Cortex M0 - STM32F030R8 Internal Timers and ADC

ARM Community -   An application has the current design parameters for the STM32F030: CLK: 20MHz external xtal on (PF0 & PF1) internal PLL to 40MHz. Complete. MCO: 40MHz CLK/2 = 20MHz out on PA8 (MCO alternate function) to clock external