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2 parentsdf9bd73 +31e562d commit029f9d6Copy full SHA for 029f9d6
variants/STM32F4xx/F401R(B-C-D-E)T/variant_NUCLEO_F401RE.cpp
@@ -115,12 +115,13 @@ WEAK void SystemClock_Config(void)
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2);
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/* Initializes the CPU, AHB and APB busses clocks*/
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- RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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- RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
+ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
+ RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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+ RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
- RCC_OscInitStruct.PLL.PLLSource =RCC_PLLSOURCE_HSE;
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+ RCC_OscInitStruct.PLL.PLLSource =RCC_PLLSOURCE_HSI;
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RCC_OscInitStruct.PLL.PLLM =8;
- RCC_OscInitStruct.PLL.PLLN =336;
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+ RCC_OscInitStruct.PLL.PLLN =168;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
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RCC_OscInitStruct.PLL.PLLQ =7;
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