Ibm Data Capture Board CLC-CAPT-PCASM Manuale Utente

© 1999 National Semiconductor Corporation http://www.national.com Printed in the U.S.A. N Section I. Introduction The CLC3790093 Data Capture Board

http://www.national.com 10#4 & #5 as indicated in the Histogram Max Targettable. Due to a high data resolution and relativelyslow data rate, a rel

11 http://www.national.com** From the Windows Start Programs menu, launchthe Capture program (it’s inside the C:\nsc folder).Right click inside the Co

http://www.national.com 12**DRCS_Serial “DRCS_ser_fft.m” is the scriptintended for analysis of the DRCS 24-bit serial out-put data. Fsample is set to

13 http://www.national.comCLC-CAPT-PCASM Evaluation Board - Layer 1 CLC-CAPT-PCASM Evaluation Board - Layer 2CLC-CAPT-PCASM Evaluation Board - Layer 3

http://www.national.com 14U1FPGA1208-pin TQFPEPF10K20CLC-CAPT-PCASM Schematic Diagram

http://www.national.com 15Customer Design Applications SupportNational Semiconductor is committed to design excellence. For sales, literature and tech

http://www.national.com 2 Hardware 1. CLC3790093 Data Capture Board (CLC-CAPT-PCASM)2. CLC Evaluation Board. Several ADC products canbe evaluated wi

3 http://www.national.com complement number can be converted to offset binary byinverting the MSB. This is the first step in the Matlabroutine for FFT

http://www.national.com 4 SMA Connectors The output clock SMA connector provides a signal thatcan be used to phase lock a signal source. Thefrequenc

5 http://www.national.com Verify the connections and, if necessary, try the otherCOM port. (Note that you must have a clock applied tothe ADC Evaluat

http://www.national.com 6 To look at the data that you have just captured, left clickon the “Plot_Data” button. If you have collected data witha 12-b

7 http://www.national.com In this example, we have captured data from a 12-BitADC. Remember that the data that we are plotting is thebin count inform

http://www.national.com 8 24-bit words via the serial port as 96K bytes. Each wordis interpreted as a 24-bit two’s complement integer andstored as 32

9 http://www.national.comThe “Configure I/O” button opens the user port optionmenu window. Clicking the left mouse button selects thedesired port (the