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SysClockConf.cpp@1:7b9d53d8e473, 2016-08-02 (annotated)
- Committer:
- hudakz
- Date:
- Tue Aug 02 20:04:31 2016 +0000
- Revision:
- 1:7b9d53d8e473
- Parent:
- 0:0ced269d2669
- Child:
- 3:f0b2ddbf8ba6
USB clock implemented
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
hudakz | 0:0ced269d2669 | 1 | /* |
hudakz | 0:0ced269d2669 | 2 | ****************************************************************************** |
hudakz | 0:0ced269d2669 | 3 | * @file SysClockConf.c |
hudakz | 0:0ced269d2669 | 4 | * @author Zoltan Hudak |
hudakz | 0:0ced269d2669 | 5 | * @version |
hudakz | 0:0ced269d2669 | 6 | * @date 05-July-2016 |
hudakz | 0:0ced269d2669 | 7 | * @brief System Clock configuration for STM32F103C8T6 |
hudakz | 0:0ced269d2669 | 8 | ****************************************************************************** |
hudakz | 0:0ced269d2669 | 9 | * @attention |
hudakz | 0:0ced269d2669 | 10 | * |
hudakz | 0:0ced269d2669 | 11 | * <h2><center>© COPYRIGHT(c) 2016 Zoltan Hudak <hudakz@inbox.com> |
hudakz | 0:0ced269d2669 | 12 | * |
hudakz | 0:0ced269d2669 | 13 | * All rights reserved. |
hudakz | 0:0ced269d2669 | 14 | |
hudakz | 0:0ced269d2669 | 15 | This program is free software: you can redistribute it and/or modify |
hudakz | 0:0ced269d2669 | 16 | it under the terms of the GNU General Public License as published by |
hudakz | 0:0ced269d2669 | 17 | the Free Software Foundation, either version 3 of the License, or |
hudakz | 0:0ced269d2669 | 18 | (at your option) any later version. |
hudakz | 0:0ced269d2669 | 19 | |
hudakz | 0:0ced269d2669 | 20 | This program is distributed in the hope that it will be useful, |
hudakz | 0:0ced269d2669 | 21 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
hudakz | 0:0ced269d2669 | 22 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
hudakz | 0:0ced269d2669 | 23 | GNU General Public License for more details. |
hudakz | 0:0ced269d2669 | 24 | |
hudakz | 0:0ced269d2669 | 25 | You should have received a copy of the GNU General Public License |
hudakz | 0:0ced269d2669 | 26 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
hudakz | 0:0ced269d2669 | 27 | */ |
hudakz | 0:0ced269d2669 | 28 | |
hudakz | 0:0ced269d2669 | 29 | #include "SysClockConf.h" |
hudakz | 0:0ced269d2669 | 30 | #include "mbed.h" |
hudakz | 0:0ced269d2669 | 31 | |
hudakz | 1:7b9d53d8e473 | 32 | bool HSE_SystemClock_Config(void) { |
hudakz | 0:0ced269d2669 | 33 | RCC_OscInitTypeDef RCC_OscInitStruct; |
hudakz | 0:0ced269d2669 | 34 | |
hudakz | 0:0ced269d2669 | 35 | RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; |
hudakz | 0:0ced269d2669 | 36 | RCC_OscInitStruct.HSEState = RCC_HSE_ON; |
hudakz | 0:0ced269d2669 | 37 | RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1; |
hudakz | 0:0ced269d2669 | 38 | RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; |
hudakz | 0:0ced269d2669 | 39 | RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; |
hudakz | 1:7b9d53d8e473 | 40 | RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9; |
hudakz | 0:0ced269d2669 | 41 | |
hudakz | 0:0ced269d2669 | 42 | if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { |
hudakz | 0:0ced269d2669 | 43 | return false; |
hudakz | 0:0ced269d2669 | 44 | } |
hudakz | 0:0ced269d2669 | 45 | |
hudakz | 0:0ced269d2669 | 46 | RCC_ClkInitTypeDef RCC_ClkInitStruct; |
hudakz | 0:0ced269d2669 | 47 | |
hudakz | 0:0ced269d2669 | 48 | RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK |
hudakz | 0:0ced269d2669 | 49 | |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; |
hudakz | 0:0ced269d2669 | 50 | RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; |
hudakz | 0:0ced269d2669 | 51 | RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; |
hudakz | 0:0ced269d2669 | 52 | RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2; |
hudakz | 0:0ced269d2669 | 53 | RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; |
hudakz | 0:0ced269d2669 | 54 | if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) { |
hudakz | 0:0ced269d2669 | 55 | return false; |
hudakz | 0:0ced269d2669 | 56 | } |
hudakz | 0:0ced269d2669 | 57 | |
hudakz | 0:0ced269d2669 | 58 | RCC_PeriphCLKInitTypeDef PeriphClkInit; |
hudakz | 0:0ced269d2669 | 59 | |
hudakz | 0:0ced269d2669 | 60 | PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC|RCC_PERIPHCLK_USB; |
hudakz | 1:7b9d53d8e473 | 61 | PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6; |
hudakz | 1:7b9d53d8e473 | 62 | PeriphClkInit.UsbClockSelection = RCC_USBPLLCLK_DIV1_5; |
hudakz | 0:0ced269d2669 | 63 | if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) { |
hudakz | 0:0ced269d2669 | 64 | return false; |
hudakz | 0:0ced269d2669 | 65 | } |
hudakz | 0:0ced269d2669 | 66 | return true; |
hudakz | 0:0ced269d2669 | 67 | } |
hudakz | 0:0ced269d2669 | 68 | |
hudakz | 1:7b9d53d8e473 | 69 | bool confSysClock(void) { |
hudakz | 0:0ced269d2669 | 70 | HAL_RCC_DeInit(); |
hudakz | 1:7b9d53d8e473 | 71 | if (!HSE_SystemClock_Config()) { |
hudakz | 0:0ced269d2669 | 72 | return false; |
hudakz | 0:0ced269d2669 | 73 | } |
hudakz | 0:0ced269d2669 | 74 | SystemCoreClockUpdate(); |
hudakz | 0:0ced269d2669 | 75 | return true; |
hudakz | 0:0ced269d2669 | 76 | } |
hudakz | 0:0ced269d2669 | 77 | |
hudakz | 0:0ced269d2669 | 78 | |
hudakz | 1:7b9d53d8e473 | 79 | |
hudakz | 1:7b9d53d8e473 | 80 |