Subversion Repositories usb_fpga_1_15

/*!

/*!

   flashdemo -- demo for Flash memory access from firmware and host software for ZTEX USB-FPGA Module 1.2

   flashdemo -- demo for Flash memory access from firmware and host software for ZTEX USB-FPGA Module 1.2

   http://www.ztex.de

   http://www.ztex.de

   This program is free software; you can redistribute it and/or modify

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License version 3 as

   it under the terms of the GNU General Public License version 3 as

   published by the Free Software Foundation.

   published by the Free Software Foundation.

   This program is distributed in the hope that it will be useful, but

   This program is distributed in the hope that it will be useful, but

   WITHOUT ANY WARRANTY; without even the implied warranty of

   WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

   General Public License for more details.

   General Public License for more details.

   You should have received a copy of the GNU General Public License

   You should have received a copy of the GNU General Public License

   along with this program; if not, see http://www.gnu.org/licenses/.

   along with this program; if not, see http://www.gnu.org/licenses/.

!*/

!*/

#include[ztex-conf.h]   // Loads the configuration macros, see ztex-conf.h for the available macros

#include[ztex-conf.h]   // Loads the configuration macros, see ztex-conf.h for the available macros

#include[ztex-utils.h]  // include basic functions and variables

#include[ztex-utils.h]  // include basic functions and variables

// select ZTEX USB FPGA Module 1.2 as target

// select ZTEX USB FPGA Module 1.2 as target

IDENTITY_UFM_1_2(10.11.0.0,0);

IDENTITY_UFM_1_2(10.11.0.0,0);

// enable Flash support

// enable Flash support

ENABLE_FLASH;

ENABLE_FLASH;

// this product string is also used for identification by the host software

// this product string is also used for identification by the host software

#define[PRODUCT_STRING]["Flash demo for UFM 1.2"]

#define[PRODUCT_STRING]["Flash demo for UFM 1.2"]

__code char flash_string[] = "Hello World!";

__code char flash_string[] = "Hello World!";

// include the main part of the firmware kit, define the descriptors, ...

// include the main part of the firmware kit, define the descriptors, ...

#include[ztex.h]

#include[ztex.h]

void main(void)

void main(void)

{

{

    __xdata DWORD sector;

    __xdata DWORD sector;

    init_USB();                                         // init everything

    init_USB();                                         // init everything

    if ( flash_enabled ) {

    if ( flash_enabled ) {

        flash_read_init( 0 );                            // prepare reading sector 0

        flash_read_init( 0 );                            // prepare reading sector 0

        flash_read((__xdata BYTE*) &sector, 4);         // read the number of last sector 

        flash_read((__xdata BYTE*) &sector, 4);         // read the number of last sector 

        flash_read_finish(flash_sector_size - 4);       // dummy-read the rest of the sector + finish read operation

        flash_read_finish(flash_sector_size - 4);       // dummy-read the rest of the sector + finish read operation

        sector++;

        sector++;

        if ( sector > flash_sectors || sector == 0 ) {

        if ( sector > flash_sectors || sector == 0 ) {

            sector = 1;

            sector = 1;

        }

        }

        flash_write_init( 0 );                                   // prepare writing sector 0

        flash_write_init( 0 );                                   // prepare writing sector 0

        flash_write((__xdata BYTE*) &sector, 4);                // write the current sector number

        flash_write((__xdata BYTE*) &sector, 4);                // write the current sector number

        flash_write_finish_sector(flash_sector_size - 4);       // dummy-write the rest of the sector + CRC

        flash_write_finish_sector(flash_sector_size - 4);       // dummy-write the rest of the sector + CRC

        flash_write_finish();                                   // finish write operation

        flash_write_finish();                                   // finish write operation

        flash_write_init( sector );                                             // prepare writing sector sector

        flash_write_init( sector );                                             // prepare writing sector sector

        flash_write((__xdata BYTE*) flash_string, sizeof(flash_string));        // write the string 

        flash_write((__xdata BYTE*) flash_string, sizeof(flash_string));        // write the string 

        flash_write_finish_sector(flash_sector_size - sizeof(flash_string));    // dummy-write the rest of the sector + CRC

        flash_write_finish_sector(flash_sector_size - sizeof(flash_string));    // dummy-write the rest of the sector + CRC

        flash_write_finish();                                                   // finish write operation

        flash_write_finish();                                                   // finish write operation

    }

    }

    while (1) { }                                       //  twiddle thumbs

    while (1) { }                                       //  twiddle thumbs

}

}