66 lines
2.8 KiB
Markdown
66 lines
2.8 KiB
Markdown
# WR3 Wi-Fi Module
|
|
|
|
*by Tuya Inc.*
|
|
|
|
[Product page](https://developer.tuya.com/en/docs/iot/wr3-module-datasheet?id=K9g3ainzbj9z1)
|
|
|
|
- [Debugging](../../docs/platform/realtek/debugging.md)
|
|
- [Flashing (Tuya manual)](https://developer.tuya.com/en/docs/iot/burn-and-authorize-wr-series-modules?id=Ka789pjc581u8)
|
|
|
|
Parameter | Value
|
|
-------------|----------------------------------
|
|
MCU | RTL8710BN
|
|
Manufacturer | Realtek
|
|
Series | AmebaZ
|
|
Frequency | 125 MHz
|
|
Flash size | 2 MiB
|
|
RAM size | 256 KiB
|
|
Voltage | 3.0V - 3.6V
|
|
I/O | 11x GPIO, 6x PWM, 2x UART, 2x ADC
|
|
Wi-Fi | 802.11 b/g/n
|
|
|
|
## Pinout
|
|
|
|
|
|
|
|
## Arduino Core pin mapping
|
|
|
|
No. | Pin | UART | I²C | SPI | PWM | Other
|
|
----|------------|-----------|----------|----------------------|------|------
|
|
D0 | PA22 | UART0_RTS | I2C0_SCL | SPI0_MISO, SPI1_MISO | PWM5 |
|
|
D1 | PA19 | UART0_CTS | I2C0_SDA | SPI0_CS, SPI1_CS | |
|
|
D2 | PA14 | | | | PWM0 | SWCLK
|
|
D3 | PA15 | | | | PWM1 | SWDIO
|
|
D4 | PA00 | | | | PWM2 |
|
|
D5 | PA29 | UART2_RX | I2C0_SCL | | PWM4 |
|
|
D6 | PA30 | UART2_TX | I2C0_SDA | | PWM4 |
|
|
D7 | PA05 | | | | PWM4 |
|
|
D8 | PA12 | | | | PWM3 |
|
|
D9 | PA18 | UART0_RX | I2C1_SCL | SPI0_SCK, SPI1_SCK | |
|
|
D10 | PA23 | UART0_TX | I2C1_SDA | SPI0_MOSI, SPI1_MOSI | PWM0 |
|
|
A0 | PA19, ADC1 | | | | |
|
|
A1 | ADC2 | | | | |
|
|
|
|
## Flash memory map
|
|
|
|
Flash size: 2 MiB / 2,097,152 B / 0x200000
|
|
|
|
Hex values are in bytes.
|
|
|
|
Name | Start | Length | End
|
|
----------------|----------|-------------------|---------
|
|
Boot XIP | 0x000000 | 16 KiB / 0x4000 | 0x004000
|
|
Boot RAM | 0x004000 | 16 KiB / 0x4000 | 0x008000
|
|
(reserved) | 0x008000 | 4 KiB / 0x1000 | 0x009000
|
|
System Data | 0x009000 | 4 KiB / 0x1000 | 0x00A000
|
|
Calibration | 0x00A000 | 4 KiB / 0x1000 | 0x00B000
|
|
OTA1 Image | 0x00B000 | 788 KiB / 0xC5000 | 0x0D0000
|
|
OTA2 Image | 0x0D0000 | 788 KiB / 0xC5000 | 0x195000
|
|
Key-Value Store | 0x195000 | 24 KiB / 0x6000 | 0x19B000
|
|
User Data | 0x19B000 | 400 KiB / 0x64000 | 0x1FF000
|
|
RDP | 0x1FF000 | 4 KiB / 0x1000 | 0x200000
|
|
|
|
RDP is most likely not used in Tuya firmwares, as the System Data partition contains an incorrect offset 0xFF000 for RDP, which is in the middle of OTA2 image.
|
|
|
|
Additionally, Tuya firmware uses an encrypted KV or file storage, which resides at the end of flash memory. This seems to overlap system RDP area.
|