int_timers.c

基于cc1010的设计实例

/*****************************************************************************
 *                                                                           *
 *        **********                                                         *
 *       ************                                                        *
 *      ***        ***                                                       *
 *      ***   +++   ***                                                      *
 *      ***   + +   ***                                                      *
 *      ***   +                    CHIPCON CC1010 EXAMPLE PROGRAM            *
 *      ***   + +   ***                   TIMER INTERRUPTS                   *
 *      ***   +++   ***                                                      *
 *      ***       ***                                                        *
 *       ***********                                                         *
 *        *********                                                          *
 *                                                                           *
 *****************************************************************************
 * Demonstrates the CC1010 timer interrupt sources. Uses:                    *
 * - halConfigTimer01, halConfigTimer23 functions                            *
 * - INT_ENABLE, INT_PRIORITY, INT_GLOBAL_ENABLE, INT_SETFLAG macros         *
 * - TIMER0_RUN, TIMER1_RUN, TIMER2_RUN, TIMER3_RUN macros                   *
 * - ISR_TIMER0_ADJUST, ISR_TIMER1_ADJUST macros                             *
 *                                                                           *
 * The program cannot be run with single-step operation in the debugger,     *
 * because the debugger's use of interrupts interfere with the operation.    *
 *                                                                           *
 * The timers 0-3 are set up and run. Each of the 4 interrupt routines       *
 * lights up one of the LEDs.                                                *
 *****************************************************************************
 * Author:              ARR                                                  *
 *****************************************************************************
 * Revision history:                                                         *
 * 1.0  2002/08/29      First public release                                 *
 *                                                                           *
 * $Log: int_timers.c,v $
 * Revision 1.2  2002/11/18 10:55:32  kht
 * Added startup macros
 *
 * Revision 1.1  2002/10/11 15:06:45  tos
 * Initial version in CVS.
 *
 *                                                                           *
 ****************************************************************************/

#include <chipcon/hal.h>
#include <chipcon/cc1010eb.h>

// Timer value in XRAM
word xdata timer0_val;
word xdata timer1_val;

// Other global variables for the test
bool timer0_checked = FALSE;
bool timer1_checked = FALSE;
bool timer2_checked = FALSE;
bool timer3_checked = FALSE;

int main() {

    // Disable watchdog timer
    WDT_ENABLE(FALSE);

    // Startup macros for speed and low power consumption
    MEM_NO_WAIT_STATES();
    FLASH_SET_POWER_MODE(FLASH_STANDBY_BETWEEN_READS);

    // All I/Os are inputs after reset. Make I/Os connected to LEDs outputs
    RLED=YLED=GLED=BLED=LED_OFF;
    RLED_OE(TRUE); YLED_OE(TRUE); GLED_OE(TRUE); BLED_OE(TRUE);

    // Set up timer 0 as an interrupt timer w/ max period
    halConfigTimer01(TIMER0 | TIMER01_INT_TIMER, 0, CC1010EB_CLKFREQ, &timer0_val);

    // Setup timer 0 as an interrupt source
    INT_ENABLE(INUM_TIMER0, INT_ON);
    INT_PRIORITY(INUM_TIMER0, INT_HIGH);

    // Set up timer 1 as an interrupt timer w/ max period
    halConfigTimer01(TIMER1 | TIMER01_INT_TIMER, 0, CC1010EB_CLKFREQ, &timer1_val);

    // Setup timer 1 as an interrupt source
    INT_ENABLE(INUM_TIMER1, INT_ON);
    INT_PRIORITY(INUM_TIMER1, INT_LOW);

    // Set up timer 2 as an interrupt timer w/ max period
    halConfigTimer23(TIMER2 | TIMER23_INT_TIMER, 0, CC1010EB_CLKFREQ);

    // Setup timer 2 as an interrupt source
    INT_ENABLE(INUM_TIMER2, INT_ON);
    INT_PRIORITY(INUM_TIMER2, INT_HIGH);

    // Set up timer 3 as an interrupt timer w/ max period
    halConfigTimer23(TIMER3 | TIMER23_INT_TIMER, 0, CC1010EB_CLKFREQ);

    // Setup timer 3 as an interrupt source
    INT_ENABLE(INUM_TIMER3, INT_ON);
    INT_PRIORITY(INUM_TIMER3, INT_LOW);

    // Turn on interrupts
    INT_GLOBAL_ENABLE(INT_ON);

    // Test timer 0 interrupt
    TIMER0_RUN(TRUE);
    while(!timer0_checked);
    TIMER0_RUN(FALSE);

    // Test timer 1 interrupt
    TIMER1_RUN(TRUE);
    while(!timer1_checked);
    TIMER1_RUN(FALSE);

    // Test timer 2 interrupt
    TIMER2_RUN(TRUE);
    while(!timer2_checked);
    TIMER2_RUN(FALSE);

    // Test timer 3 interrupt
    TIMER3_RUN(TRUE);
    while(!timer3_checked);
    TIMER3_RUN(FALSE);

    // Infinite loop
    while(1);
}

// ISR (interrupt service routine) for timer 0, priority 2
// The interrupt is cleared by hardware
void isr_timer0() interrupt INUM_TIMER0 {
    ISR_TIMER0_ADJUST(timer0_val);
    BLED=LED_ON;
    timer0_checked = TRUE;
} //end isr_timer0()

// ISR (interrupt service routine) for timer 1, priority 4
// The interrupt is cleared by hardware
void isr_timer1() interrupt INUM_TIMER1 {
    ISR_TIMER1_ADJUST(timer1_val);
    GLED=LED_ON;
    timer1_checked = TRUE;
} //end isr_timer1()

// ISR (interrupt service routine) for timer 2, priority 8
// The interrupt must be cleared by software
void isr_timer2() interrupt INUM_TIMER2 {
    INT_SETFLAG(INUM_TIMER2, INT_CLR);
    YLED=LED_ON;
    timer2_checked = TRUE;
} //end isr_timer2()

// ISR (interrupt service routine) for timer 3, priority 10
// The interrupt must be cleared by software
void isr_timer3() interrupt INUM_TIMER3 {
    INT_SETFLAG(INUM_TIMER3, INT_CLR);
    RLED=LED_ON;
    timer3_checked = TRUE;
} //end isr_timer3()