uC/OS-II Introduction uC/OS-II is a priority-based preemptive hard real-time kernel. Since its release in 1992, it has been widely used all over the world. It is a kernel designed specifically for emb...
Reduce noise and interference 1) If you can use a low-speed chip, don't use a high-speed one. Use high-speed chips in key places. (2) You can use a resistor in series to reduce the jump rate of the co...
I installed the driver according to the LM3S811EVALUATION KIT README FIRST in the LM3S811 TI Evaluation kit CD. After installation, the driver name is different from that in the documentation. The doc...
I use CCS3.3 to connect the emulator XDS510-USB2.0 to flash the program to 2812. The software and emulator are normal, and there is no problem in flashing the program normally. Recently, the error ala...
[i=s]This post was last edited by yin_wu_qing on 2022-1-22 18:10[/i]After communicating with the organizer, the development board was received in advance. SF Express was indeed very fast. Let's unbox ...
The PC machine can communicate with multiple 485 devices via a 232->485 converter. I have written about 232, but I am not sure about 485. I would like to ask: (1) Should this be full-duplex or half-du...
UHF and HF are both general technology categories, but each category has independent supporting protocols. HF is more consistent in the 13.56MHz frequency band, although there are many internation...[Details]
Preface
Sleep apnea is a very common sleep breathing disease. According to research, about 24% of adult men and 9% of adult women, or more than 2 million people, suffer from this disease ...[Details]
Abstract: Based on the research of the communication process between the reader and the RFID tag, combined with the EPC C1G2 protocol and ISO/IEC18000.6 protocol, a digital circuit of RFID tag appl...[Details]
Overview
In recent years, the vigorous development of integrated circuits has created a huge space for the research and application of digital circuits. FPGA has low power consumption, high re...[Details]
Introduction
The MAX2116 P1db data is measured at specific combinations of RF and baseband gain over the adjustable range of these two gains. These data can be used to select gain control se...[Details]
According to In-Stat/MDR, the number of mobile phones with Bluetooth capabilities will reach at least 300 million by 2005. One of the clear evidences of the increasing adoption of Bluetooth is that...[Details]
TMS320C62X is a new generation of high-performance fixed-point digital signal processor (
DSP
) chip
from Texas Instruments (
TI
). The software design problem based on
DSP
is to use...[Details]
1. Introduction
The balance ability
of human beings
is the basis for people to carry out various sports. People need
balance ability
to stand, sit, lie down and walk
. Once
...[Details]
In the process of RF transceiver application, adjusting the processing gain (PG) of the direct sequence spread spectrum communication system (DSSS) can obtain excellent anti-noise performance, whic...[Details]
Portable products are generally powered by batteries. Due to cost and size considerations, there is a trend to reduce the number and size of batteries used in design. If the number of batteries is ...[Details]
When it comes to ATX power supply, people will think of two "classic" ICs: pulse width modulation chip TL494 and voltage comparator LM339. The new dedicated control chip AT2005B has the functions ...[Details]
1 Introduction
In many communication systems, the base station usually sends a training sequence for the terminal to synchronize with the system. The synchronization here includes time syn...[Details]
Focus shift problem
Visible light and infrared light have different wavelengths, so the imaging focus is not on the same plane, which results in a clear image under visible light condition...[Details]
The teardown of the third-generation iPhone shows that the phone is more integrated and may cost less, in part because of the use of chips from Broadcom and Toshiba. One analyst joked that the "S" ...[Details]
Prisons are an important part of the national judicial organs, shouldering the important mission of enforcing laws and disciplines and educating and reforming. The safety of prisons is related to t...[Details]
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