/**
******************************************************************************
* @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.
*
*
© COPYRIGHT 2011 STMicroelectronics
******************************************************************************
*/
/* 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****/