In msp430f149, the xin pin and xout pin are connected to the 8M crystal oscillator, but the 8M crystal oscillator cannot vibrate.
The procedure is like this
#include msp430x14x.h
void main(void) { uns...
Timer event (adding steps) 1. #define SAMPLEAPP_Timeing_MSG_DOOR 0xD1DE //#define SAMPLEAPP_Timeing_MSG_DOORTIMEOUT 5000 added by myself 2. Add this in the task processing function if (events & SAMPLE...
micro2440 timer interrupt, use timer 1, the corresponding port has no output. The following is the program segment //Interrupt IST DWORD TIMER_IST(LPVOID lpParameter) {DWORD dwRes = 0; BOOL bRes = 1; ...
One of the problems I encountered here is that I don't know how to determine whether a dll has been loaded by the system. My own idea here is: 1. Print the serial port debugging information. If the in...
I have a handheld device running WINCE. After turning on the GPRS module, I can browse the web. Now I want to use this GPRS module to send and receive information. What else do I need to do? Are there...
External interrupts can enter the interrupt program by sending a pulse to the I/O port. Timer interrupts can enter the timer interrupt program when the time is up. I would like to ask what kind of tri...
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
Capacitors
are basic components in various electronic devices and are widely used for bypassing, coupling,
filtering
, tuning, etc. in electronic circuits. However, to use capacitors,...[Details]
With the widespread application of new services and technologies in the communications industry, the scale and capacity of operators' network construction are getting larger and larger, and the ris...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
introduction
Steam turbines are driven by high-temperature and high-pressure steam generated by boilers to run at high speed. They are key power equipment in thermal power plants. The emergenc...[Details]
As the global LED market demand continues to increase, my country's LED industry will face huge opportunities in the future. However, the core LED technology and patents are basically monopolized b...[Details]
LED is now known as the fourth generation of light sources. High-power LED has many advantages over traditional light sources in outdoor lighting.
1 LED lamps have high light efficiency
C...[Details]
This article focuses on closing the feedback loop of an isolated power supply using a TL431 shunt regulator. The article discusses a method to extend the bandwidth of the power supply control loop ...[Details]
Designing low power circuits while achieving acceptable performance is a difficult task. Doing so in
the RF
bands increases the challenge dramatically. Today, nearly everything has wireless...[Details]
1 Introduction
The stepper motor is an actuator of an open-loop servo motion system, which is controlled in a pulse mode and outputs angular displacement. Compared with AC servo motors and DC servo ...[Details]
UDN2916LB is a two-phase stepper motor bipolar driver integrated circuit launched by SANKEN. It can drive dual-winding bipolar stepper motors and is particularly suitable for controlling dual-step ...[Details]
With the rapid development of the IT industry, the demand for small DC cooling fans with PWM control (hereinafter referred to as fans) used in electronic products is increasing. This type of DC fan...[Details]
Microcontroller MCU
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