I wrote a clock program with simple functions, but the display is always 48. I don't know why... After careful debugging, I found that there is a very strange phenomenon in the function Conv in the pr...
Combining the experience of many people, I finally figured out the program of sending a u through the serial port and returning a helloworld. Without further ado, here is the program. //**************...
I wrote a small program in assembly language to test whether STM32 can boot from SRAM. It seems that it cannot boot. The process is as follows:1. Boot from flash. The program copies a section of code ...
We are in urgent need of part-time personnel to develop applications for Yinda D710 POS machines. If you are interested, please contact me as soon as possible. My email address is huzengli@21cn.com...
My MSP430F6638 board comes with an onboard emulator. The circuit of the emulator is the same as the 5529 development board on TI's official website. The operating voltage of MSP430F6638 is 3.3V. When ...
Regarding the PHY construction of LWIP, the PHY chip used is LAN8720A, RMII mode. Regarding the hardware connection part, the Atomic board F407 is used, and the hardware connection is as follows: ...[Details]
introduction STM32 has many registers, which are difficult to remember, so the official packaged two sets of library functions. One is the standard library, but the official has not updated it on F7,...[Details]
When designing a product, if the application environment's requirements for power isolation are not considered, the product will be unstable due to improper design, and even high voltage may damage t...[Details]
ADC Introduction: ADC (Analog-to-Digital Converter). That is, converting analog signals into digital signals for processing. When storing or transmitting, analog-to-digital converters are almost ...[Details]
OSC_IN and OSC_OUT are external crystal pins by default. If you do not use an external crystal oscillator on the STM32, how to connect OSC_IN and OSC_OUT If you use the internal RC oscillator instead...[Details]
STM32 ADC multi-channel conversion Description: Use ADC to continuously collect 11 analog signals and transfer them to memory through DMA. ADC is configured to scan and continuously convert mode,...[Details]
Summary of STM32 peripheral DMA usage: 1. Select DAM mode according to your needs: (1) Circular mode—DMA_Mode = DMA_Mode_Circular (2) Normal mode—DMA_Mode = DMA_Mode_Normal 2. For Chanel3 of DMA1, t...[Details]
12864 LCD parallel port driver is more commonly used, but considering that sometimes the IO port of the microcontroller or MCU is limited, the serial driver method can be used. The following is ...[Details]
/*----------------------------------------------- Name: IIC protocol PCF8591 AD/DA conversion Content: Use DA input, digital tube display output digital quantity, LED display analog voltage size ...[Details]
Getting to the bottom of blockchain
Since last year, blockchain has become the hottest word in both the financial and non-financial circles. Some people use it as a gimmick to engage in va...[Details]
A group of young people who looked like they were in their twenties or thirties were squatting on the edge of the factory flower bed. Some were looking at their phones helplessly, while others were...[Details]
The following comes from - "cortex-M3 Definitive Guide" Special function register group: Program Status Registers (PSRs or xPSRs) Interrupt mask register group (PRIMASK, FAULTMASK, and BASEPRI) ...[Details]
Caijing reporter exclusively learned that
Huawei
will merge and reorganize a number of departments in the near future. Some cloud-related business lines will be incorporated into the Cloud ...[Details]
Today, the country attaches great importance to the Internet of Things, and the Internet of Everything has become the vision of all people in related industries. However, at the same time, masterin...[Details]
Embedded System
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