PT7口测速问题

az8898 · 发表于 2011-6-1 07:16:26

同求

hello1043 · 发表于 2011-5-27 20:36:49

同求

glenclh · 发表于 2011-5-4 17:03:56

RTI 与PIT有啥区别

glenclh · 发表于 2011-5-4 17:03:54

RTI 与PIT有啥区别

sunrong · 发表于 2011-5-3 21:30:36

#include <hidef.h> /* common defines and macros */
#include <MC9S12XS128.h> /* derivative information */
#pragma LINK_INFO DERIVATIVE "mc9s12xs128"
/*------------iSmartcar小店提供-------------------*/
/*--说明---*/
//Prm 中TBDML_linker.prm中最后一行后添加 VECTOR ADDRESS 0x0000FFF0 RTI

int speed=0;
void init_RTI(void) //1ms
{
RTICTL=0X87;
CRGFLG_RTIF=1;
CRGINT_RTIE=1;

PACTL_PAMOD=0;//0 Event counter mode.
PACTL_PEDGE=1;//1 Rising edges on IOC7 pin cause the count to be incremented.
PACTL_PAEN=1;//1 Pulse Accumulator system enabled.
}
#pragma CODE_SEG __NEAR_SEG NON_BANKED
interrupt void RTI(void)
{
CRGFLG_RTIF=1;

speed=PACNT ;
PACNT=0;
}

void main(void)
{
init_RTI();
/* put your own code here */
EnableInterrupts;

for(;;) {} /* wait forever */
/* please make sure that you never leave this function */
}