STM32 RCC电源参数设置

同事设计的板子烧录程序后程序跑不起来，一直会卡在void SystemClock_Config(void)函数下面代码出

while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}

STM32可能会有多种供电方式，CubeMx生成的代码默认参数可能无法启动STM32，要根据硬件工程是的设计选择合适的参数

#define PWR_LDO_SUPPLY                      PWR_CR3_LDOEN                                                               /*!< Core domains are supplied from the LDO                                                                     */
#if defined (SMPS)
#define PWR_DIRECT_SMPS_SUPPLY              PWR_CR3_SMPSEN                                                              /*!< Core domains are supplied from the SMPS only                                                               */
#define PWR_SMPS_1V8_SUPPLIES_LDO           (PWR_CR3_SMPSLEVEL_0 | PWR_CR3_SMPSEN    | PWR_CR3_LDOEN)                   /*!< The SMPS 1.8V output supplies the LDO which supplies the Core domains                                       */
#define PWR_SMPS_2V5_SUPPLIES_LDO           (PWR_CR3_SMPSLEVEL_1 | PWR_CR3_SMPSEN    | PWR_CR3_LDOEN)                   /*!< The SMPS 2.5V output supplies the LDO which supplies the Core domains                                       */
#define PWR_SMPS_1V8_SUPPLIES_EXT_AND_LDO   (PWR_CR3_SMPSLEVEL_0 | PWR_CR3_SMPSEXTHP | PWR_CR3_SMPSEN | PWR_CR3_LDOEN)  /*!< The SMPS 1.8V output supplies an external circuits and the LDO. The Core domains are supplied from the LDO */
#define PWR_SMPS_2V5_SUPPLIES_EXT_AND_LDO   (PWR_CR3_SMPSLEVEL_1 | PWR_CR3_SMPSEXTHP | PWR_CR3_SMPSEN | PWR_CR3_LDOEN)  /*!< The SMPS 2.5V output supplies an external circuits and the LDO. The Core domains are supplied from the LDO */
#define PWR_SMPS_1V8_SUPPLIES_EXT           (PWR_CR3_SMPSLEVEL_0 | PWR_CR3_SMPSEXTHP | PWR_CR3_SMPSEN | PWR_CR3_BYPASS) /*!< The SMPS 1.8V output supplies an external source which supplies the Core domains                            */
#define PWR_SMPS_2V5_SUPPLIES_EXT           (PWR_CR3_SMPSLEVEL_1 | PWR_CR3_SMPSEXTHP | PWR_CR3_SMPSEN | PWR_CR3_BYPASS) /*!< The SMPS 2.5V output supplies an external source which supplies the Core domains                            */
#endif /* defined (SMPS) */

//void SystemClock_Config(void)函数，以上为可选相关参数
HAL_PWREx_ConfigSupply(PWR_SMPS_1V8_SUPPLIES_LDO);

标签：CR3,PWR,LDO,STM32,SMPS,supplies,define,参数设置,RCC
来源： https://www.cnblogs.com/boring-luobo/p/15922367.html