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/*
Modified by Lauren
version 0.3
Any suggestions are welcome.
Editors : Lauren from DFRobot <Lauran.pan@gmail.com>
Stanley Huang <stanleyhuangyc@gmail.com>
Date : Feb. 11, 2012
* Added LCD_putchar for basic console display
* Have the back light under control.
* Update the library and sketch to compatible with IDE V1.0 and earlier
*/
#include "LCD4884.h"
#include "font_6x8.h"
#include "font_big.h"
#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#include "WConstants.h"
#endif
extern "C"
{
#include <avr/pgmspace.h>
#include <avr/io.h>
}
#define NUM_COL 14
#define NUM_ROW 5
LCD4884::LCD4884():prev_char(0),char_mode(MENU_NORMAL)
{};
LCD4884 lcd = LCD4884();
void LCD4884::backlight(unsigned char dat)
{
if(dat==1)
digitalWrite(LCD_BL,HIGH);
else
digitalWrite(LCD_BL,LOW);
}
void LCD4884::LCD_init(void)
{
for(unsigned char i = 2; i < 8; i++) {
pinMode(i,OUTPUT);
digitalWrite(i,LOW);
}
digitalWrite(LCD_RST,LOW);
delayMicroseconds(1);
digitalWrite(LCD_RST,HIGH);
digitalWrite(SPI_CS,LOW);
delayMicroseconds(1);
digitalWrite(SPI_CS,HIGH);
delayMicroseconds(1);
digitalWrite(LCD_BL,HIGH);
LCD_write_byte(0x21, 0);
LCD_write_byte(0xc0, 0);
LCD_write_byte(0x06, 0);
LCD_write_byte(0x13, 0);
LCD_write_byte(0x20, 0);
LCD_clear();
LCD_write_byte(0x0c, 0);
digitalWrite(SPI_CS,LOW);
}
void LCD4884::LCD_write_byte(unsigned char dat, unsigned char dat_type)
{
digitalWrite(SPI_CS,LOW);
if (dat_type == 0)
digitalWrite(LCD_DC,LOW);
else
digitalWrite(LCD_DC,HIGH);
for(unsigned char i=0; i<8; i++) {
if(dat & 0x80) {
digitalWrite(SPI_MOSI,HIGH);
} else {
digitalWrite(SPI_MOSI,LOW);
}
digitalWrite(SPI_SCK,LOW);
dat = dat << 1;
digitalWrite(SPI_SCK,HIGH);
}
digitalWrite(SPI_CS,HIGH);
}
void LCD4884::LCD_draw_bmp_pixel(unsigned char X,unsigned char Y,unsigned char *map,
unsigned char Pix_x,unsigned char Pix_y)
{
unsigned int i,n;
unsigned char row;
if (Pix_y%8==0)
row=Pix_y/8;
else
row=Pix_y/8+1;
for (n=0;n<row;n++) {
LCD_set_XY(X,Y);
for(i=0; i<Pix_x; i++) {
LCD_write_byte(map[i+n*Pix_x], 1);
}
Y++;
}
}
void LCD4884::LCD_write_string(unsigned char X,unsigned char Y,char *s, char mode)
{
LCD_set_XY(X,Y);
while (*s) {
LCD_write_char(*s, mode);
s++;
}
}
void LCD4884::LCD_write_string(char *s, char mode)
{
while (*s) {
LCD_write_char(*s, mode);
s++;
}
}
void LCD4884::LCD_write_chinese(unsigned char X, unsigned char Y,unsigned char *c,unsigned char ch_with,unsigned char num,unsigned char line,unsigned char row)
{
LCD_set_XY(X,Y);
for (unsigned char i=0;i<num;) {
for (unsigned char n=0; n<ch_with*2; n++) {
if (n==ch_with) {
if (i==0)
LCD_set_XY(X,Y+1);
else
LCD_set_XY((X+(ch_with+row)*i),Y+1);
}
LCD_write_byte(c[(i*ch_with*2)+n],1);
}
i++;
LCD_set_XY((X+(ch_with+row)*i),Y);
}
}
void LCD4884::LCD_write_string_big ( unsigned char X,unsigned char Y, char *string, char mode )
{
while ( *string ){
LCD_write_char_big( X, Y, *string , mode );
if(*string++ == '.')
X += 5;
else
X += 12;
}
}
/* write char in big font */
void LCD4884::LCD_write_char_big (unsigned char X,unsigned char Y, unsigned char ch, char mode)
{
unsigned char i, j;
unsigned char *pFont;
unsigned char ch_dat;
pFont = (unsigned char *) big_number;
switch (ch) {
case '.':
ch = 10;
break;
case '+':
ch = 11;
break;
case '-':
ch = 12;
break;
case ' ':
for(i=0;i<3;i++) {
LCD_set_XY ( X, Y+i);
for(j=0; j<16; j++) {
LCD_write_byte( (mode == MENU_NORMAL)? 0 : 0xff, 1);
}
}
return;
break;
default:
ch = ch & 0x0f;
}
for(i=0;i<3;i++) {
LCD_set_XY ( X, Y+i);
for(j=0; j<16; j++){
ch_dat = pgm_read_byte(pFont+ch*48 + i*16 +j);
LCD_write_byte( (mode == MENU_NORMAL)? ch_dat : (ch_dat^0xff), 1);
}
}
}
void LCD4884::LCD_write_char(unsigned char c, char mode)
{
unsigned char line;
unsigned char *pFont;
byte ch;
pFont = (unsigned char *)font6_8;
c -= 32;
for (line=0; line<6; line++) {
ch = pgm_read_byte(pFont+c*6+line);
LCD_write_byte( (mode==MENU_NORMAL)? ch: (ch^ 0xff) , 1);
}
x = (x + 1) % NUM_COL;
}
void LCD4884::LCD_set_XY(unsigned char X, unsigned char Y)
{
LCD_write_byte(0x40 | Y, 0); // column
LCD_write_byte(0x80 | X, 0); // row
x = X;
}
void LCD4884::LCD_clear(void)
{
unsigned int i;
LCD_write_byte(0x0c, 0);
LCD_write_byte(0x80, 0);
for (i=0; i<504; i++)
LCD_write_byte(0, 1);
x = 0;
}
void LCD4884::LCD_write_title(char* title)
{
LCD_set_XY(0, 0);
for (char n = 0; n < NUM_COL; n++)
LCD_write_char(' ', MENU_HIGHLIGHT);
LCD_write_string((NUM_COL - strlen(title)) * 3, 0, title, MENU_HIGHLIGHT);
LCD_set_XY(0, 1);
}
void LCD4884::LCD_putchar(char c)
{
if (prev_char == 27) {
switch (c) {
case '0':
LCD_clear();
break;
case '1':
LCD_set_XY(0, 0);
break;
case '2':
char_mode = MENU_NORMAL;
break;
case '3':
char_mode = MENU_HIGHLIGHT;
break;
case '4':
backlight(ON);
break;
case '5':
backlight(OFF);
break;
}
} else {
switch (c) {
case '\r':
for (char n = x; n < NUM_COL; n++) {
LCD_write_char(' ', char_mode);
}
break;
case '\n':
break;
default:
LCD_write_char(c, char_mode);
}
}
prev_char = c;
}
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