lpc1700 can通讯例程 - - Powered by Discuz!

/****************************************Copyright (c)****************************************************
**
**--------------File Info---------------------------------------------------------------------------------
** File name: main.c
** Last modified Date: 2009-05-12
** Last Version: V1.01
** Descriptions: The main() function example template
**
**--------------------------------------------------------------------------------------------------------
** Created by: Chengmingji
** Created date: 2009-07-24
** Version: V1.00
** Descriptions: 添加用户应用程序
**
**--------------------------------------------------------------------------------------------------------
** Modified by: Liangbaoqiong
** Modified date: 2009-07-27
** Version: V1.01
** Descriptions: 编写CAN例程
**
** Rechecked by: Zhang bin1
*********************************************************************************************************/
#include "LPC17xx.h" /* LPC17xx外设寄存器 */
#include "LPC1700CAN.h"
/*********************************************************************************************************
** Function name: SysDelay
** Descriptions: 较为准确的软件延时函数
** Input parameters: ulCount: 输入延时值，如该值为主频值，则延时时间为3秒
** output parameters: 无
** Returned value: 无
*********************************************************************************************************/
__asm void SysDelay (uint32_t ulCount)
{
subs r0, #1;
bne SysDelay;
bx lr;
}
extern uint32_t SystemFrequency;
/*********************************************************************************************************
** Function name: main
** Descriptions: 测试时短接JP15,逻辑分析仪分别与COM8中CANH和CANL相接，然后打开ZLGCANTest调试软件
** 设置波特率为1000kbps，启动观察接收情况
** input parameters: 无
** output parameters: 无
** Returned value: 无
*********************************************************************************************************/
int main (void)
{
unsigned char ucData11[]={0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88};
SystemInit(); /* 系统初始化 */
CAN_Init(0,BPS_10K); /* 初始化CAN1 通道 1M波特率 */
/*
* 写报文信息(报文数据长度、是否标准帧、ID、发送数据所在的数组)
*/
while(!writedetail(8,1, 0x08888888,ucData11));
while (1) {
CANSend(0, 2);
SysDelay(SystemFrequency / 6); /* 延时3/6 s = 500ms */
}
}
/*********************************************************************************************************
End Of File
*********************************************************************************************************/

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