Chapter 9 - LabVIEW DSP Integration

Abstract

A digital signal processing (DSP) system designed in LabVIEW can be placed entirely or partially on a hardware platform. This chapter discusses the implementation process on DSP hardware platform, which consists of a TMS320C6713 or TMS320C6416 DSK board. It also discusses the LabVIEW toolkit DSP Test Integration for TI DSP. Communication between LabVIEW and a C6x DSK board is often achieved by using a real-time data exchange (RTDXTM) feature of the TMS320C6x DSP. This feature allows exchanging data between a DSK board and a PC host without stopping program execution on the DSP side. This data exchange is done either via the joint test action group (JTAG) connection, or the universal serial bus (USB) port. The implementation or integration of a DSP system on a hardware platform is made possible by using the LabVIEW toolkit DSP Test Integration. This DSP Test Integration for TI DSP toolkit provides a set of VIs, which enable interfacing between LabVIEW and Code Composer Studio. The virtual instruments (VIs) provided in this toolkit are categorized into two groups —code composer studio (CCS) Automation and CCS Communication. The VIs in the CCS Automation group allows automating the CCS code execution process through LabVIEW. However, VIs in the CCS Communication group allows exchange of data through the RTDX channel. It is essential to match data types and data formats in LabVIEW and CCS in order to establish a proper LabVIEW DSP integration.