int main( void )
{
LCD_init();
LCD_write("Hello World");
LCD_command(LCD_LINE2 | 5); // move cursor to row 2, position 5
LCD_write("is here");
}
void LCD_clear(int fd)
{
LCD_write(LCD_RS_CMD, LCD_CMD_CLEAR, fd);
delay(2);
LCD_write(LCD_RS_CMD, LCD_CMD_HOME, fd);
delay(2);
}
void
LCD_write_str(char *str, uint8_t pos){
LCD_write(RS_ADDR,pos);
while(*str != '\0'){
LCD_write(RS_DATA,*(str++));
}
}
void LCD_writeChar(char c) {
unsigned char i;
LCD_write(LCD_DATA,0); // blank vert col before char
for(i=0; i<5; i++) {
LCD_write(LCD_DATA,ASCII[c - 0x20][i]);
}
LCD_write(LCD_DATA,0); // Blank vert col after char
}
/* This function will write n char even if its the null char*/
void
LCD_write_nstr_f(char *str, uint8_t n, uint8_t pos){
LCD_write(RS_ADDR,pos);
for(; n>0; n--)
{
LCD_write(RS_DATA,*(str++));
}
}
/* This function will write the min of either the null char or n chars */
void
LCD_write_nstr(char *str, uint8_t n, uint8_t pos){
LCD_write(RS_ADDR,pos);
for(; (n>0)&&(*str!='\0'); n--)
{
LCD_write(RS_DATA,*(str++));
}
}
void line_wrapping(int8_t number)
{
if(number == 1)
{
LCD_write(FIRS_LINE,RS_COM);
}
else
LCD_write(SEC_LINE,RS_COM);
}
void LCD_menu2_line1(void)
{
LCD_write(LCD_LINE1_HOME, LCD_COMMAND);
LCD_data_delay();
LCD_write('M', LCD_DATA);
LCD_data_delay();
LCD_write(':', LCD_DATA);
LCD_data_delay();
LCD_write(' ', LCD_DATA);
}
void LCD_menu1_line2(void)
{
LCD_write(LCD_LINE2_HOME, LCD_COMMAND);
LCD_data_delay();
LCD_write('L', LCD_DATA);
LCD_data_delay();
LCD_write(':', LCD_DATA);
LCD_data_delay();
LCD_write(' ', LCD_DATA);
}
/*!
* \brief Initializing LCD by Instruction - 4-bit initialization
*/
void LCD_init(void)
{
_delay_ms(30); /* power on delay - wait more than 30 ms */
LCD_write(0); /* set RS, RW and EN low */
LCD_write( P_LCD_EN1 | P_LCD_EN2 | 0x30 ); /* lcd enable high */
LCD_write( 0x30 ); /* lcd enable low */
_delay_ms(5); /* wait 5 ms */
LCD_write( P_LCD_EN1 | P_LCD_EN2 | 0x30 ); /* lcd enable high */
LCD_write( 0x30 ); /* lcd enable low */
_delay_us(100); /* wait more than 100us */
LCD_write( P_LCD_EN1 | P_LCD_EN2 | 0x30 ); /* lcd enable high */
LCD_write( 0x30 ); /* lcd enable low */
_delay_us(100); /* wait more than 100us */
LCD_write( P_LCD_EN1 | P_LCD_EN2 | 0x20 ); /* lcd enable high */
LCD_write( 0x20 ); /* lcd enable low */
_delay_us(100); /* wait more than 100us */
LCD_sendcmd(LCD_EN1| LCD_EN2 | 0x28); /* 4 bit mode, 1/16 duty, 5x8 font */
LCD_sendcmd(LCD_EN1| LCD_EN2 | 0x08); /* display off */
LCD_sendcmd(LCD_EN1| LCD_EN2 | 0x01); /* display clear */
LCD_sendcmd(LCD_EN1| LCD_EN2 | 0x06); /* entry mode */
LCD_sendcmd(LCD_EN1| LCD_EN2 | 0x0f); /* display on, cursor off, blinking cursor off */
}
void LCD_init(int fd)
{
delay(40);
// Function Set。8bit bus mode, 2-line mode,normal font,normal instruction mode。
LCD_write(LCD_RS_CMD, 0b00111000, fd);
// Function Set。extension instruction modeへ。
LCD_write(LCD_RS_CMD, 0b00111001, fd);
// Internal OSC frequency(extension instruction mode)設定。
LCD_write(LCD_RS_CMD, 0b00010100, fd);
// Contrast set(extension instruction mode)。コントラスト値下位4bit設定。
LCD_write(LCD_RS_CMD, 0b01110000 | (LCD_CONTRAST & 0xF), fd);
// Power/ICON/Contrast set(extension instruction mode)。
// アイコン On,booster On,コントラスト値上位2bit設定。
LCD_write(LCD_RS_CMD, 0b01011100 | ((LCD_CONTRAST >> 4) & 0x3), fd);
// Follower control。internal follower on,
LCD_write(LCD_RS_CMD, 0b01101100, fd);
// 時間待ち。
delay(300);
// Function Set。normal instruction mode。
LCD_write(LCD_RS_CMD, 0b00111000, fd);
// Display On/Off。Display Onに設定。
LCD_write(LCD_RS_CMD, 0b00001100, fd);
// Clear Display。
LCD_write(LCD_RS_CMD, 0b00001100, fd);
// 時間待ち。
delay(2);
}
//initialize the lcd when power up
//the initialize sequence can be refered to the LCD datasheet
void LCD_init(void)
{
Databus_clear();
LCDBUS = PORT_OUTPUT;
delay_ms(50); // Wait VCC is rise
LCD_write(0x00, LCD_COMMAND);
LCD_startup_delay();
LCD_write(0x00, LCD_COMMAND);
LCD_startup_delay();
LCD_write(0x00, LCD_COMMAND);
LCD_startup_delay();
LCD_write(0x00, LCD_COMMAND);
LCD_startup_delay();
LCD_write(0x28, LCD_COMMAND); // Function Set
LCD_com_delay();
LCD_write(0x0C, LCD_COMMAND); // Display ON/OFF
LCD_com_delay();
LCD_write(0x06, LCD_COMMAND); // Entry Mode set
LCD_com_delay();
LCD_write(0x01, LCD_COMMAND); // Display Clear
LCD_com_delay();
LCD_menu_selection = LCD_MENU_PAGE_ONE;
LCD_menu1_line1(); //display line 1 of lcd menu 1
_delay_us(30);
LCD_menu1_line2(); //display line 2 of lcd menu 1
}
void LCD_write_string(unsigned char *str) //store address value of the string in pointer *str
{
int i=0;
char a;
while(str[i]!='\0') // loop will go on till the NULL character in the string
{
LCD_write(str[i]); // sending data on LCD byte by byte
i++;
}
a=248;
LCD_write(a);
a=67;
LCD_write(a);
return;
}
void main (void)
{
Init_Device();
SPI0CFG |= 0x07; //8 Bits pro Master-SPI-Transfer
EA=1;
LCD_init = 1; // Bit zur Verzweigung in der ISR
P5=0x0F;
CONTROL_LCD = SMB_BUS_ERROR;
LCD_write();
P2_0 = 1;
while(1)
{
// switch(P5)
// {
// case 0x07:
// {
SPI_read();
show_display(1,ken5);
// break;
// }
//
// default:
// {
// break;
// }
// }
}
}
LCDDriver::LCDDriver()
{
g_IOSet = CSingleton<CGlobalIOSet>::instance();
LCD_write(0x38,0);
Delay_ms(5);
LCD_write(0x38,0);
Delay_ms(5);
LCD_write(0x38,0);
LCD_write(0x10,0);
LCD_write(0x08,0);
LCD_write(0x01,0);
LCD_write(0x06,0);
LCD_write(0x0C,0);
LCD_write(0x80,0);
LCD_write('A',1);
}
void LCD_write_adress(uint8_t data, uint8_t adress)
{
_delay_ms(40);
// LCD_read_BF();
LCD_write(adress, RS_COM);
DDR_DATA |= 0xF0;
PORT_DATA |= 0xF0;
PORT_SIG &= ~(ON<<RW);
PORT_SIG|= (ON<<RS);// иначе 1 то данные
uint8_t tmp = data;
uint8_t temp = PORT_DATA & 0x0F;
temp |= (data &0xF0);
PORT_DATA = temp;
PORT_SIG|= (ON<<E);
_delay_ms(2);
PORT_SIG &= ~(ON<<E);
temp = PORT_DATA & 0x0F;
temp|= (tmp<<4);
PORT_DATA = temp;
PORT_SIG|= (ON<<E);
_delay_ms(2);
PORT_SIG &= ~(ON<<E);
_delay_ms(40);
}
//update part one of the lcd data
void LCD_data_update(u08 start_pos, u16 data, u08 type)
{
if(type == LCD_SHOW_BINARY)
{
u08tobinary(data);
}
else if(type == LCD_SHOW_U08)
{
u08toStr(data);
}
else if(type == LCD_SHOW_U16)
{
u16toStr(data);
}
else
{
return;
}
u08 i;
for(i=0;i<8;i++)
{
lcd_print_data[i] = lcd_binary_data[i];
}
LCD_write(start_pos, LCD_COMMAND);
LCD_data_delay();
print_data(0, 7);
}
void LCD_clear(void) {
unsigned char x,y;
for(y=0; y< LCD_HEIGHT >> 3; y++) {
for(x=0; x< LCD_WIDTH; x++) {
LCD_write(LCD_DATA, 0x00);
}
}
}
void LCD_write_str(int8_t *string)
{
while(*string)
{
LCD_write(*string,RS_DATA);
string++;
}
}
// Allows us to fill the first 8 CGRAM locations
// with custom characters
void LCD_createChar(uint8 location, uint8 charmap[]) {
location &= 0x7; // we only have 8 locations 0-7
LCD_command(LCD_SETCGRAMADDR | (location << 3));
int i;
for (i=0; i<8; i++) {
LCD_write(charmap[i]);
}
}
int LCDDriver::Show(void)
{
// TODO : implement
int i=0;
LCD_write(0x80,0);
for(i=0;i<16;i++)
{
LCD_write(frame[i],1);
Delay_ms(1);
}
LCD_write(0xC0,0);
for(i=0;i<16;i++)
{
LCD_write(frame[i+16],1);
Delay_ms(1);
}
}
/*****************************************************************************
Name: TransferBufferFixedLength
Parameters: position Line number of display
*Buff Buffer containing data to be written to display.
Last character should be null.
controller [1,2, 3(both)]
Returns: none
Description: This function controls LCD writes to line 1 or 2 of the LCD.
*****************************************************************************/
void TransferBufferFixedLength( _far const char * string, BYTE length )
{
BYTE controller =1;
int i;
for (i=0; i < length; i++)
{
LCD_write(DATA,*(string+i),controller);
}
}
void LCD_setCursor(unsigned char col, unsigned char row, int fd)
{
unsigned char offset[] = {0x00, 0x40};
if (row > 1) row = 1;
if (col > 16) col = 16;
LCD_write(LCD_RS_CMD, 0x80 | (col + offset[row]), fd);
}
void LCD_print(char data[])
{
uint8 size;
size = strlen(data);
uint8 i;
for (i = 0; i < size; i++) {
LCD_write(data[i]);
}
}
/*****************************************************************************
Name: TransferBuffer
Parameters: position Line number of display
*Buff Buffer containing data to be written to display.
Last character should be null.
controller [1,2, 3(both)]
Returns: none
Description: This function sends data in the buffer to LCD writes.
Writing beyond a controller limit will result in smooth
transition to the next controller.
*****************************************************************************/
void TransferBuffer(_far char * buffer)
{
BYTE controller=1;
do
{
LCD_write(DATA, *buffer++, controller);
}
while(*buffer);
}
int main(void) {
// Select 12MHz crystal oscillator
LPC_SC ->CLKSRCSEL = 1;
// Init PLL 0 to 100MHz
PLL_init(25, 2, 3);
// PLL_init(12, 1, 18); // 16MHz
SystemCoreClockUpdate();
volatile uint32_t i = 1;
while (i < (1 << 23)) { ++i; }
LCD_init();
LCD_function_set(BUS_WIDTH_8, LINE_COUNT_2, FONT_5_8);
i = 1;
while (i < (1 << 23)) { ++i; }
LCD_write('a');
LCD_write('b');
LCD_write('c');
LCD_write('d');
char c = 'e';
uint_fast8_t x = 0, y = 0;
while(1) {
LCD_write(c);
++c;
++x;
if (x > 15) {
x = 0;
y ^= 1;
}
LCD_move_cursor(x, y);
i = 1;
while (i < (1 << 23)) { ++i; }
}
return 0;
}
void display_volume(){
// Assume vol is two digits
char buf[2];
uint8_t i;
i = vol;
buf[1] = i%10 + '0';
buf[0] = i/10 + '0';
// clear screen
LCD_write(RS_ADDR, 0x01);
if(i == 0){
LCD_write_str("Mute",LCD_DDRAM_LINE1_ADDR+6);
}else{
LCD_write_nstr(buf,2,LCD_DDRAM_LINE1_ADDR+7);
}
LCD_write(RS_ADDR,LCD_DDRAM_LINE2_ADDR+3);
while(i-- > 0) LCD_write(RS_DATA,255);
}
/*!
* \brief Send data to LCD
*
* \param val data for display
* low byte => character, high byte => control (EN1, EN2, RS)
*
*/
void LCD_sendval( uint16_t val)
{
uint8_t ctrl = 0;
uint8_t tmp;
if (LCD_RS & val) ctrl |= P_LCD_RS; /* Do you expect a command ? */
if (LCD_EN1 & val) ctrl |= P_LCD_EN1; /* Do you expect work with first part of LCD ? */
if (LCD_EN2 & val) ctrl |= P_LCD_EN2; /* Do you expect work with second part of LCD ? */
tmp = ctrl | (val & 0xF0);
LCD_write( tmp ); /* high nibble ENABLE active */
tmp = (ctrl & ~(P_LCD_EN1 | P_LCD_EN2)) | (val & 0xF0);
LCD_write(tmp); /* high nibble */
tmp = ctrl | ((val & 0xf) << 4) ;
LCD_write( tmp ); /* low nibble ENABLE active */
tmp = (ctrl & ~(P_LCD_EN1 | P_LCD_EN2)) | ((val & 0xf) << 4);
LCD_write( tmp ); /* low nibble */
_delay_ms(2); /* The busy flag must be checked after the 4-bit data */
/* has been transferred twice. */
}
void LCD_menu2_line2(void)
{
LCD_write(LCD_LINE2_HOME, LCD_COMMAND);
LCD_data_delay();
LCD_write('V', LCD_DATA);
LCD_data_delay();
LCD_write('R', LCD_DATA);
LCD_data_delay();
LCD_write('0', LCD_DATA);
LCD_data_delay();
LCD_write(' ', LCD_DATA);
// LCD_write(0xC8, LCD_COMMAND);
// LCD_write('I', LCD_DATA);
// LCD_data_delay();
// LCD_write('R', LCD_DATA);
// LCD_data_delay();
// LCD_write(':', LCD_DATA);
// LCD_data_delay();
// LCD_write(' ', LCD_DATA);
}
void LCD_set_cursor(uint8_t line, uint8_t character){
uint8_t data = 0;
if(line == 1){
data = 0x80 + 0x00 + character;
LCD_write(data);
}
else if(line == 2){
data = 0x80 + 0x40 + character;
LCD_write(data);
}
else if(line == 3){
data = 0x80 + 0x10 + character;
LCD_write(data);
}
else{
data = 0x80 + 0x50 + character;
LCD_write(data);
}
}