Specifications

7-1
Chapter 7
Connecting to I/O Devices
This chapter introduces RTDX and DSP/BIOS techniques for implementing I/O.
In this chapter, you connect a program to an I/O device using RTDX and
DSP/BIOS. You also use the HST, PIP, and SWI modules of the DSP/BIOS API.
This chapter requires a physical board and cannot be carried out using a
software simulator. Also, this chapter requires the DSP/BIOS and RTDX
components of Code Composer Studio.
7.1 Opening and Examining the Project . . . . . . . . . . . . . . . . . . . . . . . . . 7–2
7.2 Reviewing the C Source Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–3
7.3 Reviewing the Signalprog Application . . . . . . . . . . . . . . . . . . . . . . . 7–6
7.4 Running the Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–7
7.5 Modifying the Source Code to Use Host Channels and Pipes . . . 7–10
7.6 More about Host Channels and Pipes . . . . . . . . . . . . . . . . . . . . . . . 7–12
7.7 Adding Channels and an SWI to the Configuration File . . . . . . . . 7–13
7.8 Running the Modified Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–17
7.9 Learning More . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–17
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