zhouwc1111 发表于 2020-6-8 17:34:45

STM32G431时钟设置:切换到170MHz故障

问题描述:
硬件画的板子,采用STM32G431CBU6,外部16M晶振,PLL倍频到170MHz。
时钟初始化:
1、HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1_BOOST); // HAL库默认的设置,对比手册,clock如果设置在150~170m
之间,需要设置成bootst mode
2、设置时钟源为外部HSE(16MHz)
3、等待晶振起振。可以起振
4、设置PLL
    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; // 16MHz, 开发板是24MHz
    RCC_OscInitStruct.HSEState = RCC_HSE_ON;
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
    RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV4;//RCC_PLLM_DIV6; // 16/4=4MHz
    RCC_OscInitStruct.PLL.PLLN = 85;//18;//85; // 4*85 = 340MHz
    RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; // sys = 170MHz
    RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
    RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
5、等待PLL ready。pll ready
6、切换时钟源。
    if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_8) != HAL_OK)
    {
      Error_Handler();
    }
切换sysclk成PLL 170MHz时钟
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
失败,jlink debug也断开。

不用debug模式,上电直接跑,时钟并没有设置成170mhz

请教下各位前辈和大神。



补充内容 (2020-6-8 17:36):
    MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, RCC_ClkInitStruct->SYSCLKSource);   // 这里是切换时钟源,失败了
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查看完整版本: STM32G431时钟设置:切换到170MHz故障