Five points for attention in MCU design of low power consumption

The power consumption of MCU should be 176na, but it is 700mA! I can’t bear it. I want to die. Usually, when we use MCU with low power consumption, the actual power consumption often deviates greatly from the theoretical power consumption. For example, in some low to microampere power consumption modes, the low power consumption […]

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Talking about all kinds of clocks in Linux kernel

1、 Preface A clock or clock is a timing tool. Everyone has at least one piece, which may be on your mobile phone or on your wrist. If Linux is also an ordinary person, then she should have a dozen watches on her wrist, including clock_ REALTIME、CLOCK_ MONOTONIC、CLOCK_ PROCESS_ CPUTIME_ ID、CLOCK_ THREAD_ CPUTIME_ ID、CLOCK_ MONOTONIC_ […]

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FPGA clock design: how to establish time and hold time

Establishment time and holding time The clock is the most important and special signal of the whole circuit. Most of the devices in the system operate on the jump edge of the clock, which requires a very small delay difference of the clock signal, Otherwise, it may cause timing logic state error; therefore, it is […]

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Clock design of FPGA: how to set up time and hold time

Establishment time and holding time Clock is the most important and special signal of the whole circuit. Most of the devices in the system operate on the jumping edge of the clock, which requires that the delay difference of the clock signal should be very small, Therefore, it is very important to make clear the […]

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Design of frequency division circuit in FPGA design

In general, the clock frequency division plays an important role in FPGA design. This paper briefly lists the thinking of frequency division circuit design. Even frequency division circuit: If n-times even frequency division is needed, the clock to be divided can trigger the counter. When the counter counts from 0 to N / 2-1, the […]

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Implementation of improved parallel data processing algorithm in FPGA

1. Introduction In the process of signal processing, we usually convert analog signal into digital signal for processing or transmission. The original data is collected by sampling method, and the analog signal is converted into digital signal through a / D conversion. However, due to the large number of code bits, such digital signals occupy […]

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Clock operation instruction of Mitsubishi FX series PLC

Mitsubishi FX series PLC has 7 clock operation instructions, and the number of the instructions is distributed between fnc160 and fnc169. The clock operation instruction is to calculate and compare the clock data, and to calibrate and format the PLC built-in real-time clock. The clock operation instructions are shown in table 4-16. Table 4-16 clock […]

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A new real time clock circuit with temperature compensation function

Both devices can store up to 15 user-defined fault event failure records in non-volatile (NV) flash memory. Events such as overvoltage / undervoltage, over-current, overheating or sequencing errors can cause faults. Each failure record can retain 800ms system history information in NV flash memory, including voltage, current, temperature and other historical data. This comprehensive failure […]

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