1. Fill in the blanks 1. When the input voltage of the hysteresis comparator gradually increases or decreases, the corresponding threshold voltage in the two cases is ___________ , and the transfer ch...
[i=s]This post was last edited by yilonglucky on 2019-1-18 09:40[/i] [align=left][font=宋体]Hello everyone, I am very happy to be able to participate in the evaluation of the "NXP Rapid IoT Prototyping ...
I downloaded the CC2541SDK from the official website, version: BLE-CC254x-1.5.0.16
Precompile:
INT_HEAP_LEN=3072
HALNODEBUG
OSAL_CBTIMER_NUM_TASKS=1
HAL_AES_DMA=TRUE
HAL_DMA=TRUE
xPOWER_SAVING
HAL_LCD...
I would like to ask, why is the decoupling capacitor at the power supply end of the IC usually 104 or 103? Can't it be larger (105, 106 or even larger)? Can't it be smaller pf level capacitor? Or are ...
Many netizens who are new to 51 MCUs have this question: What is AT89S51? Books and online tutorials all mention 8051, 89C51, etc.! Have you ever heard of 89S51? ! Here, beginners need to clarify a ...
[i=s]This post was last edited by Jacktang on 2019-3-22 07:56[/i] [size=4][color=#000000][backcolor=white]Pspice is now a circuit simulation tool integrated into Cadence, which can simulate the output...
LCD and controller interface circuit diagram: In the interface circuit design, since the LM320160CCW LCD display module is powered by 5 V, and the microcontroller is powered by 3.3 V, they cannot be ...[Details]
The monthly data of power batteries in October 2022 is released as follows. In terms of production: In October, my country's power battery production totaled 62.8GWh, a year-on-year increase of 150.1%...[Details]
We know that mobile phones equipped with Snapdragon 865 processors can upgrade the GPU driver independently. Previously, Xiaomi 10 and 10 Pro have undergone GPU upgrades. According to netizens...[Details]
The increase in mobile phone functions has placed higher demands on PCB design. With the advent of a new round of Bluetooth devices, cellular phones and the 3G era, engineers are paying more and ...[Details]
introduction
There are a large number of portable mobile electronic devices powered by two or three lithium batteries. Traditional buck-type charging management requires an input vol...[Details]
1. Basic GPIO configuration. Note that because the ordinary IO port is needed as the interrupt input port, the IO port multiplexing function is used. Therefore, the RCC_APB2Periph_AFIO clock must be ...[Details]
Is the AC motor brushless or brushless?
There are two types of AC motors: brushed AC motors and brushless DC motors (also called brushless AC motors). So an AC motor may have brushes or it may...[Details]
Oriental Automation has successively signed EPC general contracting contracts for the Tongli shared energy storage power station project and the Nice rooftop distributed photovoltaic project.
...[Details]
The rapid development of electric vehicles makes us wonder how long it will take for them to become reality in the future! Electric vehicles are developing rapidly, but it always feels like somethi...[Details]
In 1960, mankind produced the first laser. More than 40 years have passed, and lasers have shown a colorful development in terms of their types and performance. Since the advent of the first ruby la...[Details]
This paper focuses on the circuit design and related technical issues of realizing tire pressure monitoring system (TPMS). The TPMS system consists of a pressure sensor module and a central receiver. ...[Details]
Usage of using in Keil C51
The using keyword is often used in C51 interrupt programs, but many people do not understand what it means. Here is a repost to help everyone understand.
If registers ar...[Details]
Function of the circuit
The DC drift of a circuit often determines the performance of an electronic circuit. If certain compensation methods are adopted, the circuit performance...[Details]
How to calculate the positive duty cycle of such a narrow pulse on the screen? We increase the horizontal time base to 200us/div and observe its two cycles. Since the pulse is too narrow, it is not...[Details]
A single-phase to three-phase inverter is a power conversion device that converts single-phase AC power into three-phase AC power. It is widely used in industrial automation, power systems, househo...[Details]
Analog electronics
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