Looking for some help with getting Clock output on MCO1 (PA8) from LSE here’s a snippet of what I am doing. My logic analyzer gets no pulse from the LSE. My board is a STM32f407

/*
 * Configure  PA8 for MCO1 so we can use it for timer output
 */
static void ConfigurePA8(void){

    RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;

    GPIOA->MODER |= GPIO_MODER_MODER8_1;
    GPIOA->OSPEEDR |= GPIO_OSPEEDER_OSPEEDR8;
    GPIOA->AFR[1]   &= ~GPIO_AFRH_AFRH0;

}

/*
 * Configure LSE and ouput it on a pin so we can measure it with input compare
 * */
static void ConfigureLSE(void){
    ConfigurePA8();


    // Enable the power interface clock
    RCC->APB1ENR |= RCC_APB1ENR_PWREN;

    // Enable access to the backup domain
    PWR->CR |= PWR_CR_DBP;

    // Wait for the backup domain write protection disable bit to take effect
    while ((PWR->CR & PWR_CR_DBP) == 0) {


    }

    // Perform a backup domain reset
    RCC->BDCR |= RCC_BDCR_BDRST;

    // Release the backup domain reset
    RCC->BDCR &= ~RCC_BDCR_BDRST;

    // Enable the LSE oscillator
    RCC->BDCR |= RCC_BDCR_LSEON;

    // Wait until LSE is ready
    while ((RCC->BDCR & RCC_BDCR_LSERDY) == 0) {


    }

    // POINT Clock output GPIO (PA8 in this case)
    RCC->CFGR |= RCC_CFGR_MCO1_0;



}