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[lcd4linux @ 2003-09-29 06:12:56 by reinelt]

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changed default HD44780 wiring: unused signals are GND

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@248 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
This commit is contained in:
reinelt
2003-09-29 06:12:56 +00:00
parent 6ad29537e9
commit 0280c32d66
3 changed files with 22 additions and 15 deletions
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HD44780.c
+9 -6
View File
@@ -1,4 +1,4 @@
/* $Id: HD44780.c,v 1.42 2003/09/21 06:43:02 reinelt Exp $
/* $Id: HD44780.c,v 1.43 2003/09/29 06:12:56 reinelt Exp $
*
* driver for display modules based on the HD44780 chip
*
@@ -27,11 +27,14 @@
*
*
* $Log: HD44780.c,v $
* Revision 1.43 2003/09/29 06:12:56 reinelt
* changed default HD44780 wiring: unused signals are GND
*
* Revision 1.42 2003/09/21 06:43:02 reinelt
*
*
* MatrixOrbital: bidirectional communication
* HD44780: special handling for 16x1 displays (thanks to anonymous bug report on sf.net)
* HD44780: special handling for 16x1 displays (thanks to Maciej Witkowiak)
*
* Revision 1.41 2003/09/13 06:20:39 reinelt
* HD44780 timings changed; deactivated libtool
@@ -485,15 +488,15 @@ int HD_init (LCD *Self)
if (Bits==8) {
if ((SIGNAL_RS = parport_wire_ctrl ("RS", "AUTOFD"))==0xff) return -1;
if ((SIGNAL_RW = parport_wire_ctrl ("RW", "GND") )==0xff) return -1;
if ((SIGNAL_RW = parport_wire_ctrl ("RW", "GND" ))==0xff) return -1;
if ((SIGNAL_ENABLE = parport_wire_ctrl ("ENABLE", "STROBE"))==0xff) return -1;
if ((SIGNAL_ENABLE2 = parport_wire_ctrl ("ENABLE2", "SELECT"))==0xff) return -1;
if ((SIGNAL_GPO = parport_wire_ctrl ("GPO", "INIT") )==0xff) return -1;
if ((SIGNAL_ENABLE2 = parport_wire_ctrl ("ENABLE2", "GND" ))==0xff) return -1;
if ((SIGNAL_GPO = parport_wire_ctrl ("GPO", "GND" ))==0xff) return -1;
} else {
if ((SIGNAL_RS = parport_wire_data ("RS", "DB4"))==0xff) return -1;
if ((SIGNAL_RW = parport_wire_data ("RW", "DB5"))==0xff) return -1;
if ((SIGNAL_ENABLE = parport_wire_data ("ENABLE", "DB6"))==0xff) return -1;
if ((SIGNAL_ENABLE2 = parport_wire_data ("ENABLE2", "DB7"))==0xff) return -1;
if ((SIGNAL_ENABLE2 = parport_wire_data ("ENABLE2", "GND"))==0xff) return -1;
if ((SIGNAL_GPO = parport_wire_data ("GPO", "GND"))==0xff) return -1;
}
MatrixOrbital.c
+6 -5
View File
@@ -1,4 +1,4 @@
/* $Id: MatrixOrbital.c,v 1.42 2003/09/21 06:43:02 reinelt Exp $
/* $Id: MatrixOrbital.c,v 1.43 2003/09/29 06:12:56 reinelt Exp $
*
* driver for Matrix Orbital serial display modules
*
@@ -20,11 +20,14 @@
*
*
* $Log: MatrixOrbital.c,v $
* Revision 1.43 2003/09/29 06:12:56 reinelt
* changed default HD44780 wiring: unused signals are GND
*
* Revision 1.42 2003/09/21 06:43:02 reinelt
*
*
* MatrixOrbital: bidirectional communication
* HD44780: special handling for 16x1 displays (thanks to anonymous bug report on sf.net)
* HD44780: special handling for 16x1 displays (thanks to Maciej Witkowiak)
*
* Revision 1.41 2003/09/13 06:45:43 reinelt
* icons for all remaining drivers
@@ -272,7 +275,7 @@ static int MO_read (char *string, int len)
}
if (ret<0) {
error("Cwlinux: read() failed: %s", strerror(errno));
error("MatrixOrbital: read() failed: %s", strerror(errno));
}
return ret;
@@ -447,8 +450,6 @@ static int MO_init (LCD *Self, int protocol)
usleep(100000);
MO_read (buffer, 1);
debug ("Version number=<0x%x>", *buffer);
#endif
return 0;
T6963.c
+7 -4
View File
@@ -1,4 +1,4 @@
/* $Id: T6963.c,v 1.11 2003/09/13 06:45:43 reinelt Exp $
/* $Id: T6963.c,v 1.12 2003/09/29 06:12:56 reinelt Exp $
*
* driver for display modules based on the Toshiba T6963 chip
*
@@ -20,6 +20,9 @@
*
*
* $Log: T6963.c,v $
* Revision 1.12 2003/09/29 06:12:56 reinelt
* changed default HD44780 wiring: unused signals are GND
*
* Revision 1.11 2003/09/13 06:45:43 reinelt
* icons for all remaining drivers
*
@@ -110,7 +113,7 @@ void T6_status1 (void)
// lower CE and RD
parport_control (SIGNAL_CE | SIGNAL_RD, 0);
// Access Time: 150 ns
ndelay(150);
@@ -130,7 +133,7 @@ void T6_status1 (void)
// Output Hold Time: 50 ns
ndelay(50);
// turn on data line drivers
parport_direction (0);
}
@@ -367,7 +370,7 @@ int T6_init (LCD *Self)
if ((SIGNAL_WR=parport_wire_ctrl ("WR", "INIT") )==0xff) return -1;
if (parport_open() != 0) {
error ("HD44780: could not initialize parallel port!");
error ("T6963: could not initialize parallel port!");
return -1;
}