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[[rock3 | ROCK 3]] > [[rock3/hardware | Hardware]] > [[rock3/hardware/3a | ROCK 3 Model A Main Board]] | [[rock3 | ROCK 3]] > [[rock3/hardware | Hardware]] > [[rock3/hardware/3a | ROCK 3 Model A Main Board]] | ||
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This hardware user manual provides information about the features and signals available on ROCK 3A board. | This hardware user manual provides information about the features and signals available on ROCK 3A board. | ||
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==== 1.Power Button ==== | ==== 1.Power Button ==== | ||
| Line 56: | Line 52: | ||
* Wait for about 5 seconds | * Wait for about 5 seconds | ||
* Confirm ROCK 3A is in loader mode | * Confirm ROCK 3A is in loader mode | ||
| − | For Windows | + | For Linux PC: lsusb shows: Bus 001 Device 049: ID 2207:350a Fuzhou Rockchip Electronics Company |
| − | * Remove wire between pin#2 and pin#3 | + | For macOS PC: lsusb shows: Bus 000 Device 004: ID 2207:350a Fuzhou Rockchip Electronics Co., Ltd. USB download gadget |
| + | For Windows PC: Open RKDevTool and you would see "Found One LOADER Device". | ||
| + | * Remove wire between pin#2 and pin#3 before flashing images to boot device. | ||
| + | |||
| + | [[File:rock-3-a-with-label.jpg | 600px | right]] | ||
==== 3.MIPI Display Interface ==== | ==== 3.MIPI Display Interface ==== | ||
Latest revision as of 00:28, 18 June 2022
ROCK 3 > Hardware > ROCK 3 Model A Main Board
Contents
- 1 ROCK 3 Model A Main Board
- 1.1 1.Power Button
- 1.2 2.3-pin Recovery Header
- 1.3 3.MIPI Display Interface
- 1.4 4.M.2 E Key
- 1.5 5.Power LED
- 1.6 6.User LED
- 1.7 7.Power Supply
- 1.8 8.External Power
- 1.9 9.HDMI
- 1.10 10.MIPI Camera Interface
- 1.11 11.Audio: 3.5mm jack with MIC
- 1.12 12.PWM Fan
- 1.13 13.1000M Ethernet
- 1.14 14/15/21.USB
- 1.15 16.PoE
- 1.16 17.SoC
- 1.17 18: MASKROM MODE
- 1.18 19.DDR: LPDDR4
- 1.19 20.General purpose input-output (GPIO) connector
- 1.20 22.RTC
- 1.21 23.PCIE M.2 NGFF M-KEY SOCKET Interface
- 1.22 24.TF Card Interface
- 1.23 25.SPI Nor Flash
- 1.24 26. eMMC
ROCK 3 Model A Main Board
This hardware user manual provides information about the features and signals available on ROCK 3A board.
1.Power Button
The power button is used to turn the device on or off.
Short-pressing power button would power on/off the device. This is what we called power on/off via software.
Power button also provides function of hardware power on/off the device.
When the system is crashed, you can shutdown the device via this method. Press and hold the power button for at least 6 seconds. Then release the power button. After that short press power button would power on the device.
2.3-pin Recovery Header
This is the 3-pin definition table.
| Pin# | Name |
|---|---|
| 1 | FSPI_CLK |
| 2 | GND |
| 3 | RECOVERY |
About FSPI_CLK pin
Short-circuit the FSPI_CLK pin and GND pin to make SPI Nor flash unavailable.
Please note that you should short-circuit pin#1 and pin#2 always when spi nor flash is not used. Like the yellow left hat.
About Recovery pin
Short-circuit Recovery pin and GND pin to boot device into loader mode.
Below is the steps of booting device into loader mode.
- Install Linux/Android image(or at least u-boot images included) to SPI Nor flash or eMMC on board
- Short-circuit pin#2 and pin#3
- Plug the USB Male A to Male A cable to ROCK 3A OTG port(the upper USB3.0 port), the other side to PC
- Plug in the Type-C adapter
- Wait for about 5 seconds
- Confirm ROCK 3A is in loader mode
For Linux PC: lsusb shows: Bus 001 Device 049: ID 2207:350a Fuzhou Rockchip Electronics Company For macOS PC: lsusb shows: Bus 000 Device 004: ID 2207:350a Fuzhou Rockchip Electronics Co., Ltd. USB download gadget For Windows PC: Open RKDevTool and you would see "Found One LOADER Device".
- Remove wire between pin#2 and pin#3 before flashing images to boot device.
3.MIPI Display Interface
The ROCK 3A is equipped with one HDMI connector and one MIPI DSI. As for HDMI, the maximum resolution is 4k@60Hz. Any HDMI monitor should work as a display for ROCK 3A. As for MIPI DSI, it is designed for raw LCD pannel. HDMI and MIPI DSI can work at the same time.
The MIPI DSI interface pin specification shows below.
| Pin# | Name |
|---|---|
| 1 | VCC_MIPI |
| 2 | VCC_MIPI |
| 3 | GND |
| 4 | I2C_SDA_AUDIO |
| 5 | I2C_SCL_AUDIO |
| 6 | GND |
| 7 | MIPI_TX/RX_D0P |
| 8 | MIPI_TX_RX_D0N |
| 9 | GND |
| 10 | MIPI_TX/RX_CLKP |
| 11 | MIPI_TX_RX_CLKN |
| 12 | GND |
| 13 | MIPI_TX/RX_D1P |
| 14 | MIPI_TX/RX_D1N |
| 15 | GND |
4.M.2 E Key
M.2 E Key pin signal definition table.
| Pin# | Name |
|---|---|
| 1 | GND |
| 2 | VCC3V3_WF |
| 3 | USB2_M2_DP |
| 4 | VCC3V3_WF |
| 5 | USB2_M2_DM |
| 6 | WIFI_LED |
| 7 | GND |
| 8 | PCM_CLK/I2S_SCK |
| 9 | SDIO_CLK |
| 10 | PCM_SYNC/I2S_WS |
| 11 | SDMMC2_CMD_M0 |
| 12 | PCM_OUT/I2S SD_OUT |
| 13 | SDMMC2_D0_M0 |
| 14 | PCM_IN/I2S SD_IN |
| 15 | SDMMC2_D1_M0 |
| 16 | NC |
| 17 | SDMMC2_D2_M0 |
| 18 | GND |
| 19 | SDMMC2_D3_M0 |
| 20 | BT_WAKE_HOST_H_GPIO4_B4 |
| 21 | WIFI_WAKE_HOST_H_GPIO3_D5 |
| 22 | UART1_RX_M0 |
| 23 | WIFI_REG_ON_H_GPIO3_D4 |
| 32 | UART1_TX_M0 |
| 33 | GND |
| 34 | UART1_CTS_M0 |
| 35 | PCIE_TXP |
| 36 | UART1_RTS_M0 |
| 37 | PCIE_TXN |
| 38 | NC |
| 39 | GND |
| 40 | NC |
| 41 | PCIE20_RXP |
| 42 | BT_REG_NO |
| 43 | PCIE20_RXN |
| 44 | NC |
| 45 | GND |
| 46 | NC |
| 47 | PCIE20_REFCLKP |
| 48 | NC |
| 49 | PCIE20_REFCLKN |
| 50 | WIFIBT_32KIN_1T1R |
| 51 | GND |
| 52 | PCIE_PERSTN |
| 53 | PCIE_CLKREQN |
| 54 | HOST_WAKE_BT_H |
| 55 | PCIE_WAKEN |
| 56 | BT_REG_ON_H |
| 57 | GND |
| 58 | I2C4_SDA_M1 |
| 59 | NC |
| 60 | I2C4_SCL_M1 |
| 61 | NC |
| 62 | NC |
| 63 | GND |
| 64 | NC |
| 65 | NC |
| 66 | NC |
| 67 | NC |
| 68 | NC |
| 69 | GND |
| 70 | BT_WAKE |
| 71 | NC |
| 72 | VCC3V3_WF |
| 73 | NC |
| 74 | VCC3V3_WF |
| 75 | GND |
| 76 | GND |
| 77 | GND |
| 78 | NC |
| 79 | NC |
M.2 E-Key slot supports the following WiFi/BT cards (include but not as least).
| Model | Chip | WiFi | BT | Others |
|---|---|---|---|---|
| ROCK Pi Wireless Module A1(SDIO+UART) | BCM43436B0 | 2.4G | 4.2 | |
| ROCK Pi Wireless Module A2(SDIO+UART) | BCM43456 | 2.4G&5G | 5.0 | |
| ROCK Pi Wireless Module A3(SDIO+UART) | BCM43598 | 2.4G&5G | 5.0 | Support RSDB |
| ROCK Pi Wireless Module A6(SDIO+UART) | BCM43752 | 2.4G&5G, WiFi 6 | 5.0 | |
| Realtek RTL8723BE(PCIe) | RTL8723BE | 2.4G | 4.0 | |
| Realtek RTL8822CE(PCIe) | RTL8822CE | 2.4G&5G | 5.0 | |
| Intel 0MHK36(PCIe+USB) | Intel 3165 | 2.4G&5G | 4.2 | |
| Intel 7265NGW(PCIe+USB) | Intel 7265 | 2.4G&5G | 4.2 |
5.Power LED
Green power LED is always on when ROCK 3A is given power.
6.User LED
Blue user LED can be controlled via software. You can indicate the status of system application by controlling its working behavior.
7.Power Supply
The ROCK 3A is powered by Type-C port and has a wide range of input voltage, from 9V to 21V. The ROCK 3A supports USB Type-C PD 2.0 with 9V/2A, 12V/2A, 15V/2A and 20V/2A. Besides, the Pi supports QC 3.0/2.0 with 9V/2A and 12V/1.5A. The Type-C cable you using needs to support data communication. We call it USB Type-C charging data cable.
8.External Power
The voltage of external power is DC 12V.
9.HDMI
The ROCK 3A is equipped with one HDMI connector and one MIPI DSI. HDMI and MIPI can work at the same time. As for HDMI, the maximum resolution is 4k@60Hz. Any HDMI monitor should work as a display for the ROCK 3A.
HDMI port supports Consumer Electronics Control (CEC) function. Using ROCK 3A connected to a TV that supports CEC, you can use the command line cec-client application to control the inputs and the TV itself.
The HDMI interface pin specification shows below.
| Pin# | Name |
|---|---|
| 1 | HDMI_TX2P |
| 2 | GND |
| 3 | HDMI_TX2N |
| 4 | HDMI_TX1P |
| 5 | GND |
| 6 | HDMI_TX1N |
| 7 | HDMI_TX0P |
| 8 | GND |
| 9 | HDMI_TX0N |
| 10 | HDMI_TXCP |
| 11 | GND |
| 12 | HDMI_TXCN |
| 13 | HDMI_CEC |
| 14 | NC |
| 15 | DDC_SCL |
| 16 | DDC_SDA |
| 17 | GND |
| 18 | VCC5V0_HDMI |
| 19 | PORT_HPD |
10.MIPI Camera Interface
There is a wide range of camera applications in our lives. MIPI CSI 2 lane on board support 800 MP camera via FPC connector.
The MIPI CSI interface pin specification shows below.
| Pin# | Name |
|---|---|
| 1 | VCC_CAM |
| 2 | I2C4_SDA |
| 3 | I2C4_SCL |
| 4 | CAM_MCLK |
| 5 | CAM_GPIO1 |
| 6 | GND |
| 7 | MIPI_RX0_CLKP |
| 8 | MIPI_RX0_CLKN |
| 9 | GND |
| 10 | MIPI_RX0_D1P |
| 11 | MIPI_RX0_D1N |
| 12 | GND |
| 13 | MIPI_RX0_D0P |
| 14 | MIPI_RX0_D0P |
| 15 | GND |
11.Audio: 3.5mm jack with MIC
Audio can be played through speaker or headphones using a standard 3.5mm jack with MIC.
Note that HD codec supports up to 24-bit/96KHz audio.
12.PWM Fan
Definition table (From top to bottom in the picture)
| Pin# | Name |
|---|---|
| 1 | +5.0V |
| 2 | PWM |
| 3 | GND |
13.1000M Ethernet
ROCK 3A has one 1GbE LAN port.
1GbE LAN port LED status and speed table.
| LED | speed |
|---|---|
| Yellow | 1000M |
| Green | 100M |
14/15/21.USB
One Type-A USB 3.0 port with OTG switch, the upper one on USB 3.0 port
When the USB OTG Switch is switched to the host side, the Type-A USB 3.0 port also enables the attachment of peripherals such U Disk, keyboards, mice, USB dongle etc.
This USB 3.0 port supports On-The-Go(OTG) when the USB OTG Switch is switched to the device side. Thus the Soc is recognized as an device.
Take adb as an example. You can use a Type-A to Type-A cable as a bridge between you PC and ROCK 3A Board. In addition to the system configuration, you can setup the adb tool on your PC to access ROCK 3A over adb.
One Type-A USB 3.0 host port
Tthe Type-A USB 3.0 port enables the attachment of peripherals such U Disk, keyboards, mice, USB dongle etc.
Two Type-A USB 2.0 host port
These two ports enables the attachment of peripherals such U Disk, keyboards, mice, USB dongle etc.
One USB 2.0 signal on 40-pin header
According to the ROCK 3A SKU table, there are two USB 2.0 signal lines on 40-pin header, PIN 27&28.
When you want to select this USB function, you need to modify the hardware like this.
- Remove R90526 R90527
- Add R90536 R90537
16.PoE
ROCK Pi 23W PoE HAT could power on ROCK 3A.
17.SoC
SoC is RK3568.
18: MASKROM MODE
This is the 2-pin definition table.
| Pin# | Name |
|---|---|
| 1 | EMMC_CLKOUT |
| 2 | GND |
Short-circuit the EMMC_CLKOUT pin and GND pin to make eMMC unavailable.
One of the following behavior would boot ROCK 3A into MASKROM mode.
- Remove SD card + remove eMMC + remove SPI Nor Flash on board
- Remove SD card + remove eMMC + SPI Nor Flash is on board + short-circuit the FSPI_CLK pin and GND pin
- Remove SD card + insert eMMC + short-circuit the EMMC_CLKOUT pin and GND pin + SPI Nor Flash is on board + short-circuit the FSPI_CLK pin and GND pin
19.DDR: LPDDR4
20.General purpose input-output (GPIO) connector
ROCK 3A has one 40-pin expansion header. Each pin is distinguished by color.
For more details, see the ROCK 3A GPIO page.
Please note that do not touch the metal pins directly with your hands.
22.RTC
The RTC connector is designed according to the standard connector type.
You can distinguish '+3.3V' and '-' from the silk screen on the board.
| Pin# | Name |
|---|---|
| 1 | GND |
| 2 | +3.3V |
23.PCIE M.2 NGFF M-KEY SOCKET Interface
On ROCK 3A board, M.2 connector supports up to 2T M2 NVME SSD.
The PCIE M.2 interface pin specification shows below.
| Name | Pin# | Pin# | Name | |
|---|---|---|---|---|
| GND | 1 | 2 | +3.3V | |
| GND | 3 | 4 | +3.3V | |
| PERn3 | 5 | 6 | NC | |
| PERp3 | 7 | 8 | NC | |
| GND | 9 | 10 | DAS/DSS# | |
| PETn3 | 11 | 12 | +3.3V | |
| PETp3 | 13 | 14 | +3.3V | |
| GND | 15 | 16 | +3.3V | |
| PERn2 | 17 | 18 | +3.3V | |
| PERp2 | 19 | 20 | EMMC_CMD | |
| GND | 21 | 22 | NC | |
| PETn2 | 23 | 24 | NC | |
| PETp2 | 25 | 26 | NC | |
| GND | 27 | 28 | NC | |
| PERn1 | 29 | 30 | NC | |
| PERp1 | 31 | 32 | NC | |
| GND | 33 | 34 | NC | |
| PETn1 | 35 | 36 | NC | |
| PETp1 | 37 | 38 | DEVSLP | |
| GND | 39 | 40 | NC | |
| PERn0/SATA-B+ | 41 | 42 | NC | |
| PERp0/SATA-B- | 43 | 44 | NC | |
| GND | 45 | 46 | NC | |
| PETn0/SATA-A- | 47 | 48 | NC | |
| PETp0/SATA-A+ | 49 | 50 | PERST# | |
| GND | 51 | 52 | CLKREQ# | |
| REFCLKN | 53 | 54 | PEWake# | |
| REFCLKP | 55 | 56 | NC | |
| GND | 57 | 58 | NC | |
| NC | 67 | 68 | SUSCLK | |
| PEDET | 69 | 70 | +3.3V | |
| GND | 71 | 72 | +3.3V | |
| GND | 73 | 74 | +3.3V | |
| GND | 75 |
24.TF Card Interface
The TF card can be used as a system storage or an external storage. When it's used as a system storage, you had better choose the ones with storage space larger than 8GB. When it's used as an external storage, you can choose the ones with storage space up to 128GB. When the TF card is inserted into the TF card slot , the device will be automatically recognized by the system.
The TF card interface pin specification shows below.
| Pin# | Name |
|---|---|
| 1 | SDMMC0_D2 |
| 2 | SDMMC0_D3 |
| 3 | SDMMC0_CMD |
| 4 | VCC3V3_SYS |
| 5 | SDMMC0_CLK |
| 6 | GND |
| 7 | SDMMC0_D0 |
| 8 | SDMMC0_D1 |
| 9 | SDMMC0_DET_L |
| 10 | GND |
| 11 | GND |
| 12 | GND |
| 13 | GND |
25.SPI Nor Flash
26. eMMC
Socket on Board Interface Feature
The high performance eMMC module is the best choice as the system storage for ROCK 3A. The eMMC module with 8GB/16GB/32GB/64GB/128GB is available.
The eMMC Socket pin specification shows below.
| Name | Pin# | Pin# | Name | |
|---|---|---|---|---|
| GND | 1 | 34 | GND | |
| EMMC_D5 | 2 | 33 | EMMC_D6 | |
| GND | 3 | 32 | GND | |
| EMMC_D4 | 4 | 31 | EMMC_D7 | |
| GND | 5 | 30 | GND | |
| EMMC_D0 | 6 | 29 | EMMC_D1 | |
| GND | 7 | 28 | GND | |
| EMMC_CLK | 8 | 27 | EMMC_D2 | |
| GND | 9 | 26 | GND | |
| EMMC_D3 | 10 | 25 | EMMC_CMD | |
| GND | 11 | 24 | GND | |
| EMMC_RSTN | 12 | 23 | VCC3V3_SYS | |
| GND | 13 | 22 | VCC3V3_SYS | |
| GND | 14 | 21 | VCC_1V8 | |
| EMMC_RCLK | 15 | 20 | VCC_1V8 | |
| GND | 16 | 19 | GND | |
| GND | 17 | 18 | GND |