--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/CAN/LoopBack/main.c	Mon Oct 03 21:19:15 2011 +1030
@@ -0,0 +1,388 @@
+/**
+  ******************************************************************************
+  * @file    CAN/LoopBack/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 "stm32_eval.h"
+
+/** @addtogroup STM32F10x_StdPeriph_Examples
+  * @{
+  */
+
+/** @addtogroup CAN_LoopBack
+  * @{
+  */ 
+
+
+
+/* Private define ------------------------------------------------------------*/
+#define __CAN1_USED__
+/* #define __CAN2_USED__*/   /* Please check that you device is 
+                                Connectivity line when using CAN2 */
+
+#ifdef  __CAN1_USED__
+  #define CANx CAN1
+#else /*__CAN2_USED__*/
+  #define CANx CAN2
+#endif  /* __CAN1_USED__ */
+
+/* Private typedef -----------------------------------------------------------*/
+typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+__IO uint32_t ret = 0; /* for return of the interrupt handling */
+volatile TestStatus TestRx;
+
+/* Private function prototypes -----------------------------------------------*/
+void NVIC_Configuration(void);
+TestStatus CAN_Polling(void);
+TestStatus CAN_Interrupt(void);
+
+/* 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
+     */     
+       
+
+
+#ifdef  __CAN1_USED__
+  /* CANx Periph clock enable */
+  RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);
+#else /*__CAN2_USED__*/
+  /* CAN1 & 2  Periph clock enable */
+  RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);
+  RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN2, ENABLE);
+#endif  /* __CAN1_USED__ */
+
+  /* NVIC Configuration */
+  NVIC_Configuration();
+  
+  /* Configures LED 1..4 */
+  STM_EVAL_LEDInit(LED1);
+  STM_EVAL_LEDInit(LED2);
+  STM_EVAL_LEDInit(LED3);
+  STM_EVAL_LEDInit(LED4);
+  
+  /* Turns selected LED Off */  
+  STM_EVAL_LEDOff(LED1);
+  STM_EVAL_LEDOff(LED2);
+  STM_EVAL_LEDOff(LED3);
+  STM_EVAL_LEDOff(LED4);
+  
+  /* CAN transmit at 125Kb/s and receive by polling in loopback mode */
+  TestRx = CAN_Polling();
+
+  if (TestRx == FAILED)
+  {
+    /* Turn on led LD3 */
+    STM_EVAL_LEDOn(LED3);
+  }
+  else
+  {
+    /* Turn on led LD1 */
+    STM_EVAL_LEDOn(LED1);
+  }
+
+  /* CAN transmit at 500Kb/s and receive by interrupt in loopback mode */
+  TestRx = CAN_Interrupt();
+
+  if (TestRx == FAILED)
+  {
+    /* Turn on led LD4 */
+    STM_EVAL_LEDOn(LED4);
+  }
+  else
+  {
+    /* Turn on led LD2 */
+    STM_EVAL_LEDOn(LED2);
+  }
+
+  /* Infinite loop */
+  while (1)
+  {
+  }
+}
+
+/**
+  * @brief  Configures the CAN, transmit and receive by polling
+  * @param  None
+  * @retval PASSED if the reception is well done, FAILED in other case
+  */
+TestStatus CAN_Polling(void)
+{
+  CAN_InitTypeDef        CAN_InitStructure;
+  CAN_FilterInitTypeDef  CAN_FilterInitStructure;
+  CanTxMsg TxMessage;
+  CanRxMsg RxMessage;
+  uint32_t i = 0;
+  uint8_t TransmitMailbox = 0;
+
+  /* CAN register init */
+  CAN_DeInit(CANx);
+
+  CAN_StructInit(&CAN_InitStructure);
+
+  /* CAN cell init */
+  CAN_InitStructure.CAN_TTCM=DISABLE;
+  CAN_InitStructure.CAN_ABOM=DISABLE;
+  CAN_InitStructure.CAN_AWUM=DISABLE;
+  CAN_InitStructure.CAN_NART=DISABLE;
+  CAN_InitStructure.CAN_RFLM=DISABLE;
+  CAN_InitStructure.CAN_TXFP=DISABLE;
+  CAN_InitStructure.CAN_Mode=CAN_Mode_LoopBack;
+  
+  /* Baudrate = 125kbps*/
+  CAN_InitStructure.CAN_SJW=CAN_SJW_1tq;
+  CAN_InitStructure.CAN_BS1=CAN_BS1_2tq;
+  CAN_InitStructure.CAN_BS2=CAN_BS2_3tq;
+  CAN_InitStructure.CAN_Prescaler=48;
+  CAN_Init(CANx, &CAN_InitStructure);
+
+  /* CAN filter init */
+#ifdef  __CAN1_USED__
+  CAN_FilterInitStructure.CAN_FilterNumber=0;
+#else /*__CAN2_USED__*/
+  CAN_FilterInitStructure.CAN_FilterNumber=14;
+#endif  /* __CAN1_USED__ */
+  CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask;
+  CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_32bit;
+  CAN_FilterInitStructure.CAN_FilterIdHigh=0x0000;
+  CAN_FilterInitStructure.CAN_FilterIdLow=0x0000;
+  CAN_FilterInitStructure.CAN_FilterMaskIdHigh=0x0000;
+  CAN_FilterInitStructure.CAN_FilterMaskIdLow=0x0000;  
+  CAN_FilterInitStructure.CAN_FilterFIFOAssignment=0;
+
+
+  CAN_FilterInitStructure.CAN_FilterActivation=ENABLE;
+  CAN_FilterInit(&CAN_FilterInitStructure);
+
+  /* transmit */
+  TxMessage.StdId=0x11;
+  TxMessage.RTR=CAN_RTR_DATA;
+  TxMessage.IDE=CAN_ID_STD;
+  TxMessage.DLC=2;
+  TxMessage.Data[0]=0xCA;
+  TxMessage.Data[1]=0xFE;
+
+  TransmitMailbox=CAN_Transmit(CANx, &TxMessage);
+  i = 0;
+  while((CAN_TransmitStatus(CANx, TransmitMailbox) != CANTXOK) && (i != 0xFFFF))
+  {
+    i++;
+  }
+
+  i = 0;
+  while((CAN_MessagePending(CANx, CAN_FIFO0) < 1) && (i != 0xFFFF))
+  {
+    i++;
+  }
+
+  /* receive */
+  RxMessage.StdId=0x00;
+  RxMessage.IDE=CAN_ID_STD;
+  RxMessage.DLC=0;
+  RxMessage.Data[0]=0x00;
+  RxMessage.Data[1]=0x00;
+  CAN_Receive(CANx, CAN_FIFO0, &RxMessage);
+
+  if (RxMessage.StdId!=0x11)
+  {
+    return FAILED;  
+  }
+
+  if (RxMessage.IDE!=CAN_ID_STD)
+  {
+    return FAILED;
+  }
+
+  if (RxMessage.DLC!=2)
+  {
+    return FAILED;  
+  }
+
+  if ((RxMessage.Data[0]<<8|RxMessage.Data[1])!=0xCAFE)
+  {
+    return FAILED;
+  }
+  
+  return PASSED; /* Test Passed */
+}
+
+/**
+  * @brief  Configures the CAN, transmit and receive using interrupt.
+  * @param  None
+  * @retval PASSED if the reception is well done, FAILED in other case
+  */
+TestStatus CAN_Interrupt(void)
+{
+  CAN_InitTypeDef        CAN_InitStructure;
+  CAN_FilterInitTypeDef  CAN_FilterInitStructure;
+  CanTxMsg TxMessage;
+  uint32_t i = 0;
+
+  /* CAN register init */
+  CAN_DeInit(CANx);
+
+
+  CAN_StructInit(&CAN_InitStructure);
+
+  /* CAN cell init */
+  CAN_InitStructure.CAN_TTCM=DISABLE;
+  CAN_InitStructure.CAN_ABOM=DISABLE;
+  CAN_InitStructure.CAN_AWUM=DISABLE;
+  CAN_InitStructure.CAN_NART=DISABLE;
+  CAN_InitStructure.CAN_RFLM=DISABLE;
+  CAN_InitStructure.CAN_TXFP=DISABLE;
+  CAN_InitStructure.CAN_Mode=CAN_Mode_LoopBack;
+  CAN_InitStructure.CAN_SJW=CAN_SJW_1tq;
+  
+  /* Baudrate = 500 Kbps */
+  CAN_InitStructure.CAN_BS1=CAN_BS1_2tq;
+  CAN_InitStructure.CAN_BS2=CAN_BS2_3tq;
+  CAN_InitStructure.CAN_Prescaler=12;
+  CAN_Init(CANx, &CAN_InitStructure);
+
+  /* CAN filter init */
+#ifdef  __CAN1_USED__
+  CAN_FilterInitStructure.CAN_FilterNumber=1;
+#else /*__CAN2_USED__*/
+  CAN_FilterInitStructure.CAN_FilterNumber=15;
+#endif  /* __CAN1_USED__ */
+  CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask;
+  CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_32bit;
+  CAN_FilterInitStructure.CAN_FilterIdHigh=0x0000;
+  CAN_FilterInitStructure.CAN_FilterIdLow=0x0000;
+  CAN_FilterInitStructure.CAN_FilterMaskIdHigh=0x0000;
+  CAN_FilterInitStructure.CAN_FilterMaskIdLow=0x0000;
+  CAN_FilterInitStructure.CAN_FilterFIFOAssignment=CAN_FIFO0;
+  CAN_FilterInitStructure.CAN_FilterActivation=ENABLE;
+  CAN_FilterInit(&CAN_FilterInitStructure);
+
+  /* CAN FIFO0 message pending interrupt enable */ 
+  CAN_ITConfig(CANx, CAN_IT_FMP0, ENABLE);
+
+  /* transmit 1 message */
+  TxMessage.StdId=0;
+  TxMessage.ExtId=0x1234;
+  TxMessage.IDE=CAN_ID_EXT;
+  TxMessage.RTR=CAN_RTR_DATA;
+  TxMessage.DLC=2;
+  TxMessage.Data[0]=0xDE;
+  TxMessage.Data[1]=0xCA;
+  CAN_Transmit(CANx, &TxMessage);
+
+  /* initialize the value that will be returned */
+  ret = 0xFF;
+       
+  /* receive message with interrupt handling */
+  i=0;
+  while((ret == 0xFF) && (i < 0xFFF))
+  {
+    i++;
+  }
+  
+  if (i == 0xFFF)
+  {
+    ret=0;  
+  }
+
+  /* disable interrupt handling */
+  CAN_ITConfig(CANx, CAN_IT_FMP0, DISABLE);
+
+  return (TestStatus)ret;
+}
+
+/**
+  * @brief  Configures the NVIC and Vector Table base address.
+  * @param  None
+  * @retval None
+  */
+void NVIC_Configuration(void)
+{
+  NVIC_InitTypeDef NVIC_InitStructure;
+
+  /* Enable CANx RX0 interrupt IRQ channel */
+#ifndef STM32F10X_CL
+
+#ifdef  __CAN1_USED__
+  NVIC_InitStructure.NVIC_IRQChannel = USB_LP_CAN1_RX0_IRQn;
+#else  /*__CAN2_USED__*/
+  /* CAN2 is not implemented in the device */
+   #error "CAN2 is implemented only in Connectivity line devices"
+  
+#endif /*__CAN1_USED__*/
+#else
+#ifdef  __CAN1_USED__ 
+  NVIC_InitStructure.NVIC_IRQChannel = CAN1_RX0_IRQn;
+#else  /*__CAN2_USED__*/
+  NVIC_InitStructure.NVIC_IRQChannel = CAN2_RX0_IRQn;
+#endif /*__CAN1_USED__*/
+
+#endif /* STM32F10X_CL*/
+  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
+  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+  NVIC_Init(&NVIC_InitStructure);
+}
+
+
+#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****/