I would like to ask, how to use two timers to control the buzzer sound at the same time, timer 0 controls the frequency, timer 1 controls the duration of the same frequency, and outputs 1, 10, 50, 100...
The GPRS module I am using is BENQ's M22A, and the ARM is lpc2136. Wow, now I want to use the module without TCP/IP protocol to access the Internet, so of course I have to set up the protocol myself. ...
I wrote an i2c device driver myself, but after testing it with an application, I can normally operate the open, read and write in the kernel's built-in i2c-dev.c (the device node is i2c-0), but I cann...
TCPMP plays videos and it gets stuck. I tested the speed and it was 102%. I want to know some ways to increase the speed. How can I increase the speed? In the TCPMP settings, it shows the main frequen...
In recent years, as energy consumption and environmental protection issues have attracted people's attention, my country's solar photovoltaic power generation industry has shown a rapid development...[Details]
The day before yesterday, I learned about STM's Systick and found it quite useful for precise timing. When I used CVAVR before, I found that the delay.h in it was very useful. So, I used STM32's...[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]
introduction In the general project development process, two or more microcontrollers are often required to communicate to complete data transmission. For example, a quadcopter wirelessly transmits d...[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]
This routine is also a classic routine on the development board. I modified the framework of the program to make it more suitable for future calls. The specific 4*4 keyboard scanning principle is rel...[Details]
1. Introduction to MC68K CPU The MC683xx series of microcontrollers are composed of the famous MOTOROLA 32-bit microprocessors such as MC68K, 68020, 68040, and the compatible 68K, CPU32, CPU3...[Details]
As photovoltaic power stations come into people's view, people are paying more and more attention to them. Recently, some netizens asked me how to match the inverter and components of photovoltaic ...[Details]
On May 16, in response to
the public opinion storm caused by
Lenovo's
"
5G
voting" incident,
Lenovo
Holdings Chairman and
Lenovo
Group Founder Liu Chuanzhi, Lenovo Gr...[Details]
As a leading company in automotive semiconductors, Freescale and Khronos Group have jointly launched an automotive multimedia embedded microprocessor i.MX35 with an integrated OpenVG hardware acceler...[Details]
At the beginning, I used the stdlib library. Recently, I found that the cube library is more and more widely used, so I started to use the cube library to complete the ADC multi-channel acquisition e...[Details]
I used the bit definition in my 51 program: bit flag. After defining it this way, I ran the program and downloaded it to the circuit board. I found that the flag was not the value I set, which led to...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
