Complex application-oriented multivariate DA conversion control system and complex application-oriented multivariate DA conversion control method

Abstract

The invention discloses a complex application-oriented multivariate DA conversion control system and a complex application-oriented multivariate DA conversion control method. The control system comprises a bus interface module. The bus interface module is in bidirectional connection with 2-4 paths of control units; each path of control unit is matched with the bus interface module to control one DA converter; the control unit comprises a register control module in bidirectional connection with the bus interface module, the register control module is in bidirectional communication connection with a multifunctional control module, and the multifunctional control module is in bidirectional communication connection with a data storage module and a time sequence control module corresponding tothe DA converter; the control requirements of two to four DA converters are met; a plurality of DA converters of different types can be controlled at the same time, and the selectivity of users is high; through parameter configuration, periodic waveforms including sine waves and triangular waves can be output through DA, amplitude and frequency configuration is achieved, square wave output is supported, the amplitude, the frequency and the duty ratio are configurable, and various application requirements can be met.

Description

technical field [0001] The invention belongs to the technical field of digital / analog (DA) conversion control, that is, the technology of converting digital signals into analog signals, and in particular relates to a complex application-oriented multivariate DA conversion control system and control method. Background technique [0002] In the existing digital / analog (DA) conversion control technology field, the control timing of each DA converter is different, and each DA controller often only supports the control timing of one DA converter. A DA converter, the DA controller must be redesigned; the output of the DA controller is often a single point output, if you want to output a certain waveform through the DA converter, it is often controlled by software, and the real-time performance of software control is not good. High, and will increase the load on the processor. [0003] The design methods of the above-mentioned DA controllers all have certain defects, and it is dif...

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Problems solved by technology

[0002] In the existing digital / analog (DA) conversion control technology field, the control timing of each DA converter is different, and each DA controller often only supports the control timing of one DA converter. A DA converter, the DA controller must be redesigned; the output of the DA controller is often a single point output, if you want to output a certain waveform through the DA converter, it is often controlled by software, and the real-time performance of software control is not good. High, and will increase the load on the processor

[0003] The design methods of the above-mentioned DA controllers all have certain defects, and it is difficult to meet the current complex and changeable application requirements.

The defects are as follows: (1) The DA controller only supports one kind of DA converter, and the user's choice is not high; (2) The function is not perfect, and the periodic waveform needs to be completed by running the driver software on the processor, and the real-time performance is not high. Processor load is heavy

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