diff options
| author | Jens Arnold <amiconn@rockbox.org> | 2005-06-27 19:28:55 +0000 |
|---|---|---|
| committer | Jens Arnold <amiconn@rockbox.org> | 2005-06-27 19:28:55 +0000 |
| commit | 492424bce0da0dede81531fb9d20a8455699e208 (patch) | |
| tree | 1aa6af6a5eb30c20ee148d2ac0648b9864b8d377 | |
| parent | c6bd12f831f2512e73e8ae5ab2ee7e10d1a6ea1e (diff) | |
H1x0: Reordered lcd init sequence to match the datasheet, including the recommended pause.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6897 a1c6a512-1295-4272-9138-f99709370657
| -rw-r--r-- | firmware/drivers/lcd-h100.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/firmware/drivers/lcd-h100.c b/firmware/drivers/lcd-h100.c index 23c88100b9..15cb351195 100644 --- a/firmware/drivers/lcd-h100.c +++ b/firmware/drivers/lcd-h100.c @@ -39,7 +39,7 @@ #define LCD_CNTL_TEMP_GRADIENT_SELECT 0x4e #define LCD_CNTL_OSC_FREQUENCY 0x5f #define LCD_CNTL_ON_OFF 0xae -#define LCD_CNTL_OSC_ON_OFF 0xab +#define LCD_CNTL_OSC_ON_OFF 0xaa #define LCD_CNTL_OFF_MODE 0xbe #define LCD_CNTL_REVERSE 0xa6 #define LCD_CNTL_ALL_LIGHTING 0xa4 @@ -171,25 +171,26 @@ void lcd_init(void) sleep(1); GPIO1_OUT |= 0x00004000; sleep(1); - - lcd_write_command(LCD_CNTL_ON_OFF | 1); /* LCD ON */ + lcd_write_command(LCD_CNTL_COLUMN_ADDRESS_DIR | 0); /* Normal */ lcd_write_command(LCD_CNTL_COMMON_OUTPUT_STATUS | 1); /* Reverse dir */ lcd_write_command(LCD_CNTL_REVERSE | 0); /* Reverse OFF */ lcd_write_command(LCD_CNTL_ALL_LIGHTING | 0); /* Normal */ - lcd_write_command(LCD_CNTL_OFF_MODE | 1); /* OFF -> VCC on drivers */ - lcd_write_command(LCD_CNTL_NLINE_ON_OFF | 1); /* N-line ON */ - lcd_write_command_ex(LCD_CNTL_DUTY_SET, 0x20, 1); + lcd_write_command(LCD_CNTL_OFF_MODE | 1); /* OFF -> VCC on drivers */ lcd_write_command_ex(LCD_CNTL_VOLTAGE_SELECT, 3, -1); lcd_write_command_ex(LCD_CNTL_ELECTRONIC_VOLUME, 0x1c, -1); lcd_write_command_ex(LCD_CNTL_TEMP_GRADIENT_SELECT, 0, -1); + lcd_write_command_ex(LCD_CNTL_LINE_INVERT_DRIVE, 0x10, -1); + lcd_write_command(LCD_CNTL_NLINE_ON_OFF | 1); /* N-line ON */ + lcd_write_command_ex(LCD_CNTL_OSC_FREQUENCY, 3, -1); lcd_write_command(LCD_CNTL_OSC_ON_OFF | 1); /* Oscillator ON */ - lcd_write_command_ex(LCD_CNTL_POWER_CONTROL, 0x17, -1); - sleep(1); + lcd_write_command_ex(LCD_CNTL_POWER_CONTROL, 0x16, -1); + sleep(HZ/10); /* 100 ms pause */ + lcd_write_command_ex(LCD_CNTL_POWER_CONTROL, 0x17, -1); lcd_write_command_ex(LCD_CNTL_DISPLAY_START_LINE, 0, -1); lcd_write_command_ex(LCD_CNTL_GRAY_SCALE_PATTERN, 0x42, -1); @@ -198,6 +199,7 @@ void lcd_init(void) lcd_clear_display(); lcd_update(); + lcd_write_command(LCD_CNTL_ON_OFF | 1); /* LCD ON */ create_thread(scroll_thread, scroll_stack, sizeof(scroll_stack), scroll_name); |