The following is the code placed on CE as the server side: SOCKET s = socket (AF_BT, SOCK_STREAM, BTHPROTO_RFCOMM); SOCKADDR_BTH sa; memset (&sa, 0, sizeof(sa)); sa.addressFamily = AF_BT; sa.port = 0 ...
1 Advantages and disadvantages of the front-end and back-end systems. The architecture of the front-end and back-end systems can be described in one sentence as a large loop, plus interrupts, which fo...
The framework class receives serial port data and passes it to the corresponding VIEW class for processing through messages. However, the VIEW class implements the function of popping up a menu by pre...
I put a GPRS module on the board, SIM508. When I debugged it today, I found that the dial-up under WINCE5.0 always showed "dialing "*99***1#", and then there was no response. After a long time, it sho...
Using DSP to realize the precision expansion of IIR filter Abstract: This paper mainly introduces how to implement extended precision multiplication on TMS320C54X DSP, the basic principle and algorith...
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1. Function prototype In the function library officially provided by STM32, you can find functions like HAL_Delay(). This function uses a timer to achieve a more accurate time delay and provides it...[Details]
China Energy Storage Network:
Blockchain + finance, blockchain + environmental protection, blockchain + insurance, even a roadside fried chicken shop is using the banner of blockchain + fried...[Details]
background After the hardware engineer completed the PCB and schematic design, the routine was modified according to the tutorial of Zhengdian Atom to verify the correctness of the hardware. STM32F...[Details]
Overview
Lightning is a strong discharge phenomenon that occurs between thunderstorm clouds and between thunderstorm clouds and the earth due to severe convective weather. Lightning is gen...[Details]
The photovoltaic inverter is the core equipment of the photovoltaic system. Its main function is to convert the direct current generated by the photovoltaic modules into alternating current that meets...[Details]
As the weather gets colder, the way the north and south spend the winter has become a hot topic and people talk about it. Although the north is particularly cold, because there is heating, it can s...[Details]
With the development of the automobile industry, more and more automotive electronic components are being used in modern cars, providing better safety, comfort and economy for cars. In the past, cars...[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]
Photovoltaic inverters are the core equipment of photovoltaic systems. Their main function is to convert the direct current generated by photovoltaic modules into alternating current that meets the...[Details]
The analog watchdog of the ADC is used to check if the voltage is out of bounds. It has two upper and lower bounds, which can be set in the registers ADC_HTR and ADC_LTR respectively. The library fun...[Details]
Internal channels of ADC: In addition to using external channels to collect external analog voltage signals, the ADC of STM32 also has two internal channels 16 and 17. Channel 16 is connected to ...[Details]
DMA: 1. When using DAC, when the converted analog signal is output through the IO port, why is the IO port also configured to input mode? PS: The stm32 manual defines that PA4 and PA5 are connected...[Details]
China Energy Storage Network News:
2017 is the year when China's energy internet policy was implemented. Since the National Energy Administration issued the "Notice on the Announcement of the...[Details]
Pay attention to whether the new lock matches the old door Smart locks have many advantages over traditional mechanical locks. Although the domestic penetration rate is not high, with the strength...[Details]