I developed a program for making and receiving calls in Windows mobile 6 using TAPI. After receiving 3 rings, I executed the lineAnswer function to answer the call, but it didn't work. How can I autom...
I used the gcc that comes with Redhat to compile a program on my PC. When I changed it to arm-elf-gcc, I encountered the error message "carriage return in preprocessing directive" when processing the ...
Using dynamic scanning and timer 1, the digital tube displays a number starting from 765432 and decreasing at a speed of 1/10 second until it reaches 765398 and keeps displaying this number. At the sa...
Now I want to make a long-distance card reader application, hoping to read all the card numbers within a range of 3m. The main problems now are: 1. The card actively sends data, and the card reader is...
Now the PPPoE Internet access prompts that the access concentrator is not responding. There have been errors such as no carrier signal detection before. I have also seen similar problems in the forum,...
ZTE,
caught
in the vortex of
the US ban on the sale
of chips
, has sounded the alarm for China's information technology industry and revealed China's "chip disease". Let's follow the ...[Details]
1.MAX31865 (1 Introduction The MAX31865 is an easy-to-use thermistor-to-digital converter optimized for platinum resistance temperature detectors (RTDs). External resistors set the RTD sensitivity, a...[Details]
In the previous article, I wrote a simple GPIO running light test, which looked a bit monotonous. I was used to serial port debugging. If there was no serial port on the board, I had to find another ...[Details]
When Amazon launched its first
cloud computing
service, the outside world was not optimistic about this direction, as it had high investment, low profits and many uncertainties. Let's follo...[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]
This is my first time writing an STM32 program. I have many questions to ask. I want to convert the data of the SO of MAX6675 into the actual temperature and read it out using the serial port tool. I...[Details]
In 1952, Bell Labs built a 6-foot-tall automatic number recognition machine called "Audrey", which could recognize the pronunciation of the numbers 0 to 9 with an accuracy of more than 90%. And its...[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]
In the project, CPLD is needed to complete part of the algorithm design. The parameters are given by AVR, so the communication between AVR and CPLD needs to be completed. Therefore, a test program is...[Details]
The implementation of CAN driver under embedded operating system Android requires not only adding CAN driver device in Linux kernel, but also implementing the call of Android HAL layer. Taking S5...[Details]
In order to strengthen the traceability management of recycling and utilization of power batteries for new energy vehicles, and to standardize and guide all relevant parties to fulfill their tracea...[Details]
In 1949, after three years of civil war, the Nationalist government was defeated and retreated to Taiwan. The political and academic circles launched a large-scale reflection on why they failed in ...[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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