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This time it is a key interrupt. First of all, the interrupt initialization is indeed troublesome. The bare metal program I designed myself is the four buttons on the TQ board. When the button is pres...[Details]
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A few years ago, many power supply manufacturers used passive PFC modules in their power supply products. The PFC module is a filter that reduces harmonic currents and converts non-linear loads ...[Details]
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A source measure unit (SMU) is an instrument that combines the source and measure functions on the same pin or connector. It can source voltage or current and measure voltage and/or current simultane...[Details]
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The biggest news in the automotive and digital circles recently is that Geely is going to enter the mobile phone market! This is a foregone conclusion, whether it is the strategic cooperation agreeme...[Details]
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Playing music with a single-chip microcomputer or playing the electronic keyboard actually outputs a series of square waves at a specific frequency. In order to output a suitable square wave, we shoul...[Details]
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After being put on the "tightening curse", the development of the entire smart electric vehicle sector is still more beneficial than harmful. After all, there is no order without rules. Sometimes, to...[Details]
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Cypress's PowerPSoC smart LED device uses programmable system-on-chip (PSoC) technology, with the best power controller and switch devices, which can replace traditional MCU, system IC and a large num...[Details]
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1. Experimental principle: The I2C bus is a simple, bidirectional, two-wire synchronous serial bus developed by Philips. It only requires two wires to transmit information between devices connected...[Details]
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Virtual instruments can be connected to the object to be measured and controlled and the computer by a variety of interfaces (such as GPIB, VXI, PXI, etc.) or instruments with these interfaces. The...[Details]
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Some abnormal phenomena seen during the debugging process, and the subsequent solutions. In fact, many engineers believe that
designing power supplies
is a very experience-intensive tec...[Details]
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At present, there are mainly the following methods to expand the serial port: ①, using serial port expansion chips, such as ST16C550, ST16C554, SP2538, MAX3110, etc. Although the cost is relatively...[Details]
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As a precision instrument, the intelligent electromagnetic flowmeter should be maintained in daily use to ensure that it can work stably. Now winter has come quietly, and the temperature has dropped, ...[Details]
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On January 9, the Siyuan Electric Power Energy Storage Device Industrial Base Project (Phase I), a major provincial project with an investment of 2.4 billion yuan, officially started. Wu Jianyuan, vic...[Details]
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The continued popularity of battery-powered consumer electronic devices such as portable media players, smartphones and tablets has resulted in a plethora of different chargers and bundles ...[Details]
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Many MCU beginners and even some experienced engineers have never understood what data, idata, xdata, pdata, and code are. Recently, I saw an article about the problems of data, idata, xdata, pdata...[Details]