__PWR_CLK_ENABLE();
HAL_PWR_EnableBkUpAccess();
HAL_PWR_EnableBkUpReg();
__HAL_RCC_BKPSRAM_CLK_ENABLE();
编译出错
STM32H743I-EVAL_USBD-FS\STM32H743I-EVAL_USBD-FS.axf: Error: L6218E: Undefined symbol __HAL_RCC_BKPSRAM_CLK_ENABLE (referred from main.o).
STM32H743I-EVAL_USBD-FS\STM32H743I-EVAL_USBD-FS.axf: Error: L6218E: Undefined symbol __HAL_RCC_PWR_CLK_ENABLE (referred from main.o). |