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https://opencores.org/ocsvn/usb_fpga_1_2/usb_fpga_1_2/trunk
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Rev 8 |
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/*!
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/*!
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ucecho -- uppercase conversion example for all EZ-USB devices
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ucecho -- uppercase conversion example for all EZ-USB devices
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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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if ( !(EP4CS & bmBIT2) ) { // EP4 is not empty
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if ( !(EP4CS & bmBIT2) ) { // EP4 is not empty
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size = (EP4BCH << 8) | EP4BCL;
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size = (EP4BCH << 8) | EP4BCL;
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if ( size>0 && size<=512 && !(EP2CS & bmBIT3)) { // EP2 is not full
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if ( size>0 && size<=512 && !(EP2CS & bmBIT3)) { // EP2 is not full
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for ( i=0; i<size; i++ ) {
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for ( i=0; i<size; i++ ) {
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b = EP4FIFOBUF[i]; // data from EP4 ...
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b = EP4FIFOBUF[i]; // data from EP4 ...
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if ( b>='a' && b<='z' ) // ... is converted to uppercase ...
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if ( b>=(BYTE)'a' && b<=(BYTE)'z' ) // ... is converted to uppercase ...
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b-=32;
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b-=32;
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EP2FIFOBUF[i] = b; // ... and written back to EP2 buffer
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EP2FIFOBUF[i] = b; // ... and written back to EP2 buffer
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}
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}
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EP2BCH = size >> 8;
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EP2BCH = size >> 8;
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SYNCDELAY;
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SYNCDELAY;
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