lpc1700 can通訊例程

ID:331440 · 發(fā)表于 2018-5-16 17:14

lpc1700 can通訊例程

單片機(jī)源程序如下:

/****************************************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: 添加用戶應(yīng)用程序
**
**--------------------------------------------------------------------------------------------------------
** Modified by: Liangbaoqiong
** Modified date: 2009-07-27
** Version: V1.01
** Descriptions: 編寫CAN例程
**
** Rechecked by: Zhang bin1
*********************************************************************************************************/
#include "LPC17xx.h" /* LPC17xx外設(shè)寄存器 */
#include "LPC1700CAN.h"
/*********************************************************************************************************
** Function name: SysDelay
** Descriptions: 較為準(zhǔn)確的軟件延時(shí)函數(shù)
** Input parameters: ulCount: 輸入延時(shí)值，如該值為主頻值，則延時(shí)時(shí)間為3秒
** output parameters: 無
** Returned value: 無
*********************************************************************************************************/
__asm void SysDelay (uint32_t ulCount)
{
subs r0, #1;
bne SysDelay;
bx lr;
}
extern uint32_t SystemFrequency;
/*********************************************************************************************************
** Function name: main
** Descriptions: 測(cè)試時(shí)短接JP15,邏輯分析儀分別與COM8中CANH和CANL相接，然后打開ZLGCANTest調(diào)試軟件
** 設(shè)置波特率為1000kbps，啟動(dòng)觀察接收情況
** input parameters: 無
** output parameters: 無
** Returned value: 無
*********************************************************************************************************/
int main (void)
{
unsigned char ucData11[]={0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88};
SystemInit(); /* 系統(tǒng)初始化 */
CAN_Init(0,BPS_10K); /* 初始化CAN1 通道 1M波特率 */
/*
* 寫報(bào)文信息(報(bào)文數(shù)據(jù)長(zhǎng)度、是否標(biāo)準(zhǔn)幀、ID、發(fā)送數(shù)據(jù)所在的數(shù)組)
*/
while(!writedetail(8,1, 0x08888888,ucData11));
while (1) {
CANSend(0, 2);
SysDelay(SystemFrequency / 6); /* 延時(shí)3/6 s = 500ms */
}
}
/*********************************************************************************************************
End Of File
*********************************************************************************************************/