Abstract: This paper introduces the design of CPLD-based brush card computer networking centralized control automatic storage system, and details the hardware and software components of the system, the internal logic design of CPLD, and the working principle. The system is fast, safe and reliable, and has the features of easy operation, fast query and easy real-time monitoring. Keywords: CPLD Electronic Packet Serial Communication

Summary of the development of portable low-frequency amplitude-frequency characteristics tester: This paper introduces an amplitude-frequency characteristics tester based on single-chip computer control, which is used to measure the amplitude-frequency characteristics of active and passive networks. In this paper, the signal generation, data collection and LCD display technology of the tester are mainly discussed. Keywords: Amplitude-frequency characteristics, single-chip computer, frequency synthesis, LCD 1 Introduction In electronic measurement often encountered is the resistance to the network

Design summary of encrypted IC card safe controller: Explain in detail the principle, hardware design and software design of IC card safe controller. The circuit schematic diagram and main program flowchart are given. Key words: With the progress of society and the improvement of people's living standard, the IC card single-chip computer safe has an increasing opportunity to travel, travel and vacation for them. In hotels, restaurants and other places of residence

In the application of measurement, control and other fields, it is often required that the data in the internal and external RAM of the single-chip computer is not lost when the power is off. When the power is re-charged, the data in the RAM can be preserved intact, which requires adding and connecting the power-off protection circuit to the single-chip computer system. Power loss protection can usually be done in three ways: one is to add uninterrupted power supply to keep the whole system working during power loss, the other is to extract power

Related Component PDF Download:NT230NR230PT2262CD4060CD4514PT2272This paper introduces a secondary frequency conversion FSK narrowband transceiver module NT230, NR230 which is suitable for industrial remote control, especially for electric gourd remote control. This module is specially dev