diff libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/CAN/Networking/main.c @ 0:c59513fd84fb

Initial commit of STM32 test code.
author Daniel O'Connor <darius@dons.net.au>
date Mon, 03 Oct 2011 21:19:15 +1030
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/CAN/Networking/main.c	Mon Oct 03 21:19:15 2011 +1030
@@ -0,0 +1,350 @@
+/**
+  ******************************************************************************
+  * @file    CAN/Networking/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"
+
+/** @addtogroup STM32F10x_StdPeriph_Examples
+  * @{
+  */
+
+/** @addtogroup CAN_Networking
+  * @{
+  */ 
+
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+#define __CAN1_USED__
+/* #define __CAN2_USED__*/
+
+#ifdef  __CAN1_USED__
+  #define CANx                       CAN1
+  #define GPIO_CAN                   GPIO_CAN1
+  #define GPIO_Remapping_CAN         GPIO_Remapping_CAN1
+  #define GPIO_CAN                   GPIO_CAN1
+  #define GPIO_Pin_CAN_RX            GPIO_Pin_CAN1_RX
+  #define GPIO_Pin_CAN_TX            GPIO_Pin_CAN1_TX
+#else /*__CAN2_USED__*/
+  #define CANx                       CAN2
+  #define GPIO_CAN                   GPIO_CAN2
+  #define GPIO_Remapping_CAN             GPIO_Remap_CAN2
+  #define GPIO_CAN                   GPIO_CAN2
+  #define GPIO_Pin_CAN_RX            GPIO_Pin_CAN2_RX
+  #define GPIO_Pin_CAN_TX            GPIO_Pin_CAN2_TX
+#endif  /* __CAN1_USED__ */
+
+#define KEY_PRESSED     0x01
+#define KEY_NOT_PRESSED 0x00
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+CAN_InitTypeDef        CAN_InitStructure;
+CAN_FilterInitTypeDef  CAN_FilterInitStructure;
+CanTxMsg TxMessage;
+uint8_t KeyNumber = 0x0;
+
+/* Private function prototypes -----------------------------------------------*/
+void NVIC_Config(void);
+void CAN_Config(void);
+void LED_Display(uint8_t Ledstatus);
+void Init_RxMes(CanRxMsg *RxMessage);
+void Delay(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
+     */     
+       
+  /* NVIC configuration */
+  NVIC_Config();
+
+  /* Configures LED 1..4 */
+  STM_EVAL_LEDInit(LED1);
+  STM_EVAL_LEDInit(LED2);
+  STM_EVAL_LEDInit(LED3);
+  STM_EVAL_LEDInit(LED4);
+  
+  /* Configure Push button key */
+  STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_GPIO); 
+   
+  /* CAN configuration */
+  CAN_Config();
+  
+  CAN_ITConfig(CANx, CAN_IT_FMP0, ENABLE);
+
+  /* turn off all leds*/
+  STM_EVAL_LEDOff(LED1);
+  STM_EVAL_LEDOff(LED2);
+  STM_EVAL_LEDOff(LED3);
+  STM_EVAL_LEDOff(LED4);
+ 
+  /* Infinite loop */
+  while(1)
+  {
+    while(STM_EVAL_PBGetState(BUTTON_KEY) == KEY_PRESSED)
+    {
+      if(KeyNumber == 0x4) 
+      {
+        KeyNumber = 0x00;
+      }
+      else
+      {
+        LED_Display(++KeyNumber);
+        TxMessage.Data[0] = KeyNumber;
+        CAN_Transmit(CANx, &TxMessage);
+        Delay();
+        
+        while(STM_EVAL_PBGetState(BUTTON_KEY) != KEY_NOT_PRESSED)
+        {
+        }
+      }
+    }
+  }
+}
+
+/**
+  * @brief  Configures the CAN.
+  * @param  None
+  * @retval None
+  */
+void CAN_Config(void)
+{
+  GPIO_InitTypeDef  GPIO_InitStructure;
+  
+  /* GPIO clock enable */
+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
+#ifdef  __CAN1_USED__
+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_CAN1, ENABLE);
+#else /*__CAN2_USED__*/
+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_CAN1, ENABLE);
+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_CAN2, ENABLE);
+#endif  /* __CAN1_USED__ */
+  /* Configure CAN pin: RX */
+  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_CAN_RX;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
+  GPIO_Init(GPIO_CAN, &GPIO_InitStructure);
+  
+  /* Configure CAN pin: TX */
+  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_CAN_TX;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+  GPIO_Init(GPIO_CAN, &GPIO_InitStructure);
+  
+  GPIO_PinRemapConfig(GPIO_Remapping_CAN , ENABLE);
+  
+  /* CANx Periph clock enable */
+#ifdef  __CAN1_USED__
+  RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);
+#else /*__CAN2_USED__*/
+  RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);
+  RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN2, ENABLE);
+#endif  /* __CAN1_USED__ */
+  
+  
+  /* 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_Normal;
+  
+  /* CAN Baudrate = 1MBps*/
+  CAN_InitStructure.CAN_SJW = CAN_SJW_1tq;
+  CAN_InitStructure.CAN_BS1 = CAN_BS1_3tq;
+  CAN_InitStructure.CAN_BS2 = CAN_BS2_5tq;
+  CAN_InitStructure.CAN_Prescaler = 4;
+  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 = 0x321;
+  TxMessage.ExtId = 0x01;
+  TxMessage.RTR = CAN_RTR_DATA;
+  TxMessage.IDE = CAN_ID_STD;
+  TxMessage.DLC = 1;
+}
+
+/**
+  * @brief  Configures the NVIC for CAN.
+  * @param  None
+  * @retval None
+  */
+void NVIC_Config(void)
+{
+  NVIC_InitTypeDef  NVIC_InitStructure;
+
+  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
+  
+#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 = 0x0;
+  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0;
+  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+  NVIC_Init(&NVIC_InitStructure);
+}
+
+/**
+  * @brief  Initializes a Rx Message.
+  * @param  CanRxMsg *RxMessage
+  * @retval None
+  */
+void Init_RxMes(CanRxMsg *RxMessage)
+{
+  uint8_t i = 0;
+
+  RxMessage->StdId = 0x00;
+  RxMessage->ExtId = 0x00;
+  RxMessage->IDE = CAN_ID_STD;
+  RxMessage->DLC = 0;
+  RxMessage->FMI = 0;
+  for (i = 0;i < 8;i++)
+  {
+    RxMessage->Data[i] = 0x00;
+  }
+}
+
+/**
+  * @brief  Turn ON/OFF the dedicate led
+  * @param  Ledstatus: Led number from 0 to 3.
+  * @retval None
+  */
+void LED_Display(uint8_t Ledstatus)
+{
+  /* Turn off all leds */
+  STM_EVAL_LEDOff(LED1);
+  STM_EVAL_LEDOff(LED2);
+  STM_EVAL_LEDOff(LED3);
+  STM_EVAL_LEDOff(LED4);
+  
+  switch(Ledstatus)
+  {
+    case(1): 
+      STM_EVAL_LEDOn(LED1);
+      break;
+   
+    case(2): 
+      STM_EVAL_LEDOn(LED2);
+      break;
+ 
+    case(3): 
+      STM_EVAL_LEDOn(LED3);
+      break;
+
+    case(4): 
+      STM_EVAL_LEDOn(LED4);
+      break;
+    default:
+      break;
+  }
+}
+
+/**
+  * @brief  Delay
+  * @param  None
+  * @retval None
+  */
+void Delay(void)
+{
+  uint16_t nTime = 0x0000;
+
+  for(nTime = 0; nTime <0xFFF; nTime++)
+  {
+  }
+}
+
+#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****/