diff options
Diffstat (limited to 'src/stm32lib/examples/USART/DMA_Interrupt/main.c')
| -rwxr-xr-x | src/stm32lib/examples/USART/DMA_Interrupt/main.c | 362 |
1 files changed, 0 insertions, 362 deletions
diff --git a/src/stm32lib/examples/USART/DMA_Interrupt/main.c b/src/stm32lib/examples/USART/DMA_Interrupt/main.c deleted file mode 100755 index e1b031d..0000000 --- a/src/stm32lib/examples/USART/DMA_Interrupt/main.c +++ /dev/null @@ -1,362 +0,0 @@ -/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
-* File Name : main.c
-* Author : MCD Application Team
-* Version : V2.0.1
-* Date : 06/13/2008
-* Description : Main program body
-********************************************************************************
-* 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.
-*******************************************************************************/
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f10x_lib.h"
-#include "platform_config.h"
-
-/* Private typedef -----------------------------------------------------------*/
-typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
-
-/* Private define ------------------------------------------------------------*/
-#define USART1_DR_Base 0x40013804
-#define USART2_DR_Base 0x40004404
-#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;
-u8 TxBuffer1[] = "USART DMA Interrupt: USART1 -> USART2 using DMA Tx and Rx Flag";
-u8 TxBuffer2[] = "USART DMA Interrupt: USART2 -> USART1 using DMA Tx and Rx Interrupt";
-u8 RxBuffer1[TxBufferSize2];
-u8 RxBuffer2[TxBufferSize1];
-u8 NbrOfDataToRead = TxBufferSize1;
-u8 index = 0;
-volatile TestStatus TransferStatus1 = FAILED, TransferStatus2 = FAILED;
-ErrorStatus HSEStartUpStatus;
-
-/* Private function prototypes -----------------------------------------------*/
-void RCC_Configuration(void);
-void GPIO_Configuration(void);
-void NVIC_Configuration(void);
-void DMA_Configuration(void);
-TestStatus Buffercmp(u8* pBuffer1, u8* pBuffer2, u16 BufferLength);
-
-/* Private functions ---------------------------------------------------------*/
-
-/*******************************************************************************
-* Function Name : main
-* Description : Main program
-* Input : None
-* Output : None
-* Return : None
-*******************************************************************************/
-int main(void)
-{
-#ifdef DEBUG
- debug();
-#endif
-
- /* System Clocks Configuration */
- RCC_Configuration();
-
- /* NVIC configuration */
- NVIC_Configuration();
-
- /* Configure the GPIO ports */
- GPIO_Configuration();
-
- /* Configure the DMA */
- DMA_Configuration();
-
-/* USART1 and USART2 configuration ------------------------------------------------------*/
- /* USART and USART2 configured as follow:
- - BaudRate = 230400 baud
- - Word Length = 8 Bits
- - One Stop Bit
- - No parity
- - Hardware flow control disabled (RTS and CTS signals)
- - Receive and transmit enabled
- */
-
- USART_InitStructure.USART_BaudRate = 230400;
- USART_InitStructure.USART_WordLength = USART_WordLength_8b;
- USART_InitStructure.USART_StopBits = USART_StopBits_1;
- USART_InitStructure.USART_Parity = USART_Parity_No;
- USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
- USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
-
- /* Configure USART1 */
- USART_Init(USART1, &USART_InitStructure);
- /* Configure USART2 */
- USART_Init(USART2, &USART_InitStructure);
-
- /* Enable USART1 DMA TX request */
- USART_DMACmd(USART1, USART_DMAReq_Tx, ENABLE);
-
- /* Enable USART2 DMA TX request */
- USART_DMACmd(USART2, USART_DMAReq_Tx, ENABLE);
-
- /* Enable the USART2 Receive Interrupt */
- USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);
-
- /* Enable DMA1 Channel4 */
- DMA_Cmd(DMA1_Channel4, ENABLE);
- /* Enable DMA1 Channel7 */
- DMA_Cmd(DMA1_Channel7, ENABLE);
-
- /* Enable the USART1 */
- USART_Cmd(USART1, ENABLE);
- /* Enable the USART2 */
- USART_Cmd(USART2, ENABLE);
-
- /* Receive the TxBuffer2 */
- while(index < TxBufferSize2)
- {
- while(USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET)
- {
- }
- RxBuffer1[index++] = USART_ReceiveData(USART1);
- }
-
- /* Wait until DMA1_Channel 4 Transfer Complete */
- while (DMA_GetFlagStatus(DMA1_FLAG_TC4) == RESET)
- {
- }
- /* Wait until DMA1_Channel 7 Transfer Complete */
- while (DMA_GetFlagStatus(DMA1_FLAG_TC7) == RESET)
- {
- }
-
- /* Check the received data with the send ones */
- TransferStatus1 = Buffercmp(TxBuffer2, RxBuffer1, TxBufferSize2);
- /* TransferStatus1 = PASSED, if the data transmitted from USART2 and
- received by USART1 are the same */
- /* TransferStatus1 = FAILED, if the data transmitted from USART2 and
- received by USART1 are different */
- TransferStatus2 = Buffercmp(TxBuffer1, RxBuffer2, TxBufferSize1);
- /* TransferStatus2 = PASSED, if the data transmitted from USART1 and
- received by USART2 are the same */
- /* TransferStatus2 = FAILED, if the data transmitted from USART1 and
- received by USART2 are different */
-
- while (1)
- {
- }
-}
-
-/*******************************************************************************
-* Function Name : RCC_Configuration
-* Description : Configures the different system clocks.
-* Input : None
-* Output : None
-* Return : 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_Div2);
-
- /* PLLCLK = 8MHz * 9 = 72 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)
- {
- }
- }
-
- /* DMA clock enable */
- RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
- /* Enable USART1, GPIOA, GPIOx and AFIO clocks */
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA |
- RCC_APB2Periph_GPIOx | RCC_APB2Periph_AFIO, ENABLE);
- /* Enable USART2 clock */
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
-}
-
-/*******************************************************************************
-* Function Name : GPIO_Configuration
-* Description : Configures the different GPIO ports.
-* Input : None
-* Output : None
-* Return : None
-*******************************************************************************/
-void GPIO_Configuration(void)
-{
- GPIO_InitTypeDef GPIO_InitStructure;
-
-#ifdef USE_STM3210B_EVAL
- /* Enable the USART2 Pins Software Remapping */
- GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE);
-#endif
-
- /* Configure USART1 Rx (PA.10) as input floating */
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
- GPIO_Init(GPIOA, &GPIO_InitStructure);
-
- /* Configure USART2 Rx as input floating */
- GPIO_InitStructure.GPIO_Pin = GPIO_RxPin;
- GPIO_Init(GPIOx, &GPIO_InitStructure);
-
- /* Configure USART1 Tx (PA.09) as alternate function push-pull */
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
- GPIO_Init(GPIOA, &GPIO_InitStructure);
-
- /* Configure USART2 Tx as alternate function push-pull */
- GPIO_InitStructure.GPIO_Pin = GPIO_TxPin;
- GPIO_Init(GPIOx, &GPIO_InitStructure);
-}
-
-/*******************************************************************************
-* Function Name : NVIC_Configuration
-* Description : Configures the nested vectored interrupt controller.
-* Input : None
-* Output : None
-* Return : None
-*******************************************************************************/
-void NVIC_Configuration(void)
-{
- NVIC_InitTypeDef NVIC_InitStructure;
-
-#ifdef VECT_TAB_RAM
- /* Set the Vector Table base location at 0x20000000 */
- NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
-#else /* VECT_TAB_FLASH */
- /* Set the Vector Table base location at 0x08000000 */
- NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
-#endif
-
- /* Enable the USART2 Interrupt */
- NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQChannel;
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
- NVIC_Init(&NVIC_InitStructure);
-}
-
-/*******************************************************************************
-* Function Name : DMA_Configuration
-* Description : Configures the DMA.
-* Input : None
-* Output : None
-* Return : None
-*******************************************************************************/
-void DMA_Configuration(void)
-{
- DMA_InitTypeDef DMA_InitStructure;
-
- /* DMA1 Channel4 (triggered by USART1 Tx event) Config */
- DMA_DeInit(DMA1_Channel4);
- DMA_InitStructure.DMA_PeripheralBaseAddr = USART1_DR_Base;
- DMA_InitStructure.DMA_MemoryBaseAddr = (u32)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(DMA1_Channel4, &DMA_InitStructure);
-
- /* DMA1 Channel7 (triggered by USART2 Tx event) Config */
- DMA_DeInit(DMA1_Channel7);
- DMA_InitStructure.DMA_PeripheralBaseAddr = USART2_DR_Base;
- DMA_InitStructure.DMA_MemoryBaseAddr = (u32)TxBuffer2;
- DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
- DMA_InitStructure.DMA_BufferSize = TxBufferSize2;
- DMA_Init(DMA1_Channel7, &DMA_InitStructure);
-}
-
-/*******************************************************************************
-* Function Name : Buffercmp
-* Description : Compares two buffers.
-* Input : - pBuffer1, pBuffer2: buffers to be compared.
-* : - BufferLength: buffer's length
-* Output : None
-* Return : PASSED: pBuffer1 identical to pBuffer2
-* FAILED: pBuffer1 differs from pBuffer2
-*******************************************************************************/
-TestStatus Buffercmp(u8* pBuffer1, u8* pBuffer2, u16 BufferLength)
-{
- while(BufferLength--)
- {
- if(*pBuffer1 != *pBuffer2)
- {
- return FAILED;
- }
-
- pBuffer1++;
- pBuffer2++;
- }
-
- return PASSED;
-}
-
-#ifdef DEBUG
-/*******************************************************************************
-* Function Name : assert_failed
-* Description : Reports the name of the source file and the source line number
-* where the assert_param error has occurred.
-* Input : - file: pointer to the source file name
-* - line: assert_param error line source number
-* Output : None
-* Return : None
-*******************************************************************************/
-void assert_failed(u8* file, u32 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
-
-/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/
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