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標題:
error C213: left side of asn-op not an lvalue單片機keil報錯
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作者:
幽魂小茜
時間:
2017-6-4 15:25
標題:
error C213: left side of asn-op not an lvalue單片機keil報錯
QQ截圖20170604151743.png
(125.3 KB, 下載次數: 128)
下載附件
2017-6-4 15:19 上傳
keil報錯:error C213: left side of asn-op not an lvalue
單片機源程序:
#include "STC12C5A.h"
#include "iodefine.h"
static void DisplayProcess( void );
static void PutToDispCache( uint val );
static void sendsubf( uint sendword );
static xdata uchar _dispCache[4] = { 0 };
static xdata uchar _recFlag = 0;
uint _receiveword = 0;
void SBUFinit( void )
{
S2SMOD = 0x00; //波特率無加成
S2CON = 0x50; //01010000 8位可變波特率,無奇偶校驗位。
ES2 = 1; //允許串口中斷
BRTR = 1; //允許獨立波特率發生器運行
BRT = 96; //波特率=SCLK/12/(256-BRT)96----9600
while(1){
if( _recFlag == 1){
sendsubf( _receiveword );
PutToDispCache ( _receiveword );
Display( _dispCache, 0x22 );
_recFlag = 0;
}
}
}
void sendsubf( uint sendword ) ///向串口發送數據
{
ES2 = 0;
S2TI = 0;
S2BUF = sendword; //需要發送的數據先送到SBUF 寄存器中
while( S2TI==0 ); //等到數據發送完再進行下一句代碼
S2TI =0;
ES2 = 1;
}
void receive_int( void ) interrupt 8 //串口中斷,接收數據
{
if( S2RI ){
S2RI = 0;
_receiveword = S2BUF;
_recFlag = 1;
}else( S2TI = 0 );
}
static void PutToDispCache ( uint val )
{
if( val > 9999 ){ //超過顯示最大值,顯示最大值9999
val = 9999;
}
if( val < 0 ){ //低于顯示最小值,顯示最小值0
val = 0;
}
_dispCache[0] = val / 1000;
val %= 1000;
_dispCache[1] = val / 100;
val %= 100;
_dispCache[2] = val / 10;
_dispCache[3] = val % 10;
}
復制代碼
作者:
刺客卓
時間:
2017-12-20 20:13
S2CON &= ~S2RI
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