C6416_TIMER.rar_6416定时器_C6416_c6416 timer

/********************************************************************** filename: timer.c designer: date: 2009/07/29 ***********************************************************************/ #include <stdio.h> #include <csl.h> #include <csl_timer.h> #include <csl_irq.h> #include <csl_emifb.h> static TIMER_Handle hTimer0; static TIMER_Handle hTimer1; static TIMER_Handle hTimer2; static Uint32 TimerEventId0; static Uint32 TimerEventId1; static Uint32 TimerEventId2; static int cnt = 0; Uint32 count; Uint32 adder = 0; Uint32 adder1 = 0; Uint32 adder2 = 0; Uint32 adder3 = 0; Uint32 led_flag = 0; volatile unsigned char* LED = (volatile unsigned char *) 0x60000010; //Timer control register (CTL) static Uint32 TimerControl = TIMER_CTL_RMK ( TIMER_CTL_SPND_EMUSTOP, TIMER_CTL_INVINP_NO, // TINP inverter control(INVINP) TIMER_CTL_CLKSRC_CPUOVR8, // Timer input clock source (CLKSRC) TIMER_CTL_CP_PULSE, // Clock/pulse mode(CP) TIMER_CTL_HLD_YES, // Hold(HLD) TIMER_CTL_GO_NO, // Go bit(GO)- // resets & starts timer counter TIMER_CTL_PWID_ONE, // Pulse width(PWID)- // used only in pulse mode TIMER_CTL_DATOUT_0, // Data output (DATOUT) TIMER_CTL_INVOUT_NO, // TOUT inverter control (INVOUT) TIMER_CTL_FUNC_GPIO // Function of TOUT pin(FUNC) ); static EMIFB_Config MyEmifbConfig = { EMIFB_GBLCTL_RMK ( EMIFB_GBLCTL_EK2RATE_FULLCLK, //1 X EMIF input clock EMIFB_GBLCTL_EK2HZ_CLK, //eclkout2 continue output during hold EMIFB_GBLCTL_EK2EN_ENABLE, //eclkout2 enable output EMIFB_GBLCTL_BRMODE_MRSTATUS, //bus request is memory access or refresh pending/in progress EMIFB_GBLCTL_NOHOLD_ENABLE, EMIFB_GBLCTL_EK1HZ_CLK, //eclkout1 continue output during hold EMIFB_GBLCTL_EK1EN_ENABLE //eclkout1 enable output ), 0x1120c301, 0x22a28a22, 0x22a28a22, 0x22a28a22, EMIFB_SDCTL_DEFAULT, EMIFB_SDTIM_DEFAULT, EMIFB_SDEXT_DEFAULT, 0x00000002, 0x00000002, 0x00000002, 0x00000002 }; void main(void); void TimerEventHandler(void); extern far void vectors(); void main(void) { TIMER_Config myTimConfig; //Initialise CSL CSL_init(); //主浬EMIFB EMIFB_config(&MyEmifbConfig); //Open TIMER1 device, and reset it to power-on default state hTimer0 = TIMER_open(TIMER_DEV0, TIMER_OPEN_RESET); hTimer1 = TIMER_open(TIMER_DEV1, TIMER_OPEN_RESET); hTimer2 = TIMER_open(TIMER_DEV2, TIMER_OPEN_RESET); // hTimer2 = TIMER_open(TIMER_DEV2, TIMER_OPEN_RESET); //Obtain the event ID for the timer device TimerEventId0 = TIMER_getEventId(hTimer0); TimerEventId1 = TIMER_getEventId(hTimer1); TimerEventId2 = TIMER_getEventId(hTimer2); //Point to the IRQ vector table IRQ_setVecs(vectors); //Enable NMI interrupt IRQ_nmiEnable(); //Map TIMER events to physical interrupt number IRQ_map(TimerEventId1, 14); IRQ_map(TimerEventId0,13); IRQ_map(TimerEventId2,15); //Reset the timer events IRQ_reset(TimerEventId1); IRQ_reset(TimerEventId0); IRQ_reset(TimerEventId2); //---------Configure the timer devices--------- //Start count value at zero myTimConfig.cnt = 0x0; //Use predefined control value */ myTimConfig.ctl = TimerControl; //Set period myTimConfig.prd = 125000000; TIMER_config(hTimer1, &myTimConfig); TIMER_config(hTimer0, &myTimConfig); TIMER_config(hTimer2, &myTimConfig); //Enable the timer events(events are disabled while resetting) IRQ_enable(TimerEventId0); IRQ_enable(TimerEventId1); IRQ_enable(TimerEventId2); //Start the timers TIMER_start(hTimer0); TIMER_start(hTimer1); TIMER_start(hTimer2); //Globally enable interrupts IRQ_globalEnable(); //Waiting for interrupt for(;;) { adder++; } } void TimerEventHandler(void) { //Process timer event here cnt++; count = TIMER_getCount(hTimer0); } interrupt void c_int13(void) { // TimerEventHandler(); if(led_flag == 0) { *LED = 0x01; led_flag = 1; } else { *LED = 0x02; led_flag = 0; } adder1++; return; } interrupt void c_int14(void) { adder2++; return; } interrupt void c_int15(void) { adder3++; return; }