what are the values of following frequencies in STM32F4 discovery example projects?

[its]

Posted on November 28, 2012 at 06:55

RCC_MCO1source_PLLCLK=?

RCC_MCO2source_PLLCLK=? RCC_MCO2Source_PLLI2SCLK=? RCC_MCO1Source_LSE=? and m right for RCC_MCO1Source_HSI=16 MHz RCC_MCO2Source_HSE=RCC_MCO1Source_HSE=8MHz RCC_MCO1Source_SYSCLK=168 MHz thanks #mco1 #mco2 #clock

[Tesla DeLorean]

Posted on November 28, 2012 at 13:08

Well the clocks will need to be enabled, ready, and have crystals present

LSE won't work at all unless you have an external crystal PLL will be 168 MHz, the fastest you can physically output is 100 MHz, so PLL/2 is 84 MHz PLLI2S is set to 38.4 MHz As previously suggested review STM32F4-Discovery_FW_V1.1.0\Project\Demonstration\system_stm32f4xx.c, and measure the pins if this is important.