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@@ -17,7 +17,6 @@
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#include <rtthread.h>
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#include <rtdevice.h>
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-#define LED_PIN_NUM 57 /* LED PIN脚编号，查看驱动文件drv_gpio.c确定 */
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#define PWM_DEV_NAME "pwm3" /* PWM设备名称 */
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#define PWM_DEV_CHANNEL 4 /* PWM通道 */
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@@ -31,11 +30,6 @@ static int pwm_led_sample(int argc, char *argv[])
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dir = 1; /* PWM脉冲宽度值的增减方向 */
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pulse = 0; /* PWM脉冲宽度值，单位为纳秒ns */
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- /* 设置LED引脚脚模式为输出 */
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- rt_pin_mode(LED_PIN_NUM, PIN_MODE_OUTPUT);
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- /* 拉高LED引脚 */
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- rt_pin_write(LED_PIN_NUM, PIN_HIGH);
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-
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/* 查找设备 */
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pwm_dev = (struct rt_device_pwm *)rt_device_find(PWM_DEV_NAME);
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if (pwm_dev == RT_NULL)
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misonyo