PATRUCCO - VisSim: VisSim/TI C2000 Rapid Prototyper

This movie gives an introduction to the VisSim/Fixed-Point block-set which is an integral part of the VisSim/TI C2000 Rapid Prototyper. All the fixed point blocks are reviewed. Key capabilities such as "autoscaling" -- automatic and optimized setting of radix point on each fixed point block / operation, and global over-ride of target word-size are introduced.

Fixed-Point Simulation and Autoscaling Movie

download

In this movie, VisSim/TI C2000 Rapid Prototyper is used to perform fixed-point simulations of actual controllers / algorithms. At a simulation level, this allows users to trap overflow problems resulting from incorrect radix settings on fixed-point blocks / operations; and use the "autoscaling" feature to quickly optimize the radix setting on each fixed point block / operation.

Fixed-Point DIL Simulation and Code Generation Movie

download

This movie focuses on DSP-in-loop simulation (DIL) capabilities and fixed point code generation capabilities of the VisSim/TI C2000 Rapid Prototyper using real control examples. The process of setting up a DIL system simulation, the process of generating fixed point C-code, and the anatomy of a generated code segment are examined in detail.

Fixed-Point Code Generation for VisSim/TI C2000 Rapid Prototyper Movie

download

The process of generating, compiling, and downloading fixed-point code from a controller / algorithm to a TI F2407 EVM using the VisSim/TI C2000 Rapid Prototyper is covered in this movie. Once the code is downloaded and executing on the EVM, VisSim/TI C2000 Rapid Prototyper can be used interactively in real-time to change system inputs, observe system behavior and validate the controller or algorithm executing on the EVM.

TI Digital Motor Control (DMC) Block Set Overview Movie

download

A fundamental component of the VisSim/TI C2000 Rapid Prototyper is the availability of digital motor control (DMC), originally written in C2xx assembler, in an easy-to-use block format. Texas Instruments has updated these blocks and reconfigured them in C-Callable-Assembly (CCA) format. This format allows the C2xx assembler code to be called from within a standard C program, and be compiled together with these external C programs and downloaded to the DSP target.

The DMC blocks can be combined with other VisSim blocks to create complete and sophisticated motion control prototypes. In the initial release, two major motor types - AC Induction Motor and Brushless DC (Permanent Magnet Synchronous) Motor - are included. DMC blocks related to other motor types will be added in future releases.

To further enrich the power and usability of the VisSim/TI C2000 Rapid Prototyper, a simulation mode has been added to many DMC blocks. Such dual mode blocks can be used as normal VisSim blocks during simulation. In simulation mode, the DMC blocks accept inputs and parameters and behave like real DMC blocks. However, all the execution takes place on the PC host: no code is generated or downloaded to the DSP target. In the simulation mode, the DMC blocks execute C code that mimics the original CCA instructions.

When these blocks are included in a set of blocks that is to be downloaded, VisSim Code Generator generates C function calles to the original C-Callable-Assembly (CCA) functions such that for the DMC blocks, the code that is generated and downloaded to the DSP is TI's hand-written, optimized, and tested assembler code.

VisSim - TI Code Composer Studio (CCS) Plugin Movie

download

The VisSim - TI Code Composer Studio (CCS) Plugin is designed for users that:

Develop large or sophisticated motion control applications;
Need to integrate subsystems prototyped in VisSim with other code or user interfaces;
Prefer TI Code Composer Studio / eXpressDSP integrated development environment (IDE).

Using the VisSim - TI Code Composer Studio (CCS) Plugin, a user can prototype a controller / system using the VisSim/TI C2000 Rapid Prototyper and generate fixed-point C code and/or calls to TI DMC block library, and incorporate this code in a TI Code Composer Studio / eXpressDSP project. Typically this is needed when you are integrating the system prototype with code from other sources, or with user interface devices and drivers, such as touch panels and LCD displays. From that point, you can use the powerful compilation, download, and debug utilities of the CCS IDE on the entire project, including the code and function calls automatically generated by the VisSim/TI C2000 Rapid Prototyper.