Вот так не работает? /**
* @brief system clock config program
* @note the system clock is configured as follow:
* system clock (sclk) = hick / 12 * pll_mult
* system clock source = HICK_VALUE
* - hext = HEXT_VALUE
* - sclk = 240000000
* - ahbdiv = 1
* - ahbclk = 240000000
* - apb1div = 2
* - apb1clk = 120000000
* - apb2div = 2
* - apb2clk = 120000000
* - pll_mult = 60
* - pll_range = GT72MHZ (greater than 72 mhz)
* @param none
* @retval none
*/
void wk_system_clock_config(void)
{
/* reset crm */
crm_reset();
/* enable lick */
crm_clock_source_enable(CRM_CLOCK_SOURCE_LICK, TRUE);
/* wait till lick is ready */
while(crm_flag_get(CRM_LICK_STABLE_FLAG) != SET)
{
}
/* enable hext bypass */
crm_hext_bypass(TRUE);
/* enable hext */
crm_clock_source_enable(CRM_CLOCK_SOURCE_HEXT, TRUE);
/* wait till hext is ready */
while(crm_hext_stable_wait() == ERROR)
{
}
/* enable hick */
crm_clock_source_enable(CRM_CLOCK_SOURCE_HICK, TRUE);
/* wait till hick is ready */
while(crm_flag_get(CRM_HICK_STABLE_FLAG) != SET)
{
}
/* config pll clock resource */
crm_pll_config(CRM_PLL_SOURCE_HICK, CRM_PLL_MULT_60, CRM_PLL_OUTPUT_RANGE_GT72MHZ);
/* enable pll */
crm_clock_source_enable(CRM_CLOCK_SOURCE_PLL, TRUE);
/* wait till pll is ready */
while(crm_flag_get(CRM_PLL_STABLE_FLAG) != SET)
{
}
/* config ahbclk */
crm_ahb_div_set(CRM_AHB_DIV_1);
/* config apb2clk, the maximum frequency of APB2 clock is 120 MHz */
crm_apb2_div_set(CRM_APB2_DIV_2);
/* config apb1clk, the maximum frequency of APB1 clock is 120 MHz */
crm_apb1_div_set(CRM_APB1_DIV_2);
/* enable auto step mode */
crm_auto_step_mode_enable(TRUE);
/* select pll as system clock source */
crm_sysclk_switch(CRM_SCLK_PLL);
/* wait till pll is used as system clock source */
while(crm_sysclk_switch_status_get() != CRM_SCLK_PLL)
{
}
/* disable auto step mode */
crm_auto_step_mode_enable(FALSE);
/* update system_core_clock global variable */
system_core_clock_update();
}
POV (19.09.2024 16:35, просмотров: 133) ответил my504 на Внезапно вопрос по AT32F407. Потребовалось его тактировать не
кварцем на встроенном осцилляторе, а прямо меандром от внешнего
генератора. И тут обнаружилось, что предписанная рефмануалом
настройка