I was recently working on a program that uses a key to control PWM. I found that once the interrupt key scanning program module was added, the key would not work. However, compiling the interrupt key ...
[b]Table of Contents:[/b] Preface Common Symbols Chapter 1 Semiconductor Diodes and Transistors 1.1 Basic Knowledge Points 1.2 Basic Basis for Analysis and Calculation 1.3 Detailed Explanation of the ...
The serial port of the 559 board I have cannot receive (I plan to transplant the ISD function). I suspect it is a problem with the board. A few days ago, I posted a thread "Urgent need a program for C...
Due to design requirements, I studied the CAN of F28m35 and conducted relevant tests. There is no problem in sending and receiving data in the internal loopback test mode, but in the external test, th...
PB7 is the 89th pin of LM3S9B96. The data sheet says that it can be used as GPIO or NMI. However, after I configured it as GPIO input and gave it a high level, the voltage collected in the program was...
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]
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]
Today's portable medical devices allow patients to diagnose and treat themselves, move around freely, and even use the devices when they are out and about. To achieve the "easy to carry" feature, po...[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]
This article introduces a miniature home electrocardiograph. The instrument has powerful functions: display monitoring, storage, playback, printing, record management, power alarm, telephone or Intern...[Details]
Introduction: Design of automated test systems
Challenges
To ensure the quality and reliability of products delivered to customers, test managers and engineers use automated test system...[Details]
In the development of high-stability lasers, real-time monitoring of the working state of the laser is an issue that needs to be focused on. This system realizes the high-stability laser temperatur...[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]
Adding "intelligence" to measurement systems is becoming more common as 8-bit microcontrollers are inexpensive, widely available, and can be programmed using today's common high-level languages, su...[Details]
A correct circuit design cannot be manufactured 100% correctly when it is taken to the factory for manufacturing. It will always be affected by various uncertainties, such as deviations in manufact...[Details]
Most
embedded
systems are powered from a 48V backplane. This voltage is typically stepped down to a lower intermediate bus voltage of 24V, 12V, or 5V to power the circuit board racks withi...[Details]
TMS320C62X is a new generation of high-performance fixed-point digital signal processor (
DSP
) chip
from Texas Instruments (
TI
). The software design problem based on
DSP
is to use...[Details]
1. Basic circuit characteristics of power amplifier
The basic circuit of the complementary symmetrical OTL power amplifier is shown in Figure ①. Among them: C1 is the signal input coupling ele...[Details]
At present, TPMS (tire pressure monitoring system) is mainly divided into two types, one is indirect type and the other is direct type. The direct TPMS system has been affected by its poor alarm ac...[Details]
Abstract: This paper introduces the controller, interface, display principle and driving method of the handheld computer LCD display based on the SA1110 microprocessor. Combined with the HPC projec...[Details]