STC micro STC8A8K64D4 Series - Page 247

STC8A8K64D4 Series Manual
-
- 231 -
#define EX3 0x20
#define EX4 0x40
sbit P10 = P1^0;
void INT4_Isr() interrupt 16
{
P10 = !P10; //Test port
}
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;
INTCLKO = EX4; //Enable INT4 interrupt
EA = 1;
while (1);
}
Assembly code
;Operating frequency for test is 11.0592MHz
INTCLKO DATA 8FH
EX2 EQU 10H
EX3 EQU 20H
EX4 EQU 40H
P0M1 DATA 093H
P0M0 DATA 094H
P1M1 DATA 091H
P1M0 DATA 092H
P2M1 DATA 095H
P2M0 DATA 096H
P3M1 DATA 0B1H
P3M0 DATA 0B2H
P4M1 DATA 0B3H
P4M0 DATA 0B4H
P5M1 DATA 0C9H
P5M0 DATA 0CAH
ORG 0000H
LJMP MAIN
ORG 0083H
LJMP INT4ISR
ORG 0100H
INT4ISR:
CPL P1.0 ;Test port
RETI