RT, I want to transplant the telemedicine product made with MCU 430 to ARM. I want to find a relatively stable gprs module, but I don't know which one to choose. For example, there are SIMcom's 900b, ...
The following questions are often asked, so I will just talk about them. First, the development of ARM can be described as a great success. When you look at the websites of various companies, most of ...
RT, I used DW01 and 8205A to make it. The schematic diagram is as follows . I found that it would lock up every time I connected a battery. I had to short-circuit the negative pole of the battery and ...
It seems that there are many seniors who have worked on DM642 in the forum. I also started working on it in 2008 for my master's thesis. Now I have sorted out the materials and debugging notes of that...
The diagram shows that the op amp is powered by a single power supply, the reference voltage is half of the power supply voltage, and the input signal diagram shows positive and negative. I think ther...
The most significant event in the technology circle during this period is undoubtedly the news that ZTE was banned by the United States. Once the news came out, it shocked the entire Chinese techno...[Details]
"Originally, there are many people who can design very good
chips
, but the market does not give domestic
chips
the opportunity to iterate, and domestic companies cannot give engine...[Details]
For STM32, there are two ways to reset the software: 1) Use the official software library The system reset function is directly provided in the stm32f10x_nvic.c file of the official software li...[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]
Since China began to try to produce panels independently in 1998, in 2018, China's panel industry has gradually upgraded from a marginal industry to the largest production scale. Especially in the ...[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]
I rewrote the main part of this program. The program uses the watchdog as a normal timer and scans the digital tubes in the watchdog interrupt. In addition, I added a display buffer. If you want to d...[Details]
1 Introduction Due to the special working environment of coal mine production, the production process is more dangerous and unsafe than the general industry. With the continuous increase in c...[Details]
In 2018, the National Development and Reform Commission issued a new photovoltaic subsidy policy. The benchmark on-grid electricity price was significantly reduced, the return on investment decreased,...[Details]
Every era has anxiety that has nowhere to go. Let's follow the embedded editor to learn about the relevant content.
The anxiety of the post-Internet era is that if you don’t revolutionize ...[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]
Introduction: As a power electronic device, the photovoltaic inverter mainly converts the direct current generated by the photovoltaic module into alternating current. Because there are thousands o...[Details]
A crystal oscillator can be electrically equivalent to a two-terminal network consisting of a capacitor and a resistor in parallel and a capacitor in series. In electrical engineering, this network h...[Details]
I have been working on a stm32 project recently and have been struggling with its startup method. I saw a good article and reposted it. The format of the original article is not very good, and there...[Details]
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