DA7212 - Is there a need of continuous MCLK to enable PLL in SRM mode?

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星期五,2018-12-28 22

#1

akshay_pandit

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DA7212 - Is there a need of continuous MCLK to enable PLL in SRM mode?

DA7212 has been used as slave I2S mode. For PLL to operate in SRM mode, does it requires continuous MCLK? In our case MCLK is not continuous, MCLK is generated when ever I2S transmit/receive occurs. So, I wanted to know do we require continuous MCLK?

Device:

DA14580

Thu, 2019-01-03 08:51

#2

bmcadam

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The clock is not required to

The clock is not required to be continuous though be present when transmitting / receiving data. Time is required to ensure that PLL_LOCK has been achieved, which can be verified through PLL_STATUS register.

Thu, 2019-01-03 09:03

(Reply to #2) #3

akshay_pandit

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Thanks for your reply.

Thanks for your reply.
I've tried to set PLL in SRM mode and I'm getting 05 (SRM not locked to reference signal) through PLL_STATUS. Is there any reference code to enable PLL in SRM mode?