I modified the MDD layer of RIL. After dialing, the GPRS module returned CONNECT. At this time, I returned RIL_NOTIFY_CONNECT in the MDD layer, which was wrong. What should be returned at this time? I...
Yesterday, when I was debugging stm32, a wrong rom table component id error suddenly appeared when I downloaded the program. The pop-up dialog box showed no cortex_m device found in jtag chain. I trie...
I'm working on serial communication between PC and PDA recently. Now the PDA can send data and the PC can receive it. However, the PDA cannot receive data when the PC sends data. The same program code...
Functional description of the program of the industrial "safety" control system based on Hercules 1. Half-duplex RS485 communication of the slave 2. SPI port reads the switch input (sn65hvs882) 3. 4 G...
[i=s] This post was last edited by damiaa on 2017-10-16 09:28 [/i] [size=2] CH554 Review] The third article tests the timer [/size][size=2] [/size] [size=2] The timer is a necessity for microcontrolle...
In common electrical experiments and various motor tests, power is an important physical quantity, and the correct use of a power meter is a basic skill. In actual use, the range and wiring are the ke...
Calibrators are widely used in university experiments. Among them, there are two experiments in nuclear physics experiments in modern physics experiments (GM counter and β absorption) that require ...[Details]
In the early 1990s, portable phones were all the rage. With the rapid development of electronic technology, today's mobile phones can not only send emails and text messages, but also take photos, ch...[Details]
Although improper medical device product design is not always associated with medical device-related errors. Studies of users have shown that lack of adequate training accounts for 70% to 90% of suc...[Details]
1. Introduction
At present, with the continuous development of modern medical devices, especially electronic instruments directly connected to the human body, in addition to the increasingly high...[Details]
The latest C language tools allow you to quickly complete the design of algorithm-intensive applications even if you are not proficient in hardware development.
Hardware designers have b...[Details]
For more than 10 years, analog-to-digital converters (ADCs) have been widely used in industrial process control, medical instruments, communication systems, radar and other products as a booster of in...[Details]
Blood pressure is one of the important physiological parameters of the human body. Accurate measurement of it is conducive to early detection and identification of hypertension types, and to the pro...[Details]
Introduction
The market for wireless telemetry products is developing rapidly. Recently, the industry has also set off a revolution in wireless applications. Wireless telemetry technol...[Details]
Maximize instrument utilization and reduce
test times
Increasing the throughput of automated test systems can improve efficiency. Using off-the-shelf tools (COTS) such as multicore proc...[Details]
TD-SCDMA terminal conformance test includes three types of tests: RF index test (reference standard: 3GPPTS34.122), protocol signaling test (reference standard: 3GPPTS34.123) and other tests (refer...[Details]
Today, as network technology becomes more and more popular, industrial field instruments, data acquisition and control equipment are becoming more and more networked, and the combination of industr...[Details]
AD8302
Introduction
AD8302 is a monolithic integrated circuit for RF/IF amplitude and phase measurement from ADI. It is mainly composed of two precisely matched broadband logarithmic det...[Details]
When you hear the word digital TV, you may feel fresh and excited, but when it comes to what digital TV is and what it can bring us, you may still be confused. You must be very eager to understa...[Details]
From the moment AVS video was born, scientists and engineers have been working tirelessly to reduce the size of audio and video bitstreams. Various advanced video compression algorithms have emerge...[Details]
Preface
In the analog era, due to the unchanged specifications and relatively simple device connections, as well as users' low requirements for image quality, the relatively simple environment...[Details]
Embedded System
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