CC2640R2F GPTimer的使用

梦与远方

Other Parts Discussed in Thread: CC2650, CC2640R2F

您好，参考例程，请问hTimer = GPTimerCC26XX_open(CC2650_GPTIMER0A, &params)中，CC2650_GPTIMER0A是什么？取值范围为0-7吗？我填了一个7，提示Error[Li005]: no definition for "GPTimerCC26XX_config" [referenced from GPTimerCC26XX.orm3(drivers_cc26x0r2.arm3)]

5 年多前

0 Viki Shi 5 年多前

TI__Guru**** 188340 points

/*!
 *  @brief  GPTimer26XX Hardware attributes
 *
 *  These fields are used by the driver to set up underlying GPTimer
 *  driver statically. A sample structure is shown below:
 *
 *  @code
 *  // GPTimer hardware attributes, one per timer unit (Timer 0A, 0B, 1A, 1B..)
 *  const GPTimerCC26XX_HWAttrs gptimerCC26xxHWAttrs[CC2650_GPTIMERPARTSCOUNT] = {
 *    {.baseAddr = GPT0_BASE, .intNum = INT_TIMER0A, .powerMngrId = PERIPH_GPT0, .pinMux = GPT_PIN_0A, },
 *    {.baseAddr = GPT0_BASE, .intNum = INT_TIMER0B, .powerMngrId = PERIPH_GPT0, .pinMux = GPT_PIN_0B, },
 *    {.baseAddr = GPT1_BASE, .intNum = INT_TIMER1A, .powerMngrId = PERIPH_GPT1, .pinMux = GPT_PIN_1A, },
 *    {.baseAddr = GPT1_BASE, .intNum = INT_TIMER1B, .powerMngrId = PERIPH_GPT1, .pinMux = GPT_PIN_1B, },
 *    {.baseAddr = GPT2_BASE, .intNum = INT_TIMER2A, .powerMngrId = PERIPH_GPT2, .pinMux = GPT_PIN_2A, },
 *    {.baseAddr = GPT2_BASE, .intNum = INT_TIMER2B, .powerMngrId = PERIPH_GPT2, .pinMux = GPT_PIN_2B, },
 *    {.baseAddr = GPT3_BASE, .intNum = INT_TIMER3A, .powerMngrId = PERIPH_GPT3, .pinMux = GPT_PIN_3A, },
 *    {.baseAddr = GPT3_BASE, .intNum = INT_TIMER3B, .powerMngrId = PERIPH_GPT3, .pinMux = GPT_PIN_3B, },
 *  };
 *  @endcode
 */

0 梦与远方 5 年多前回复 Viki Shi

Expert 1675 points

那我第一个参数应该传入什么呢？按例程传入CC2650_GPTIMER0A，会报错

0 Viki Shi 5 年多前回复梦与远方

TI__Guru**** 188340 points

CC2640R2F上使用应该是CC2640R2_LAUNCHXL_GPTIMER0A

0 梦与远方 5 年多前回复 Viki Shi

Expert 1675 points

CC2640R2_LAUNCHXL_GPTIMER0A提示我未定义，请问这个是包含在哪个头文件？

0 Viki Shi 5 年多前回复梦与远方

TI__Guru**** 188340 points

CC2640R2_LAUNCHXL.h，timer的使用建议参考PWMLED2这个例程

0 梦与远方 5 年多前回复 Viki Shi

Expert 1675 points

使用边沿计时器的话要参考哪个例程呢？

0 梦与远方 5 年多前回复 Viki Shi

Expert 1675 points

我添加了CC2640R2_LAUNCHXL.h，提示我no definition for "GPTimerCC26XX_config" [referenced from GPTimerCC26XX.orm3(drivers_cc26x0r2.arm3)]，GPTimerCC26XX_config是在哪个文件里定义的？

0 Viki Shi 5 年多前回复梦与远方

TI__Guru**** 188340 points

GPTimerCC26XX.h

0 梦与远方 5 年多前回复 Viki Shi

Expert 1675 points

我要是想使用IOID27与timer0的引脚联系起来，要怎么配置呢？

0 Viki Shi 5 年多前回复梦与远方

TI__Guru**** 188340 points

通过PINCC26XX_setMux();函数

这是我之前一个下降沿检测的例子，供参考：

/***** Includes *****/
/* Standard C Libraries */
#include <stdlib.h>
#include <stdio.h>

/* RTOS header files */
#include <ti/sysbios/BIOS.h>
#include <ti/sysbios/knl/Task.h>

/* TI Drivers */
#include <ti/drivers/rf/RF.h>
#include <ti/drivers/PIN.h>
#include <ti/drivers/pin/PINCC26XX.h>
#include <ti/drivers/timer/GPTimerCC26XX.h>

/* Driverlib Header files */
#include DeviceFamily_constructPath(driverlib/rf_prop_mailbox.h)

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

/***** Variable declarations *****/
/* Pin driver handle */
static PIN_Handle ledPinHandle;
static PIN_State ledPinState;

PIN_Config pinTable[] =
{
    IOID_0 | PIN_INPUT_EN | PIN_PULLUP | PIN_IRQ_NEGEDGE  ,
    PIN_TERMINATE
};

GPTimerCC26XX_Handle hTimer0A;
//static uint8_t counter = 0;

void timerCallback0A(GPTimerCC26XX_Handle handle, GPTimerCC26XX_IntMask interruptMask)
{
    printf("!\n");
}

/***** Function definitions *****/

void *mainThread(void *arg0)
{
    /* Open LED pins */
    ledPinHandle = PIN_open(&ledPinState, pinTable);
    if (ledPinHandle == NULL)
    {
        while(1);
    }

    GPTimerCC26XX_Params params0A;
    GPTimerCC26XX_Params_init(&params0A);
    params0A.width          = GPT_CONFIG_16BIT;
    params0A.mode           = GPT_MODE_EDGE_COUNT_UP;
    params0A.debugStallMode = GPTimerCC26XX_DEBUG_STALL_OFF;
    hTimer0A = GPTimerCC26XX_open(CC2640R2_LAUNCHXL_GPTIMER0A, &params0A);
    if(hTimer0A == NULL)
    {
        while(1);
    }

    GPTimerCC26XX_registerInterrupt(hTimer0A, timerCallback0A, GPT_INT_CAPTURE_MATCH);

    GPTimerCC26XX_PinMux pinMux = GPTimerCC26XX_getPinMux(hTimer0A);
    PINCC26XX_setMux(ledPinHandle, IOID_0, pinMux);

    GPTimerCC26XX_setCaptureEdge(hTimer0A, GPTimerCC26XX_NEG_EDGE);
    GPTimerCC26XX_setLoadValue(hTimer0A, 0xFFFFFF);
    GPTimerCC26XX_setMatchValue(hTimer0A, 1);
    GPTimerCC26XX_start(hTimer0A);

    while(1)
    {
        Task_sleep(BIOS_WAIT_FOREVER);
    }
}

0 梦与远方 5 年多前回复 Viki Shi

Expert 1675 points

您好，我参考您的代码进行配置，GPT使用是计时器输入捕获计时模式，上升沿输入捕获。如果我要读取时间的话是调用GPTimerCC26XX_getValue来获取时间对吧?

0 Viki Shi 5 年多前回复梦与远方

TI__Guru**** 188340 points

是的

0 Viki Shi 5 年多前回复 Viki Shi

TI__Guru**** 188340 points

把原来的代码改成input edge timing模式，并读取相应的寄存器值。改动很少，如下：

/***** Includes *****/
/* Standard C Libraries */
#include <stdlib.h>
#include <stdio.h>

/* RTOS header files */
#include <ti/sysbios/BIOS.h>
#include <ti/sysbios/knl/Task.h>

/* TI Drivers */
#include <ti/drivers/rf/RF.h>
#include <ti/drivers/PIN.h>
#include <ti/drivers/pin/PINCC26XX.h>
#include <ti/drivers/timer/GPTimerCC26XX.h>

/* Driverlib Header files */
#include DeviceFamily_constructPath(driverlib/rf_prop_mailbox.h)

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

/***** Variable declarations *****/
/* Pin driver handle */
static PIN_Handle ledPinHandle;
static PIN_State ledPinState;

PIN_Config pinTable[] =
{
    IOID_0 | PIN_INPUT_EN | PIN_PULLUP | PIN_IRQ_NEGEDGE  ,
    PIN_TERMINATE
};

GPTimerCC26XX_Handle hTimer0A;
//static uint8_t counter = 0;

void timerCallback0A(GPTimerCC26XX_Handle handle, GPTimerCC26XX_IntMask interruptMask)
{
    int i;
    i = GPTimerCC26XX_getValue(hTimer0A);
    printf("%d\n",i);
}

/***** Function definitions *****/

void *mainThread2(void *arg0)
{
    /* Open LED pins */
    ledPinHandle = PIN_open(&ledPinState, pinTable);
    if (ledPinHandle == NULL)
    {
        while(1);
    }

    GPTimerCC26XX_Params params0A;
    GPTimerCC26XX_Params_init(&params0A);
    params0A.width          = GPT_CONFIG_16BIT;
    params0A.mode           = GPT_MODE_EDGE_TIME;
    params0A.debugStallMode = GPTimerCC26XX_DEBUG_STALL_OFF;
    hTimer0A = GPTimerCC26XX_open(CC2640R2_LAUNCHXL_GPTIMER0A, &params0A);
    if(hTimer0A == NULL)
    {
        while(1);
    }

    GPTimerCC26XX_registerInterrupt(hTimer0A, timerCallback0A, GPT_INT_CAPTURE);

    GPTimerCC26XX_PinMux pinMux = GPTimerCC26XX_getPinMux(hTimer0A);
    PINCC26XX_setMux(ledPinHandle, IOID_0, pinMux);

    GPTimerCC26XX_setCaptureEdge(hTimer0A, GPTimerCC26XX_NEG_EDGE);
    GPTimerCC26XX_setLoadValue(hTimer0A, 0xFFFF);
   // GPTimerCC26XX_setMatchValue(hTimer0A, 1);
    GPTimerCC26XX_start(hTimer0A);

    while(1)
    {
        Task_sleep(BIOS_WAIT_FOREVER);
    }
}

还写了个裸机版的，供参考

#include <stdio.h>
#include <stddef.h>

/* Driver Header files */
#include <ti/drivers/PWM.h>
#include <C:\ti\simplelink_cc2640r2_sdk_4_30_00_08\source\ti\devices\cc26x0r2\inc\hw_gpt.h>
#include <C:\ti\simplelink_cc2640r2_sdk_4_30_00_08\source\ti\devices\cc26x0r2\inc\hw_memmap.h>
#include <C:\ti\simplelink_cc2640r2_sdk_4_30_00_08\source\ti\drivers\pin\PINCC26XX.h>
#include <C:\ti\simplelink_cc2640r2_sdk_4_30_00_08\source\ti\drivers\power\PowerCC26XX.h>

static PIN_Handle Pinhandle;
static PIN_State Pinstate;

PIN_Config Pintable[] = {
    IOID_0 | PIN_INPUT_EN | PIN_PULLUP | PIN_IRQ_BOTHEDGES   ,
    PIN_TERMINATE
};

void *mainThread3(void *arg0)
{
    unsigned int value;
    int j;

    Pinhandle = PIN_open(&Pinstate, Pintable);
        if (Pinhandle == NULL)
        {
            while (1);
        }

    PINCC26XX_setMux(Pinhandle,IOID_0, IOC_PORT_MCU_PORT_EVENT0);

    // Turn on PERIPH power domain and clock for GPT0
    Power_setDependency(PowerCC26XX_PERIPH_GPT0);
    //disable timer0A——CTL.TAEN
    *(volatile unsigned int *)0x4001000C = 0x0000;
    //setting the timer0 CFG register to act as a 16-bit timer
    *(volatile unsigned int *)0x40010000 = 0x0004;
    //Setting the TAMR register: TACM=1,TAMR=3
    *(volatile unsigned int *)0x40010004 = 0x0007;
    //Setting CFG register:TAEVENT 0-positive edge;1-negative edge;3-both edge
    *(volatile unsigned int *)0x4001000C = 0x0000;
    //Setting the load value-TAILR
    *(volatile unsigned int *)0x40010028 = 0xFFFF;
    //Setting the interrupt register-IMR.CAEMIS
    //*(volatile unsigned int *)0x40010018 = 0x0004;
    //Enable timer0A——CTL.TAEN
    *(volatile unsigned int *)0x4001000C = 0x0001;
    while(1)
    {
        //poll the MIS.CAECINT bit
        value = *(volatile unsigned int *)0x4001001C & 0x0004;
            if (value)
            {
                j = *(volatile unsigned int *)0x40010048;
                //clear the CTL.ICLR CAECINT flag
                *(volatile unsigned int *)0x40010024 = 0x0004;
                //read the TAR value
                printf("%d\n", j);
            }

    }

}

0 梦与远方 5 年多前回复 Viki Shi

Expert 1675 points

您好，我目前无法进入GPTimerClose（）函数。在实际测试中，GPTimerFlag=5的时候，程序并不会执行GPTimerClose（）;请问是哪里的问题？

uint8_t GPTimerFlag = 0;

void timerCallback0A（GPTimerCC26XX_Handle handle，GPTimerCC26XX_IntMask interruptMask）

{

GPTimerFlag = 5;//标志位，用于关闭GPTimer定时器

}

修改simple_Peripheral.c

static void SimplePeripheral_taskFxn(UArg a0,UArg a1)

{

.....

events = (Event_pend(syncEvent,Event_Id_NONE,SBP_ALL_EVENTS,ICALL_TIMEOUT_FOREVER) | GPTimerFlag);

if(events){

.....

if(events & GPTimerFlag){

GPTimerClose（）;

}

0 Viki Shi 5 年多前回复梦与远方

TI__Guru**** 188340 points

单步调试过没有？卡在哪一步？

0 梦与远方 5 年多前回复 Viki Shi

Expert 1675 points

if（events＆GPTimerFlag）{
GPTimerClose（）；
}
卡在这一句，if判断为0

0 Viki Shi 5 年多前回复梦与远方

TI__Guru**** 188340 points

凭上述信息难以判断。建议先调试GPTimer部分，如果没问题，再跟BLE功能组合调试。涉及到整个项目，很多时候是程序内部调度的问题，而不是功能模块的问题，不现场调难以定位

0 梦与远方 5 年多前回复 Viki Shi

Expert 1675 points

好的，另外就是您有event_post使用的参考例程吗？

0 Viki Shi 5 年多前回复梦与远方

TI__Guru**** 188340 points

只有文档，参考：dev.ti.com/.../synchronization.html

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CC2640R2F GPTimer的使用