src/fpga_loader.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include "startup.h"
#include "fpga_loader.h"
#include "bf52x_spi.h"
#include "ADP5588_Driver.h"
#include "crc.h"
#include "bf52x_uart.h"
#include "spi_flash.h"
#include "tll6527_core_timer.h"

Include dependency graph for fpga_loader.c:

Defines
#define	FPGA_SEC_SIZE   (0x40000)
	Contains the FLASH start address for default FPGA load.
#define	FPGA_DEFAULT   (0x80000)
#define	FPGA_UART   (0xD80000)
#define	FPGA_DATA_LENGTH   (283776)
	Size of the FPGA image.
#define	FPGA_CLOCK_SPEED   5000000
Functions
int	transfer (unsigned char *mem, unsigned long len)
int	fpga_programmer (unsigned char *memaddr, unsigned long length)
int	copyToRam (unsigned long Flashaddr, unsigned char *Ramaddr, unsigned long len)
int	fpga_inputEnable (void)
	enable the inputs from only if the bits 0-7 are output and 8-15 are inputs.
int	fpga_loader (crc load_crc)
	Loads the fpga specified by the crc.
Variables
unsigned char	fpga_image [FPGA_DATA_LENGTH]
	FPGA images from the flash will be copied to this this temperory array for computing the CRC.

---

Define Documentation

#define FPGA_CLOCK_SPEED   5000000

#define FPGA_DATA_LENGTH   (283776)

Size of the FPGA image.

#define FPGA_DEFAULT   (0x80000)

#define FPGA_SEC_SIZE   (0x40000)

Contains the FLASH start address for default FPGA load.

#define FPGA_UART   (0xD80000)

---

Function Documentation

int copyToRam	(	unsigned long	Flashaddr,
		unsigned char *	Ramaddr,
		unsigned long	len
	)

int fpga_inputEnable

(

void

)

enable the inputs from only if the bits 0-7 are output and 8-15 are inputs.

returns if sucessful or terminates.

Test if 0-7 bits are outputs

reinitialize

int fpga_loader

(

crc

load_crc

)

Loads the fpga specified by the crc.

Parameters:

load_crc

The crc of the fpga to be loaded. returns: 0 on sucess or error code.

Initializa the CRC engine.

Find the address which matches the CRC. If there is not match while returns with null

Copy the FPGA from FLASH to RAM

Compute the CRC of the FPGA

Check if the memory has the required CRC

Continue with the other address

Load the fpga

int fpga_programmer	(	unsigned char *	memaddr,
		unsigned long	length
	)

int transfer	(	unsigned char *	mem,
		unsigned long	len
	)

---

Variable Documentation

unsigned char fpga_image[FPGA_DATA_LENGTH]

FPGA images from the flash will be copied to this this temperory array for computing the CRC.

---