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SPPDF-01 Development Suite
User’s Manual
FCL Batch Mode Operation
Single Set Coefficient
Appendix A - Example 4
11. Enter the In(put) Buffer Size: Enter 512 (bytes) as the size of the input buffer for the
selected communication port. Remember to drop the units when entering this parameter.
12. Load the single set of Coefficients: CLICK Program to start the loading process of the
single set of coefficients from the workspace into the SPPDM-01’s external memory loca-
tion. A popup window with a bar will indicate an active system condition. After a few sec-
onds of data translating and formatting, the Software Plug (Appendix B) takes over and
starts the communication protocol.
Wait for the communication protocol process to finish. After successful completion of the
loading process, the workspace will show successful memory verification. The Message
indicator will show the number of filters loaded. For this example it is one (1).
13. Inspect results: At the MatLab
TM
environment prompt type: whos. The system will
respond with the information for the coefficients variable:
Name
Size
Bytes
Class
coefficients
1x320
2560
double array (global)
Grand total is 320 elements using 2560bytes
14. User can work with the coefficients as desired. For example: Load them into an SPPDM-
01, mathematically transform them, inspect them, etc. Remember - If the workspace is
cleared or exited, the coefficient data is lost unless the variables or the workspace are
saved. Follow MatLab
TM
instructions for performing these tasks.
15. Reboot the SPPDM-01 unit: Turn the power to the SPPDB-01 evaluation board OFF.
When the unit is turned ON, the last entered set of coefficients is loaded from the
SPPDM-01’s external memory into the DSP internal memory where it is interpreted as
valid FIR filter characteristics in the frequency domain.
16. Inspect or work with the SPPDM-01’s FIR filter: The filter may now be selected in
Manual Mode Operation, Appendix A - Example 1 (with DIP switches), or automatically
(with a computer program). Select the filter by setting the selection code to the desired fil-
ter location (number). This will set the SPPDB-01 evaluation board and the SPPDM-01 to
work as a FIR filter possessing the frequency domain characteristics derived from the ini-
tial relative specifications.
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