void
LCDI2C4Bit::init( void )
{
lcd_mcp.init();
lcd_in_use_flag = 1; // set a mutex so that the IR isr won't do anything while we are doing lcd i/o
dataPlusMask = 0;
lcd_mcp.set(MCP_REG_IOCON, 0x0C);
delay(50);
lcd_mcp.set(MCP_REG_IODIR, myInputKeysMask);
delay(50);
lcd_mcp.set(MCP_REG_GPPU, myInputKeysMask);
delay(50);
SendToLCD(0x03);
delay(5);
SendToLCD(0x03);
delayMicroseconds(100);
SendToLCD(0x03);
delay(5);
SendToLCD(0x02);
WriteLCDByte(0x28);
WriteLCDByte(0x08);
WriteLCDByte(0x0C); // turn on, cursor off, no blinking
delayMicroseconds(60);
WriteLCDByte(0x01); // clear display
delay(5);
lcd_in_use_flag = 0; // clear that mutex (so that the IR isr CAN now do things)
}
void InitLCD()
{
// Software reset
SendToLCD(0x0001);
// Sleep out
SendToLCD(0x0011);
// Partial off
SendToLCD(0x0013);
// Display inversion off
// Memory data access control
SendToLCD(0x0036);
SendToLCD(0x01C0);
// Scroll start address of RAM
//SendToLCD(0x0037);
// SendToLCD(0x0100);
// SendToLCD(0x0100);
// Idle mode off
SendToLCD(0x0038);
// Interface pixel format
SendToLCD(0x003A);
SendToLCD(0x0105);
// Display on
SendToLCD(0x0029);
}
void
LCDI2C4Bit::WriteLCDByte( uint8_t bdata )
{
lcd_in_use_flag = 1; // set a mutex so that the IR isr won't do anything while we are doing lcd i/o
SendToLCD( bdata >> 4 );
SendToLCD( bdata & 0x0F );
lcd_in_use_flag = 0; // clear that mutex (so that the IR isr CAN now do things)
}
void DrawFillRectangle(char XRect,char YRect,char WidthRect,char HeightRect,unsigned long ColorRect)
{
// Column address set
SendToLCD(0x2A);
SendToLCD(0x100+XRect);
SendToLCD(0x100+XRect+WidthRect-1);
// Row address set
SendToLCD(0x2B);
SendToLCD(0x100+YRect);
SendToLCD(0x100+YRect+HeightRect-1);
// Memory write
//Convert 24-bit color to 16-bit color
char b = ColorRect;
char g = ColorRect>>8;
char r = ColorRect>>16;
unsigned int i,CountPixels;
SendToLCD(0x2C);
CountPixels=(HeightRect)*(WidthRect);
for (i=1;i<=CountPixels;i++){
SendToLCD(0x0100+((r&0xF8)|(g>>5)));
SendToLCD(0x0100+(((g<<3)&0xE0)|(b>>3)));
}
}