R e a d m e . t x t 

ADSP-BF537 EZ-KIT FFT demo

Date Modified:		11.1.07
			1/31/06
			11/16/05
			
Test history:
	- Last tested 1 November 07
	- VisualDSP 5.0 Update 1
	- ADSP-BF537 EZ-Kit Lite Rev 2.1
_____________________________________________________________________

C o n t e n t s 

I.    Overview
II.   Required Hardware
III.  Operation Description
IV.   Deliverables
V.    Board settings


I. Overview
The BTC FFT demo demonstrates transfering data from the Blackfin BF537 Ez-Kit 
over Background Telemetry Channels.  The FFT demo program generates a input 
sin wave that increases in frequency over time.  A FFT is performed on the 
input signal.  The input and output data is transferred to the IDDE over BTC.

II. Required Hardware:
1) Blackfin BF537 Ez-Kit.
2) HP-PCI ICE, HP-USB ICE, or USB cable (for onboard USB debug agent).

III.  Operation Description
1) Start the IDDE.
2) Select a PCI, USB or BF537 Ez-Kit session.
3) Build and load the DSP program.
4) Restore the plots (View->Debug Windows->Plot->Restore) fft_in.vps and fft_out.vps
5) Open a BTC Memory Window (View->Debug Windows->BTC Memory)
6) Right-click on the plot and select "Auto Refresh Settings..."
   Select: Use BTC.
   Select: Transfer an array of data.
   Set refresh rate to 150.
7) Run the DSP Program.
8) Right-click on the plots and select "Auto Refresh"
9) In the BTC Memory window select FREQ STEP SIZE.  
   Right-Click and change the format to Hex32.  
   Change the value (0->100) to increase/decrease the frequency step size. 
	
IV.   Deliverables

+---Blackfin
    +---Examples
    ¦   +---ADSP-BF537 EZ-KIT Lite
    ¦       +---Background_Telemetry 
    |			+---fftDemo
    |				btc_fft_demo.dpj
    |				btc_fft_demo.c
    |				fft_in.vps
    |				fft_out.vps
    |
    +---include
    |	btc.h
    |	btc_struct.h
    +---lib
    	libbtc532.dlb

V. Board settings

	Switch settings:
	SW4: all ON
	SW3: all OFF
	SW2: all ON
	SW8: ON,ON,OFF,OFF,OFF,OFF
	SW1: all OFF
	SW7: all ON
	SW6: all ON
	SW5: all ON

	Jumper settings:
	JP9: installed
	JP3: 1 and 2 installed
	JP5: installed
	JP12: not installed
	JP6: not installed
	JP8: not installed