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ZTEX |
/*!
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ZTEX Firmware Kit for EZ-USB Microcontrollers
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Copyright (C) 2008-2009 ZTEX e.K.
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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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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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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along with this program; if not, see http://www.gnu.org/licenses/.
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!*/
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/*
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Various utility routines
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*/
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#ifndef[ZTEX_UTILS_H]
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#define[ZTEX_UTILS_H]
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#define[bmBIT0][1]
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#define[bmBIT1][2]
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#define[bmBIT2][4]
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#define[bmBIT3][8]
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#define[bmBIT4][16]
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#define[bmBIT5][32]
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#define[bmBIT6][64]
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#define[bmBIT7][128]
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#define[NOP;][_asm
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nop
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_endasm;
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]
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#define[MSB(][)][((BYTE)(((unsigned short)($0)) >> 8))]
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#define[LSB(][)][((BYTE)($0))]
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#define[HI(][)][((BYTE)(((unsigned short)($0)) >> 8))]
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#define[LO(][)][((BYTE)($0))]
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typedef unsigned char BYTE;
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typedef unsigned short WORD;
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typedef unsigned long DWORD;
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/* *********************************************************************
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***** include the basic functions ***********************************
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********************************************************************* */
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#include[ezregs.h]
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#include[ezintavecs.h]
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/* *********************************************************************
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***** wait **********************************************************
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********************************************************************* */
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void wait(WORD short ms) { // wait in ms
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WORD i,j;
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for (j=0; j<ms; j++)
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for (i=0; i<1200; i++);
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}
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/* *********************************************************************
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***** uwait *********************************************************
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********************************************************************* */
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void uwait(WORD short us) { // wait in 10µs steps
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WORD i,j;
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for (j=0; j<us; j++)
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for (i=0; i<120; i++);
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}
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/* *********************************************************************
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***** MEM_COPY ******************************************************
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********************************************************************* */
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// copies 1..256 bytes
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void MEM_COPY1_int() __naked {
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_asm
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020001$:
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mov _AUTOPTRSETUP,#0x07
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mov dptr,#_XAUTODAT1
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movx a,@dptr
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mov dptr,#_XAUTODAT2
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movx @dptr,a
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djnz r2, 020001$
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ret
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_endasm;
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}
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/*
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! no spaces before/after commas allowed !
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This will work too:
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MEM_COPY1(fpga_checksum,EP0BUF+1,6);
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*/
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#define[MEM_COPY1(][,$1,$2);][{
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_asm
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mov _AUTOPTRL1,#(_$0)
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mov _AUTOPTRH1,#((_$0) >> 8)
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mov _AUTOPTRL2,#(_$1)
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mov _AUTOPTRH2,#((_$1) >> 8)
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mov r2,#($2);
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lcall _MEM_COPY1_int
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_endasm;
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}]
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#endif // ZTEX_UTILS_H
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