Dear experts, please help me. I have been working on this all night and have tried the ISP grounding method mentioned in the evening, but this problem still occurs....
The GSM module uses SIM900A, provides SMA interface, earphone (with mic earphone) and speaker interface, onboard mic, serial port can be connected to MCU or lead out for netizens to DIY, SIM card hold...
Use proteus to simulate the half-bridge IC, which is IR2109. The operating frequency is 30K. I want to use LC resonant oscillation to generate a high voltage, but now I find that the VDS waveform is w...
Dear seniors: I have a task on hand: using lpc2136 ARM7 chip plus expansion card DTL800, design a CDMA DTU on uC/OS-II operating system, realize AT command operation, such as SMS, voice, dial-up Inter...
The application is very simple, just play the fixed audio in Flash. It doesn't have to be MP3, it can play other audio formats. The requirements are not simple, Requirement 1: Support secondary develo...
The global PV inverter market will shrink from $6.3 billion in 2017 to $3.7 billion in 2022 due to falling prices, according to GlobalData.
Global PV Inverter Market Value to Shrink to $3.7 Bil...[Details]
In our common sense, the word technology often has two definitions. The first is the technology sealed in the laboratory. They are like flowers on the mountain top. Only a few people on the mountai...[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]
LAN8720 configuration: IP: 192.168.192.30 Gateway: 192.168.192.1 A high frequency of ARP packets is detected The content of the packet asks for the mac address of 192.168.192.1, and asks the resp...[Details]
This small program is still the use of timer, which is relatively simple. The specific parts are noted in the comments, please refer to the comments. /*********************************************...[Details]
From the functional classification, it can be divided into: 1. Active control ADAS: ACC/AEB/LKS, etc. 2. Warning ADAS: FCW/LDW/PCW, etc. 3. Other auxiliary ADAS: BSD/ADB/panora...[Details]
The independent watchdog of STM32 is driven by a dedicated internal 40Khz low-speed clock, that is, it is still effective even if the main clock fails. Here we need to note that the clock of the inde...[Details]
The first one is a DMA mode of multiple channel acquisition void ADC_DMA_Config(void) { ADC_InitTypeDef ADC_InitStructure; RCC_HSICmd(ENABLE); while (RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET); ...[Details]
After the first public release of the prospectus of CATL, a new vitality was injected into new energy vehicles. According to market speculation, CATL is expected to issue at around 60 yuan per shar...[Details]
In one of my products, there are two chips, AVR and PIC, at the same time. When AVR drives the relay, then drives the contactor. PIC is used for display. I found that PIC actually has a little interf...[Details]
China Energy Storage Network News
: On January 26, the second theme maker camp "Energy Internet Town" of the "Xiongdian Acceleration Maker Space" of the Xiong'an New Area Power Supply Company...[Details]
In the first quarter of 2014, Inspur's
server
shipment market share reached 19%, ranking first in China and fifth in the global market. This is the first time a Chinese manufacturer has ach...[Details]
The following are several programming examples for driving the buzzer under S3F9454/9444 for reference. A. The first one is the ordinary IO high and low level driving method ...[Details]