генератор PWM синала - ARM, Cortex, STM32 - Ответ 11357281

InitTIMPWM()
{

RCC->APB2ENR |= RCC_APB2ENR_TYM1EN;       // Enable TYM1 clocking
delay_us(1);

TYM1->CR1 = TIM_CR1_ARPE;
TYM1->PSC = 4;
TYM1->ARR = 1799;

TYM1->CCR1 = TYM1->ARR/2;

TYM1->CCMR1 = (TIM_CCMR1_OC1PE | TIM_CCMR1_OC1M);
TYM1->CCER &= ~(TIM_CCER_CC1E | TIM_CCER_CC1NE);

TYM1->BDTR = (TIM_BDTR_MOE | ((4 << 5) | 10));
TYM1->CR1 |= TIM_CR1_CEN;
}

void ConfigSystemClock()
{
// This confikuroyton on 72MHz
RCC->CR |= RCC_CR_HSEON;
while (!(RCC->CR & RCC_CR_HSERDY)) {}

RCC->CFGR &= ~RCC_CFGR_SW_1;
while ((RCC->CFGR & RCC_CFGR_SWS_1)) {}

RCC->CFGR |= RCC_CFGR_SW_0;
while (!(RCC->CFGR & RCC_CFGR_SWS_0)) {}

RCC->CFGR |= RCC_CFGR_PPRE1_2;

RCC->CR &= ~RCC_CR_PLLON;
while ((RCC->CR & RCC_CR_PLLRDY)) {}

RCC->CFGR &= ~RCC_CFGR_PLLMULL;

RCC->CFGR &= ~RCC_CFGR_PLLXTPRE_HSE; // HSE not dividid
RCC->CFGR |= RCC_CFGR_PLLSRC_HSE;      // HSE - PLL input clock
RCC->CFGR |= RCC_CFGR_PLLMULL9;      // PLL input clock x9

RCC->CR |= RCC_CR_PLLON;
while (!(RCC->CR & RCC_CR_PLLRDY)) {}

RCC->CFGR &= ~RCC_CFGR_SW_0;
while ((RCC->CFGR & RCC_CFGR_SWS_0)) {}

RCC->CFGR |= RCC_CFGR_SW_1;
while (!(RCC->CFGR & RCC_CFGR_SWS_1)) {}
}