programfpga.c

ADI blackfin processor BF527 Ezkti test driver

/*******************************************************************************/
/*                                                                             */
/*   (C) Copyright 2005 - Analog Devices, Inc.  All rights reserved.           */
/*                                                                             */
/*    FILE:     M a i n ( )                                                    */
/*                                                                             */
/*    CHANGES:  1.00.0  - initial release    								   */
/*																			   */
/*    PURPOSE:  VisualDSP++ "Flash Programmer" fpga driver for use with the    */
/*              ADSP-BF537 EZ-KIT Lite with the FPGA Extender board attached   */
/*                                                                             */
/*******************************************************************************/


#include <services/services.h>	// system services includes
#include <drivers/adi_dev.h> 	// device manager includes
#include <stdlib.h>				// malloc includes


#include "adi_spartan3.h"
#include "util.h"			// EZ-Kit includes

section ("fpga")
#include "fpga_image.h"

//----- g l o b a l s -----//
void SetupDevice(void);
int WriteData( unsigned long ulStart, long lCount, long lStride, int *pnData );

	
//------------- m a i n ( ) ----------------//

int PROGRAM_FPGA()
{
		
	int nOffset = 0;
	int nCount = 0x625F8;
	int nStride = 1;
	int i = 0;
	int index = 0;
	unsigned int iResult;

	// setup the fpga so the DSP can access it
	SetupDevice();
	
	iResult = WriteData( nOffset, sizeof(fpga_image), nStride, (int *)fpga_image );
	

	return iResult;
}



//----------- S e t u p D e v i c e ( ) ----------//
//
//  PURPOSE
// 		Perform necessary setup for the processor to talk to the
//		device such as external memory interface registers, etc.
//
//  RETURN VALUE
//  	ERROR_CODE - value if any error occurs during Opcode scan
//  	NO_ERR     - otherwise

void SetupDevice(void)
{
	*pEBIU_AMGCTL = 0xFF;	
}



//----------- W r i t e D a t a  ( ) ----------//
//
//  PURPOSE
//  	Write a buffer to fpga.
//
// 	INPUTS
// 		unsigned long ulStart - offset to start the writes at
//		long lCount - number of elements to write, in this case bytes
//		long lStride - number of locations to skip between writes
//		int *pnData - pointer to data buffer
//
//  RETURN VALUE
//  	ERROR_CODE - value if any error occurs during writing
//  	NO_ERR     - otherwise
//
//  CHANGES
//  	9-28-2005 Created

int WriteData( unsigned long ulStart, long lCount, long lStride, int *pnData )
{
	int iResult = 0;
	ADI_DEV_1D_BUFFER		WriteBuff;	// buffer pointer


	WriteBuff.ElementCount = lCount;
	WriteBuff.Data 	= (void *)pnData;
	WriteBuff.pNext = NULL;
	WriteBuff.pAdditionalInfo 	= (void *)&ulStart;
	iResult = (int) adi_dev_Write( DevHandleSpartan3, ADI_DEV_1D, (ADI_DEV_BUFFER *)&WriteBuff);

	// return the appropriate error code
	return iResult;
}