mirror of
git://projects.qi-hardware.com/nn-usb-fpga.git
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76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
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/* at91 XC Programer
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Copyright (C) 2006 Carlos Camargo, Andres Calderon
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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 as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU 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, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#ifndef SAKC_XCP_H
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#define SAKC_XCP_H
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#include "iobase.h"
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#include <unistd.h>
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extern "C"
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{
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#include "jz47xx_gpio.h"
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}
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class sakcXCProgrammer: public IOBase
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{
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public:
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sakcXCProgrammer();
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virtual ~sakcXCProgrammer();
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virtual bool txrx(bool tms, bool tdi);
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virtual void tx(bool tms, bool tdi);
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bool checkError(){return error;}
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bool done(){return true; /*!error && (cpld_base[0]&DONE==DONE);*/}
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protected:
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bool error;
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unsigned char data;
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};
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#define TDI 14 /*C*/
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#define TMS 23 /*D*/
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#define TDO 24 /*D*/
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#define TCK 28 /*D*/
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inline
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bool
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sakcXCProgrammer::txrx(bool tms, bool tdi)
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{
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tx(tms,tdi);
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return jz_gpio_get_pin (JZ_GPIO_PORT_D, TDO);
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}
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inline
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void
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sakcXCProgrammer::tx(bool tms, bool tdi)
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{
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jz_gpio_out (JZ_GPIO_PORT_D, TCK, 0);
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jz_gpio_out (JZ_GPIO_PORT_C, TDI, tdi);
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jz_gpio_out (JZ_GPIO_PORT_D, TMS, tms);
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jz_gpio_out (JZ_GPIO_PORT_D, TCK, 1);
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}
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#endif // JTAGBUS_H
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