/////////////////////////////////////////////////////////////////////////////
// Clear Screen
// IN: -
// OUT: returns < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_Clear(void)
{
int x, y;
// use default font
MIOS32_LCD_FontInit((u8 *)GLCD_FONT_NORMAL);
// clear whole 128x128 screen with background colour
// ST7637 specific function to set view
APP_LCD_SetRect_For_Cmd(0, 0, APP_LCD_WIDTH, APP_LCD_HEIGHT);
// Send command to write data on the LCD screen.
APP_LCD_Cmd(ST7637_RAMWR);
for(x=0; x<APP_LCD_WIDTH; ++x) {
for(y=0; y<APP_LCD_HEIGHT; ++y) {
APP_LCD_Data(lcd_bcolour & 0xff);
APP_LCD_Data(lcd_bcolour >> 8);
}
}
// set cursor to initial position
APP_LCD_CursorSet(0, 0);
return 0; // no error
}
/////////////////////////////////////////////////////////////////////////////
// Transfers a Bitmap within given boundaries to the LCD
// IN: bitmap
// OUT: returns < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_BitmapPrint(mios32_lcd_bitmap_t bitmap)
{
int line;
int y_lines = (bitmap.height >> 3);
for(line=0; line<y_lines; ++line) {
// calculate pointer to bitmap line
u8 *memory_ptr = bitmap.memory + line * bitmap.line_offset;
// set graphical cursor after second line has reached
if( line > 0 ) {
mios32_lcd_x -= bitmap.width;
mios32_lcd_y += 8;
APP_LCD_GCursorSet(mios32_lcd_x, mios32_lcd_y);
}
// transfer bitmap
int x;
for(x=0; x<bitmap.width; ++x)
APP_LCD_Data(*memory_ptr++);
}
// fix graphical cursor if more than one line has been print
if( y_lines >= 1 ) {
mios32_lcd_y = mios32_lcd_y - (bitmap.height-8);
APP_LCD_GCursorSet(mios32_lcd_x, mios32_lcd_y);
}
return 0; // no error
}
/////////////////////////////////////////////////////////////////////////////
// Initializes a single special character
// IN: character number (0-7) in <num>, pattern in <table[8]>
// OUT: returns < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_SpecialCharInit(u8 num, u8 table[8])
{
s32 i;
// send character number
APP_LCD_Cmd(((num&7)<<3) | 0x40);
// send 8 data bytes
for(i=0; i<8; ++i)
if( APP_LCD_Data(table[i]) < 0 )
return -1; // error during sending character
// set cursor to original position
return APP_LCD_CursorSet(mios32_lcd_column, mios32_lcd_line);
}
/////////////////////////////////////////////////////////////////////////////
// Initializes application specific LCD driver
// IN: <mode>: optional configuration
// OUT: returns < 0 if initialisation failed
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_Init(u32 mode)
{
GPIO_InitTypeDef GPIO_InitStructure;
s32 delay;
// set LCD type
mios32_lcd_parameters.lcd_type = MIOS32_LCD_TYPE_GLCD_CUSTOM;
// set initial font and colours
MIOS32_LCD_FontInit((u8 *)GLCD_FONT_NORMAL);
MIOS32_LCD_BColourSet(0xffffff);
MIOS32_LCD_FColourSet(0x000000);
// control lines
PIN_BL(1);
PIN_RS(1);
PIN_RD(1);
PIN_CS(1);
PIN_WR(1);
PIN_RST(1);
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Pin = APP_LCD_BL_PIN;
GPIO_Init(APP_LCD_BL_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = APP_LCD_RS_PIN;
GPIO_Init(APP_LCD_RS_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = APP_LCD_RD_PIN;
GPIO_Init(APP_LCD_RD_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = APP_LCD_WR_PIN;
GPIO_Init(APP_LCD_WR_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = APP_LCD_CS_PIN;
GPIO_Init(APP_LCD_CS_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = APP_LCD_RST_PIN;
GPIO_Init(APP_LCD_RST_PORT, &GPIO_InitStructure);
// Apply hardware reset
PIN_RST(0);
for(delay=0; delay<0x500; ++delay);
PIN_RST(1);
for(delay=0; delay<0x500; ++delay);
// configure data pins as outputs
GPIO_InitStructure.GPIO_Pin = APP_LCD_D_PINS;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(APP_LCD_D_PORT, &GPIO_InitStructure);
//----------- software reset ------------------------------------------------
APP_LCD_Cmd(ST7637_SWRESET);
//----------- disable autoread + Manual read once ---------------------------
APP_LCD_Cmd( ST7637_AUTOLOADSET ); // Auto Load Set 0xD7
APP_LCD_Data( 0xBF ); // Auto Load Disable
APP_LCD_Cmd( ST7637_EPCTIN ); // EE Read/write mode 0xE0
APP_LCD_Data( 0x00 ); // Set read mode
APP_LCD_Cmd( ST7637_EPMRD ); // Read active 0xE3
APP_LCD_Cmd( ST7637_EPCTOUT ); // Cancel control 0xE1
//---------------------------------- Sleep OUT ------------------------------
APP_LCD_Cmd( ST7637_DISPOFF ); // display off 0x28
APP_LCD_Cmd( ST7637_SLPOUT ); // Sleep Out 0x11
//--------------------------------Vop setting--------------------------------
APP_LCD_Cmd( ST7637_VOPSET ); // Set Vop by initial Module 0xC0
APP_LCD_Data( 0xFB ); // Vop = 13.64
APP_LCD_Data( 0x00 ); // base on Module
//----------------------------Set Register-----------------------------------
APP_LCD_Cmd( ST7637_BIASSEL ); // Bias select 0xC3
APP_LCD_Data( 0x00 ); // 1/12 Bias, base on Module
APP_LCD_Cmd( ST7637_BSTBMPXSEL ); // Setting Booster times 0xC4
APP_LCD_Data( 0x05 ); // Booster X 8
APP_LCD_Cmd( ST7637_BSTEFFSEL ); // Booster eff 0xC5
APP_LCD_Data( 0x11 ); // BE = 0x01 (Level 2)
APP_LCD_Cmd( ST7637_VGSORCSEL ); // Vg with booster x2 control 0xcb
APP_LCD_Data( 0x01 ); // Vg from Vdd2
APP_LCD_Cmd( ST7637_ID1SET ); // ID1 = 00 0xcc
APP_LCD_Data( 0x00 ); //
APP_LCD_Cmd( ST7637_ID3SET ); // ID3 = 00 0xce
APP_LCD_Data( 0x00 ); //
APP_LCD_Cmd( ST7637_COMSCANDIR ); // Glass direction
APP_LCD_Data( 0xC0 ); //
APP_LCD_Cmd( ST7637_ANASET ); // Analog circuit setting 0xd0
APP_LCD_Data( 0x1D ); //
APP_LCD_Cmd( ST7637_PTLMOD ); // PTL mode set
APP_LCD_Data( 0x18 ); // power normal mode
APP_LCD_Cmd( ST7637_INVOFF ); // Display Inversion OFF 0x20
APP_LCD_Cmd( ST7637_CASET ); // column range
APP_LCD_Data( 0x04 ); //
APP_LCD_Data( 0x83 ); //
APP_LCD_Cmd( ST7637_RASET ); // raw range
APP_LCD_Data( 0x04 ); //
APP_LCD_Data( 0x83 ); //
APP_LCD_Cmd( ST7637_COLMOD ); // Color mode = 65k 0x3A
APP_LCD_Data( 0x05 ); //
APP_LCD_Cmd( ST7637_MADCTR ); // Memory Access Control 0x36
APP_LCD_Data( V12_MADCTRVAL );
APP_LCD_Cmd( ST7637_DUTYSET ); // Duty = 132 duty 0xb0
APP_LCD_Data( 0x7F );
APP_LCD_Cmd( ST7637_DISPON ); // Display ON
APP_LCD_Cmd( ST7637_FRAMESET ); // Gamma
APP_LCD_Data( 0x00 ); //
APP_LCD_Data( 0x03 ); //
APP_LCD_Data( 0x05 ); //
APP_LCD_Data( 0x07 ); //
APP_LCD_Data( 0x09 ); //
APP_LCD_Data( 0x0B ); //
APP_LCD_Data( 0x0D ); //
APP_LCD_Data( 0x0F ); //
APP_LCD_Data( 0x11 ); //
APP_LCD_Data( 0x13 ); //
APP_LCD_Data( 0x15 ); //
APP_LCD_Data( 0x17 ); //
APP_LCD_Data( 0x19 ); //
APP_LCD_Data( 0x1B ); //
APP_LCD_Data( 0x1D ); //
APP_LCD_Data( 0x1F ); //
return 0; // no error
}
/////////////////////////////////////////////////////////////////////////////
//! Sends data byte to LCD
//! \param[in] data byte which should be sent to LCD
//! \return < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 MIOS32_LCD_Data(u8 data)
{
// -> forward to app_lcd
return APP_LCD_Data(data);
}
//! \param[in] c character to be print
//! \return < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 MIOS32_LCD_PrintChar(char c)
{
s32 status;
if( MIOS32_LCD_TypeIsGLCD() ) { // GLCD
if( !font_bitmap.width )
return -1; // font not initialized yet!
mios32_lcd_bitmap_t bitmap = font_bitmap;
bitmap.memory += (bitmap.height>>3) * bitmap.line_offset * (size_t)c;
status = APP_LCD_BitmapPrint(bitmap);
} else {
status = APP_LCD_Data(c);
}
if( status >= 0 ) {
// increment cursor
++mios32_lcd_column;
}
return status;
}
/////////////////////////////////////////////////////////////////////////////
//! Initializes a single special character
//! \param[in] num character number (0-7)
//! \param[in] table 8 byte pattern
/////////////////////////////////////////////////////////////////////////////
// Transfers a Bitmap within given boundaries to the LCD
// IN: bitmap
// OUT: returns < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_BitmapPrint(mios32_lcd_bitmap_t bitmap)
{
int stored_mios32_lcd_y = mios32_lcd_y;
int line;
int y_lines = (bitmap.height >> 2); // we need two write accesses per 8bit line
for(line=0; line<y_lines; ++line) {
// set graphical cursor after second line has reached
if( line > 0 ) {
mios32_lcd_x -= bitmap.width;
mios32_lcd_y += 4;
APP_LCD_GCursorSet(mios32_lcd_x, mios32_lcd_y);
}
// transfer bitmap
switch( bitmap.colour_depth ) {
case 2: { // depth 2
// calculate pointer to bitmap line
u8 *memory_ptr = bitmap.memory + line * bitmap.line_offset;
int x;
for(x=0; x<bitmap.width; ++x)
APP_LCD_Data(*memory_ptr++);
} break;
default: { // depth 1 or others
// calculate pointer to bitmap line
u8 *memory_ptr = bitmap.memory + (line / 2) * bitmap.line_offset;
if( line & 1 ) {
int x;
for(x=0; x<bitmap.width; ++x) {
u8 b = 0;
if( *memory_ptr & (1 << 4) ) b |= (3 << 0);
if( *memory_ptr & (1 << 5) ) b |= (3 << 2);
if( *memory_ptr & (1 << 6) ) b |= (3 << 4);
if( *memory_ptr & (1 << 7) ) b |= (3 << 6);
APP_LCD_Data(b);
++memory_ptr;
}
} else {
int x;
for(x=0; x<bitmap.width; ++x) {
u8 b = 0;
if( *memory_ptr & (1 << 0) ) b |= (3 << 0);
if( *memory_ptr & (1 << 1) ) b |= (3 << 2);
if( *memory_ptr & (1 << 2) ) b |= (3 << 4);
if( *memory_ptr & (1 << 3) ) b |= (3 << 6);
APP_LCD_Data(b);
++memory_ptr;
}
}
}
}
}
// fix graphical cursor if Y position has changed
if( y_lines > 1 ) {
mios32_lcd_y = stored_mios32_lcd_y;
APP_LCD_GCursorSet(mios32_lcd_x, mios32_lcd_y);
}
return 0; // no error
}
