Signal source board design based on OMAPL138 core board

Abstract

The invention relates to the field of signal source board design. In one embodiment, the signal source board comprises a core board module, a FPGA module, an AD / DA module, an interface driving moduleand a power source clock module, the core board module receives orders sent by an upper computer through a serial port and an Internet port, analyzes the orders and realizes control on the FPGA module, the AD / DA module and the power source clock module according to different functional requirements, the FPGA module communicates with a DSP through an EMIFA bus, receives orders sent by the DSP and generates corresponding signals according to the orders, an AD module in the AD / DA module can realize AD sampling of signals from four routes, the interface driving module is used for isolating outputexcitation signals generated by a FPGA from a backward-stage circuit and performing level conversion of 3.3-5V, and the power source clock module is used for powering other modules of the signal source board and an outside clock for a DSP chip and a FPGA chip. A lot of time can be saved, and design difficulty of a baseboard is lowered.

Description

technical field [0001] The invention relates to the design field of signal source boards, especially the development and application fields of DSP and FPGA. Background technique [0002] The signal source board is generally designed in the way of DSP (or single-chip microcomputer) + FPGA. The design time is expected to be about 10 years. The 10-year signal source board design time requires a lot of manpower and material resources, but it takes such a long time. The design results are likely to face the risk of being eliminated after the design is completed. [0003] Therefore, in order to meet the current development requirements for rapid design of signal source boards, it is urgent to develop a signal source board that can quickly complete the design. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a new signal source board. The signal source board adopts the core board design, which re...

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Problems solved by technology

[0002] The signal source board is generally designed in the way of DSP (or single-chip microcomputer) + FPGA. The design time is expected to be about 10 years. The 10-year signal source board design time requires a lot of manpower and material resources, but it takes such a long time. The design results are likely to face the risk of being eliminated after the design is completed

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