Difference between revisions of "Zero/hardware/zero"

Latest revision as of 03:35, 29 September 2022

English

 Radxa Zero >  Hardware >  Main Board

In this page we will provide detailed explanation on Radxa Zero's hardware.

Power

The Radxa Zero is designed to be a Single Board Computer with low power consumption. It supports the following power input:

USB PD or QC power adapter which support 5V, 1A or higher output

Power adapter with fixed 5V DC voltage

USB port on PC or laptop

5V DC power from the GPIO PIN 2 & 4

The max power consumption of Radxa Zero without USB peripheral is 3.3W.

Processor

The SoC used in Radxa Zero is Amlogic S905Y2. The main system CPU is a quad-core ARM Cortex-A53 CPU with unified L2 cache to improve system performance. In addition, the Cortex-A53 CPU includes the NEON SIMD co-processor to improve software media processing capability. The graphic subsystem consists of two graphic engines and a flexible video/graphic output pipeline. The ARM G31 MP2 GPU supports OpenGL ES 3.2, Vulkan 1.0 and OpenCL 2.0, while the 2.5D graphics processor handles additional scaling, alpha, rotation and color space conversion operations.

Networking

Radxa Zero supports wireless network via the on board WiFi/BT modules.

For Radxa Zero model with 512MB or 1GB memory, it comes with AP6212 module. The wireless module complies with IEEE 802.11 b/g/n standard and it can achieve up to a speed of 72.2Mbps with single stream in 802.11n draft, 54Mbps as specified in IEEE 802.11g, or 11Mbps for IEEE 802.11b to connect to the wireless LAN. It also provides BT V4.0(HS) with integrated Class 1.5 PA and Low Energy (BLE) support.

For Radxa Zero model with 2GB or 4GB memory, it comes with AP6256 module. The wireless module complies with IEEE 802.11 a/b/g/n/ac standard and it can achieve up to a speed of 433.3Mbps with single stream in 802.11ac draft to connect to the wireless LAN. It also supports BT V5.0+EDR with integrated PA for Class 1.5 and Low Energy (BLE).

T variant SKU also has a u.FL connector in place of onboard antenna. This allows the use of external antenna, so when Radxa Zero is placed in an industrial style metal enclosure, the wireless communication is unaffected.

USB

The Radxa Zero has two USB-C connectors. The one closer to the short edge of the board is for USB 2.0 OTG and power, and the other one is for USB 3.0 HOST. When the USB BOOT button is pressed, OTG port can also be used to perform some low level operation, such as sideloading binary blob.

The USB 3.0 Type-C supports 5Gbps speed. A USB-C hub is recommend to connect traditional USB Type-A devices and on some hubs also with integrated Ethernet. None of the USB-C ports implements HDMI/DP Alternate Mode, so there is no native video output.

microSD Interface

The microSD card can be used as a system storage or an external storage. When using as system storage, card with at least 8GB is commanded. When using as external storage, card size up to 128GB are supported.

The microSD interface pinout is specified 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

eMMC (on selected models)

Radxa Zero with 2GB or 4GB of memory also has a high performance eMMC module. Different sizes are available: 8GB/16GB/32GB/64GB/128GB. Our eMMC modules meet eMMC 5.0 standard and support HS400 mode.

HDMI

The Radxa Zero has one micro HDMI connector. For HDMI, the maximum resolution is 4K@60Hz. Any HDMI monitor should work as a display for Zero.

This HDMI port also supports Consumer Electronics Control (CEC) function. Using Zero connected to a CEC compatible TV, you can use the CEC related programs such as cec-client tool to control the TV inputs and other properties.

The HDMI interface pinout is defined 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	PORT_CEC
14	NC
15	DDC_SCL
16	DDC_SDA
17	GND
18	VCC5V0_HDMI
19	HDMI_HPD

General purpose input-output (GPIO) connector

Radxa Zero has a 40-pin color coded expansion header. Please check GPIO for details.

@@ Line 1: / Line 1: @@
 {{Zero_header}}
-{{Languages|zero/hardware}}
+{{Languages|zero/hardware/zero}}
+__NOTOC__
   [[Zero | Radxa Zero]] > [[zero/hardware | Hardware]] > [[zero/hardware/zero | Main Board]]
-[[File:zero_interfaces_description.png | 500px | right]]
+[[File:Radxa_zero_ports.jpg | 600px |right]]
-This hardware user manual provides information about the features and details available on Radxa Zero board.
+In this page we will provide detailed explanation on Radxa Zero's hardware.
 == Power ==
-The Radxa Zero is designed as a low power consumption Single Board Computer, it supports the following power input:
+The Radxa Zero is designed to be a Single Board Computer with low power consumption. It supports the following power input:
-- USB PD or QC power adapter which support 5V, 1A or larger output
+* USB PD or QC power adapter which support 5V, 1A or higher output
-- Power adapter with fixed 5V voltage
+* Power adapter with fixed 5V DC voltage
-- USB port on PC or laptop
+* USB port on PC or laptop
-- 5V Power from the GPIO PIN 2 & 4
+* 5V DC power from the GPIO PIN 2 & 4
 The max power consumption of Radxa Zero without USB peripheral is 3.3W.
@@ Line 25: / Line 28: @@
 == Processor ==
-The SoC used in Radxa Zero is Amlogic S905Y2. The main system CPU is a quad-core ARM Cortex-A53 CPU with unified L2 cache to improve system performance. In addition, the Cortex-A53 CPU includes the NEON SIMD co-processor to improve software media processing capability. The graphic subsystem consists of two graphic engines and a flexible video/graphic output pipeline. The ARM G31 MP2 GPU handles all OpenGL ES 3.2 Vulkan 1.0 and OpenCL 2.0 graphic programs, while the 2.5D graphics processor handles additional scaling, alpha, rotation and color space conversion operations.
+The SoC used in Radxa Zero is Amlogic S905Y2. The main system CPU is a quad-core ARM Cortex-A53 CPU with unified L2 cache to improve system performance. In addition, the Cortex-A53 CPU includes the NEON SIMD co-processor to improve software media processing capability. The graphic subsystem consists of two graphic engines and a flexible video/graphic output pipeline. The ARM G31 MP2 GPU supports OpenGL ES 3.2, Vulkan 1.0 and OpenCL 2.0, while the 2.5D graphics processor handles additional scaling, alpha, rotation and color space conversion operations.
 [[File:S905y2_block_diagram.png | 1000px]]
 == Networking ==
 Radxa Zero supports wireless network via the on board WiFi/BT modules.
-For Radxa Zero 512MB or 1GB ram model, it comes with '''AP6212''' module. The wireless module complies with IEEE 802.11 b/g/n standard and it can achieve up to a speed of 72.2Mbps with single stream in 802.11n draft, 54Mbps as specified in IEEE 802.11g, or 11Mbps for IEEE 802.11b to connect to the wireless LAN. It also provides Bluetooth V4.0(HS) with integrated Class 1.5 PA and Low Energy (BLE) support.
+For Radxa Zero model with 512MB or 1GB memory, it comes with '''AP6212''' module. The wireless module complies with IEEE 802.11 b/g/n standard and it can achieve up to a speed of 72.2Mbps with single stream in 802.11n draft, 54Mbps as specified in IEEE 802.11g, or 11Mbps for IEEE 802.11b to connect to the wireless LAN. It also provides BT V4.0(HS) with integrated Class 1.5 PA and Low Energy (BLE) support.
-For Radxa Zero 2GB or 4GB model, it comes with '''AP6256''' module. The wireless module complies with IEEE 802.11 a/b/g/n/ac standard and it can achieve up to a speed of 433.3Mbps with single stream in 802.11ac draft to connect to the wireless LAN. It also supports Bluetooth V5.0+EDR with integrated PA for Class 1.5 and Low Energy (BLE).
+For Radxa Zero model with 2GB or 4GB memory, it comes with '''AP6256''' module. The wireless module complies with IEEE 802.11 a/b/g/n/ac standard and it can achieve up to a speed of 433.3Mbps with single stream in 802.11ac draft to connect to the wireless LAN. It also supports BT V5.0+EDR with integrated PA for Class 1.5 and Low Energy (BLE).
-Optional on board antenna or external antenna(SKU with T variant) are supported by the Radxa Zero. The u.FL connector is TBD.
+T variant SKU also has a u.FL connector in place of onboard antenna. This allows the use of external antenna, so when Radxa Zero is placed in an industrial style metal enclosure, the wireless communication is unaffected.
 == USB ==
-The Radxa Zero has two USB C connector. One is for USB 2.0 OTG and power. One  is for USB 3.0 HOST. The USB 2.0 OTG is also used for power input. The USB OTG can also be used for USB boot from PC.
+The Radxa Zero has two USB-C connectors. The one closer to the short edge of the board is for USB 2.0 OTG and power, and the other one is for USB 3.0 HOST. When the USB BOOT button is pressed, OTG port can also be used to perform some low level operation, such as sideloading binary blob.
-The USB 3.0 type C supports 5Gbps/s speed and double side plug, a USB C hub is recommend to use with it for USB A, Ethernet expansion. The USB 3.0 type C doesn't support DP alt mode, ie no display.
+The USB 3.0 Type-C supports 5Gbps speed. A USB-C hub is recommend to connect traditional USB Type-A devices and on some hubs also with integrated Ethernet. None of the USB-C ports implements HDMI/DP Alternate Mode, so there is no native video output.
+== microSD Interface ==
+The microSD card can be used as a system storage or an external storage. When using as system storage, card with at least 8GB is commanded. When using as external storage, card size up to 128GB are supported.
-== TF Card Interface ==
+The microSD interface pinout is specified below:
-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.
 {| class="wikitable"
@@ Line 84: / Line 85: @@
 |}
-== eMMC (Not available on 512MB or 1GB model) ==
+== eMMC (on selected models) ==
-The high performance eMMC module is equipped on Radxa Zero 2GB and 4GB model. The eMMC module offers 8GB/16GB/32GB/64GB/128GB options. The eMMC meets eMMC 5.0 and HS400 mode.
+Radxa Zero with 2GB or 4GB of memory also has a high performance eMMC module. Different sizes are available: 8GB/16GB/32GB/64GB/128GB. Our eMMC modules meet eMMC 5.0 standard and support HS400 mode.
 == HDMI ==
-The Radxa Zero is equipped with one micro HDMI connector. For HDMI, the maximum resolution is 4k@60Hz. Any HDMI monitor should work as a display for the zero. HDMI port supports Consumer Electronics Control (CEC) function. Using  zero connected to a TV that supports CEC, you can use the cec application such as cec-client tool to control the inputs and the TV itself.
+The Radxa Zero has one micro HDMI connector. For HDMI, the maximum resolution is 4K@60Hz. Any HDMI monitor should work as a display for Zero.
+This HDMI port also supports Consumer Electronics Control (CEC) function. Using Zero connected to a CEC compatible TV, you can use the CEC related programs such as <code>cec-client</code> tool to control the TV inputs and other properties.
-The HDMI interface pin specification shows below.
+The HDMI interface pinout is defined below:
 {| class="wikitable"
@@ Line 139: / Line 142: @@
 == <span id="gpio">General purpose input-output (GPIO) connector</span> ==
-Radxa Zero has a 40-pin expansion header. Each pin is distinguished by color.
+Radxa Zero has a 40-pin color coded expansion header. Please check [[zero/hardware/gpio | GPIO]] for details.
-===== Check [[zero/hardware/gpio | GPIO]] for details.=====