clock - STM32 Output MCO configuration -

i try configure mco ouput on stm32f103, std periph lib.

here code:

    void outputmco() { gpio_inittypedef gpio_initstructure;  rcc_apb2periphclockcmd(rcc_apb2periph_gpioa, enable);  /* output clock on mco pin ---------------------------------------------*/  gpio_initstructure.gpio_pin = gpio_pin_8; gpio_initstructure.gpio_mode = gpio_mode_af_pp; gpio_initstructure.gpio_speed = gpio_speed_50mhz; gpio_init(gpioa, &gpio_initstructure);  // pick 1 of clocks spew //rcc_mcoconfig(rcc_mcosource_sysclk); // put on mco pin the: system clock selected //rcc_mcoconfig(rcc_mcosource_hse); // put on mco pin the: freq. of external crystal //rcc_mcoconfig(rcc_mcosource_pllclk_div2); // put on mco pin the: system clock selected } 

i have issue here:

// pick 1 of clocks spew //rcc_mcoconfig(rcc_mcosource_sysclk); // put on mco pin the: system clock selected //rcc_mcoconfig(rcc_mcosource_hse); // put on mco pin the: freq. of external crystal //rcc_mcoconfig(rcc_mcosource_pllclk_div2); // put on mco pin the: system clock selected 

none of 3 possibilities working on code. code found on internet. know should find correct parameters ? definition of rcc_mcosource doesn't me thank you

i found solution in file stm32f10x_rcc:

#define rcc_mco_noclock                  ((uint8_t)0x00) #define rcc_mco_sysclk                   ((uint8_t)0x04) #define rcc_mco_hsi                      ((uint8_t)0x05) #define rcc_mco_hse                      ((uint8_t)0x06) #define rcc_mco_pllclk_div2