STC micro STC8A8K64D4 Series - Page 319

STC8A8K64D4 Series Manual
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sfr P5M0 = 0xca;
sbit P10 = P1^0;
void TM0_Isr() interrupt 1
{
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;
TMOD = 0x04; //External counting mode
TL0 = 0xff;
TH0 = 0xff;
TR0 = 1; //Start timer
ET0 = 1; //Enable timer interrupt
EA = 1;
while (1);
}
Assembly code
;Operating frequency for test is 11.0592MHz
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 000BH
LJMP TM0ISR
ORG 0100H
TM0ISR: