87 lines
2.7 KiB
Markdown
87 lines
2.7 KiB
Markdown
# CB3L Wi-Fi Module
|
|
|
|
*by Tuya Inc.*
|
|
|
|
[Product page](https://developer.tuya.com/en/docs/iot/cb3l-module-datasheet?id=Kai51ngmrh3qm)
|
|
|
|
- [General info](../../docs/platform/beken-72xx/README.md)
|
|
- [Flashing guide](../../docs/platform/beken-72xx/flashing.md)
|
|
|
|
Parameter | Value
|
|
-------------|------------------------------------------
|
|
Board code | `cb3l`
|
|
MCU | BK7231N
|
|
Manufacturer | Beken
|
|
Series | BK72XX
|
|
Frequency | 120 MHz
|
|
Flash size | 2 MiB
|
|
RAM size | 256 KiB
|
|
Voltage | 3.0V - 3.6V
|
|
I/O | 12x GPIO, 6x PWM, 2x UART, 1x ADC
|
|
Wi-Fi | 802.11 b/g/n
|
|
Bluetooth | BLE v5.1
|
|
FCC ID | [2ANDL-CB3L](https://fccid.io/2ANDL-CB3L)
|
|
|
|
## Usage
|
|
|
|
**Board code:** `cb3l`
|
|
|
|
In `platformio.ini`:
|
|
|
|
```ini
|
|
[env:cb3l]
|
|
platform = libretuya
|
|
board = cb3l
|
|
framework = arduino
|
|
```
|
|
|
|
In ESPHome YAML:
|
|
|
|
```yaml
|
|
libretuya:
|
|
board: cb3l
|
|
framework:
|
|
version: dev
|
|
```
|
|
|
|
## Pinout
|
|
|
|
|
|
|
|
## Arduino Core pin mapping
|
|
|
|
No. | Pin | UART | I²C | SPI | PWM | Other
|
|
----|-----------|----------|----------|-----|------|------
|
|
D0 | P23 | | | | | TDO
|
|
D1 | P14 | | | SCK | |
|
|
D2 | P26 | | | | PWM5 |
|
|
D3 | P24 | | | | PWM4 |
|
|
D4 | P6 | | | | PWM0 |
|
|
D5 | P9 | | | | PWM3 |
|
|
D6 | P0 | UART2_TX | I2C2_SCL | | |
|
|
D7 | P21 | | I2C1_SDA | | | TMS
|
|
D8 | P8 | | | | PWM2 |
|
|
D9 | P7 | | | | PWM1 |
|
|
D10 | P10 | UART1_RX | | | |
|
|
D11 | P11 | UART1_TX | | | |
|
|
A0 | P23, ADC3 | | | | |
|
|
|
|
## Flash memory map
|
|
|
|
Flash size: 2 MiB / 2,097,152 B / 0x200000
|
|
|
|
Hex values are in bytes.
|
|
|
|
Name | Start | Length | End
|
|
----------------|----------|--------------------|---------
|
|
Bootloader | 0x000000 | 68 KiB / 0x11000 | 0x011000
|
|
App Image | 0x011000 | 1.1 MiB / 0x119000 | 0x12A000
|
|
OTA Image | 0x12A000 | 664 KiB / 0xA6000 | 0x1D0000
|
|
Calibration | 0x1D0000 | 4 KiB / 0x1000 | 0x1D1000
|
|
Network Data | 0x1D1000 | 4 KiB / 0x1000 | 0x1D2000
|
|
TLV Store | 0x1D2000 | 4 KiB / 0x1000 | 0x1D3000
|
|
Key-Value Store | 0x1D3000 | 32 KiB / 0x8000 | 0x1DB000
|
|
User Data | 0x1DB000 | 148 KiB / 0x25000 | 0x200000
|
|
|
|
Bootloader and app partitions contain CRC16 sums every 32 bytes. That results in the actual flash offsets/sizes not aligned to sector boundaries. To simplify calculations, the values shown in the table (extracted from bootloader's partition table) were aligned to 4096 bytes.
|