请问:怎样测量外部脉冲的宽度?
-
zlzzlz888
Re: 请问:怎样测量外部脉冲的宽度?
Postby zlzzlz888 » Mon Mar 09, 2020 4:22 pm
目前采用IO下降沿中断 + esp_get_time() 组合实现,但是发现数值误差有时很大,比如100us的脉冲,计算到数值是150us,不能满足系统要求,有没有定时器在引脚上的捕获功能,不用软件参与,直接在中断中读取脉冲宽度?或者其他满足要求的方法?
Who is online
Users browsing this forum: No registered users and 180 guests
Login
Newbies Start Here
Are you new to ESP8266?
Unsure what to do?
Dunno where to start?
Start right here!
Latest SDK
Documentation
Complete listing of the official ESP8266 related documentation release by ESPRESSIF!
Must read here!
- All times are UTC+08:00
- Top
- Delete all board cookies
About Us
Espressif Systems is a fabless semiconductor company providing cutting-edge low power WiFi SoCs and wireless solutions for wireless communications and Internet of Things applications. We are the manufacturer of ESP8266EX.