/*!
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/*!
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ZTEX Firmware Kit for EZ-USB Microcontrollers
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ZTEX Firmware Kit for EZ-USB FX2 Microcontrollers
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Copyright (C) 2009-2010 ZTEX e.K.
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Copyright (C) 2009-2011 ZTEX GmbH.
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http://www.ztex.de
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http://www.ztex.de
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 3 as
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it under the terms of the GNU General Public License version 3 as
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published by the Free Software Foundation.
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published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, see http://www.gnu.org/licenses/.
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along with this program; if not, see http://www.gnu.org/licenses/.
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!*/
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!*/
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/*
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/*
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supports AT45D* Flash on Port E
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supports AT45D* Flash on Port E
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*/
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*/
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#ifndef[ZTEX_FLASH2_H]
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#ifndef[ZTEX_FLASH2_H]
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#define[ZTEX_FLASH2_H]
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#define[ZTEX_FLASH2_H]
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#define[@CAPABILITY_FLASH;]
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#define[@CAPABILITY_FLASH;]
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#define[FLASH_SI_BIT][6]
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#define[FLASH_SI_BIT][6]
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#define[FLASH_SO_BIT][4]
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#define[FLASH_SO_BIT][4]
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#define[FLASH_CLK_BIT][5]
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#define[FLASH_CLK_BIT][5]
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#ifeq[PRODUCT_IS][UFM-1_1]
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#ifeq[PRODUCT_IS][UFM-1_1]
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#define[FLASH_CS_BIT][3]
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#define[FLASH_CS_BIT][3]
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//#warning[FLASH_CS_BIT=3]
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//#warning[FLASH_CS_BIT=3]
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#else
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#else
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#define[FLASH_CS_BIT][7]
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#define[FLASH_CS_BIT][7]
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//#warning[FLASH_CS_BIT=7]
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//#warning[FLASH_CS_BIT=7]
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#endif
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#endif
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xdata BYTE flash_buffer = 1; // current buffer 1
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__xdata BYTE flash_buffer = 1; // current buffer 1
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xdata BYTE flash_bufferModified = 0; // 1 indicates that the current flash page needs to be reprogrammeded
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__xdata BYTE flash_bufferModified = 0; // 1 indicates that the current flash page needs to be reprogrammeded
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xdata WORD flash_page = 0xffff; // current flash page
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__xdata WORD flash_page = 0xffff; // current flash page
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xdata WORD flash_nextPage = 0xffff; // next flash page (usually flashPage+1)
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__xdata WORD flash_nextPage = 0xffff; // next flash page (usually flashPage+1)
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xdata WORD flash_maxPage = 0; // next flash page (usually flashPage+1)
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__xdata WORD flash_maxPage = 0; // next flash page (usually flashPage+1)
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xdata WORD flash_pageSize = 528; // page size (512 or 528)
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__xdata WORD flash_pageSize = 528; // page size (512 or 528)
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xdata BYTE flash_register[4]; // used to store register content
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__xdata BYTE flash_register[4]; // used to store register content
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/* *********************************************************************
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/* *********************************************************************
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***** flash_setPage *************************************************
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***** flash_setPage *************************************************
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********************************************************************* */
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********************************************************************* */
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/* set the current page, i.e. executes the following steps
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/* set the current page, i.e. executes the following steps
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1. wait if busy
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1. wait if busy
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2. read the desired page from the flash array into the new buffer
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2. read the desired page from the flash array into the new buffer
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3. write the old buffer to the flash array (if modified)
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3. write the old buffer to the flash array (if modified)
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*/
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*/
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static void flash_setPage(WORD page)
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static void flash_setPage(WORD page)
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{
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{
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flash_nextPage = page + 1;
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flash_nextPage = page + 1;
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}
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}
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/* *********************************************************************
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/* *********************************************************************
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***** flash_write ***************************************************
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***** flash_write ***************************************************
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********************************************************************* */
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********************************************************************* */
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/* writes <bytes> bytes at address <addr> to the current buffer starting at <offs>.
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/* writes <bytes> bytes at address <addr> to the current buffer starting at <offs>.
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If <setNextPage> = 1 the next page (defined by <flash_nextPage> is set automatically
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If <setNextPage> = 1 the next page (defined by <flash_nextPage> is set automatically
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*/
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*/
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static void flash_write(WORD addr, WORD bytes, WORD offs, BYTE setNextPage)
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static void flash_write(WORD addr, WORD bytes, WORD offs, BYTE setNextPage)
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{
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{
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addr = 0;
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addr = 0;
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bytes = 0;
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bytes = 0;
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offs = 0;
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offs = 0;
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setNextPage = 0;
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setNextPage = 0;
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}
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}
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/* *********************************************************************
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/* *********************************************************************
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***** flash_write ***************************************************
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***** flash_write ***************************************************
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********************************************************************* */
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********************************************************************* */
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static void flash_readRegister(BYTE cmd)
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static void flash_readRegister(BYTE cmd)
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{
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{
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BYTE oe,b,i,j;
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BYTE oe,b,i,j;
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b = OEE & ( ~( (1 << FLASH_SO_BIT) | (1 << FLASH_SI_BIT) | (1 << FLASH_CLK_BIT) | (1 << FLASH_CS_BIT) ) );
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b = OEE & ( ~( (1 << FLASH_SO_BIT) | (1 << FLASH_SI_BIT) | (1 << FLASH_CLK_BIT) | (1 << FLASH_CS_BIT) ) );
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oe = IOE & b;
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oe = IOE & b;
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IOE = oe | (1 << FLASH_CS_BIT); // CS = 1
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IOE = oe | (1 << FLASH_CS_BIT); // CS = 1
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OEE = b | (1 << FLASH_SI_BIT) | (1 << FLASH_CLK_BIT) | (1 << FLASH_CS_BIT);
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OEE = b | (1 << FLASH_SI_BIT) | (1 << FLASH_CLK_BIT) | (1 << FLASH_CS_BIT);
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IOE = oe; // CS = 0
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IOE = oe; // CS = 0
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// CLK=0
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// CLK=0
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for ( i=0; i<8; i++ ) {
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for ( i=0; i<8; i++ ) {
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IOE = b = oe | ((cmd & 128) >> (7-FLASH_SI_BIT)); // CLK = 0, SI=x
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IOE = b = oe | ((cmd & 128) >> (7-FLASH_SI_BIT)); // CLK = 0, SI=x
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IOE = b | (1 << FLASH_CLK_BIT); // CLK = 1, SI=x
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IOE = b | (1 << FLASH_CLK_BIT); // CLK = 1, SI=x
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cmd <<= 1;
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cmd <<= 1;
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}
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}
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for ( j=0; j<4; j++ ) {
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for ( j=0; j<4; j++ ) {
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// CLK = 1
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// CLK = 1
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b = 0;
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b = 0;
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for ( i=0; i<8; i++ ) {
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for ( i=0; i<8; i++ ) {
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IOE = oe; // CLK = 0, SO=x
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IOE = oe; // CLK = 0, SO=x
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b = (b << 1) | ((IOE >> FLASH_SO_BIT) & 1);
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b = (b << 1) | ((IOE >> FLASH_SO_BIT) & 1);
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IOE = oe | (1 << FLASH_CLK_BIT); // CLK = 1
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IOE = oe | (1 << FLASH_CLK_BIT); // CLK = 1
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}
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}
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flash_register[j]=b;
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flash_register[j]=b;
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}
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}
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IOE = oe | (1 << FLASH_CS_BIT); // CS = 1
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IOE = oe | (1 << FLASH_CS_BIT); // CS = 1
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}
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}
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/* *********************************************************************
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/* *********************************************************************
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***** EP0 vendor request 0x40 ***************************************
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***** EP0 vendor request 0x40 ***************************************
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********************************************************************* */
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********************************************************************* */
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ADD_EP0_VENDOR_REQUEST((0x40,,
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ADD_EP0_VENDOR_REQUEST((0x40,,
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flash_readRegister(SETUPDAT[2]);
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flash_readRegister(SETUPDAT[2]);
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EP0BUF[0] = flash_register[0];
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EP0BUF[0] = flash_register[0];
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EP0BUF[1] = flash_register[1];
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EP0BUF[1] = flash_register[1];
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EP0BUF[2] = flash_register[2];
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EP0BUF[2] = flash_register[2];
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EP0BUF[3] = flash_register[3];
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EP0BUF[3] = flash_register[3];
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EP0BCH = 0;
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EP0BCH = 0;
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EP0BCL = 4;
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EP0BCL = 4;
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,,));;
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,,));;
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#endif /*ZTEX_FLASH2_H*/
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#endif /*ZTEX_FLASH2_H*/
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