SerialGraphicLCD.cpp

00001 #include "SerialGraphicLCD.h"
00002 
00003 #define XSIZE 6
00004 #define YSIZE 9
00005 
00006 SerialGraphicLCD::SerialGraphicLCD(PinName tx, PinName rx): 
00007     Serial(tx, rx), _firmware(SFE_FW)
00008 {
00009     baud(115200);               // default baud rate
00010     resolution(LCD_128x64);     // default resolution
00011 }
00012 
00013 SerialGraphicLCD::SerialGraphicLCD(PinName tx, PinName rx, int firmware):
00014     Serial(tx, rx), _firmware(firmware)
00015 {
00016     baud(115200);               // default baud rate
00017     resolution(LCD_128x64);     // default resolution
00018 }
00019 
00020 void SerialGraphicLCD::clear() {
00021     putc(0x7c);
00022     putc(0x00);
00023 }
00024 
00025 void SerialGraphicLCD::pos(int col, int row) {
00026     if (_firmware == SD_FW)
00027         posXY(XSIZE*col, (YSIZE*row));
00028     else if (_firmware == SFE_FW)
00029         posXY(XSIZE*col, _yMax-(YSIZE*row)-1);
00030 }
00031 
00032 void SerialGraphicLCD::posXY(int x, int y) {
00033     putc(0x7c);
00034     putc(0x18);
00035     putc(x);
00036     putc(0x7c);
00037     putc(0x19);
00038     putc(y);
00039 }
00040 
00041 void SerialGraphicLCD::pixel(int x, int y, bool set) {
00042     putc(0x7c);
00043     putc(0x10);
00044     putc(x);
00045     putc(y);
00046     putc((set) ? 0x01 : 0x00);
00047 }
00048 
00049 void SerialGraphicLCD::line(int x1, int y1, int x2, int y2, bool set) {
00050     putc(0x7c);
00051     putc(0x0c);
00052     putc(x1);
00053     putc(y1);
00054     putc(x2);
00055     putc(y2);
00056     putc((set) ? 0x01 : 0x00);
00057 }
00058 
00059 void SerialGraphicLCD::circle(int x, int y, int r, bool set) {
00060     putc(0x7c);
00061     putc(0x03);
00062     putc(x);
00063     putc(y);
00064     putc(r);
00065     putc((set) ? 0x01 : 0x00);
00066 }
00067 
00068 // Unfortunately, the datasheet for the stock firmware is incorrect;
00069 // the box command does not take a 5th parameter for draw/erase like the others
00070 // However, it does in the sd firmware
00071 void SerialGraphicLCD::rect(int x1, int y1, int x2, int y2) {
00072     putc(0x7c);
00073     putc(0x0f);
00074     putc(x1);
00075     putc(y1);
00076     putc(x2);
00077     putc(y2);
00078     if (_firmware == SD_FW)
00079         putc(0x01);
00080 }
00081 
00082 void SerialGraphicLCD::rect(int x1, int y1, int x2, int y2, bool set) {
00083     putc(0x7c);
00084     putc(0x0f);
00085     putc(x1);
00086     putc(y1);
00087     putc(x2);
00088     putc(y2);
00089     if (_firmware == SD_FW)
00090         putc((set) ? 0x01 : 0x00);
00091 }
00092 
00093 void SerialGraphicLCD::rectFill(int x1, int y1, int x2, int y2, char fillByte) {
00094     if (_firmware == SD_FW) {
00095 
00096         // Bugs in firmware; if y2-y1 == 2, nothing drawn; if y2-y1 == 3, fill is 4 tall
00097 //        if ((y2 - y1) > 3) {
00098             putc(0x7c);
00099             putc(0x12);
00100             putc(x1);
00101             putc(y1);
00102             putc(x2+1); // bug in firmware, off-by-one on x2
00103             putc(y2);
00104             putc(fillByte);
00105 //        } else {
00106 //            for (int y=y1; y <= y2; y++)
00107 //                line(x1, y, x2, y, fillByte == FILL);
00108 //        }            
00109     }
00110 }
00111 
00112 void SerialGraphicLCD::erase(int x1, int y1, int x2, int y2) {
00113     putc(0x7c);
00114     putc(0x05);
00115     putc(x1);
00116     putc(y1);
00117     putc(x2);
00118     putc(y2);
00119 }
00120 
00121 void SerialGraphicLCD::backlight(int i) {
00122     if (i >= 0 && i <= 100) {
00123         putc(0x7c);
00124         putc(0x02);
00125         putc(i);
00126     }
00127 }
00128 
00129 void SerialGraphicLCD::reverseMode() {
00130     putc(0x7c);
00131     putc(0x12);
00132 }
00133 
00134 void SerialGraphicLCD::resolution(int type) {
00135     switch (type) {
00136     case LCD_128x64 :
00137         resolution(128, 64);
00138         break;
00139     case LCD_160x128 :
00140         resolution(160, 128);
00141         break;
00142     }
00143 }
00144 
00145 void SerialGraphicLCD::resolution(int x, int y) {
00146     _xMax = x;
00147     _yMax = y;
00148 }
00149 
00150 
00151 void SerialGraphicLCD::lcdbaud(int b) {
00152     if (b > 0 && b < 7) {
00153         putc(0x7c);
00154         putc(0x07);
00155         putc(b+'0');
00156     }
00157 }