2025-02-02 10:12 PM
Dear Sir.
I am using a board equipped with STM32U585 , The main clock is 32.768 khz
see included pic.
PA8 is configured to drive LSE 32KHZ using the command
__HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_HIGH);
PA8 is fed to ECG MAX30001.
On some boards MAX30001 reports pll lock problem.
The signal of 32 khz on PA8 is shown at the attached video.
Setting the parameter __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_HIGH); to
0 or RCC_BDCR_LSEDRV_0 or RCC_BDCR_LSEDRV_1 makes no change on the jitter
1. Is this jitter is normal.
Please Advise