I have seen the OTA upgrade of stm32 done by the big guys before:
The flash is divided into three areas: bootloader area, APP1, APP2. Now I encounter the following problems:
1: The difference between ...
Transformers are divided into current transformers and voltage transformers.Voltage transformers mainly provide protection, measurement and synchronization of secondary voltage. Commonly used are elec...
[i=s] This post was last edited by azhiking on 2014-10-30 18:39 [/i] 1. Overall design block diagram2. System function introduction The whole system is designed in the form of MSP-EXP430FR5969 expansi...
I'm working on a project recently that uses the STM32 chip and the USB-to-serial function. The STM32 supports at least three serial ports (usart1, usart2, and usart3). The STM32 library provides a dem...
I have an ES3.0 version of IWR1443 radar board. TI technicians said that it can only be used for vital sign experiments. I want to do a gesture recognition experiment, which can only be done with the ...
introduction
At the beginning of this century, Veit used Einthoven's galvanometer to record the electrical activity of the human pregnant uterus from the body surface for the first time. In 19...[Details]
The circuit shown in the figure is a three-digit tachometer used to measure low frequency signals with a repetitive time interval of 0.235 to 15 seconds. The tachometer has a speed range of 4 to 255 r...[Details]
With the continuous improvement of living standards and the increase in the proportion of urban aging, the household use of medical electronic equipment has gradually become a trend. Among them, the...[Details]
At present, a hot spot for the research and development of hearing aids abroad is concentrated in China. To be more precise, it is based on the research of Chinese language and speech, and the deve...[Details]
As the whole equipment is becoming increasingly miniaturized and power-saving, low-dropout linear regulators (LDOs) with low power consumption are becoming the mainstream in the market for linear regu...[Details]
In view of the problems in the actual FPGA development process, such as difficulty in locating faults, long compilation time after repeated code modification, and inability to confirm fault solutio...[Details]
In a Class D audio power amplifier, the preamplifier is a relatively important module. It is located at the front of the entire topology and completes the processing of the input signal source,...[Details]
With the continuous emergence of new technologies and the increasing complexity of DSP real-time systems, there are more and more different types of external devices. Writing drivers for these exte...[Details]
Some application designs have higher requirements on the speed at which the system's switching power supply can provide voltage output. Figure
1
shows
the
bootstrap
...[Details]
Lifting wavelet transform not only has the advantages of traditional wavelet multi-resolution, but also simplifies the operation and is easy to implement in hardware. Therefore, it is widely used in d...[Details]
Preface
In the application of PLL, DLL and CDR circuits, people generally require the output clock signal to have a 50% duty cycle so that data can be sampled at both the rising and fallin...[Details]
0 Introduction
GaAs photocathode is a negative electron affinity photocathode with the advantages of high quantum efficiency, concentrated energy and angle distribution of emitted electrons. T...[Details]
Electrochemical Principles of Blood Glucose Measurement
The electro-biochemical principle of blood glucose measurement is that when a certain voltage is applied to the blood after the enzy...[Details]
PSoC is a programmable system-on-chip produced by Cypress Semiconductor with an 8-bit MCU core and a digital and analog mixed signal array. PSoC integrates three programmable capabilities into one....[Details]
0 Introduction
With the release of the "Elevator Supervision and Inspection Regulations", new requirements have been put forward for the inspection quality of elevators by inspection agenc...[Details]