Excitation acquisition system of TMS320F28 series DSP

A technology of TMS320F28 and acquisition system, which is applied in general control system, control/regulation system, instrument, etc., can solve the problems of complicated host computer requirements, inability to realize signal excitation and data acquisition, etc.

Pending Publication Date: 2020-07-07
JIUJIANG UNIVERSITY
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a TMS320F28 series DSP excitation acquisition system, which solves the problem that the existing system has complex requirements on the upper computer and cannot realize the dual functi...

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  • Excitation acquisition system of TMS320F28 series DSP
  • Excitation acquisition system of TMS320F28 series DSP
  • Excitation acquisition system of TMS320F28 series DSP

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing:

[0018] A kind of excitation acquisition system of TMS320F28 series DSP, this system comprises the DSP chip of TMS320F28 series, described DSP chip is connected with upper computer through serial port communication module, described DSP chip expands external DA module through SPI interface module, on the described DSP chip It is also equipped with an internal AD conversion module, a PWM pulse width modulation module, a DMA direct memory access module, and a plurality of internal I / O ports; the serial communication module adopts the serial communication module that comes with the DSP, and communicates with the host computer through the UART to USB interface. connection; the external DA module uses a TLC5615 interface to increase the DA conversion rate; the internal AD conversion module uses an on-chip AD module, up to 16 analog inputs.

[0019] The serial port communication m...

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Abstract

The invention relates to an excitation acquisition system of a TMS320F28 series DSP. The system comprises a DSP chip of a TMS320F28 series, wherein the DSP chip is connected with an upper computer through a serial port communication module, the DSP chip is expanded to be externally connected with a DA module through an SPI interface module, and the DSP chip is further provided with an internal ADconversion module, a PWM pulse width modulation module, a DMA direct memory access module and a plurality of internal I/O ports. The system can conveniently output multiple paths of analog signals andcollect multiple paths of signals (AD conversion), can also generate multiple paths of logic signals and collect multiple paths of logic signals, and can conveniently communicate with an upper computer.

Description

technical field [0001] The invention relates to an excitation acquisition system of TMS320F28 series DSP. Background technique [0002] In the field of signal detection, it is often necessary to generate a specific signal to stimulate the object, so as to obtain the hidden relevant information of the stimulated object, while in the field of system control, it is to collect the relevant information of the controlled object, and output the corresponding control amount accordingly. In both application scenarios, similar data acquisition and upper computer output control are required. For complex, high-speed upper computer applications, the dual functions of signal excitation and data acquisition cannot often be realized. Professional data acquisition cards have waveform generation and waveform acquisition functions, but they are expensive. Contents of the invention [0003] The purpose of the present invention is to provide a TMS320F28 series DSP excitation acquisition syst...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/24215
Inventor 江金龙江政昌
Owner JIUJIANG UNIVERSITY
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