i2s_write 响应时间太长

hhd2018
Posts: 7
Joined: Fri Nov 30, 2018 6:20 am

i2s_write 响应时间太长

Postby hhd2018 » Tue Dec 18, 2018 5:23 pm

我调用 i2s_write 后,喇叭要等接近200毫秒才有反应,这个时间正常吗?可以缩短吗?
各位大神帮下忙...

hhd2018
Posts: 7
Joined: Fri Nov 30, 2018 6:20 am

Re: i2s_write 响应时间太长

Postby hhd2018 » Wed Dec 19, 2018 1:55 am

俺找到办法了,将DMA buffer减小,就可以减小等待时间。

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