static void ST7735_writeCmd( uint8_t c ) {
LcdWrite(LCD_C, &c, 1);
}
// Set contrast can set the LCD Vop to a value between 0 and 127.
// 40-60 is usually a pretty good range.
void PCD8544::setContrast(byte contrast)
{
LcdWrite(LCD_CMD, 0x21); //Tell LCD that extended commands follow
LcdWrite(LCD_CMD, 0x80 | contrast); //Set LCD Vop (Contrast): Try 0xB1(good @ 3.3V) or 0xBF if your display is too dark
LcdWrite(LCD_CMD, 0x20); //Set display mode
}
void gotoXY(int x, int y) {
LcdWrite( 0, 0x80 | x); // Column.
LcdWrite( 0, 0x40 | y); // Row.
}
void LcdClear(void)
{
LcdWrite(LCD_RS_CNTL, 0x01);
}
///----------------------------------------------------------------------------
/// Function Break
///----------------------------------------------------------------------------
void WriteMapToLcd(uint8 (*g_mmap_ptr)[128])
{
uint8 segment;
uint8* pixel_byte_ptr;
uint8 col_index;
uint8 row_index;
// Check if the LCD has power. If not, can't get status, so return
if (GetPowerControlState(LCD_POWER_ENABLE) == OFF)
{
return;
}
row_index = 0;
while (row_index < 8)
{
col_index = 0;
pixel_byte_ptr = (uint8*)g_mmap_ptr[row_index];
segment = LCD_SEGMENT1;
SetLcdOrigin(row_index, DEFAULT_Y_LOC, segment);
while (col_index <= SEGMENT_ONE_BLOCK_BORDER)
{
// Normal command replaced by code below
//WriteLcdData(*(pixel_byte_ptr + col_index),segment);
// Optimized WriteLcdData operation for speed
//ClockDataToLcd(lcdCmdSeg1, *(pixel_byte_ptr + col_index));
//while (ClockDataFromLcd(lcdStatusSeg1) & LCD_BUSY_FLAG) {};
// End of optimized WriteLcdData operation
LcdWrite(LCD_DATA, *(pixel_byte_ptr + col_index), segment);
WaitForLcdReady(segment);
col_index++;
}
segment = LCD_SEGMENT2;
SetLcdOrigin(row_index, DEFAULT_Y_LOC, segment);
while (col_index <= SEGMENT_TWO_BLOCK_BORDER)
{
// Normal command replaced by code below
//WriteLcdData(*(pixel_byte_ptr + col_index),segment);
// Optimized WriteLcdData operation for speed
//ClockDataToLcd(lcdCmdSeg2, *(pixel_byte_ptr + col_index));
//while (ClockDataFromLcd(lcdStatusSeg2) & LCD_BUSY_FLAG) {};
// End of optimized WriteLcdData operation
LcdWrite(LCD_DATA, *(pixel_byte_ptr + col_index), segment);
WaitForLcdReady(segment);
col_index++;
}
row_index++;
}
}
///----------------------------------------------------------------------------
/// Function Break
///----------------------------------------------------------------------------
void ClearControlLinesLcdDisplay(void)
{
LcdWrite(LCD_INSTRUCTION, 0x00, LCD_SEGMENT1);
LcdWrite(LCD_DATA, 0x00, LCD_SEGMENT1);
}
static void f3d_lcd_writeCmd(uint8_t c) {
LcdWrite(LCD_C,&c,1);
}
///----------------------------------------------------------------------------
/// Function Break
///----------------------------------------------------------------------------
inline void WriteLcdData(uint8 lcdData, uint8 segment)
{
LcdWrite(LCD_DATA, lcdData, segment);
WaitForLcdReady(segment);
}
// clear the entire LCD
void LcdClear(void) {
int index;
for (index = 0; index < LCD_X * LCD_Y / 8; index++) {
LcdWrite(LCD_D, 0x00);
}
}
//==============================================================//
// Initialize single LCD and flush memory
//==============================================================//
void LcdSingleInit(void)
{
uint16_t i;
// Software reset
LcdWrite(CMD_RESET,CMD);
//---- Ignored by china LCDs ----//
// Charge pump
LcdWrite(CMD_CHARGE_PUMP_MUL,CMD);
LcdWrite(0x01,CMD); // A bit lower VLCD for 3.3V
// Set VOP (contrast)
LcdWrite(CMD_SET_VOP,CMD);
LcdWrite(0x00,CMD); // default
// V0 - voltage range
LcdWrite(CMD_SET_VO_RANGE | V0R_8V12,CMD); // default
// Electronic volume
LcdWrite(CMD_SET_EV | 0x10,CMD); // default
// X-axis reverse
#ifdef HORIZONTAL_REVERSE
LcdWrite(CMD_SELECT_SEGMENT_DIR | SEGMENT_REVERSE, CMD);
#else
LcdWrite(CMD_SELECT_SEGMENT_DIR | SEGMENT_NORMAL, CMD);
#endif
//------------------------------//
// Y-axis reverse
#ifdef VERTICAL_REVERSE
LcdWrite(CMD_SELECT_COMMON_DIR | COMMON_REVERSE, CMD);
#else
LcdWrite(CMD_SELECT_COMMON_DIR | COMMON_NORMAL, CMD);
#endif
// Display inversion
#ifdef LCD_INVERSE
LcdWrite(CMD_NORM_INVERSE | DISPLAY_INVERSE,CMD);
#else
LcdWrite(CMD_NORM_INVERSE | DISPLAY_NORMAL,CMD);
#endif
// Power saver OFF
LcdWrite(CMD_ALL_POINTS_ON_OFF | POINTS_NORMAL,CMD);
// Internal voltage enable
LcdWrite(CMD_SET_POWER | ALL_ENABLE,CMD);
// Start line 0
LcdWrite(CMD_SET_START_LINE | 0x00, CMD);
// Others deafults
LcdWrite(CMD_SET_ICON_MODE | ICON_MODE_DISABLE,CMD);
LcdWrite(CMD_LINES_NUMBER | 0x00,CMD);
LcdWrite(CMD_SET_BIAS | 0x00,CMD);
// Add memory init code here
// clear LCD
LcdSetRow(0);
LcdSetCol(0);
for(i=0; i<LCD_BUFFER_SIZE-1; i++)
LcdWrite(0,DATA);
// Display ON
LcdWrite(CMD_ON_OFF | DISPLAY_ON,CMD);
}
/*
* LcdWriteStr
* Description: This function writes a string of characters to the LCD
* This function doesnt return until the LCD's BF is cleared.
*
* Arguments: str: string to write to LCD
* Return: None
*
* Input: None
* Output: LCD
*
* Operation: Choose the data register of the LCD then write each char of the
* string to the LCD.
*
* Revision History:
* Dec. 16, 2012 Nnoduka Eruchalu Initial Revision
*/
void LcdWriteStr(const char *str)
{
while (*str != '\0') {
LcdWrite(*str++);
}
}
void LcdTinyString(const char *characters, uint8_t inverse, uint8_t maxWidth)
{
uint8_t width = 0;
while (*characters && width < maxWidth)
{
if (*characters == 'm')
{
// special case 'm'
characters++;
if (width < maxWidth)
{
LcdWrite(LCD_DATA, inverse ? 0x3c ^ 0x7F : 0x3c);
width++;
}
if (width < maxWidth)
{
LcdWrite(LCD_DATA, inverse ? 0x04 ^ 0x7F : 0x04);
width++;
}
if (width < maxWidth)
{
LcdWrite(LCD_DATA, inverse ? 0x18 ^ 0x7F : 0x18);
width++;
}
if (width < maxWidth)
{
LcdWrite(LCD_DATA, inverse ? 0x04 ^ 0x7F : 0x04);
width++;
}
if (width < maxWidth)
{
LcdWrite(LCD_DATA, inverse ? 0x38 ^ 0x7F : 0x38);
width++;
}
if (width < maxWidth)
{
LcdWrite(LCD_DATA, inverse ? 0x7F : 0x00);
width++;
}
}
else
{
unsigned short charbase = (*characters++ - 0x20) * 3;
for (uint8_t index = 0; index < 3 && width < maxWidth; index++)
{
uint8_t pixels = pgm_read_byte((unsigned char*)tiny_font + charbase + index);
pixels = pixels << 1;
LcdWrite(LCD_DATA, inverse ? pixels ^ 0x7F : pixels);
width++;
}
if (width < maxWidth)
{
LcdWrite(LCD_DATA, inverse ? 0x7F : 0x00);
width++;
}
}
}
}
void LcdGoto(uint8_t x, uint8_t y)
{
LcdWrite(LCD_CMD, 0x80 | x);
LcdWrite(LCD_CMD, 0x40 | y);
}
