As a professional frequency control component manufacturer, Taiwan Crystal Technology has been committed to the research and development, design, production and sales of DIP and SMD quartz crystal products since its establishment in December 1983. It specializes in the production of high-precision, high-quality quartz crystal resonators (Crystals), oscillators (Oscillators), automotive electronics (Automotive Electronics), timing modules (Timing Modules), power management components (Power Management Components) and sapphire wafers (Sapphire Wafer) and other six series of products.
My board is STM32F103VE. I want to use the timer to count external pulses. Unfortunately, all the default ETRs of the IO are occupied by the peripherals of the board (sweating). I tried two methods:1 ...
[code]void DelayUsx2(unsigned int t) { while(--t); }[/code]This is the code I wrote, but after setting the frequency of KEIL to 12Mhz, every time t decreases by 1, the time consumed is 8us. Its assemb...
Comparison of DSP Processors and General-Purpose Processors Consider an example of digital signal processing, such as a finite impulse response (FIR) filter. In mathematical terms, an FIR filter is a ...
1 ALSA audio tools under Linux
ALSA (Advanced Linux Sound Architecture) is the mainstream audio structure on Linux
https://www.alsa-project.org/wiki/Main_PageCommonly used ALSA tools include:arecord: ...
How to cleverly measure the power consumption current
of electronic watches The power consumption current of electronic watches is an important quality indicator of electronic watc...[Details]
Predictive control is a control strategy proposed based on the actual application needs of industry. So far, it has achieved great success in theoretical research, industrial application and co...[Details]
0 Introduction
Usually,
a bandpass signal
can be represented by the corresponding baseband signal. For example, if Sm is used to represent a real bandpass signal, the bandpass signal can ...[Details]
Introduce several methods of implementing I/V conversion:
Voltage Divider
Method
Using the voltage divider circuit shown in Figure 1, current is passed into the resistor. The v...[Details]
Modifying a double potentiometer with a band switch
Use a KCV-11W2D ceramic band switch and 20 resistors, connect them according to the diagram, and you can assemble a practical do...[Details]
The principle is shown in Figure 4-40 (f). The voltage drop on the resistor RF is used to drive the light-emitting diode LED. It is suitable for electric heating products with resistance wire...[Details]
The efficiency of the cascode structure
power amplifier
can be improved by using
cascode
inductors. Here, a design scheme for a 5.25GHz WLAN power amplifier that uses cascode inductors t...[Details]
introduction
There is no substitute for good planning, design, and filtering steps when designing power converters to meet electromagnetic compatibility (EMC) requirements. It is often not possible...[Details]
introduction
The current active power filter usually adopts the harmonic current detection method based on the instantaneous reactive power theory. The IP-IQ algorithm requires the use of a sine-co...[Details]
After long-term use of the sealed double-connected capacitor, the positioning card in the front wall plate is easy to wear, as shown in Figure 5-7 (a), which will cause the rotation angle of ...[Details]
The method is as follows:
refer to Figure 5-9 (C), saw the lower edge of the capacitor's compression groove around, carefully remove the aluminum shell, carefully unfold the two rol...[Details]
It is a common phenomenon that the resistance range of the multimeter is burned out due to the wrong range selection.
Take the R×1 range of the U-10 multimeter as an example, and its si...[Details]
Take several ballpoint pen refills that have run out of ink, cut off their ball heads, file them flat, and clean them with gasoline, as shown in Figure 6-19 (a). Then use tin to solder them t...[Details]
How to use voltage regulator to change voltage higher than 250V to 220V
When the input voltage is slightly higher than the rated voltage of the voltage regulator, but less than...[Details]
stm32/stm8
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