX_D1N 10 EDP_TX_D1P 11 GND 12 EDP_TX_D0N 13 EDP_TX_D0P 14 GND...
- Page 5 15 EDPTX_AUXP 16 EDPTX_AUXN 17 GND 18 VCC3V3_LCD 19 VCC3V3_LCD 20 VCC3V3_LCD 21 VCC3V3_LCD 22 NC 23 GND 24 GND 25 GND 26 GND 27 NC 28 GND 29 GND 30 GND 31 GND 32 LCD0_BL_EN 33 LCD0_BL_PWM5 34 NC 35 NC 36 VCC12V_LCD 37 VCC12V_LCD...
- Page 6 40 NC 41 NC 42 NC J12 & J13 Touch Panel • Pin Name SCL_3V3 SDA_3V3 INT_3V3 RST_3V3 VCC_TP J14 & J15 2x MIPI CSI • Pin Name RESET PWDN CAM_CLKOUT I2C_SCL I2C_SDA 10 2V8...
- Page 7 11 1V8 12 GND 13 MIPI_CSI_RX_D0P 14 MIPI_CSI_RX_D0N 15 NC 16 MIPI_CSI_RX_D1P 17 MIPI_CSI_RX_D1N 18 GND 19 MIPI_CSI_RX_CLK0P 20 MIPI_CSI_RX_CLK0N 21 GND 22 NC 23 NC 24 GND 25 NC 26 NC Pin Name 3.3V Name Number WL_nDis 1...
- Page 8 BT_nDis 3 Name Number PWRON_KEY 1 RUN_PG(NC) 3 Name Number 5V0_USB30 USB2_HOST3_DM 2 USB2_HOST3_DP 3 Name Number NRPIBOOT(NC) 2 EEPROM_NWP 4 AIN0(NC) AIN1(NC) SYNC_IN(NC) SYNC_OUT(NC) 9...
- Page 9 TV_OUT(NC) RUN_PG(NC) PWRON_KEY Name Number VCC5V0_USB2 1 VCC5V0_USB2 2 USB3_DM USB4_DM USB3_DP USB4_DP CON1 General purpose input-output (GPIO) connector Radxa CM3 IO has a 40-pin expansion header. Each pin is distinguished by color. 1. Hardware V1.1...
- Page 10 Functio Funct Function Func Function3 Function2 Function2 Function3 ion1 tion4 +3.3V 1 2 +5.0V PWM2_ SPI0_MOSI_ I2C2_SDA_ GPIO 4 +5.0V 0_B6 PWM1_ SPI0_CLK_ I2C2_SCL_ GPIO 0_B5 SDMMC2_P I2S1_SDI3_ GPIO GPIO0_ UART2_TX WREN_M0 3_D5 GPIO0_ UART2_R X_M0 UART0_CTS GPIO GPIO3_ I2S1_SCLK SDMMC2_ PWM0_M1 11 12...
- Page 11 I2C4_S I2S2_SDO_M SPI3_CLK_ GPIO GPIO4_ SPI3_CS0_ I2S1_SCLK 23 24 CL_M0 4_B3 SARAD 25 26 C_VIN3 I2C2_SDA_ GPIO GPIO4_ I2C2_SCL_ I2S1_SDO3 27 28 4_B4 ISP_PRELIG I2S1_SDO2 GPIO 29 30 HT_TRIG 4_B1 SPI0_MISO GPIO GPIO4_ PWM11_IR PWM6 31 32 0_C5 SPI0_CS0_ GPIO PWM7_IR 33 34 0_C6...
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