[b] In the test system, RC filter is often used. Because in this field, the signal frequency is relatively low. The RC filter circuit is simple, has strong anti-interference, has good low-frequency pe...
I used C2000's SPI to drive ADS8332. I've had success in the past, but it was on a different PCB. However, when I tried it again, I ran into a lot of problems. [/font] Phenomenon: When the sampling an...
Question 1: Is it necessary to install the initial value of the timer in the main function? I seem to have tried it and it works fine without it. Question 2: If timer 0 is turned off in timer 1, do I ...
When I assign a 20-bit address 0x10000 to a pointer variable, it always says that it is out of the range of 0 to 0xFFFF.This is possible in assembly language, because MSP430X provides instructions wit...
Please help me analyze this:the crystal oscillator is not working properly. It does not oscillate at first. Then I touch it with a soldering iron and it works normally for a while. Then it does not os...
As the title says. Now the program runs in pure DOS booted by virtual floppy drive. The program written in 2000 with bc31 runs smoothly in 2000, but it is very stuck in DOS. I want to compile it in DO...
【JDPCB】Qisda is introducing smart factories in phases. Chairman Chen Qihong said yesterday (25th) that through high automation, order delivery can be accelerated. The current benefits have reached a...[Details]
1. Principle 1. Infrared emission protocol There are many infrared communication protocols. This experiment uses the NEC protocol. This protocol uses PWM modulation and uses pulse width to represen...[Details]
1. Problem When developing STM32 with IAR, I found that I could not print floating point numbers by redirecting printf to the serial port. The code is as follows: The output is as follows: It can...[Details]
Using Systick timer to achieve delay 1. SysTick timer characteristics The SysTick timer is a 24-bit down counter, that is, when vlue is decremented to 0, an interrupt is triggered and the load va...[Details]
Today, under the guidance of a low-level expert, I learned how to configure the PWM module! Woof! First open the file configured last time, as follows: Then, we need to use TIM1 to set PWM: Then,...[Details]
Superconductors have physical properties such as zero resistance effect, Meissner effect and Josephson effect, which make them have broad application prospects and unparalleled advantages in many b...[Details]
What is SYSTICK: This is a 24-bit system tick timer, SysTick, with automatic reload and overflow interrupt functions. All microcontrollers based on the Cortex_M3 processor can obtain a certain time ...[Details]
Independent watchdog (IWDG) and low power mode are often used in STM32 development. The watchdog is to detect and solve faults caused by software errors, and the low power mode is to enter sleep mode...[Details]
If you do not use an external crystal on the STM32, the connection method of OSC_IN and OSC_OUT If you use the internal RC oscillator instead of an external crystal, please follow the following metho...[Details]
Recently, the National Development and Reform Commission announced that all foreign equity restrictions in the automobile industry will be lifted in the next five years. At the same time, as subsid...[Details]
Homemade LED Electronics Clocks can be seen in many electronic newspapers and magazines, but most of them need to reset the time and other parameters after power failure, which brings a lot of inco...[Details]
Recently, the "2018 Household Photovoltaic Development Seminar" was successfully held in Hangzhou, Zhejiang Province. Sungrow attended the conference as a special co-organizer and summarized the statu...[Details]
The chip is EM78P153 ; P64, P65 are connected to the crystal oscillator, the oscillation mode is 4MHz crystal oscillator ; the watchdog is off, the instruction cycle is 2 CLOCK, and P63 is the rese...[Details]
In this example, a single-byte binary number (0X20) is converted into uncompressed BCD code and stored in 0X25, 0X24, and 0X23, where 0X25 is the hundreds place and 0X23 is the ones place. main: MOV ...[Details]
Analogue and Mixed Signal
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