ORG 0000h SJMP START ; ;Interrupt Vector Table ORG 0003h LCALL INT0_ISR RETI ORG 000Bh LCALL T0_ISR RETI ORG 0013h LCALL INT1_ISR RETI ORG 001Bh LCALL T1_ISR RETI ORG 0023h LCALL UART_ISR RETI ; ORG 0030h START: ; Initialization ; ; Task ; DONE: SJMP DONE ; INT0_ISR: ; Service Routine for External Interrupt 0 RET T0_ISR: ; Service Routine for Timer 0 Interrupt RET INT1_ISR: ; Service Routine for External Interrupt 1 RET T1_ISR: ; Service Routine for Timer 1 Interrupt RET UART_ISR: ; Service Routine for UART Interrupt RET ; END
// Template for SDCC 8051 C program
#include <8051.h> // Defining SFRs
// ISR Prototypes ===================================================
void INT0_ISR(void) __interrupt (0); // ISR for External Interrupt 0
void T0_ISR(void) __interrupt (1); // ISR for Timer0/Counter0 Overflow Interrupt
void INT1_ISR(void) __interrupt (2); // ISR for External Interrupt 1
void T1_ISR(void) __interrupt (3); // ISR for Timer1/Counter1 Overflow Interrupt
void UART_ISR(void) __interrupt (4); // ISR for UART Interrupt
void main(void)
{
}
void INT0_ISR(void) __interrupt (0)
{}
void T0_ISR(void) __interrupt (1)
{}
void INT1_ISR(void) __interrupt (2)
{}
void T1_ISR(void) __interrupt (3)
{}
void UART_ISR(void) __interrupt (4)
{}
CHECK_BUTTON: JB P3.2,CBRET ; Task for button pressed WAIT_BUTTON_RELEASE: JNB P3.2,WAIT_BUTTON_RELEASE CBRET: RET
WAIT_BUTTON: JB P3.2,WAIT_BUTTON WAIT_RELEASE: JNB P3.2,WAIT_RELEASE RET
