LAUNCHXL-CC1310: CC1310 定时器参考代码

想使用下CC1310的定时器实现1ms的定时功能，有没有相关的例程？

Alex Zhang：

https://dev.ti.com/tirex/content/simplelink_cc13x0_sdk_4_20_02_07/docs/tidrivers/doxygen/html/index.html

您好，这里为您提供了定时器相关api函数说明，另外我这边为您提供了demo

您这边可以参考sdk目录下 ti drivers 里面的pwm工程参考定时器

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genyi liu：

/** Copyright (c) 2015-2019, Texas Instruments Incorporated* All rights reserved.** Redistribution and use in source and binary forms, with or without* modification, are permitted provided that the following conditions* are met:** *Redistributions of source code must retain the above copyright*notice, this list of conditions and the following disclaimer.** *Redistributions in binary form must reproduce the above copyright*notice, this list of conditions and the following disclaimer in the*documentation and/or other materials provided with the distribution.** *Neither the name of Texas Instruments Incorporated nor the names of*its contributors may be used to endorse or promote products derived*from this software without specific prior written permission.** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*//**======== pwmled2.c ========*/
/* For usleep() */
#include <unistd.h>
#include <stddef.h>/* Driver Header files */
#include <ti/drivers/PWM.h>/* Example/Board Header files */
#include "Board.h"/**======== mainThread ========*Task periodically increments the PWM duty for the on board LED.*/
void *mainThread(void *arg0)
{/* Period and duty in microseconds */uint16_tpwmPeriod = 3000;uint16_tduty = 0;uint16_tdutyInc = 100;/* Sleep time in microseconds */uint32_ttime = 50000;PWM_Handle pwm1 = NULL;PWM_Handle pwm2 = NULL;PWM_Params params;/* Call driver init functions. */PWM_init();PWM_Params_init(&params);params.dutyUnits = PWM_DUTY_US;params.dutyValue = 0;params.periodUnits = PWM_PERIOD_US;params.periodValue = pwmPeriod;pwm1 = PWM_open(Board_PWM0, &params);if (pwm1 == NULL) {/* Board_PWM0 did not open */while (1);}PWM_start(pwm1);pwm2 = PWM_open(Board_PWM1, &params);if (pwm2 == NULL) {/* Board_PWM0 did not open */while (1);}PWM_start(pwm2);/* Loop forever incrementing the PWM duty */while (1) {PWM_setDuty(pwm1, duty);PWM_setDuty(pwm2, duty);duty = (duty + dutyInc);if (duty == pwmPeriod || (!duty)) {dutyInc = - dutyInc;}usleep(time);}
}

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genyi liu：

没有看到定时器的相关操作！

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Alex Zhang：

您好，目前没有定时器的例程

https://dev.ti.com/tirex/explore/content/simplelink_cc13x0_sdk_4_20_01_03/docs/tidrivers/doxygen/html/_g_p_timer_c_c26_x_x_8h.html

您可以参考以上api函数文档以及以下代码

#include <unistd.h>
#include <stdint.h>
#include <stddef.h>/* Driver Header files */
#include <ti/drivers/GPIO.h>
#include <ti/drivers/Power.h>
#include <ti/drivers/power/PowerCC26XX.h>
#include <ti/drivers/timer/GPTimerCC26XX.h>#include <ti/sysbios/BIOS.h>
#include <ti/sysbios/knl/Task.h>#include <xdc/runtime/Types.h>/* Board Header file */
#include "Board.h"GPTimerCC26XX_Handle hTimer0A;void timerCallback0A(GPTimerCC26XX_Handle handle, GPTimerCC26XX_IntMask interruptMask)
{GPIO_toggle(Board_GPIO_LED0);
}/**======== mainThread ========*/
void *mainThread(void *arg0)
{GPIO_init();GPIO_setConfig(Board_GPIO_LED0, GPIO_CFG_OUT_STD | GPIO_CFG_OUT_LOW);GPTimerCC26XX_Params params0A;GPTimerCC26XX_Params_init(&params0A);params0A.width= GPT_CONFIG_16BIT;params0A.mode= GPT_MODE_PERIODIC;params0A.direction= GPTimerCC26XX_DIRECTION_UP;params0A.debugStallMode = GPTimerCC26XX_DEBUG_STALL_OFF;hTimer0A = GPTimerCC26XX_open(CC1310_LAUNCHXL_GPTIMER0A, &params0A);if(hTimer0A == NULL){while(1);}Power_setDependency(PowerCC26XX_XOSC_HF);Types_FreqHzfreq;BIOS_getCpuFreq(&freq);GPTimerCC26XX_Value loadVal = (freq.lo / 1000)*348 - 1;GPTimerCC26XX_setLoadValue(hTimer0A, loadVal);GPTimerCC26XX_registerInterrupt(hTimer0A, timerCallback0A, GPT_INT_TIMEOUT);GPTimerCC26XX_start(hTimer0A);while(1){Task_sleep(BIOS_WAIT_FOREVER);}
}

您可以测试一下以上内容，它每 348 毫秒发出一次中断：

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Alex Zhang：

https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1127555/cc1310-follow-up-question-to-need-solution-as-cc1310-timer-code-is-not-working?tisearch=e2e-sitesearch&keymatch=cc1310%2525252520timer#

希望这个相关链接也可以帮助到您这边，

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genyi liu：

好的

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Alex Zhang：

有问题随时论坛交流，希望可以帮助到您。