STC micro STC8A8K64D4 Series - Page 573

STC8A8K64D4 Series Manual
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#define PWM0T1H (*(unsigned char volatile xdata *)0xFF10)
#define PWM0T1L (*(unsigned char volatile xdata *)0xFF11)
#define PWM0T2H (*(unsigned char volatile xdata *)0xFF12)
#define PWM0T2 (*(unsigned int volatile xdata *)0xFF12)
#define PWM0T2L (*(unsigned char volatile xdata *)0xFF13)
#define PWM0CR (*(unsigned char volatile xdata *)0xFF14)
#define PWM0HLD (*(unsigned char volatile xdata *)0xFF15)
sfr P0M1 = 0x93;
sfr P0M0 = 0x94;
sfr P1M1 = 0x91;
sfr P1M0 = 0x92;
sfr P2M1 = 0x95;
sfr P2M0 = 0x96;
sfr P3M1 = 0xb1;
sfr P3M0 = 0xb2;
sfr P4M1 = 0xb3;
sfr P4M0 = 0xb4;
sfr P5M1 = 0xc9;
sfr P5M0 = 0xca;
void PWM0_Isr() interrupt 22
{
static bit dir = 1;
static int val = 0;
if (PWMCFG & 0x08)
{
PWMCFG &= ~0x08; //Clear interrupt flag
if (dir)
{
val++;
if (val >= CYCLE) dir = 0;
}
else
{
val--;
if (val <= 1) dir = 1;
}
_push_(P_SW2);
P_SW2 |= 0x80;
PWM0T2 = val;
_pop_(P_SW2);
}
}
void main()
{
P0M0 = 0x00;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
P4M0 = 0x00;
P4M1 = 0x00;