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9 Host Utilities

A number of utilities are provided with the ZestSC1 support library. These can be found

in the Utils sub-directory of the support package installation.

9.1 Bit2C

Bit2C.exe converts Xilinx .bit FPGA configuration files to C header files. The C header file

contains a static array definition with the raw data from the .bit file. This array can be

passed to the ZestSC1RegisterImage function to obtain a handle suitable for the

ZestSC1Configure function. In this way, .bit files can be linked into your application

executable to avoid having multiple files.

For example:

Bit2C config.bit array.c

This will convert the config.bit file generated by the Xilinx place and route tools into a

file called array.c which contains definitions of the variables arrayLength and

arrayImage. You can then configure the FPGA by calling the following functions:

extern void *arrayImage;

extern unsigned long arrayLength;

ZESTSC1_IMAGE Image;

ZESTSC1_HANDLE Handle;

/* Register the FPGA configuration image */

ZestSC1RegisterImage(arrayImage, arrayLength, &Image);

/* Open a card with ID of 1 */

ZestSC1OpenCard(1, &Handle);

/* Configure the FPGA from the image */

ZestSC1Configure(Handle, Image);

9.2 SetID

Each ZestSC1 card contains a non-volatile ID to allow identification of the card in a

system with multiple ZestSC1’s attached. The ID is passed to the ZestSC1OpenCard

function to obtain a handle to the card.

For example, a system may consist of a ZestSC1 card attached to a camera and a second

ZestSC1 connected to a monitor. Setting the ID of the first card to 1 and the second

card to 2 will allow the host program to distinguish between the two cards.

SetID.exe programs the ID of a card from the command line. Run SetID.exe from a

command prompt and follow the on-screen instructions.

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Cypress Semiconductor NoBL CY7C1472V33 Guía de usuario Pagina 26