/////////////////////////////////////////////////////////////////////////////
// Sends data byte to LCD
// IN: data byte in <data>
// OUT: returns < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_Data(u8 data)
{
// select LCD depending on current cursor position
// THIS PART COULD BE CHANGED TO ARRANGE THE 8 DISPLAYS ON ANOTHER WAY
u8 line = mios32_lcd_y / APP_LCD_HEIGHT;
u8 row = (mios32_lcd_x % (2*APP_LCD_WIDTH)) / APP_LCD_WIDTH;
u8 cs = 2*line + row;
if( cs >= 8 )
return -1; // invalid CS line
// chip select and DC
#if APP_LCD_USE_J10_FOR_CS
MIOS32_BOARD_J10_Set(~(1 << cs));
#else
MIOS32_BOARD_J15_DataSet(~(1 << cs));
#endif
MIOS32_BOARD_J15_RS_Set(1); // RS pin used to control DC
// send data
MIOS32_BOARD_J15_SerDataShift(data);
// increment graphical cursor
++mios32_lcd_x;
// if end of display segment reached: set X position of all segments to 0
if( (mios32_lcd_x % APP_LCD_WIDTH) == 0 ) {
APP_LCD_Cmd(0x00); // set X=0
APP_LCD_Cmd(0x10);
}
return 0; // no error
}
/////////////////////////////////////////////////////////////////////////////
// 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
}
/////////////////////////////////////////////////////////////////////////////
// Sets cursor to given position
// IN: <column> and <line>
// OUT: returns < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_CursorSet(u16 column, u16 line)
{
// exit with error if line is not in allowed range
if( line >= MIOS32_LCD_MAX_MAP_LINES )
return -1;
// -> set cursor address
return APP_LCD_Cmd(0x80 | (mios32_lcd_cursor_map[line] + column));
}
/////////////////////////////////////////////////////////////////////////////
// Hack: reinitializes the screens after some time, to clean up
// potentially garbled screens
//
/////////////////////////////////////////////////////////////////////////////
void reinit()
{
mios32_sys_time_t t = MIOS32_SYS_TimeGet();
charcount++;
if (t.seconds > last_reinit_seconds || charcount > 500)
{
charcount = 0;
last_reinit_seconds = t.seconds;
MIOS32_BOARD_J15_RS_Set(0);
MIOS32_BOARD_J15_RW_Set(0);
APP_LCD_Cmd(0b00110011);
APP_LCD_Cmd(0b00110010);
APP_LCD_Cmd(0b00101000); // 4bit, 2 lines
APP_LCD_Cmd(0b00001100); // display on, cursor off, char blinking off
APP_LCD_Cmd(0b00000110); // entry mode
}
}
/////////////////////////////////////////////////////////////////////////////
// Sends data byte to LCD
// IN: data byte in <data>
// OUT: returns < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_Data(u8 data)
{
// select LCD depending on current cursor position
// THIS PART COULD BE CHANGED TO ARRANGE THE 8 DISPLAYS ON ANOTHER WAY
u8 line = 0;
if( mios32_lcd_y >= 3*APP_LCD_HEIGHT )
line = 3;
else if( mios32_lcd_y >= 2*APP_LCD_HEIGHT )
line = 2;
else if( mios32_lcd_y >= 1*APP_LCD_HEIGHT )
line = 1;
u8 row = 0;
if( mios32_lcd_x >= 1*APP_LCD_WIDTH )
row = 1;
u8 cs = 2*line + row;
if( cs >= 8 )
return -1; // invalid CS line
// chip select and DC
MIOS32_BOARD_J15_DataSet(~(1 << cs));
MIOS32_BOARD_J15_RS_Set(1); // RS pin used to control DC
// send data
MIOS32_BOARD_J15_SerDataShift(data);
//MIOS32_DELAY_Wait_uS(40); // exact 10 uS delay
// increment graphical cursor
++mios32_lcd_x;
// if end of display segment reached: set X position of all segments to 0
if( (mios32_lcd_x % APP_LCD_WIDTH) == 0 ) {
APP_LCD_Cmd(0x00); // Set lower nibble to 0
return APP_LCD_Cmd(0x10); // Set upper nibble to 0
}
return 0; // no error
}
/////////////////////////////////////////////////////////////////////////////
// Sets graphical cursor to given position
// IN: <x> and <y>
// OUT: returns < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_GCursorSet(u16 x, u16 y)
{
s32 error = 0;
// set X position
error |= APP_LCD_Cmd(0x00 | ((x % APP_LCD_WIDTH) & 0x0f)); // send LSB nibble
error |= APP_LCD_Cmd(0x10 | (((x % APP_LCD_WIDTH) >> 4) & 0x0f)); // send MSB nibble
// set Y position
error |= APP_LCD_Cmd(0x60 | ((y>>2) % (2*APP_LCD_HEIGHT/8)));
return error;
}
/////////////////////////////////////////////////////////////////////////////
// Sets graphical cursor to given position
// IN: <x> and <y>
// OUT: returns < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_GCursorSet(u16 x, u16 y)
{
s32 error = 0;
// set X position
error |= APP_LCD_Cmd(0x00 | (x & 0xf));
error |= APP_LCD_Cmd(0x10 | ((x>>4) & 0xf));
// set Y position
error |= APP_LCD_Cmd(0xb0 | ((y>>3) & 7));
return 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 VFD driver
// IN: <mode>: optional configuration
// OUT: returns < 0 if initialisation failed
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_Init(u32 mode)
{
MIOS32_BOARD_J15_PortInit(APP_LCD_OUTPUT_MODE);
MIOS32_BOARD_J15_RS_Set(0);
MIOS32_BOARD_J15_RW_Set(0);
APP_LCD_Cmd(0b00110011);
APP_LCD_Cmd(0b00110010);
APP_LCD_Cmd(0b00101000); // 4bit, 2 lines
APP_LCD_Cmd(0b00001100); // display on, cursor off, char blinking off
APP_LCD_Cmd(0b00000110); // entry mode
APP_LCD_Cmd(0b00000001); // clear
return 0;
}
/////////////////////////////////////////////////////////////////////////////
// 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
}
/////////////////////////////////////////////////////////////////////////////
// Clear Screen
// IN: -
// OUT: returns < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_Clear(void)
{
// -> send clear command
return APP_LCD_Cmd(0x01);
}
/////////////////////////////////////////////////////////////////////////////
//! Sends command byte to LCD
//! \param[in] cmd command byte which should be sent to LCD
//! \return < 0 on errors
/////////////////////////////////////////////////////////////////////////////
s32 MIOS32_LCD_Cmd(u8 cmd)
{
// -> forward to app_lcd
return APP_LCD_Cmd(cmd);
}
/////////////////////////////////////////////////////////////////////////////
// Initializes application specific LCD driver
// IN: <mode>: optional configuration
// OUT: returns < 0 if initialisation failed
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_Init(u32 mode)
{
// currently only mode 0 supported
if( mode != 0 )
return -1; // unsupported mode
if( MIOS32_BOARD_J15_PortInit(APP_LCD_OUTPUT_MODE) < 0 )
return -2; // failed to initialize J15
// enable display by default
display_available |= (1 << mios32_lcd_device);
// set LCD type
mios32_lcd_parameters.lcd_type = MIOS32_LCD_TYPE_GLCD_CUSTOM;
mios32_lcd_parameters.num_x = APP_LCD_NUM_X;
mios32_lcd_parameters.width = APP_LCD_WIDTH;
mios32_lcd_parameters.num_x = APP_LCD_NUM_Y;
mios32_lcd_parameters.height = APP_LCD_HEIGHT;
mios32_lcd_parameters.colour_depth = APP_LCD_COLOUR_DEPTH;
// initialize LCD
#ifdef MIOS32_DONT_USE_DELAY
u32 delay;
for(delay=0; delay<50000; ++delay) MIOS32_BOARD_J15_RW_Set(0); // ca. 50 mS Delay
#else
MIOS32_DELAY_Wait_uS(50000); // exact 50 mS delay
#endif
APP_LCD_Cmd(0xf1);
APP_LCD_Cmd(0x67);
APP_LCD_Cmd(0xc0);
APP_LCD_Cmd(0x40);
APP_LCD_Cmd(0x50);
APP_LCD_Cmd(0x2b);
APP_LCD_Cmd(0xeb);
APP_LCD_Cmd(0x81);
APP_LCD_Cmd(0x58); // contrast(0x00-0xff Default 0x5f
APP_LCD_Cmd(0x89);
//APP_LCD_Cmd(0xd0); //Greyscale control
APP_LCD_Cmd(0xaf);
return (display_available & (1 << mios32_lcd_device)) ? 0 : -1; // return -1 if display not available
}
/////////////////////////////////////////////////////////////////////////////
// Initializes application specific LCD driver
// IN: <mode>: optional configuration
// OUT: returns < 0 if initialisation failed
/////////////////////////////////////////////////////////////////////////////
s32 APP_LCD_Init(u32 mode)
{
// currently only mode 0 supported
if( mode != 0 )
return -1; // unsupported mode
if( MIOS32_BOARD_J15_PortInit(APP_LCD_OUTPUT_MODE) < 0 )
return -2; // failed to initialize J15
#if APP_LCD_USE_J10_FOR_CS
int pin;
for(pin=0; pin<8; ++pin)
MIOS32_BOARD_J10_PinInit(pin, APP_LCD_OUTPUT_MODE ? MIOS32_BOARD_PIN_MODE_OUTPUT_OD : MIOS32_BOARD_PIN_MODE_OUTPUT_PP);
#endif
// set LCD type
mios32_lcd_type = MIOS32_LCD_TYPE_GLCD;
// initialize LCD
APP_LCD_Cmd(0xa8); // Set MUX Ratio
APP_LCD_Cmd(0x3f);
APP_LCD_Cmd(0xd3); // Set Display Offset
APP_LCD_Cmd(0x00);
APP_LCD_Cmd(0x40); // Set Display Start Line
APP_LCD_Cmd(0xa0); // Set Segment re-map
APP_LCD_Cmd(0xc0); // Set COM Output Scan Direction
APP_LCD_Cmd(0xda); // Set COM Pins hardware configuration
APP_LCD_Cmd(0x12);
APP_LCD_Cmd(0x81); // Set Contrast Control
APP_LCD_Cmd(0x7f); // middle
APP_LCD_Cmd(0xa4); // Disable Entiere Display On
APP_LCD_Cmd(0xa6); // Set Normal Display
APP_LCD_Cmd(0xd5); // Set OSC Frequency
APP_LCD_Cmd(0x80);
APP_LCD_Cmd(0x8d); // Enable charge pump regulator
APP_LCD_Cmd(0x14);
APP_LCD_Cmd(0xaf); // Display On
APP_LCD_Cmd(0x20); // Enable Page mode
APP_LCD_Cmd(0x02);
return (display_available & (1 << mios32_lcd_device)) ? 0 : -1; // return -1 if display not available
}
