while (rt_device_read(serial, -1, ch, 2) != 2){ /* 阻塞等待接收信号量，等到信号量后再次...
目前hwtimer 模块提供的 rt_device_read 接口读取时间,存在精度损失问题。 其原因是,时间变量使用 float 类型,再换算成为整形的 秒和 微秒。 这导致了比如 1234.123456s 这样的时间,根本无法表达到其毫秒和微秒级别的精度。 是否可以考虑要运算时使用整形变量如 uint6
README.md README_ZH.md SConscript AT device 中文页 |英文页 1. 简介 AT device 软件包是由 RT-Thread AT 组件针对不同 AT 设备的移植文件和示例代码组成,目前支持的 AT 设备有:ESP8266、ESP32、M26、MC20、RW007、MW31、SIM800C、W60X 、SIM76XX、A9/A9G、BC26 、AIR720、ME3616、M6315、BC28、...
real-time command-read device resource Request format:GET URL: http(s)://api.heclouds.com/nbiot I only want to see examples!!! Url parameter Parameter NameFormatRequired?Description imeistringYesnbiot device identity code obj_idintYesobject id of device, equivalent to the data flow id ...
A read device (320) is disclosed for reading a record carrier (184) on which coded pictures (4TV, TV, TV/4) have been recorded. The recorded coded pictures represent pictures made up of a matrix of P rows of Q pixels (p). The dimension of the pixels in a horizontal direction is su...
traeger device for a microfilm - read device The broad band directional signal generator disclosed generates signals on a transmission line, which, controllably propagate in one direction on the line ... J Toriumi Shiro,J Yamagishi Seiichi 被引量: 0发表: 1976年 Device for selecting a specific ...
imei string 是 nbiot設備的身份碼 obj_id int 是 設備的objectid,對應到平台模型中為數據流id obj_inst_id int 否 nbiot設備object下具體一個instance的id ,對應到平台模型中數據點key值的一部分,選填 res_id int 否 nbiot設備的資源id,選填 timeout int 否 超時時間可選默認25秒,取值範圍[5, 40]返回...
Open source implementation of OPC UA (OPC Unified Architecture) aka IEC 62541 licensed under Mozilla Public License v2.0 - open62541/deps/README.md at master · sm-rtdevice/open62541
errorstring错误描述,为"succ"表示调用成功 dataarray-json接口调用成功之后返回的设备资源相关信息,见data描述表 data描述表 参数名称格式说明 obj_inst_idint对象实例id resarray-jsonres列表 res描述表 参数名称格式说明 res_idint资源id valobject读取资源的值,可以是bool,string,long,double等类型 ...
CONSTITUTION:In an ultraviolet ray erasing type read only memory device, a second pin is designated as a first optional terminal 100, and a 24th pin as a second optional terminal 101. The functions of the second pin and the 24th pin are decided by the voltage level of the high voltage ...