diff options
Diffstat (limited to '')
| -rw-r--r-- | M50530.c | 17 |
1 files changed, 11 insertions, 6 deletions
@@ -1,4 +1,4 @@ -/* $Id: M50530.c,v 1.8 2003/04/07 06:02:59 reinelt Exp $ +/* $Id: M50530.c,v 1.9 2003/07/24 04:48:09 reinelt Exp $ * * driver for display modules based on the M50530 chip * @@ -20,6 +20,9 @@ * * * $Log: M50530.c,v $ + * Revision 1.9 2003/07/24 04:48:09 reinelt + * 'soft clear' needed for virtual rows + * * Revision 1.8 2003/04/07 06:02:59 reinelt * further parallel port abstraction * @@ -145,7 +148,7 @@ static void M5_define_char (int ascii, char *buffer) } -int M5_clear (void) +int M5_clear (int full) { int row, col; @@ -158,9 +161,12 @@ int M5_clear (void) bar_clear(); GPO=0; - M5_setGPO (GPO); // All GPO's off - M5_command (0x0001, 1250); // clear display + if (full) { + M5_command (0x0001, 1250); // clear display + M5_setGPO (GPO); // All GPO's off + } + return 0; } @@ -214,12 +220,11 @@ int M5_init (LCD *Self) M5_command (0x0020, 20); // set display mode M5_command (0x0050, 20); // set entry mode M5_command (0x0030, 20); // set display mode - M5_command (0x0001, 1250); // clear display bar_init(rows, cols, XRES, YRES, CHARS); bar_add_segment(0,0,255,32); // ASCII 32 = blank - M5_clear(); + M5_clear(1); return 0; } |