What is DSP Designer?
DSP Designer is a revolutionary breakthrough for DSP designers using Intusoft's ICAP/4 tool suite to make an integrated
simulation/DSP workbench that includes the boxes shown on the left:
does DSP Designer Work?
The IsSpice4 matrix solution is used to extract the set of difference equations that describe the DSP control system. These equations are re-arranged for optimal multiply-accumulate (MAC) instruction execution. Special plug-ins for different vendors' DSPs generate C and assembly level code that can be added to a software project. A unified scaling approach is documented that shows how to scale the simulation and calculate the correct DSP coefficients for integer, mixed or fractional scaling.
Example circuits are given for target designs that include a modified proportional- integral-differential MPID, design. A novel concept for current feedback the Virtual Current Controller is also developed. Both of these controllers are implemented in hardware using Microchip and Texas Instruments test beds.
Simulations are normally
performed for AC, DC and TRAN cases. In order to provide the same capability
in the DSP, Real Time (RT) code is
provided. This links with a serial interface to the DSP to provide this
capability. The most challenging part is the incorporation of a transfer
function analyzer, TFA, inside the DSP. The
TFA uses the single injection
modeling technique inside the ICAP/4 software. IntuScope scripts are
used to control the DSP serial interface, and using the RT code, the automated
scripts make and display the measurement results.
A new data acquisition plugin has been added to IntuScope so that lab oscilloscope measurements can be transferred by a serial link into an IntuScope waveform for viewing.
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