Posted on May 03, 2018 at 17:31Hi,
There is a bug when generating clock configuration with CubeMx on an STM32F413RHT.
The SystemClock_Config is missing a line before changing the PWR register (clock is not enable) :
void SystemClock_Config(void)
{
LL_FLASH_SetLatency(LL_FLASH_LATENCY_3);
if(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_3)
{
Error_Handler();
}
// THIS LINE IS MISSING IN THE GENERATED CODE
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR); LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE1);
LL_RCC_HSI_SetCalibTrimming(16);
LL_RCC_HSI_Enable();
/* Wait till HSI is ready */
while(LL_RCC_HSI_IsReady() != 1)
{
}
LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSI, LL_RCC_PLLM_DIV_16, 192, LL_RCC_PLLP_DIV_2);
LL_RCC_PLL_Enable();
/* Wait till PLL is ready */
while(LL_RCC_PLL_IsReady() != 1)
{
}
LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_2);
LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
/* Wait till System clock is ready */
while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
{
}
LL_Init1msTick(96000000);
LL_SYSTICK_SetClkSource(LL_SYSTICK_CLKSOURCE_HCLK);
LL_SetSystemCoreClock(96000000);
LL_RCC_ConfigMCO(LL_RCC_MCO1SOURCE_HSI, LL_RCC_MCO1_DIV_2);
LL_RCC_ConfigMCO(LL_RCC_MCO2SOURCE_PLLCLK, LL_RCC_MCO2_DIV_1);
LL_RCC_SetTIMPrescaler(LL_RCC_TIM_PRESCALER_TWICE);
/* SysTick_IRQn interrupt configuration */
NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
}
Versions:
CubeMx: 4.25.0
Firmware: STM32Cube FW_F4 V1.21.0
#lowlayer #cubemx-v4.25.0 #cube
