Cypress Semiconductor NoBL CY7C1472V33 Guía de usuario descargar pdf (Pagina 45)

ZestSC1 User Guide

CONFIDENTIAL Page 45 of 57

ZestSC1RegisterImage

ZESTSC1_STATUS ZestSC1RegisterImage(void *Buffer,

unsigned long BufferLength,

ZESTSC1_IMAGE *Image);

Parameters

Buffer Buffer containing FPGA configuration data. Normally

generated by Bit2C utility.

BufferLength Length, in bytes, of the configuration data.

Image Pointer to location to receive FPGA configuration image.

Return Value

ZESTSC1_SUCCESS Function succeeded

ZESTSC1_OUT_OF_MEMORY Not enough memory to complete the

requested operation

ZESTSC1_INVALID_PART_TYPE Illegal FPGA part type

Description

ZestSC1RegisterImage creates an FPGA configuration image from an array of raw

configuration data. The FPGA can be configured from this image by calling

ZestSC1Configure.

Buffer points to the start of the raw configuration data and BufferLength is the number of

bytes of configuration data to use. The Bit2C utility supplied on the ZestSC1 installation

disk provides a simple way to generate compatible C arrays from .bit files.

Image is a pointer to a location to receive the configuration image handle. This handle

can be used in future calls to ZestSC1Configure. The handle should be freed by calling

ZestSC1FreeImage when the configuration image is no longer needed.

ZestSC1RegisterImage and ZestSC1Configure allow .bit files to be linked into host

executables to reduce the number of host files required. Refer to

ZestSC1ConfigureFromFile, ZestSC1LoadImage and ZestSC1Configure for details

of how to configure the FPGA from configuration data in a file.

For example:

extern void *Buffer;

extern unsigned long Length;

ZESTSC1_IMAGE Image;

ZESTSC1_HANDLE Handle;

/* Register the FPGA configuration image */

ZestSC1RegisterImage(Buffer, Length, &Image);

/* Other initialization operations here */

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Cypress Semiconductor NoBL CY7C1472V33 Guía de usuario Pagina 45