Driven by industrial informatization, production automation and dual carbon goals, TE Connectivity (hereinafter referred to as "TE") Home Appliances Division Qingdao Factory (hereinafter referred to a...
In daily SMT production, we occasionally encounter PCBA data with unconventional angles (non -0, 45, 90, 180, etc.). When we encounter such data, it is quite troublesome when we do panel assembly.Is t...
Last time, I posted a post about the inaccurate heart rate measurement of max30102. In the last question, the measured heart rate was between 100-500, the waveform was relatively large, and the heart ...
This section applies to the system compilation of ITOP-IMX6Q (commercial grade 2G+16G), ITOP-IMX6Q (industrial grade 1G+8G), and ITOP-IMX6D (commercial grade 1G+8G)with kernel version 3.0.35.13.1 Comp...
After the hardware is reset, the first step is to execute the reset handler. The entry of this program is in the startup code (by default). Here is an excerpt of the reset processing entry code of cor...
1. s3c6410 SD boot principle
s3c6410 supports Nand Flash local booting of Linux, including kernel, root file system, and bootloader are all written in Nand Flash. This allows independent...[Details]
The power battery markets of China, Japan and South Korea are "three countries killing each other", and their forces are waxing and waning. There are 6 Chinese companies on the global installed cap...[Details]
Mechanical aspects
1. Bearings
The clearance of the bearing on the screw bearing seat is too large after the bearing is worn, or the bearing rolling element and cage are seriously worn af...[Details]
1) Test steps
(a) Plug in the power cord of the oscilloscope, turn on the power switch, and the power indicator light will light up. After the scan line appears, adjust the brightness to the ...[Details]
Use an additional circuit board to input the electrical signal to be observed, connect the output signal to the video input interface of the TV, and the waveform of the electrical signal can be displa...[Details]
In the field of display technology, although LCD liquid crystals occupy most of the market, the OLED and Micro-LED technologies that have emerged in recent years have gradually entered the public eye...[Details]
On the afternoon of November 29, BAIC BluePark Information, China Electric Interconnection, and Qi'anxin announced the joint establishment of a connected vehicle security laboratory. On November 2...[Details]
In the previous article, we have made a relatively detailed introduction to various interfaces. This time we will further analyze the transmitted signal processing.
Scaler module function detail...[Details]
In 2017, a "environmental protection storm" swept across the country. Among them, "Shanghai Jielong Metal Wire Drawing Co., Ltd." was ordered by the local government to cut off power and stop product...[Details]
When Linux starts, the kernel creates a segment memory mapping for itself instead of a page mapping.
The mapping table (PGD) starts at the virtual address 0xc0004000. Each item is 4 bytes, and each i...[Details]
On May 27, the unveiling ceremony of the joint R&D center between Hangzhou Dianzi University and Hangzhou Yucheng Electronic Technology Co., Ltd. was held. According to MicroParity, Hangzhou Dianzi...[Details]
Part 0 Preparatory knowledge 0.1 Key Parameters 0.1.1 Development Board Description OK6410 is a development board released by Feiling. There are currently two versions, OK6410-A and OK6410-B. I am cu...[Details]
1. NAND principle NAND has no address space, and the transmission of address and data relies on the LDATA string of data buses. Without looking at random page programming, you can see th...[Details]
According to the team led by Yang Shaohui of Bank of China, on May 20, the first equipment moving-in ceremony for Xiamen Silan JiKe Microelectronics' 12-inch production line construction project was ...[Details]
1. First, select the corresponding measurement position and appropriate range according to the measured quantity and its estimated size. 2. When the size of the object to be measured cannot be esti...[Details]
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