ECE 3551
Microcomputer Systems 1
Final Project
Sultan Alzomiea
Instructor: Dr. Kepuska
Date submitted: May 5nd 2009
Objective:
To use the knowledge learned in ECE-3551, to make a
final project. The project is to do the following:
1.
2.
3.
4.
Turn the sound on/off.
Switching the speakers.
Increase volume.
Decrease volume.
Hardware/Software Used:
1.
2.
3.
4.
5.
ADSP-BF533Processor.
Blackfin VisualDSP++ 5.0.
Speaker.
Input audio.
MATLAB.
Discussion:
For this lab, we learned how to process audio data in ADSPBF533 EZ-Kit Lite, and the results where:
When Press PF8 = activate/de-activate LP filter, Turn LED4
on/off, fully
attenuated audio output for high frequency input.
When Press PF9 = First press all speaker work. Second press
the left speaker work. Third press the right speakers work
When Press PF10 = It increase the volume, also LED1 and
LED2 ON. Second press increases the volume more , Also,
LED1to LED3 ON. Third press increases the volume more,
also, LED1to LED4 ON. Fourth press increases the volume to
the maximum. Also, LED1 to LED5 ON.
When Press PF11 = It decrease the volume, also LED1 to LED
4 ON. Also, the LEDs decrease as well.
In Initialize.c, we include BF533 Flags file, then we added
*pFlashA_PortA_Dir = 0x1 so it can work as an input. Then we
added pFlashA_PortB_Dir = 0x3f so it can be an output.
In the ISR file we had to define our input buttons by using the
code: EX_INTERRUPT_HANDLER (Sport0_RX_ISR)
Main.c goes through the initialization functions.
The filters should be exported in Float format. 16 bit
integer and fractional filtering can be done for extra credit.
.