The DS1307 calendar module I use also comes with an AT24C32 EEPROM chip. See the picture below for details. The DS1307 chip on the left and the AT24C32 chip on the right.This EEPROM has 16-bit address...
Dear masters, I have a design task at hand and I am collecting solutions. The main situation is as follows: the board consists of BGA core board (existing module) + DA analog output part + constant cu...
I have a board, and I am sure that there is something wrong with the program. I searched the Internet for a long time and found that there are very few posts about H8S/2398. After looking at the circu...
Urgent request: How to enter Windows in PXI7854 chassis, or which key to press when booting to enter BIOS and change settings. Thank you~~ Thank you...
[font=微软雅黑][size=3]My colleague translated an interesting speaker disassembly. Let's take a look at what chips are used in this powerful speaker:loveliness:[/size][/font] [font=微软雅黑][size=3] [/size][/...
I recently came across a digital reversing radar. In the probe part, the microcontroller is directly connected to the coil to drive the probe to emit ultrasonic waves, and then the feedback waveform i...
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]
In the actual project development process, hardware circuits often need to be modified, and the modified parts need to modify the driver. Thinking about the coming and going of such requirements is t...[Details]
The program got stuck during LCD initialization. Through hardware debugging, it was found that it was stuck in the Delay_ms() function. Going to the definition, it was found to be a macro definition ...[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]
Because the STM32 HAL library only has millisecond-level delay for HAl_Delay(), in order to achieve accurate microsecond-level delay, Systick has to be modified. However, since it is used internally ...[Details]
Although it is early summer, the Chinese smartphone market is still in the cold winter, just like Beijing in April with snow. For mobile phone brands caught in the middle, the cold is even more bit...[Details]
From last year to now, competition in the photovoltaic inverter industry has become increasingly fierce. In addition to the introduction of new products, various marketing and promotion methods hav...[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]
This example is mainly to familiarize yourself with the register configuration of Timer A and the configuration method of IAR. /*********************************************** Program function: re...[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]
This paper combines embedded control technology with network control technology to realize the design of temperature control system based on single chip microcomputer through Internet control. Th...[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]
Use the STM32 timer input capture module to control 3-way ultrasonic sensors. The ultrasonic sensor used this time is the common HC-SR04, which is often used in the obstacle avoidance system of smal...[Details]
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