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Diffstat (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/main.c')
-rw-r--r-- | tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/main.c | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/main.c deleted file mode 100644 index af8bbf8..0000000 --- a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/DMABurst/main.c +++ /dev/null @@ -1,173 +0,0 @@ -/** - ****************************************************************************** - * @file TIM/DMABurst/main.c - * @author MCD Application Team - * @version V3.5.0 - * @date 08-April-2011 - * @brief Main program body - ****************************************************************************** - * @attention - * - * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS - * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE - * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY - * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING - * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE - * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. - * - * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f10x.h" - -/** @addtogroup STM32F10x_StdPeriph_Examples - * @{ - */ - -/** @addtogroup TIM_DMABurst - * @{ - */ - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -#define TIM1_DMAR_ADDRESS ((uint32_t)0x40012C4C) /* TIM ARR (Auto Reload Register) address */ - -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -GPIO_InitTypeDef GPIO_InitStructure; -DMA_InitTypeDef DMA_InitStructure; -TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; -TIM_OCInitTypeDef TIM_OCInitStructure; -uint16_t SRC_Buffer[6] = {0x0FFF, 0x0000, 0x0555}; - -/* Private function prototypes -----------------------------------------------*/ -/* Private functions ---------------------------------------------------------*/ - -/** - * @brief Main program - * @param None - * @retval None - */ -int main(void) -{ - /*!< At this stage the microcontroller clock setting is already configured, - this is done through SystemInit() function which is called from startup - file (startup_stm32f10x_xx.s) before to branch to application main. - To reconfigure the default setting of SystemInit() function, refer to - system_stm32f10x.c file - */ - - /* TIM1 and GPIOA clock enable */ - RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA, ENABLE); - - /* DMA clock enable */ - RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); - - /* GPIOA Configuration: Channel 1 as alternate function push-pull */ - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; - GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; - GPIO_Init(GPIOA, &GPIO_InitStructure); - - /* TIM1 DeInit */ - TIM_DeInit(TIM1); - - /* DMA1 Channel5 Config */ - DMA_DeInit(DMA1_Channel5); - - DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)TIM1_DMAR_ADDRESS; - DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)SRC_Buffer; - DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST; - DMA_InitStructure.DMA_BufferSize = 3; - DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; - DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; - DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; - DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; - DMA_InitStructure.DMA_Mode = DMA_Mode_Normal; - DMA_InitStructure.DMA_Priority = DMA_Priority_High; - DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; - DMA_Init(DMA1_Channel5, &DMA_InitStructure); - - /* Time base configuration */ - /* ----------------------------------------------------------------------- - TIM1 Configuration: generate 1 PWM signal using the DMA burst mode: - The TIM1CLK frequency is set to SystemCoreClock (Hz), to get TIM1 counter - clock at 24 MHz the Prescaler is computed as following: - - Prescaler = (TIM1CLK / TIM1 counter clock) - 1 - SystemCoreClock is set to 72 MHz for Low-density, Medium-density, High-density - and Connectivity line devices and to 24 MHz for Low-Density Value line and - Medium-Density Value line devices - - The TIM1 period is 5.8 KHz: TIM1 Frequency = TIM1 counter clock/(ARR + 1) - = 24 MHz / 4096 = 5.8KHz KHz - TIM1 Channel1 duty cycle = (TIM1_CCR1/ TIM1_ARR)* 100 = 33.33% - ----------------------------------------------------------------------- */ - TIM_TimeBaseStructure.TIM_Period = 0xFFFF; - TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t) (SystemCoreClock / 24000000) - 1; - TIM_TimeBaseStructure.TIM_ClockDivision = 0x0; - TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; - TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); - - /* TIM Configuration in PWM Mode */ - TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; - TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; - TIM_OCInitStructure.TIM_Pulse = 0xFFF; - TIM_OC1Init(TIM1, &TIM_OCInitStructure); - - /* TIM1 DMAR Base register and DMA Burst Length Config */ - TIM_DMAConfig(TIM1, TIM_DMABase_ARR, TIM_DMABurstLength_3Transfers); - - /* TIM1 DMA Update enable */ - TIM_DMACmd(TIM1, TIM_DMA_Update, ENABLE); - - /* TIM1 enable */ - TIM_Cmd(TIM1, ENABLE); - - /* TIM1 PWM Outputs Enable */ - TIM_CtrlPWMOutputs(TIM1, ENABLE); - - /* DMA1 Channel5 enable */ - DMA_Cmd(DMA1_Channel5, ENABLE); - - /* Wait until DMA1 Channel5 end of Transfer */ - while (!DMA_GetFlagStatus(DMA1_FLAG_TC5)) - { - } - - /* Infinite loop */ - while(1) - { - } -} - - -#ifdef USE_FULL_ASSERT - -/** - * @brief Reports the name of the source file and the source line number - * where the assert_param error has occurred. - * @param file: pointer to the source file name - * @param line: assert_param error line source number - * @retval None - */ -void assert_failed(uint8_t* file, uint32_t line) -{ - /* User can add his own implementation to report the file name and line number, - ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ - - while (1) - {} -} -#endif - -/** - * @} - */ - -/** - * @} - */ - -/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |