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HSE ON cleared after HSE RDY set to HIGH?

Aditya Mall
Associate II
Posted on May 01, 2018 at 19:05

in RCC_CR register does the HSE ON bit gets cleared or not after HSE RDY bit is set to high by MCU? 

For ex.

Set by user:-

  17th Bit             16th Bit  

HSE RDY [ 0 ],  HSE ON [ 1 ]         //set by user

HSE RDY [ 1 ],    HSE ON [ 1 ]      // HSE RDY set to 1 by MCU after HSE ON is set to 1 by user.

is the above correct?

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#nucleo64 ##stm32f #stm32f401re #rcc_cr
1 ACCEPTED SOLUTION

Accepted Solutions
Posted on May 01, 2018 at 20:10

Yes, what you wrote is correct - RCC_CR.HSEON stays set to 1.

JW

View solution in original post

2 REPLIES 2
Posted on May 01, 2018 at 20:10

Yes, what you wrote is correct - RCC_CR.HSEON stays set to 1.

JW

Posted on May 16, 2018 at 22:44

Thanks for the reply