/*
**
** Updates area of the display. Writes data from "framebuffer"
** RAM to the lcd display controller RAM.
**
** Arguments Used:
** top top line of area to update.
** bottom bottom line of area to update.
** from MJK-Code
**
*/
void lcd_update(const unsigned char top, const unsigned char bottom)
{ unsigned char x;
unsigned char y;
unsigned char yt;
unsigned char yb;
unsigned char *colptr;
/* setup bytes of range */
yb = bottom >> 3;
yt = top >> 3;
for(y = yt; y <= yb; y++)
{ lcd_out_ctl(LCD_SET_PAGE+y,3); /* set page */
// lcd_out_ctl(LCD_SET_COL+LCD_STARTCOL_REVERSE,3);
lcd_out_ctl(LCD_SET_COL+0,3);
colptr = &l_display_array[y][0];
for (x=0; x < LCD_X_BYTES; x++)
{ if ( x < LCD_X_BYTES/2 )
lcd_out_dat(*colptr++,1);
else
lcd_out_dat(*colptr++,2);
}
}
}
/* fills complete area with pattern - direct to LCD-RAM */
void lcd_test(const unsigned char pattern)
{ unsigned char page, col;
for (page=0; page<LCD_Y_BYTES; page++)
{ lcd_out_ctl(LCD_SET_PAGE+page,3);
lcd_out_ctl(LCD_SET_COL+LCD_STARTCOL_REVERSE,3); // !
for (col=0; col<LCD_X_BYTES/2; col++)
lcd_out_dat(pattern,3);
}
}
/* fill buffer and LCD with pattern */
void lcd_fill(const unsigned char pattern)
{ unsigned char page, col;
lcd_init();
lcd_out_ctl(LCD_DISP_OFF,3);
for (page=0; page<LCD_Y_BYTES; page++)
{ for (col=0; col<LCD_X_BYTES; col++)
l_display_array[page][col]=pattern;
}
lcd_update_all();
lcd_out_ctl(LCD_DISP_ON,3);
}
/*
**
** routine to initialize the operation of the LCD display subsystem
**
*/
void lcd_init(void)
{
//IODIR0 = MR|SHCP|DS|STCP1|STCP2;
//IOSET0 = MR;
//GPIO_SetBits(GPIOA,GPIO_Pin_15);
lcd_out_ctl(0,3);
lcd_out_ctl(LCD_RESET,3);
//delay_ms(1);//3
lcd_out_ctl(LCD_DISP_ON,3);
lcd_out_ctl(LCD_SET_ADC_NOR,3); // !
lcd_out_ctl(LCD_SET_LINE+16,3);
lcd_out_ctl(LCD_SET_PAGE+0,3);
lcd_out_ctl(LCD_SET_COL,3);
/*
lcd_out_ctl(0,3);
lcd_out_ctl(LCD_RESET,3);
lcd_out_ctl(LCD_DISP_ON,3);
lcd_out_ctl(LCD_SET_ADC_REV,3); // !
lcd_out_ctl(LCD_SET_LINE+0,3);
lcd_out_ctl(LCD_SET_PAGE+0,3);
lcd_out_ctl(LCD_SET_COL+LCD_STARTCOL_REVERSE,3);
*/
}
/*
**
** routine to initialize the operation of the LCD display subsystem
**
*/
void lcd_init(void)
{ LCDDATADDR = 0xff; /* all output */
LCDCTRLDDR |= ( (1<<LCDCMDPIN) | (1<<LCDE1PIN) | (1<<LCDE2PIN) );
lcd_out_ctl(0,3);
lcd_out_ctl(LCD_RESET,3);
lcd_long_delay();
lcd_out_ctl(LCD_DISP_ON,3);
lcd_out_ctl(LCD_SET_ADC_REV,3); // !
lcd_out_ctl(LCD_SET_LINE+0,3);
lcd_out_ctl(LCD_SET_PAGE+0,3);
lcd_out_ctl(LCD_SET_COL+LCD_STARTCOL_REVERSE,3);
}
/* Close Disp -- add by nathan */
void lcd_mute(void)
{
lcd_out_ctl(0,3);
lcd_out_ctl(LCD_RESET,3);
//delay_ms(1);//3
lcd_out_ctl(LCD_SET_ADC_NOR,3); // !
lcd_out_ctl(LCD_SET_LINE+16,3);
lcd_out_ctl(LCD_SET_PAGE+0,3);
lcd_out_ctl(LCD_SET_COL,3);
lcd_out_ctl(LCD_DISP_OFF,3);
ControlBitShift(RST0|0x0|0x20); // Q6 背光 Q5 灯
}
/* raw write to LCD-RAM - used for debugging */
void lcd_raw(const unsigned char page, const unsigned char col, const unsigned char nctrl, const unsigned char pattern)
{ lcd_out_ctl(LCD_SET_PAGE+page,nctrl);
lcd_out_ctl(LCD_SET_COL+col,nctrl);
lcd_out_dat(pattern,nctrl);
}