sys_isr.c

来自「其乐达(Cheertek)LCD驱动芯片(CT675)的C51源代码」· C语言 代码 · 共 22 行

#include "INC\SYS_DECLARE.H"
#include "INC\SYS_GLOBAL.H"

void Timer0ISR(void) interrupt 1
{
    TL0 = TIMER0_INIT_VALUE & 0xFF;
    TH0 = TIMER0_INIT_VALUE >> 8;

    gfScanKey = TRUE;
    if(gbTimer20mS)             gbTimer20mS--;
    if(gbModeDetectTimer)       gbModeDetectTimer -= 20;

    if(gbTimer1Sec)
        gbTimer1Sec--;
    else
    {
        if(gbOsdPromptTimer)    gbOsdPromptTimer--;

        gbTimer1Sec = 50;
    }
}