Are there any routines available to play Audio (PCM, RAW) via a I2S Audio Codec like the Maxim MAX98357 or NXP 1334A with the CH32V307? I tried with the I2S example routines but the output signals are very weird.

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是否有任何例程可用于通过 I2S 音频编解码器（如 Maxim MAX98357 或带 CH32V307 的 NXP 1334A）播放音频（PCM、RAW）？我尝试使用 I2S 示例例程，但输出信号非常奇怪。

Hello, at present, CH32V307 does not have any application routines that IIS uses with MAX98357 or 1334A. In the CH32V307 EVT, there is an IIS transceiver routine. In addition, there is an individual term voice recognition routine that uses IIS. You can refer to it. The following link is the EVT download link. You can download the EVT routine for reference. If there is any problem in the future, you can use the email（ lzs@wch.cn ）contact me.

https://www.wch.cn/downloads/CH32V307EVT_ZIP.html