[参考译文] CC1312R：如何将 RTC 通道1和2与 TI-RTOS7配合使用？

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Other Parts Discussed in Thread: SYSBIOS, SYSCONFIG

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz-group/sub-1-ghz/f/sub-1-ghz-forum/1158141/cc1312r-how-to-use-rtc-channel-1-and-2-with-ti-rtos7

器件型号：CC1312R
Thread 中讨论的其他器件：SysBIOS、 SysConfig

您好！

我有一个基于'old' TI-RTOS (而非7)的项目仍在开发中、该项目使用 RTOS 提供的挂钩来与 RTC CH1和 CH2硬件配合使用。

The below snippets show an example of using Channel 1, with Driverlib API calls to configure an RTC event at 4 seconds after boot.
First, in the application .cfg file a hook function is defined for Channel 1:
    var Timer = xdc.module('ti.sysbios.family.arm.cc26xx.Timer');
    Timer.funcHookCH1 = "&myHookCH1";
In main(), Channel 1 is first cleared, a compare (match) value of 4 seconds is set, the channel is enabled:
    AONRTCEventClear(AON_RTC_CH1);
    AONRTCCompareValueSet(AON_RTC_CH1, 0x40000);
    AONRTCChannelEnable(AON_RTC_CH1);
With the above, myHookCH1() will be called when the RTC reaches a count of 4 seconds. At that time, a new compare value can be written for the next interrupt that should occur for Channel 1.

有计划在项目的稍后阶段迁移到新的 TI-RTOS7、因此请向我提供一些信息、RTC CH1和 CH2如何与新的 TI-RTOS7配合使用？

此致、

Dimitar Devedzhiev

3 年多前

0 admin 3 年多前

TI__Guru**** 2540720 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

您好、Dimitar、

在 TI-RTOS7中、我建议您使用 tiposix 层来访问 RTC。尤其是、您应该使用 ClockP 模块来设置计时器和管理延迟。

下面是一个有关如何使用 ClockP 设置1秒周期性回调的示例、但您也可以调整参数以将其设置为一次性回调。

这只是空示例的修改版本，以使用 ClockP 而不是 sleep()来切换红色 LED。

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/*
 *  ======== empty.c ========
 */

/* For usleep() */
#include <unistd.h>
#include <stdint.h>
#include <stddef.h>

/* Driver Header files */
#include <ti/drivers/GPIO.h>
// #include <ti/drivers/I2C.h>
// #include <ti/drivers/SPI.h>
// #include <ti/drivers/Watchdog.h>

/* Driver configuration */
#include "ti_drivers_config.h"

#include <ti/drivers/dpl/ClockP.h>


void clkCallback(uintptr_t arg0){

    GPIO_toggle(CONFIG_GPIO_LED_0);
}



/*
 *  ======== mainThread ========
 */
void *mainThread(void *arg0)
{
    /* 1000 second delay */
    uint32_t time = 1000;

    ClockP_Struct clkStruct;
    ClockP_Params clkParams;
    ClockP_Handle clkHandle = NULL;

    ClockP_Params_init(&clkParams);

    clkParams.period = 100000; // 100k RTC ticks (10us each) = 1s
    clkParams.startFlag = true; // start clock immediately after instance is created

    clkHandle = ClockP_construct(&clkStruct, clkCallback, 0, &clkParams);

    /* Call driver init functions */
    GPIO_init();
    // I2C_init();
    // SPI_init();
    // Watchdog_init();

    /* Configure the LED pin */
    GPIO_setConfig(CONFIG_GPIO_LED_0, GPIO_CFG_OUT_STD | GPIO_CFG_OUT_LOW);

    /* Turn on user LED */
    GPIO_write(CONFIG_GPIO_LED_0, CONFIG_GPIO_LED_ON);

    while (1)
    {
        sleep(time);
    }
}

您可以在中找到有关 tiposix 调用的其他文档 /source/ti/drivers/dpl/ClockP.h

此致、

高斯图

0 admin 3 年多前

TI__Guru**** 2540720 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

您好、Fausto、

我不是在问如何使用时钟对象、而是在问 TI_RTOS7是否直接使用 RTC 通道1和通道2。

我正在使用 RTC CH1捕获来捕获外部事件的 RTC 时间、并使用 CH2自动比较加载功能来生成时间段、该时间段不会因 HWI 或 SWI 进入延迟而产生漂移(可能存在抖动、但不会漂移)。

之前版本的 TI-RTOS 提供了 ti.sysbios.family.arm.cc26xx.Timer 模块内的挂钩函数。

那么、我的问题是 RTC CH1和 CH2硬件如何与新的 TI-RTOS7一起使用、而不是与时钟对象一起使用？

此致、

Dimitar

0 admin 3 年多前

TI__Guru**** 2540720 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

您好、Dimitar、

很抱歉、我误解了您的问题。

您可以在 SysConfig 接口中找到 RTC 通道1和通道2的挂钩、如下所示：

实际上、如果您从文件"sdk_dir\kernel\tirtos7\packages/ti\sysBIOS\family\arm\cc26xx\Timer.h"中获取原始帖子中的片段、则该文档不精确、将在即将发布的下一个 SDK 6.30中更新为以下内容：

 * The below snippets show an example of using Channel 1, with Driverlib API
 * calls to configure an RTC event at 4 seconds after boot.
 *
 * With Syscfg open, the hook function for Channel 1 can be set to a user-defined
 * function under:
 * Clock->Other Dependencies->Clock Support->Other Dependencies->RTC Timer->
 * RTC Channel 1 function hook
 *
 * In main(), Channel 1 is first cleared, a compare (match) value of 4 seconds
 * is set, the channel is enabled:
 *
 * @code
 *    AONRTCEventClear(AON_RTC_CH1);
 *    AONRTCCompareValueSet(AON_RTC_CH1, 0x40000);
 *    AONRTCChannelEnable(AON_RTC_CH1);
 * @endcode

希望这对您有所帮助。

此致、

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[参考译文] CC1312R：如何将 RTC 通道1和2与 TI-RTOS7配合使用？