STC micro STC8A8K64D4 Series - Page 460

STC8A8K64D4 Series Manual
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#include "intrins.h"
#define CMPEXCFG (*(unsigned char volatile xdata *)0xfeae)
sfr P_SW2 = 0xba;
sfr CMPCR1 = 0xe6;
sfr CMPCR2 = 0xe7;
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;
sfr P2M0 = 0x96;
sfr P2M1 = 0x95;
void delay ()
{
char i;
for (i=0; i<20; i++);
}
void main()
{
P0M0 = 0x00;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
P4M0 = 0x00;
P4M1 = 0x00;
P5M0 = 0x00;
P5M1 = 0x00;
unsigned char v;
P1M0 = 0x3f; //P1.5 ~ P1.0 are initialized to open-drain mode
P1M1 = 0x3f;
P1 = 0xff;
P_SW2 = 0x80;
CMPEXCFG = 0x00;
CMPEXCFG &= ~0x03; //P3.7 is CMP+ input pin
CMPEXCFG |= 0x04; //internal 1.19V reference voltage is CMP- input pin
P_SW2 = 0x00;