void RAIO_screen_off( void ) {
RAIO_SetRegister( PWRR , 0x40 );
TFT_wait_for_raio();
}
// set mode for BET (Block Transfer Engine)
// ----------------------------------------------------------
void BTE_mode( uint8_t bte_operation, uint8_t rop_function )
{
RAIO_SetRegister( BECR1, bte_operation | (rop_function<<4) );
}
// initialization of RAIO8870
// ----------------------------------------------------------
void RAIO_init( void )
{
static uint8_t PLL_Initial_Flag = 0;
// *************** PLL settings (System Clock)
if ( !PLL_Initial_Flag ) // wait until PLL is ready
{
PLL_Initial_Flag = 1; // set Flag to avoid repeated PLL init
RAIO_SetRegister( PLLC1, 0x07 ); // set sys_clk
bcm2835_delayMicroseconds( 200 );
RAIO_SetRegister( PLLC2, 0x03 ); // set sys_clk
bcm2835_delayMicroseconds( 200 );
RAIO_SetRegister( PWRR, 0x01 ); // Raio software reset ( bit 0 ) set
RAIO_SetRegister( PWRR, 0x00 ); // Raio software reset ( bit 0 ) set to 0
delay( 100 );
// *************** color modes (color depths)
#ifdef CM_65K
// System Configuration Register
RAIO_SetRegister( SYSR, 0x0A ); // digital TFT
// parallel data out
// no external memory
// 8bit memory data bus
// 16bpp 65K color
// 16bit MCU-interface (data)
RAIO_SetRegister( DPCR, 0x00 ); // one layer
#elif defined(CM_4K)
// System Configuration Register
RAIO_SetRegister( SYSR, 0x06 ); // digital TFT
// parallel data out
// no external memory
// 8bit memory data bus
// 12bpp 4K color
// 16bit MCU-interface (data)
RAIO_SetRegister( DPCR, 0x80 ); // two layers
RAIO_SetRegister( MWCR1, BankNo_WR );
RAIO_SetRegister( LTPR0, BankNo_RD );
#else
#error "color_mode not defined"
#endif
}
// *************** horizontal settings
// 0x27+1 * 8 = 320 pixel
RAIO_SetRegister( HDWR , (DISPLAY_WIDTH / 8) - 1 );
RAIO_SetRegister( HNDFTR, 0x02 ); // Horizontal Non-Display Period Fine Tuning
// HNDR , Horizontal Non-Display Period Bit[4:0]
// Horizontal Non-Display Period (pixels) = (HNDR + 1)*8
RAIO_SetRegister( HNDR, 0x03 ); // 0x06
RAIO_SetRegister( HSTR, 0x04 ); //HSTR , HSYNC Start Position[4:0], HSYNC Start Position(PCLK) = (HSTR + 1)*8 0x02
// HPWR , HSYNC Polarity ,The period width of HSYNC.
// 1xxxxxxx activ high 0xxxxxxx activ low
// HSYNC Width [4:0] HSYNC Pulse width
// (PCLK) = (HPWR + 1)*8
RAIO_SetRegister( HPWR, 0x03 ); // 0x00
// ********************* vertical settings
// 0x0EF +1 = 240 pixel
RAIO_SetRegister( VDHR0 , ( (DISPLAY_HEIGHT-1) & 0xFF ) );
RAIO_SetRegister( VDHR1 , ( (DISPLAY_HEIGHT-1) >> 8) );
// VNDR0 , Vertical Non-Display Period Bit [7:0]
// Vertical Non-Display area = (VNDR + 1)
// VNDR1 , Vertical Non-Display Period Bit [8]
// Vertical Non-Display area = (VNDR + 1)
RAIO_SetRegister( VNDR0, 0x10 );
RAIO_SetRegister( VNDR1, 0x00 );
// VPWR , VSYNC Polarity ,VSYNC Pulse Width[6:0]
// VSYNC , Pulse Width(PCLK) = (VPWR + 1)
RAIO_SetRegister( VPWR, 0x00 );
// *************** miscellaneous settings
// active Window
Active_Window( 0, DISPLAY_WIDTH-1, 0, DISPLAY_HEIGHT-1 );
// PCLK fetch data on rising edge
RAIO_SetRegister( PCLK, 0x00 );
// Backlight dimming
RAIO_SetBacklightPWMValue(50);
Text_Background_Color( COLOR_BLACK );
// memory clear with background color
RAIO_SetRegister( MCLR, 0x81 );
TFT_wait_for_raio();
RAIO_SetRegister( IODR, 0x07 );
RAIO_SetRegister( PWRR, 0x80 );
}
// set PWM value for backlight
// ----------------------------------------------------------
void RAIO_SetBacklightPWMValue( uint8_t BL_value )
{
RAIO_SetRegister( P1CR, 0x88 ); // Enable PWM1 output devider 256
RAIO_SetRegister( P1DCR, BL_value ); // -> BL_vaue = 0 (0% PWM) - 255 (100% PWM)
}
// set font size
// ----------------------------------------------------------
void RAIO_SetFontSizeFactor( uint8_t size )
{
size = (size & 0x0f);
RAIO_SetRegister ( FNCR1, size );
}
void Text_Foreground_Color( uint8_t color)
{
RAIO_SetRegister( TFCR, color);
}
// set color
// ----------------------------------------------------------
void Text_Background_Color( uint8_t color )
{
RAIO_SetRegister( TBCR, color );
}
