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/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */
/*! \page License
* Copyright (C) 2009, H&D Wireless AB All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name of H&D Wireless AB may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY H&D WIRELESS AB ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY AND
* SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <string.h>
#include "compiler.h"
#include "preprocessor.h"
#include "board.h"
#include "power_clocks_lib.h"
#include "gpio.h"
#include "spi.h"
#include "conf_at45dbx.h"
#include "at45dbx.h"
#include "clocks.h"
void flash_init(void)
{
static const gpio_map_t AT45DBX_SPI_GPIO_MAP = {
{ AT45DBX_SPI_SCK_PIN, AT45DBX_SPI_SCK_FUNCTION },
{ AT45DBX_SPI_MISO_PIN, AT45DBX_SPI_MISO_FUNCTION },
{ AT45DBX_SPI_MOSI_PIN, AT45DBX_SPI_MOSI_FUNCTION },
{ AT45DBX_SPI_NPCS2_PIN, AT45DBX_SPI_NPCS2_FUNCTION },
};
spi_options_t spiOptions = {
.reg = AT45DBX_SPI_FIRST_NPCS,
.baudrate = AT45DBX_SPI_MASTER_SPEED,
.bits = AT45DBX_SPI_BITS,
.spck_delay = 0,
.trans_delay = 0,
.stay_act = 1,
.spi_mode = 0,
.modfdis = 1
};
gpio_enable_module(AT45DBX_SPI_GPIO_MAP,
sizeof(AT45DBX_SPI_GPIO_MAP) /
sizeof(AT45DBX_SPI_GPIO_MAP[0]));
spi_initMaster(AT45DBX_SPI, &spiOptions);
spi_selectionMode(AT45DBX_SPI, 0, 0, 0);
spi_enable(AT45DBX_SPI);
/* put up flash reset pin */
gpio_set_gpio_pin(AT45DBX_CHIP_RESET);
at45dbx_init(spiOptions, FPBA_HZ);
}
void flash_write(U32 addr, const U8* buf, U32 len)
{
U32 sector = addr / AT45DBX_SECTOR_SIZE;
U32 i;
Assert(addr % AT45DBX_SECTOR_SIZE == 0);
at45dbx_write_open(sector);
for (i = 0; i < len; i++)
at45dbx_write_byte(buf[i]);
at45dbx_write_close();
}
void flash_read(U32 addr, U8* buf, U32 len)
{
U32 sector = addr / AT45DBX_SECTOR_SIZE;
U32 i;
Assert(addr % AT45DBX_SECTOR_SIZE == 0);
at45dbx_read_open(sector);
for (i = 0; i < len; i++)
buf[i] = at45dbx_read_byte();
at45dbx_read_close();
}
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