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Hello,
I want to use I2S MCLK as MCLK of external device. Is it possible? If so, how do I configure it?
I use WICED 6.2 and I am using CYW43907.
Thanks and Regards,
David
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Hi:
Do you mean to use MCLK only ? or use I2S interface to connect with a codec ?
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Hi,
The I2S MCLK interface is connected to the codec MCLK. The codec was not working properly,
so I supplied the MCLK separately from the outside and it worked normally.
Can I always activate I2S MCLK? Or should I use PWM or give MCLK from the outside?
Thanks and Regards,
David
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Hello:
Do you have the MCLK description for the codec ? I am a little confused about I2S_MCLK and chip MCLK . What is the value of the external MCLK you provide ?
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Hi,
At first, I2S_MCLK of MCU and MCLK of Codec chip were connected. Codec did not work properly in this situation.
I disconnected this and supplied 24.576Mhz CLK from the external board to the codec's MCLK.
Then, the codec works normally.
I want to supply MCLK (24.576Mhz) through I2S_MCLK of MCU or other PIN of MCU.
Thanks and Regards,
David
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Hi:
I got your point, 24.576Mhz is a typical mclk value. And which app are you using to enable the I2S interface function ? assume you already found where to config 43907 i2s interface and start it.
Actually, I am still struggling to find a simple way to enable i2s interface function to have a test in my evb .