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The KEA128 chip has 7 groups of IO, PORTA--H has 8 pins in each group, and PORTI has 7 pins, totaling 71 pins. The driving capacity of each pin is 2.5mA, and all pins can be pulled up to VDD intern...[Details]
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//Initialize IO mode: pull-up/pull-down input. Call function: void KEY_Init(void) //IO initialization { GPIO_InitTypeDef GPIO_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO...[Details]
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Traditional digital communication is achieved by sending analog waveforms containing information in the channel, while ultra-wideband (UWB) communication is achieved by sending and detecting extrem...[Details]
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Trump's new tariffs on China are about to take effect on Sunday (September 1st) local time. CNBC did some calculations for Trump that day, emphasizing that "the trade war has already cost (US) electr...[Details]
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New AI Lab of Excellence will use high-performance computing and AI to solve scientific challenges at scale Atos and NVIDIA today announced the launch of the Excellence AI Lab (EXAIL), which will b...[Details]
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In the field of speech and music synthesis, voltage-controlled filters are often used to envelope-shape the generated sound signals. However, due to high cost, many peripheral devices required, and co...[Details]
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On December 29, 2010, the Nanjing Photovoltaic Base of China Electric Power Group held a groundbreaking ceremony for the China Electric Power Photovoltaic R&D Building. Dai Huajie, member of the Stand...[Details]
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Japan’s display panel industry used to be the world’s number one, and major TV and mobile phone manufacturers used to take pride in high-end models of panels produced in Japan. However, in the past d...[Details]
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This paper proposes a design scheme for a high-performance all-digital sine wave inverter power supply. The scheme is divided into two stages, the front stage uses a push-pull boost circuit to boost ...[Details]
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In the STM32F10x series chips, although the number of SPI synchronous serial ports is different, the initialization method is the same. When using SPI, we recall the use of GPIO and pay attention to ...[Details]
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1. Basic knowledge 1.Key classification and input principle According to the structural principle, the keys are divided into two categories: one is the contact switch key, such as mechanical swi...[Details]
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According to Daily Technology, researchers at Purdue University in the United States have recently overcome a major technical problem. This technology will reduce the energy consumption of solid-state...[Details]
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The principle of condenser microphone
Condenser microphones use the change in capacitance to convert sound signals into electrical signals. This type of microphone is the most common, and the ...[Details]
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Stepper motors are widely used in control systems. They can convert pulse signals into angular displacement and can be used as electromagnetic brake wheels, electromagnetic differentiators, or angula...[Details]
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In the previous section, when I set up to disable the watchdog, I set WTCON to 0 and masked the interrupt. As shown below:
This section is to mask the interrupt register:
The follow...[Details]
Analog electronics
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