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H1x0: Reordered lcd init sequence to match the datasheet, including the recommended pause.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6897 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2005-06-27 19:28:55 +00:00
parent c6bd12f831
commit 492424bce0
1 changed files with 10 additions and 8 deletions
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18
firmware/drivers/lcd-h100.c
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@ -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);