[参考译文] 如何在 ti_drivers_config 中将 LED&#39状态更改为低电平有效？

您好！

您是否已尝试在 SysConfig 中将"Initial Output State"设置为低电平？

此致、

Arthur

您好 Arthur、

我已经尝试过、LED 开始在开启状态下工作。 但我希望它们从启动状态开始并使用 GPIO_WRITE 函数更改它们的状态。

在我想使用命令更改状态时顺便说一句  GPIO_WRITE (CONFIG_GPIO_LED_RED、CONFIG_GPIO_LED_ON)；  LED 熄灭。

此外、我在 SysConfig 中尝试了反转选项、但不适合我的使用。

此致、

Veli Can

尊敬的 Veli：

您能演示一下电路板上的 LED 是如何布线的吗？

此致、

Arthur

Arthur、您好！

就像这样。 RGB_R 为 DIO38、RGB_B 为 DIO39、RGB_G 为 DIO40。

此致、

Veli Can

您好！

我看到、根据 CC1312R 数据表的表7.1、引脚38、39和40实际上表示 DIO_25、DIO_26和 DIO_27。
顺便说一下、我认为 LED 的电流吸收太高了。

该器件的技术参考手册(表13-2)指出这些引脚可驱动的最大电流为4mA。

如果要尝试将引脚初始化为高电平、此处是对空项目的修改。

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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"

/*
 *  ======== mainThread ========
 */
void *mainThread(void *arg0)
{
    /* 1 second delay */
    uint32_t time = 1;

    /* 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);
        //GPIO_toggle(CONFIG_GPIO_LED_0);
    }
}

包含以下 SysConfig：

您会发现该引脚以高电平状态启动。

此致、

Arthur