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Here we take the IC card commonly used in public telephones as an example to illustrate the entire IC card device driver module through the implemented code.
(1) Determination of data structur...[Details]
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#define PAout(n) BIT_ADDR(GPIOA_ODR_Addr,n) //Output #define PAin(n) BIT_ADDR(GPIOA_IDR_Addr,n) //Input for example: PAout(0)=1 PA0 outputs high level GPIOx_CRH Port configuration high register IO 1...[Details]
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ARM is a RISC structure. The movement of data from memory to CPU can only be completed through L/S instructions, that is, ldr/str instructions. For example, if you want to read data from somewhere in...[Details]
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;P IC 16F877 MCU internal EEPROM reading and writing example**************************************************************************************** ; This is a program to test the function of read...[Details]
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There are five operating modes of ultrasonic thickness gauge. When technicians use ultrasonic thickness gauge, they are general measurement method, accurate measurement method, continuous measurement...[Details]
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• NXP invests in Zendar Inc. to advance the development of high-resolution and high-performance radar systems for autonomous driving and advanced driver assistance systems (ADAS) • Zendar's distri...[Details]
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Regarding similar problems, you can make a board and try it yourself. I believe it should not be difficult to simulate I2C communication with IO ports. The implementation method is to connect a pull-...[Details]
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In 2019, Texas Instruments (TI) launched a number of products with extremely low quiescent current (Iq), bringing an unprecedented experience to battery-driven products. These include the 25nA Iq low...[Details]
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1. ADC sampling If DMA is used, only 16 channels can be set at most. When there are more than 16 channels, interrupts are used to switch channels in the interrupts. 2. When I2C uses software to si...[Details]
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Since collaborating with Apple, Hermès has been launching electronic products from time to time to cater to the needs of different people. Just last week, Hermès once again tied the knot with ...[Details]
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Principle knowledge
Verification Test
Summarize
Many friends know that the math channel function can be used in the crankshaft signal waveform to obtain the engine speed inform...[Details]
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Minimizing the output ripple and transients of a switching regulator is important, especially when powering noise-sensitive devices such as high-resolution ADCs, where the output ripple will appear...[Details]
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Visible light emitting diodes ( LEDs ) are characterized by high efficiency and long life. They are now widely used. Manufacturers have developed new devices with higher luminous flux, longer lif...[Details]
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News on the afternoon of September 16th, vivo will hold the "Future Without Boundaries" NEX 3 5G flagship new product launch conference at 19:30 tonight at NEX SPACE in Shanghai. It is reported tha...[Details]
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Abstract: This paper discusses the design method of a fault-tolerant acquisition system. By using a software timer in the interrupt service program of the serial A/D converter MAX110, the fault ...[Details]