Reprinted from deyisupport [align=left][color=#000]In January 1979, Electronic Test published an article stating that a single test circuit could "perform all the standard DC tests required to thoroug...
My test board uses pxa270 as the main chip, which requires a 13M and a 32.768K crystal oscillator. The current situation is that the two crystal oscillators have no waveform output. There is no proble...
A fan remote control circuit, the power supply is 4.7V, the control part uses MD2722PB. The fan starts as soon as the power is turned on, and there is no response when it is manually or strictly contr...
A data type questionThe program is as follows: void display(void){int y;uchar code rel[]={0,1,2,3,4,5,6,7}; // digital tube selectionuchar code led[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f...
【JDPCB】Qisda is introducing smart factories in phases. Chairman Chen Qihong said yesterday (25th) that through high automation, order delivery can be accelerated. The current benefits have reached a...[Details]
For 80,000
ZTE
(000063.SZ) employees and more Chinese ICT (information and communication technology) industry practitioners, the news from across the ocean on the evening of April 16 kept t...[Details]
In the actual project development process, we often need to get the running time of a section of code. The usual method is to use an oscilloscope to measure it. This blog post will use SysTick to acc...[Details]
All relevant units:
In accordance with the relevant requirements of the provincial and municipal electric vehicle charging infrastructure construction work, in order to further standardize the...[Details]
Because the STM32 HAL library only has millisecond-level delay for HAl_Delay(), in order to achieve accurate microsecond-level delay, Systick has to be modified. However, since it is used internally ...[Details]
From last year to now, competition in the photovoltaic inverter industry has become increasingly fierce. In addition to the introduction of new products, various marketing and promotion methods hav...[Details]
Timing and protocol are two key points in digital system debugging, and they are also where logic analyzers can play their most valuable role. How can we use a logic analyzer to quickly complete wiri...[Details]
At the just concluded InfoComm 2018 exhibition, the two major brands, Zhongke Jiguang and China Hualu, both displayed three-color light source
laser TVs
. The outstanding color performance ...[Details]
Ouster LiDAR OS-1 (left) and OS-2 (center) Velodyne invented the modern 3D LiDAR scanner in the mid-2000s, but in recent years conventional wisdom has held that Velodyne’s design — 64 lasers mounted...[Details]
When STM32 uses JTMS (PA13) and JTCK (PA14) as normal I/O ports, add the following code before initialization (the order cannot be reversed): RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); G...[Details]
/* Unfortunately, it cannot generate a standard 38kHz frequency square wave, there is a little error*/ #include reg51.h #define uchar unsigned char #define uint unsigned int sbit Waveout=P1^0; //P...[Details]
The T3 timer (8-bit) of CC2530 requires understanding of T3CTL, T3CCTL0, T3CC0, T3CCTL1, and T3CC registers. Timer 3/4 is an 8-bit timer with timer/counter/PWM functions. Timer 2, also known as MAC t...[Details]
Table of contents: 1 Overview 2: Common interrupt functions 3: PWM output 1 Overview In development, timers are widely used, which can be simply summarized into three aspects: 1.1: Application of ...[Details]
As shown in the figure, the circuit is required to count and display the number of times the button is pressed. When the button is pressed once, the count value increases by 1 (it is required to accu...[Details]
Analogue and Mixed Signal
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