--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/DMA/SPI_RAM/main.c	Mon Oct 03 21:19:15 2011 +1030
@@ -0,0 +1,358 @@
+/**
+  ******************************************************************************
+  * @file    DMA/SPI_RAM/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>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f10x.h"
+#include "platform_config.h"
+#include "stm32_eval.h"
+
+/** @addtogroup STM32F10x_StdPeriph_Examples
+  * @{
+  */
+
+/** @addtogroup DMA_SPI_RAM
+  * @{
+  */ 
+
+/* Private typedef -----------------------------------------------------------*/
+typedef enum { FAILED = 0, PASSED = !FAILED} TestStatus;
+
+/* Private define ------------------------------------------------------------*/
+#define BufferSize         32
+#define CRCPolynomial      7
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+SPI_InitTypeDef    SPI_InitStructure;
+DMA_InitTypeDef    DMA_InitStructure;
+uint8_t SPI_MASTER_Buffer_Rx[BufferSize], SPI_SLAVE_Buffer_Rx[BufferSize];
+volatile uint8_t SPI_MASTERCRCValue = 0, SPI_SLAVECRCValue = 0;
+volatile TestStatus TransferStatus1 = FAILED, TransferStatus2 = FAILED;
+
+uint8_t SPI_MASTER_Buffer_Tx[BufferSize] = {0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,
+                                            0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,0x10,
+                                            0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,
+                                            0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,0x20};
+
+uint8_t SPI_SLAVE_Buffer_Tx[BufferSize] = {0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,
+                                           0x59,0x5A,0x5B,0x5C,0x5D,0x5E,0x5F,0x60,
+                                           0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,
+                                           0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,0x70};
+
+/* Private function prototypes -----------------------------------------------*/
+void RCC_Configuration(void);
+void GPIO_Configuration(void);
+TestStatus Buffercmp(uint8_t* pBuffer, uint8_t* pBuffer1, uint16_t BufferLength);
+
+/* 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
+     */     
+  
+  /* Configure the STM32_EVAL LED */
+  STM_EVAL_LEDInit(LED1);
+  STM_EVAL_LEDInit(LED2);
+  /* Turn Off LED1 and LED2 */
+  STM_EVAL_LEDOff(LED1);
+  STM_EVAL_LEDOff(LED2);     
+  
+  /* System Clocks Configuration */
+  RCC_Configuration();
+       
+  /* Configure the GPIO ports */
+  GPIO_Configuration();
+
+  /* SPI_MASTER configuration ------------------------------------------------*/
+  SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
+  SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
+  SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
+  SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
+  SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
+  SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
+  SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;
+  SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
+  SPI_InitStructure.SPI_CRCPolynomial = CRCPolynomial;
+  SPI_Init(SPI_MASTER, &SPI_InitStructure);
+  
+  /* SPI_SLAVE configuration -------------------------------------------------*/
+  SPI_InitStructure.SPI_Mode = SPI_Mode_Slave;
+  SPI_Init(SPI_SLAVE, &SPI_InitStructure);
+
+  /* SPI_MASTER_Rx_DMA_Channel configuration ---------------------------------*/
+  DMA_DeInit(SPI_MASTER_Rx_DMA_Channel);
+  DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SPI_MASTER_DR_Base;
+  DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)SPI_MASTER_Buffer_Rx;
+  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
+  DMA_InitStructure.DMA_BufferSize = BufferSize;
+  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_High;
+  DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
+  DMA_Init(SPI_MASTER_Rx_DMA_Channel, &DMA_InitStructure);
+
+  /* SPI_MASTER_Tx_DMA_Channel configuration ---------------------------------*/
+  DMA_DeInit(SPI_MASTER_Tx_DMA_Channel);  
+  DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SPI_MASTER_DR_Base;
+  DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)SPI_MASTER_Buffer_Tx;
+  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
+  DMA_InitStructure.DMA_Priority = DMA_Priority_Low;
+  DMA_Init(SPI_MASTER_Tx_DMA_Channel, &DMA_InitStructure);
+
+  /* SPI_SLAVE_Rx_DMA_Channel configuration ----------------------------------*/
+  DMA_DeInit(SPI_SLAVE_Rx_DMA_Channel);  
+  DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SPI_SLAVE_DR_Base;
+  DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)SPI_SLAVE_Buffer_Rx;
+  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
+  DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
+  DMA_Init(SPI_SLAVE_Rx_DMA_Channel, &DMA_InitStructure);
+
+  /* SPI_SLAVE_Tx_DMA_Channel configuration ----------------------------------*/
+  DMA_DeInit(SPI_SLAVE_Tx_DMA_Channel);  
+  DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SPI_SLAVE_DR_Base;
+  DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)SPI_SLAVE_Buffer_Tx;
+  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
+  DMA_InitStructure.DMA_Priority = DMA_Priority_Medium;
+  DMA_Init(SPI_SLAVE_Tx_DMA_Channel, &DMA_InitStructure);
+
+  /* Enable SPI_MASTER DMA Tx request */
+  SPI_I2S_DMACmd(SPI_MASTER, SPI_I2S_DMAReq_Tx, ENABLE);
+  /* Enable SPI_MASTER DMA Rx request */
+  SPI_I2S_DMACmd(SPI_MASTER, SPI_I2S_DMAReq_Rx, ENABLE);
+  /* Enable SPI_SLAVE DMA Tx request */
+  SPI_I2S_DMACmd(SPI_SLAVE, SPI_I2S_DMAReq_Tx, ENABLE);
+  /* Enable SPI_SLAVE DMA Rx request */
+  SPI_I2S_DMACmd(SPI_SLAVE, SPI_I2S_DMAReq_Rx, ENABLE);
+ 
+  /* Enable SPI_MASTER CRC calculation */
+  SPI_CalculateCRC(SPI_MASTER, ENABLE);
+  /* Enable SPI_SLAVE CRC calculation */
+  SPI_CalculateCRC(SPI_SLAVE, ENABLE);
+
+  /* Enable SPI_SLAVE */
+  SPI_Cmd(SPI_SLAVE, ENABLE);
+  /* Enable SPI_MASTER */
+  SPI_Cmd(SPI_MASTER, ENABLE);
+
+  /* Enable DMA channels */
+  DMA_Cmd(SPI_MASTER_Rx_DMA_Channel, ENABLE);
+  DMA_Cmd(SPI_SLAVE_Rx_DMA_Channel, ENABLE);
+  DMA_Cmd(SPI_SLAVE_Tx_DMA_Channel, ENABLE);
+  DMA_Cmd(SPI_MASTER_Tx_DMA_Channel, ENABLE);
+   
+  /* Transfer complete */
+  while(!DMA_GetFlagStatus(SPI_MASTER_Rx_DMA_FLAG));
+  while(!DMA_GetFlagStatus(SPI_SLAVE_Rx_DMA_FLAG));
+  while(!DMA_GetFlagStatus(SPI_SLAVE_Tx_DMA_FLAG));
+  while(!DMA_GetFlagStatus(SPI_MASTER_Tx_DMA_FLAG));
+
+  /* Wait for SPI_MASTER data reception: CRC transmitted by SPI_SLAVE */
+  while(SPI_I2S_GetFlagStatus(SPI_MASTER, SPI_I2S_FLAG_RXNE) == RESET);
+  /* Wait for SPI_SLAVE data reception: CRC transmitted by SPI_MASTER */
+  while(SPI_I2S_GetFlagStatus(SPI_SLAVE, SPI_I2S_FLAG_RXNE) == RESET);
+
+  /* Check the correctness of written dada */
+  TransferStatus1 = Buffercmp(SPI_SLAVE_Buffer_Rx, SPI_MASTER_Buffer_Tx, BufferSize);
+  TransferStatus2 = Buffercmp(SPI_MASTER_Buffer_Rx, SPI_SLAVE_Buffer_Tx, BufferSize);
+  /* TransferStatus1, TransferStatus2 = PASSED, if the data transmitted and received 
+     are correct */
+  /* TransferStatus1, TransferStatus2 = FAILED, if the data transmitted and received  
+     are different */
+
+  /* Test on the SPI_MASTER CRCR ERROR flag */
+  if ((SPI_I2S_GetFlagStatus(SPI_MASTER, SPI_FLAG_CRCERR)) != RESET)
+  {
+    TransferStatus1 = FAILED;
+  }
+  /* Test on the SPI_SLAVE CRCR ERROR flag */
+  if ((SPI_I2S_GetFlagStatus(SPI_SLAVE, SPI_FLAG_CRCERR)) != RESET)
+  {
+    TransferStatus2 = FAILED;
+  } 
+
+  /* Read SPI_MASTER received CRC value */
+  SPI_MASTERCRCValue = SPI_I2S_ReceiveData(SPI_MASTER);
+  /* Read SPI_SLAVE received CRC value */
+  SPI_SLAVECRCValue = SPI_I2S_ReceiveData(SPI_SLAVE);
+
+  if (TransferStatus1 != FAILED)
+  {
+    /* OK */
+    /* Turn on LD1 */
+    STM_EVAL_LEDOn(LED1);
+  }
+  else
+  { 
+    /* KO */
+    /* Turn Off LD1 */
+    STM_EVAL_LEDOff(LED1);
+  }
+    
+  if (TransferStatus2 != FAILED)
+  {	
+    /* OK */
+    /* Turn on LD2 */
+    STM_EVAL_LEDOn(LED2);
+  }
+  else
+  { 
+    /* KO */
+    /* Turn Off LD2 */
+    STM_EVAL_LEDOff(LED2);
+  }
+
+  while (1)
+  {
+  }
+}
+
+/**
+  * @brief  Configures the different system clocks.
+  * @param  None
+  * @retval None
+  */
+void RCC_Configuration(void)
+{
+  /* PCLK2 = HCLK/2 */
+  RCC_PCLK2Config(RCC_HCLK_Div2); 
+
+  /* Enable peripheral clocks ------------------------------------------------*/
+  /* Enable DMA1 or/and DMA2 clock */
+  RCC_AHBPeriphClockCmd(SPI_MASTER_DMA_CLK | SPI_SLAVE_DMA_CLK, ENABLE);
+
+#ifdef USE_STM3210C_EVAL
+  /* Enable GPIO clock for SPI_MASTER and SPI_SLAVE */
+  RCC_APB2PeriphClockCmd(SPI_MASTER_GPIO_CLK | SPI_SLAVE_GPIO_CLK |
+  RCC_APB2Periph_AFIO, ENABLE);
+
+  /* Enable SPI_MASTER Periph clock */
+  RCC_APB1PeriphClockCmd(SPI_MASTER_CLK, ENABLE);
+                           
+#else
+  /* Enable SPI_MASTER clock and GPIO clock for SPI_MASTER and SPI_SLAVE */
+  RCC_APB2PeriphClockCmd(SPI_MASTER_GPIO_CLK | SPI_SLAVE_GPIO_CLK |
+                         SPI_MASTER_CLK, ENABLE);
+#endif
+  /* Enable SPI_SLAVE Periph clock */
+  RCC_APB1PeriphClockCmd(SPI_SLAVE_CLK, ENABLE);
+}
+
+/**
+  * @brief  Configures the different GPIO ports.
+  * @param  None
+  * @retval None
+  */
+void GPIO_Configuration(void)
+{
+  GPIO_InitTypeDef GPIO_InitStructure;
+
+#ifdef USE_STM3210C_EVAL
+  /* Enable SPI3 Pins Software Remapping */
+  GPIO_PinRemapConfig(GPIO_Remap_SPI3, ENABLE);
+#endif
+
+  /* Configure SPI_MASTER pins: SCK and MOSI */
+  GPIO_InitStructure.GPIO_Pin = SPI_MASTER_PIN_SCK | SPI_MASTER_PIN_MOSI;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+  GPIO_Init(SPI_MASTER_GPIO, &GPIO_InitStructure);
+  /* Configure SPI_MASTER pins:  MISO */
+  GPIO_InitStructure.GPIO_Pin = SPI_MASTER_PIN_MISO;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+  GPIO_Init(SPI_MASTER_GPIO, &GPIO_InitStructure);
+
+  /* Configure SPI_SLAVE pins: SCK and MOSI */
+  GPIO_InitStructure.GPIO_Pin = SPI_SLAVE_PIN_SCK | SPI_SLAVE_PIN_MOSI;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
+  GPIO_Init(SPI_SLAVE_GPIO, &GPIO_InitStructure);
+  /* Configure SPI_SLAVE pins: MISO  */
+  GPIO_InitStructure.GPIO_Pin = SPI_SLAVE_PIN_MISO ;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+  GPIO_Init(SPI_SLAVE_GPIO, &GPIO_InitStructure);
+}
+
+/**
+  * @brief  Compares two buffers.
+  * @param  pBuffer, pBuffer1: buffers to be compared.
+  * @param  BufferLength: buffer's length
+  * @retval PASSED: pBuffer identical to pBuffer1
+  *         FAILED: pBuffer differs from pBuffer1
+  */
+TestStatus Buffercmp(uint8_t* pBuffer, uint8_t* pBuffer1, uint16_t BufferLength)
+{
+  while(BufferLength--)
+  {
+    if(*pBuffer != *pBuffer1)
+    {
+      return FAILED;
+    }
+    
+    pBuffer++;
+    pBuffer1++;
+  }
+
+  return PASSED;  
+}
+
+#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
+
+/**
+  * @}
+  */ 
+
+/**
+  * @}
+  */ 
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/