I have a 10-year-old laptop with an I5 CPU and 4G memory. I haven't used it for two or three years. The day before yesterday, I turned it on. It took about 10 minutes from booting to running. After bo...
Some time ago, I needed to test the charging of a lithium battery pack. The voltage of 18 lithium batteries in series can reach more than 70V. I used to have a GPC-6030D linear adjustable power supply...
Qorvo (Nasdaq: QRVO), a leading provider of innovative RF solutions that connect the world, today introduced the industry's smallest single-chip motor control and inverter solution for brushless DC (B...
1. Test
I just got the ATK-NEO-6M GPS module. I can't believe that this nearly 100 yuan thing is only 3cm in size. I downloaded relevant information online before. The first quick test must be done wi...
We have introduced the Raspberry Pi speed control before, but that was to control the speed of one wheel. As a result, the speed was sometimes slow and sometimes fast, but the error was acceptable. Th...
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According to foreign media reports, self-driving cars are not yet ready for large-scale commercial deployment, but as technology advances, most companies hope to develop multi-layered safety technolo...[Details]
On January 19, 2022, WPG Holdings, a leading semiconductor component distributor dedicated to the Asia-Pacific market, announced that its subsidiary WPI has launched an automotive PEPS solution bas...[Details]
13.C and assembly call each other
Create light.c:
Modify start.S:
Modify Makefile: add light.o
Finally, make succeeded and burning was successful.
Sim...[Details]
When doing IAP, it is divided into two parts The bootloader part starts at 0x8000000 The APP part is 0x08008000 The default setting cannot be written directly to the 0x08008000 part during debu...[Details]
China Energy Storage Network News:
From December 19 to 21, with the issuance and implementation of the inter-provincial and intra-provincial dispatching plans of the Central China Power Grid,...[Details]
1. Chat After reading the sdcc man page and datasheet, I wrote a few small programs using sdcc. I spent most of my time debugging code, so I decided to review UCOS during this time. Since this is the...[Details]
A high-frequency current probe is an electronic test instrument that can be used to measure current in high-frequency circuits. They are commonly used to diagnose and analyze problems in radio, com...[Details]
The mobile phone industry, which was once flourishing, has now been monopolized by giants. In the past decade, countless well-known brands have disappeared, such as Nokia, BlackBerry, LG, HTC, etc. I...[Details]
It is undeniable that the semiconductor and electronics industry is a very "fragile" industry. On the one hand, it is demanding on high precision, and a slight deviation can lead to a huge difference...[Details]
The difference between an absolute pressure measurement and an atmospheric pressure measurement is relatively easy to understand: In an atmospheric pressure measurement, the measured pressure is the ...[Details]
The time required for PIC18F4520 to run an instruction is equal to 4 machine cycles = 1us (4M crystal oscillator) Timer initial value setting: Take 5ms as an example TMR0H=(65536-5000)/256=0XEC; ...[Details]
Today, Xiaomi announced the launch of UWB technology, a new generation of connection technology with spatial positioning, which can give mobile phones and smart devices spatial perception capabilitie...[Details]
In 2020, Honor completed the layout of 5G mobile phones from high to low at the very beginning, including Honor V30 series, 30 series, Honor X10 series, and Honor Play4 series. What big moves w...[Details]
After multiple exposures, on the 22nd, vivo officially announced the world's first screen fingerprint phone - vivo X20 Plus screen fingerprint version, which is the vivo X20 Plus UD (Under Displa...[Details]
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