CC1310 硬件定时（高速）不准，求解决方案

#include <stdlib.h>#include <xdc/std.h>#include <xdc/runtime/System.h>

#include <ti/sysbios/BIOS.h>#include <ti/sysbios/knl/Task.h>#include <ti/sysbios/knl/Mailbox.h>#include <ti/sysbios/knl/Event.h>

/* Drivers */#include <ti/drivers/rf/RF.h>#include <ti/drivers/PIN.h>#include <driverlib/timer.h>#include <ti/drivers/Power.h>#include <ti/drivers/power/PowerCC26XX.h>

/* Board Header files */#include "Board.h"

PIN_Handle ledPinHandle;PIN_State ledPinState;

#define TASK_STACK_SIZE 1024#define TASK_PRIORITY   2

Hwi_Struct timerHwi;

void waitingTaskFunction(UArg arg0, UArg arg1);

static Task_Params waitingTaskParams;Task_Struct waitingTask;static uint8_t waitingTaskStack[TASK_STACK_SIZE];

void interruptTimerA(UArg arg0){  uint32_t status = TimerIntStatus(GPT0_BASE, true);  PIN_setOutputValue(ledPinHandle, Board_LED1,1);

  if (TIMER_TIMA_TIMEOUT & status) {    TimerIntClear(GPT0_BASE, TIMER_TIMA_TIMEOUT);  }

  PIN_setOutputValue(ledPinHandle, Board_LED1,0);}

void timerInit(void){  /* Switches the peripheral power domain on */  Power_setDependency(PowerCC26XX_PERIPH_GPT0);

  /* Prevents the controller from going to standby */  Power_setConstraint(PowerCC26XX_SB_DISALLOW);

  // register ISR and enable hardware interrupt for timer  Hwi_Params params;  Hwi_Params_init(&params);  params.enableInt = TRUE;  Hwi_construct(&timerHwi, INT_GPT0A, &interruptTimerA, &params, NULL);

  /* Configure the timer hardware */  TimerDisable(GPT0_BASE, TIMER_A);  TimerConfigure(GPT0_BASE, TIMER_CFG_SPLIT_PAIR | TIMER_CFG_A_PERIODIC | TIMER_CFG_B_PERIODIC);  TimerPrescaleSet(GPT0_BASE, TIMER_A, 9); // prescaler is 256 – 187.5 kHz

  TimerLoadSet(GPT0_BASE, TIMER_A, 100); // a random number

  TimerIntClear(GPT0_BASE, TIMER_TIMA_TIMEOUT);  TimerIntEnable(GPT0_BASE, TIMER_TIMA_TIMEOUT);  TimerEnable(GPT0_BASE, TIMER_A);}

void WaitingTask_init(void){  Task_Params_init(&waitingTaskParams);  waitingTaskParams.stackSize = TASK_STACK_SIZE;  waitingTaskParams.priority = TASK_PRIORITY;  waitingTaskParams.stack = &waitingTaskStack;  Task_construct(&waitingTask, waitingTaskFunction, &waitingTaskParams, NULL);}

void waitingTaskFunction(UArg arg0, UArg arg1){  timerInit();

  for (;;) {    Task_sleep(30 *1000 / Clock_tickPeriod);               // 30 ms wait    PIN_setOutputValue(ledPinHandle, Board_LED2, 1);    PIN_setOutputValue(ledPinHandle, Board_LED2, 0);  }}

int main(void){  Board_initGeneral();

  ledPinHandle = PIN_open(&ledPinState, BoardGpioInitTable);  if (!ledPinHandle) {    System_abort("Error initializing board LED pins\n");  }

  WaitingTask_init();  BIOS_start();  return (0);}

当定时时间设置在1ms以上时，程序运行正常；

当定时时间小于100us后，时间不准，时快时慢，而且不随设置变化，毫无规律；

请各位大侠帮忙！

多谢！