diff options
Diffstat (limited to 'drivers/gdisp/Nokia6610GE8/gdisp_lld.c')
| -rw-r--r-- | drivers/gdisp/Nokia6610GE8/gdisp_lld.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gdisp/Nokia6610GE8/gdisp_lld.c b/drivers/gdisp/Nokia6610GE8/gdisp_lld.c index 3f535369..d3e30d0e 100644 --- a/drivers/gdisp/Nokia6610GE8/gdisp_lld.c +++ b/drivers/gdisp/Nokia6610GE8/gdisp_lld.c @@ -93,7 +93,7 @@ #define GDISP_SLEEP_POS ((GDISP_SCAN_LINES-GDISP_SLEEP_SIZE)/2) #endif #ifndef GDISP_INITIAL_CONTRAST - #define GDISP_INITIAL_CONTRAST 38 + #define GDISP_INITIAL_CONTRAST 60 #endif #ifndef GDISP_INITIAL_BACKLIGHT #define GDISP_INITIAL_BACKLIGHT 100 @@ -162,8 +162,8 @@ LLDSPEC bool_t gdisp_lld_init(GDISPDriver *g) { // P1: 0x00 = page address normal, column address normal, address scan in column direction // P2: 0x00 = RGB sequence (default value) // P3: 0x02 = 4 bits per colour (Type A) - write_cmd2(VOLCTR, GDISP_INITIAL_CONTRAST, 0x03); // Voltage control (contrast setting) - // P1 = Contrast + write_cmd2(VOLCTR, 63*GDISP_INITIAL_CONTRAST/100, 0x03); // Voltage control (contrast setting) + // P1 = Contrast (0..63) // P2 = 3 resistance ratio (only value that works) delayms(100); // Allow power supply to stabilise write_cmd(DISON); // Turn on the display @@ -554,7 +554,7 @@ LLDSPEC bool_t gdisp_lld_init(GDISPDriver *g) { case GDISP_CONTROL_CONTRAST: if ((unsigned)g->p.ptr > 100) g->p.ptr = (void *)100; acquire_bus(); - write_cmd2(VOLCTR, (unsigned)g->p.ptr, 0x03); + write_cmd2(VOLCTR, 63*(unsigned)g->p.ptr/100, 0x03); release_bus(); g->g.Contrast = (unsigned)g->p.ptr; return; |