Digital Signal Processing Reference
In-Depth Information
for (i = 0; i< N; i++)
yn += (h[i] * dly[i]); //y(n) += h(i)* x(n-i)
for (i = N-1; i > 0; i—) //starting @ end of buffer
dly[i] = dly[i-1];
//update delays with data
move
output_sample(yn >> 15); //scale output filter
return;
}
void main()
{
comm_intr();
//init DSK, codec, McBSP
while(1);
//infinite loop
}
Step 3: Setting up the 6711 DSK for filter implementation
The steps for this exercise are given in detail in Section 8.2. However, the
main instructions are again summarized below.
•
Initial setting up of the equipment
• Connect the parallel printer port cable between the parallel port
on the DSK board (J2) and the parallel printer port on the back
of the computer.
• Connect the 5V power supply to the power connector next to the
parallel port on the DSK board (J4). You should see 3 LEDs blink
next to some dip switches.
Once the DSK board is connected to your PC and the power supply
has been connected, you can start CCS.
•
To do this, click on
Start
, go to
Program
, and then go to
Texas
Instruments
, then
Code Composer Studio DSK Tools 2 ('C6000)
,
select
CCStudio
.
•
Or from Desktop click on
CCS-DSK 2 ('C6000)
.
•
Creating a new project file
•
In CCS, select
Project
and then
New
. A window named
Project
Creation
will appear.
•
In the field labeled
Project Name
, enter
filtering_signal&noise
. In
the field
Location
, click on the on the right side of the field and
browse to the folder
c:\ti\myprojects\filtering_signal&noise\
.
•
In the field
Project Type
, verify that
Executable (.out)
is selected,
and in the field
Target
, verify that
TMS320C67XX
is selected.
