mirror of
https://github.com/hathach/tinyusb.git
synced 2025-01-17 05:32:55 +08:00
tested with g0b1 nucleo
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parent
6b44d8fb55
commit
6280cba6e8
@ -58,6 +58,62 @@
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//--------------------------------------------------------------------+
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// RCC Clock
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//--------------------------------------------------------------------+
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#if 1
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static inline void board_clock_init(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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/** Configure the main internal regulator output voltage */
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HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);
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/** Initializes the RCC Oscillators according to the specified parameters
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* in the RCC_OscInitTypeDef structure. */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
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RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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RCC_OscInitStruct.HSIDiv = RCC_HSI_DIV1;
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RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
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RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV1;
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RCC_OscInitStruct.PLL.PLLN = 8;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
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RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
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RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
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HAL_RCC_OscConfig(&RCC_OscInitStruct);
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/** Initializes the CPU, AHB and APB buses clocks */
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
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// Configure CRS clock source
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__HAL_RCC_CRS_CLK_ENABLE();
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RCC_CRSInitTypeDef RCC_CRSInitStruct = {0};
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RCC_CRSInitStruct.Prescaler = RCC_CRS_SYNC_DIV1;
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RCC_CRSInitStruct.Source = RCC_CRS_SYNC_SOURCE_USB;
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RCC_CRSInitStruct.Polarity = RCC_CRS_SYNC_POLARITY_RISING;
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RCC_CRSInitStruct.ReloadValue = __HAL_RCC_CRS_RELOADVALUE_CALCULATE(48000000,1000);
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RCC_CRSInitStruct.ErrorLimitValue = 34;
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RCC_CRSInitStruct.HSI48CalibrationValue = 32;
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HAL_RCCEx_CRSConfig(&RCC_CRSInitStruct);
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/* Select HSI48 as USB clock source */
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RCC_PeriphCLKInitTypeDef usb_clk = {0 };
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usb_clk.PeriphClockSelection = RCC_PERIPHCLK_USB;
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usb_clk.UsbClockSelection = RCC_USBCLKSOURCE_HSI48;
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HAL_RCCEx_PeriphCLKConfig(&usb_clk);
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// Enable HSI48
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RCC_OscInitTypeDef osc_hsi48 = {0};
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osc_hsi48.OscillatorType = RCC_OSCILLATORTYPE_HSI48;
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osc_hsi48.HSI48State = RCC_HSI48_ON;
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HAL_RCC_OscConfig(&osc_hsi48);
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}
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#else
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static inline void board_clock_init(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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@ -93,8 +149,8 @@ static inline void board_clock_init(void)
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0);
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}
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#endif
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#ifdef __cplusplus
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}
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