Protocol Frame Description
AUDIO_PA_LP Set Player power amplifier (PA) Low power mode (for speaker) - Only in PLAY mode.
This command is used to set in a very short time the PA in a low power mode (only in play mode). A Play/Stop transition will reset the PA low power mode.
Table
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Frame Start | Channel | Command | Data Length | Data | CheckSum | |
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| Byte 0: |
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7Eh | 92h | 01h | - 00h exit PA low power mode | Yes | ||
FFh | ||||||
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| - 01h enter PA low power mode |
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Player response is SYSTEM_ACK or SYSTEM_NACK.
CUSTOM_SET_UART_BAUDR Custom change UART baudrate.
ATE Command
Default UART baudrate is 115200bps (physical baudrate 111111bps).
Table
Frame |
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Start | Channel | Command | Data Length | Data | CheckSum | |
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| If not used, |
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| Byte 0: SCON_REG |
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7Eh | 93h | 03h | Byte 1: SMOD_SPD_REG | Yes | ||
FFh | ||||||
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| Byte 2: BRG0_REG |
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Table
Baudrate | SCON_REG Value | SMOD_SPD Value | BRG0_VALUE |
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38400 bps | 40h | 03h | F3h |
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11500 bps | 40h | 02h | F7h |
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Player response is:
SYSTEM_ACK* frame at previous baudrate,
followed by:
SYSTEM_ACK* frame at new baudrate.
It is advised to send the SYSTEM_GET_STATUS after the baudrate change to confirm the change.
CUSTOM_GET_SYS_VERSIO Get Player AT83SND2CMP3 version “V2.0.0”.
N Command
AT83SND2CMP3 User Guide |