rtl872xda_evb
Overview
The Realtek RTL8721Dx Series is a Combo SoC that supports dual-band Wi-Fi 4 (2.4GHz + 5GHz) and BLE 5.0 specifications. With excellent ultra-low power consumption, enhanced encryption strategy (PSA Level 2), and abundant peripheral resources, it is widely used in smart home appliance, line controller, smart door lock, battery camera, smart remote controller, Wi-Fi Speaker, Wi-Fi Full MAC NIC, BLE gateway, and smart POS, etc. For more information, check RTL872XDA-EVB.
The features include the following:
Dual cores: Real-M300 and Real-M200
512KB on-chip SRAM
802.11 a/b/g/n 1 x 1, 2.4GHz + 5GHz
Supports BLE 5.0
Peripheral Interface:
Multi-communication interfaces: SPI x 2, UART x 4, I2C x 2
Hardware Key-Scan interface supports up to 8*8 (64) keys
Hardware IR transceiver can easily adapt to various IR protocols
Supports Real-Time Clock timer together with 10 basic timers
Supports 8 channels of PWM timer and 1 capture timer
Supports 7 channels of general 12-bit ADC and 1 channel of VBAT
Supports 4 channels of touch pad
Supports 8 independent channels of GDMA
Supports USB 2.0 full-speed device mode
Supports SDIO device with 1-bit and 4-bit mode
Embeds a serial LEDC to control the external LED lamps
Integrated Pixel Processing Engine (PPE) to process pixel data faster
Integrated OSPI display interface supports screens with OSPI/QSPI/SPI interfaces
Integrated audio codec supports 2 channels DMIC interface
I2S x 2: up to 384kHz sampling rate
Cryptographic hardware acceleration (TRNG, ECC, SHA-2, AES)
For more information, Get application note and datasheet at RTL8721Dx Series depending on chip you use.
Supported Features
The rtl872xda_evb board supports the hardware features listed below.
- on-chip / on-board
- Feature integrated in the SoC / present on the board.
- 2 / 2
-
Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files. -
vnd,foo -
Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.
rtl872xda_evb/rtl8721dx target
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M55 CPU1 |
|
Clock control |
on-chip |
Generic fixed-rate clock provider1 |
|
GPIO & Headers |
on-chip |
Realtek Ameba GPIO controller2 |
|
Interrupt controller |
on-chip |
ARMv8.1-M NVIC (Nested Vectored Interrupt Controller)1 |
|
MTD |
on-chip |
Flash node1 |
|
Pin control |
on-chip |
Realtek Ameba pinctrl is a singleton node responsible for controlling pin function selection and pin properties1 |
|
Serial controller |
on-chip |
Ameba LOGUART1 |
|
SRAM |
on-chip |
Generic on-chip SRAM1 |
|
Timer |
on-chip |
ARMv8.1-M System Tick1 |
Prerequisites
Realtek HAL requires binary blobs in order work. Run the command below to retrieve those files.
west blobs fetch hal_realtek
Note
It is recommended running the command above after west update.
Building
Here is an example for building the Hello World application.
# From the root of the zephyr repository
west build -b rtl872xda_evb samples/hello_world
west build -t buil
Flashing
When the build finishes, downloading images into flash by AmebaImageTool:
See the ApplicationNote chapter Image Tool from documentation links for more details.
Environment Requirements: EX. WinXP, Win 7 or later, Microsoft .NET Framework 4.0.
Connect chip and PC with USB wire.
Choose the Device profiles according to the chip you use.
Select the corresponding serial port and transmission baud rate. The default baud rate is 1500000.
Select the images to be programmed and set the start address and end address according to the flash layout, refer to [ameba_flashcfg.c/Flash_layout].
Click the Download button and start. The progress bar will show the download progress of each image and the log window will show the operation status.
Note
For an empty chip, the bootloader and app image shall be downloaded.
Debugging
Using SWD through PA30(SWD_CLK) and PA31(SWD_DAT).