با سلام . کد زیر رو برای میکرو stm32f103vet نوشتم . ولی فقط یک بار محتوای TxBuffer1 رو توسط DMA میفرسته . چیکار میشه کرد تا دوبار و بیشتر بشه از طریق DMA این رشته فرستاده شود.
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/**
******************************************************************************
* @file ScanContinuous/src/main.c
* @author MCD Application Team
* @version V1.0.0
* @date 03/09/2010
* @brief Main program body
******************************************************************************
* @copy
*
* 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>&copy; COPYRIGHT 2010 STMicroelectronics</center></h2>
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "usart.h"
#include "EnginePWM.h"
#define HSE_VALUE ((uint32_t)7200000) /*!< Value of the External oscillator in Hz */
//#define STM32F10X_HD /*!< STM32F10X_HD: STM32 High density devices */
#define CarrierFreq 10000 // Period= 100us
#define DeadTime 180 //3us deadtime
#define DeadTime_uS 3 //3us deadtime
__IO int16_t LDiff=0, Lon=0;
uint16_t DT_Val=0,CarrierPeriod_uS=0;
uint16_t TogglePoints[2]={0};
uint16_t TimerPeriod = 0;
char FlgUsartTx=false;
State_TypeDef PWM_MODE;
__IO uint16_t Loff;
char Flg_NewCalcForNewPeriod;
/* Private typedef -----------------------------------------------------------*/
typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
/* Private define ------------------------------------------------------------*/
#define TxBufferSize1 (countof(TxBuffer1) - 1)
#define TxBufferSize2 (countof(TxBuffer2) - 1)
/* Private macro -------------------------------------------------------------*/
#define countof(a) (sizeof(a) / sizeof(*(a)))
/* Private variables ---------------------------------------------------------*/
USART_InitTypeDef USART_InitStructure;
uint8_t TxBuffer1[] = "My name Is Hamed.";
uint8_t TxBuffer2[] = "USART DMA Interrupt: USARTz -> USARTy using DMA Tx and Rx Interrupt";
uint8_t RxBuffer1[TxBufferSize2];
uint8_t RxBuffer2[TxBufferSize1];
uint8_t NbrOfDataToRead = TxBufferSize1;
uint32_t index1 = 0;
volatile TestStatus TransferStatus1 = FAILED, TransferStatus2 = FAILED;
#define USE_FULL_ASSERT
void Init_NVIC (void);
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
TIM_BDTRInitTypeDef TIM_BDTRInitStructure;
uint16_t Channel1Pulse = 0, Channel2Pulse = 0, Channel3Pulse = 0, Channel4Pulse = 0;
/** @addtogroup ScanContinuous
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Comment or incomment this define to use or not the DMA */
#define ADC1_DR_Address ((uint32_t)0x4001244C)
#define BufferLenght 6
char adc_enable=true;
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
ADC_InitTypeDef ADC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
__IO uint16_t ADC1ConvertedValue[BufferLenght];
ErrorStatus HSEStartUpStatus;
char str[50];
/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void GPIO_Configuration(void);
void DMA_USART_Configuration(void);
uint16_t tmpccmrx = 0;
#define CCMR_OC13M_Mask ((uint16_t)0xFF8F)
#define CCMR_CC13S_Mask ((uint16_t)0xFFFC)
uint16_t capture = 0;
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* System clocks configuration ---------------------------------------------*/
RCC_Configuration();
Init_NVIC();
/* GPIO configuration ------------------------------------------------------*/
GPIO_Configuration();
PWM_MODE=PWM_TOGGLE;
Flg_NewCalcForNewPeriod=true;
Loff=0;
Init_Usart (); // initialize serial port
Usart_Configuration(115200);
DMA_USART_Configuration();
while (1)
{
//sprintf(str,"ADC1=%d , ADC2=%d , ADC3=%d , ADC4=%d , ADC5=%d",Loff,ADC1ConvertedValue[1],ADC1ConvertedValue[2],ADC1ConvertedValue[3],ADC1ConvertedValue[4]);
//printf(str);
}
}
void DMA_USART_Configuration(void)
{
DMA_InitTypeDef DMA_InitStructure;
/* USARTy_Tx_DMA_Channel (triggered by USARTy Tx event) Config */
DMA_DeInit(USARTy_Tx_DMA_Channel);
DMA_InitStructure.DMA_PeripheralBaseAddr = USARTy_DR_Base;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)TxBuffer1;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
DMA_InitStructure.DMA_BufferSize = TxBufferSize1;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(USARTy_Tx_DMA_Channel, &DMA_InitStructure);
/* Enable USARTy DMA TX request */
USART_DMACmd(USART1, USART_DMAReq_Tx, ENABLE);
/* Enable the USART Rx DMA request */
/* Enable DMA Stream Half Transfer and Transfer Complete interrupt */
DMA_ITConfig(DMA1_Channel4, DMA_IT_TC, ENABLE);
// DMA_ITConfig(DMA1_Channel4, DMA_IT_HT, ENABLE);
/* Enable USARTy DMA TX Channel */
DMA_Cmd(USARTy_Tx_DMA_Channel, ENABLE);
}
/**
* @brief Configures the different system clocks.
* @param None
* @retval None
*/
void RCC_Configuration(void)
{
/* RCC system reset(for debug purpose) */
RCC_DeInit();
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
/* Enable Prefetch Buffer */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
/* Flash 2 wait state */
FLASH_SetLatency(FLASH_Latency_2);
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK/2 */
RCC_PCLK1Config(RCC_HCLK_Div1);
/* ADCCLK = PCLK2/2 */
RCC_ADCCLKConfig(RCC_PCLK2_Div2);
//#ifndef STM32F10X_CL
/* PLLCLK = 8MHz * 7 = 56 MHz */
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{
}
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while(RCC_GetSYSCLKSource() != 0x08)
{
}
}
/* Enable GPIO_LED clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOE| RCC_APB2Periph_AFIO, ENABLE);
/* Enable peripheral clocks --------------------------------------------------*/
/* Enable DMA1 clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
/* Enable ADC1 and GPIOC clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOC, ENABLE);
}
/**
* @brief Configures the different GPIO ports.
* @param None
* @retval None
*/
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure PC.0, PC.1, PC.2, PC.3 as analog input -------------------------*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 |GPIO_Pin_1 |GPIO_Pin_2 |GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* Configure PA.0, PA.1 as analog input -------------------------*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 ;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/*Configure GPIO pin : user key */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/*Configure GPIO pin : as led */
GPIO_InitStructure.GPIO_Pin =GPIO_Pin_6|GPIO_Pin_12| GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_10MHz;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/*Configure GPIO pin : as led */
GPIO_InitStructure.GPIO_Pin =GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOE, &GPIO_InitStructure);
}
void Led_Lit(char x)
{
// (x =x^1);
// char key_state;
if (x)
//key_state= HAL_GPIO_ReadPin(GPIOC,GPIO_PIN_13);
GPIO_SetBits(GPIOD,GPIO_Pin_12);
else
GPIO_ResetBits(GPIOD,GPIO_Pin_12);
}
#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) */
/* Infinite loop */
while (1)
{
}
}
#endif
void Init_NVIC (void)
{
NVIC_InitTypeDef NVIC_InitStructure; // define a structure variable vector NVIC
NVIC_PriorityGroupConfig (NVIC_PriorityGroup_2); // set the interrupt group 2
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; // The serial port 1 interrupt source
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2; // set the pre-emption priority 2
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; // Set deputy priority of 0
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; // Enables serial port 1 interrupt
NVIC_Init (& NVIC_InitStructure); // initialize interrupt register according to the parameters
// /* Configure and enable ADC interrupt */
// NVIC_InitStructure.NVIC_IRQChannel = ADC1_2_IRQn;
// NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
// NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
// NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
// NVIC_Init(&NVIC_InitStructure);
/* Enable the TIM3 global Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = TIM1_CC_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* Enable the UART3 TX DMA Interrupt */
NVIC_InitStructure.NVIC_IRQChannel =DMA1_Channel4_IRQn;// DMA1_Stream1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void DMA1_Channel4_IRQHandler(void)
{
/* Test on DMA Stream Transfer Complete interrupt */
if (DMA_GetITStatus(DMA1_IT_TC4))
{
/* Clear DMA Stream Transfer Complete interrupt pending bit */
DMA_ClearITPendingBit(DMA1_IT_TC4);
FlgUsartTx=true;
}
}
/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/
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