CI130X Serial Port Protocol V1¶
1. Overview of Serial Command Format¶
Note: For non-single-byte data in this protocol, the low byte comes first, followed by the high byte.
| Name | Length (bytes) | Model description |
|---|---|---|
| Head | 2 | Frame ID header, fixed as 0xA5 0xFA |
| ID | 1 | Product ID, default is 0, can also be customized |
| Cmd | 1 | Instruction code, 0x00-0x7F for voice chip sending operation, 0x80-0xF0 for language chip receiving operation |
| Data | 2 | The content of the command, usually the ID of the command word |
| CheckSum | 1 | Sum of Header + ID + cmd + Data |
| End | 1 | End of frame flag |
2. Voice Module Sending Data Protocol Example¶
Taking our smart housekeeper demo as an example, after the voice module recognizes the command word, the protocol sent to the host computer is as follows:
| Command word | Head | ID | Cmd | Data low | Data high | CheckSum | End |
|---|---|---|---|---|---|---|---|
| 智能管家 | 0xA5 0xFA | 0x00 | 0x81 | 0x01 | 0x00 | 0x… | 0xFB |
| 打开空调 | 0xA5 0xFA | 0x00 | 0x81 | 0x02 | 0x00 | 0x… | 0xFB |
| 关闭空调 | 0xA5 0xFA | 0x00 | 0x81 | 0x03 | 0x00 | 0x… | 0xFB |
| ...... | 0xA5 0xFA | 0x00 | 0x81 | … | 0x00 | 0x… | 0xFB |
| 结束语音 | 0xA5 0xFA | 0x00 | 0x81 | 0x55 | 0x00 | 0x… | 0xFB |
| 退出识别 | 0xA5 0xFA | 0x00 | 0x82 | 0x01 | 0x00 | 0x… | 0xFB |
3. Voice Module Receive Data Protocol Example¶
The voice module receives the protocol sent by the upper computer as follows:
| Function | Head | Reserved | Cmd | Data Low | Reserved | CheckSum | End |
|---|---|---|---|---|---|---|---|
| Turn on echo | 0xA5 0xFA | 0x00 | 0x01 | 0x01 | 0x00 | 0x… | 0xFB |
| Turn off echo | 0xA5 0xFA | 0x00 | 0x01 | 0x00 | 0x00 | 0x… | 0xFB |
| Open verification | 0xA5 0xFA | 0x00 | 0x02 | 0x01 | 0x00 | 0x… | 0xFB |
| Close verification | 0xA5 0xFA | 0x00 | 0x02 | 0x00 | 0x00 | 0x… | 0xFB |
| Sound with broadcast ID 1 | 0xA5 0xFA | 0x00 | 0x03 | 0x01 | 0x00 | 0x… | 0xFB |
| Broadcast the voice with ID XX | 0xA5 0xFA | 0x00 | 0x3 | 0xxx | 0x00 | 0x… | 0xFB |
| Restart voice module | 0xA5 0xFA | 0x00 | 0x04 | 0x01 | 0x00 | 0x… | 0xFB |
| Exit wake-up state | 0xA5 0xFA | 0x00 | 0x05 | 0x01 | 0x00 | 0x… | 0xFB |
| Turn on playback | 0xA5 0xFA | 0x00 | 0x06 | 0x01 | 0x00 | 0x… | 0xFB |
| Turn off playback | 0xA5 0xFA | 0x00 | 0x06 | 0x00 | 0x00 | 0x… | 0xFB |
| Set the volume to 1 | 0xA5 0xFA | 0x00 | 0x07 | 0x01 | 0x00 | 0x… | 0xFB |
| Set the volume to 7 | 0xA5 0xFA | 0x00 | 0x07 | 0x07 | 0x00 | 0x… | 0xFB |
| Get version system | 0xA5 0xFA | 0x00 | 0x08 | 0x01 | 0x00 | 0x… | 0xFB |
Note:
-
Echo means that the voice module sends the received instruction as it is;
-
Verify that the cumulative sum and sound playback are turned on by default;
-
The maximum volume is 7 levels.