Lab 0: dsp hardware introduction  (Page 2/5)

Step 2: log in

Use your netID and password to log into the PC at your laboratory station.

When you log in, verify that the U: and V: networked drives are mapped to the computer. The U: drive is your personal work directory, and V: is a read-only course drive.

Although you may want to work exclusively in one partner's network account, you should be sure that both partners have copies of the lab assignment code.

The development environment

The evaluation board is controlled by the PC through the JTAG interface in CCS. This development environment allows the user to download, run, and debug code assembled on the PC. Work through the steps below to familiarize yourself with the debugging environment and real-time system using the provided FIR filter code (Steps 3, 4 and 5), then verify the filter's frequency response with the subsequent MATLAB exercises (Steps 6 and 7).

Step 3: assemble filter code

Setup code composer

Create or make sure you have the following directory: U:\workspace\ECE420 . In Workspace Launcher, hit Browse... , navigate to this folder, and make sure to check "Use this as the default and do not ask again".

Import project

1. Browse to V:\ece420\55x\ccs5\filter
2. Check "Copy projects into workspace"

Build project

• In Project Explorer, make sure that "filter" is highlighted.
• Select Project>Build Project .

In a successful build, there will be zero errors and maybe a few warnings and remarks. The output file will be placed in a Debug folder within the project's directory. In this example, the executable binary code will be located at .\Debug\filter.out .

Step 4: verify filter execution

Connect to the dsp

1. Select View>Target Configurations
2. In the panel that comes up, expand Projects>filter
3. Right-click on dsk5510.ccxml and select "Launch Selected Configuration"

Once CCS connects to the DSP, the debugger view will launch. Select Run>Connect Target

Load and run program

• Select Run>Load>Load Program .
• Select "Browse project" and choose the binary file filter.out .
• Execute the code by selecting Run>Resume .

The program you are running accepts input from input channel 1 and sends output waveforms to output channels 1 and 2 (the filtered signal and raw input, respectively).