Tim Vukman
Code for Nokia LCD (text ) based on Epson controller. This is on the new Sparkfun board with the two switches.sx
Diff: Nokia_Epson.cpp
- Revision:
- 0:d6d054c554ae
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Nokia_Epson.cpp Tue May 25 23:02:44 2010 +0000
@@ -0,0 +1,320 @@
+ /* mbed Library - Nokia_Epson
+ * Copyright (c) 2007, sford
+ */
+
+ #include "Nokia_Epson.h"
+
+ #include "mbed.h"
+
+ using namespace mbed;
+
+ const unsigned char FONT8x8[97][8] = {
+ 0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00, // columns, rows, num_bytes_per_char
+ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // space 0x20
+ 0x30,0x78,0x78,0x30,0x30,0x00,0x30,0x00, // !
+ 0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00, // "
+ 0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00, // #
+ 0x18,0x3E,0x60,0x3C,0x06,0x7C,0x18,0x00, // $
+ 0x00,0x63,0x66,0x0C,0x18,0x33,0x63,0x00, // %
+ 0x1C,0x36,0x1C,0x3B,0x6E,0x66,0x3B,0x00, // &
+ 0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00, // '
+ 0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00, // (
+ 0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00, // )
+ 0x00,0x66,0x3C,0xFF,0x3C,0x66,0x00,0x00, // *
+ 0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00, // +
+ 0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x30, // ,
+ 0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00, // -
+ 0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00, // .
+ 0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00, // / (forward slash)
+ 0x3E,0x63,0x63,0x6B,0x63,0x63,0x3E,0x00, // 0 0x30
+ 0x18,0x38,0x58,0x18,0x18,0x18,0x7E,0x00, // 1
+ 0x3C,0x66,0x06,0x1C,0x30,0x66,0x7E,0x00, // 2
+ 0x3C,0x66,0x06,0x1C,0x06,0x66,0x3C,0x00, // 3
+ 0x0E,0x1E,0x36,0x66,0x7F,0x06,0x0F,0x00, // 4
+ 0x7E,0x60,0x7C,0x06,0x06,0x66,0x3C,0x00, // 5
+ 0x1C,0x30,0x60,0x7C,0x66,0x66,0x3C,0x00, // 6
+ 0x7E,0x66,0x06,0x0C,0x18,0x18,0x18,0x00, // 7
+ 0x3C,0x66,0x66,0x3C,0x66,0x66,0x3C,0x00, // 8
+ 0x3C,0x66,0x66,0x3E,0x06,0x0C,0x38,0x00, // 9
+ 0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x00, // :
+ 0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x30, // ;
+ 0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00, // <
+ 0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00, // =
+ 0x30,0x18,0x0C,0x06,0x0C,0x18,0x30,0x00, // >
+ 0x3C,0x66,0x06,0x0C,0x18,0x00,0x18,0x00, // ?
+ 0x3E,0x63,0x6F,0x69,0x6F,0x60,0x3E,0x00, // @ 0x40
+ 0x18,0x3C,0x66,0x66,0x7E,0x66,0x66,0x00, // A
+ 0x7E,0x33,0x33,0x3E,0x33,0x33,0x7E,0x00, // B
+ 0x1E,0x33,0x60,0x60,0x60,0x33,0x1E,0x00, // C
+ 0x7C,0x36,0x33,0x33,0x33,0x36,0x7C,0x00, // D
+ 0x7F,0x31,0x34,0x3C,0x34,0x31,0x7F,0x00, // E
+ 0x7F,0x31,0x34,0x3C,0x34,0x30,0x78,0x00, // F
+ 0x1E,0x33,0x60,0x60,0x67,0x33,0x1F,0x00, // G
+ 0x66,0x66,0x66,0x7E,0x66,0x66,0x66,0x00, // H
+ 0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // I
+ 0x0F,0x06,0x06,0x06,0x66,0x66,0x3C,0x00, // J
+ 0x73,0x33,0x36,0x3C,0x36,0x33,0x73,0x00, // K
+ 0x78,0x30,0x30,0x30,0x31,0x33,0x7F,0x00, // L
+ 0x63,0x77,0x7F,0x7F,0x6B,0x63,0x63,0x00, // M
+ 0x63,0x73,0x7B,0x6F,0x67,0x63,0x63,0x00, // N
+ 0x3E,0x63,0x63,0x63,0x63,0x63,0x3E,0x00, // O
+ 0x7E,0x33,0x33,0x3E,0x30,0x30,0x78,0x00, // P 0x50
+ 0x3C,0x66,0x66,0x66,0x6E,0x3C,0x0E,0x00, // Q
+ 0x7E,0x33,0x33,0x3E,0x36,0x33,0x73,0x00, // R
+ 0x3C,0x66,0x30,0x18,0x0C,0x66,0x3C,0x00, // S
+ 0x7E,0x5A,0x18,0x18,0x18,0x18,0x3C,0x00, // T
+ 0x66,0x66,0x66,0x66,0x66,0x66,0x7E,0x00, // U
+ 0x66,0x66,0x66,0x66,0x66,0x3C,0x18,0x00, // V
+ 0x63,0x63,0x63,0x6B,0x7F,0x77,0x63,0x00, // W
+ 0x63,0x63,0x36,0x1C,0x1C,0x36,0x63,0x00, // X
+ 0x66,0x66,0x66,0x3C,0x18,0x18,0x3C,0x00, // Y
+ 0x7F,0x63,0x46,0x0C,0x19,0x33,0x7F,0x00, // Z
+ 0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00, // [
+ 0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00, // \ (back slash)
+ 0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00, // ]
+ 0x08,0x1C,0x36,0x63,0x00,0x00,0x00,0x00, // ^
+ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF, // _
+ 0x18,0x18,0x0C,0x00,0x00,0x00,0x00,0x00, // ` 0x60
+ 0x00,0x00,0x3C,0x06,0x3E,0x66,0x3B,0x00, // a
+ 0x70,0x30,0x3E,0x33,0x33,0x33,0x6E,0x00, // b
+ 0x00,0x00,0x3C,0x66,0x60,0x66,0x3C,0x00, // c
+ 0x0E,0x06,0x3E,0x66,0x66,0x66,0x3B,0x00, // d
+ 0x00,0x00,0x3C,0x66,0x7E,0x60,0x3C,0x00, // e
+ 0x1C,0x36,0x30,0x78,0x30,0x30,0x78,0x00, // f
+ 0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x7C, // g
+ 0x70,0x30,0x36,0x3B,0x33,0x33,0x73,0x00, // h
+ 0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00, // i
+ 0x06,0x00,0x06,0x06,0x06,0x66,0x66,0x3C, // j
+ 0x70,0x30,0x33,0x36,0x3C,0x36,0x73,0x00, // k
+ 0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // l
+ 0x00,0x00,0x66,0x7F,0x7F,0x6B,0x63,0x00, // m
+ 0x00,0x00,0x7C,0x66,0x66,0x66,0x66,0x00, // n
+ 0x00,0x00,0x3C,0x66,0x66,0x66,0x3C,0x00, // o
+ 0x00,0x00,0x6E,0x33,0x33,0x3E,0x30,0x78, // p
+ 0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x0F, // q
+ 0x00,0x00,0x6E,0x3B,0x33,0x30,0x78,0x00, // r
+ 0x00,0x00,0x3E,0x60,0x3C,0x06,0x7C,0x00, // s
+ 0x08,0x18,0x3E,0x18,0x18,0x1A,0x0C,0x00, // t
+ 0x00,0x00,0x66,0x66,0x66,0x66,0x3B,0x00, // u
+ 0x00,0x00,0x66,0x66,0x66,0x3C,0x18,0x00, // v
+ 0x00,0x00,0x63,0x6B,0x7F,0x7F,0x36,0x00, // w
+ 0x00,0x00,0x63,0x36,0x1C,0x36,0x63,0x00, // x
+ 0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x7C, // y
+ 0x00,0x00,0x7E,0x4C,0x18,0x32,0x7E,0x00, // z
+ 0x0E,0x18,0x18,0x70,0x18,0x18,0x0E,0x00, // {
+ 0x0C,0x0C,0x0C,0x00,0x0C,0x0C,0x0C,0x00, // |
+ 0x70,0x18,0x18,0x0E,0x18,0x18,0x70,0x00, // }
+ 0x3B,0x6E,0x00,0x00,0x00,0x00,0x00,0x00, // ~
+ 0x1C,0x36,0x36,0x1C,0x00,0x00,0x00,0x00}; // DEL
+
+ void Nokia_Epson::command(int value) {
+ _spi.write(value & 0xFF);
+ }
+
+ void Nokia_Epson::data(int value) {
+ _spi.write(value | 0x100);
+ }
+
+ void Nokia_Epson::_select() {
+ _cs = 0;
+ }
+
+ void Nokia_Epson::_deselect() {
+ _cs = 1;
+ }
+
+ int Nokia_Epson::width() {
+ return _width;
+ }
+
+ int Nokia_Epson::height() {
+ return _height;
+ }
+
+ int Nokia_Epson::columns() {
+ return _columns;
+ }
+
+ int Nokia_Epson::rows() {
+ return _rows;
+ }
+
+ void Nokia_Epson::foreground(int v) {
+ _foreground = v;
+ }
+
+ void Nokia_Epson::background(int v) {
+ _background = v;
+ }
+
+ void Nokia_Epson::locate(int column, int row) {
+ _row = row;
+ _column = column;
+ }
+
+ void Nokia_Epson::newline() {
+ _column = 0;
+ _row++;
+ if(_row >= _rows) {
+ _row = 0;
+ }
+ }
+
+ /*************************************************************************/
+
+ Nokia_Epson::Nokia_Epson(PinName mosi, PinName miso, PinName clk, PinName cs, PinName rst)
+ : _spi(mosi, miso, clk)
+ , _rst(rst)
+ , _cs(cs) {
+
+ _row = 0;
+ _column = 0;
+ _rows = 16;
+ _columns = 16;
+ _width = 130;
+ _height = 130;
+ foreground(0xFFFFFF);
+ background(0x000000);
+ reset();
+ }
+
+ void Nokia_Epson::reset() {
+
+ _cs = 1;
+ _rst = 0;
+ _spi.format(9);
+ _spi.frequency(5000000);
+
+ wait_ms(1);
+
+ _rst = 1;
+
+ wait_ms(1);
+
+ _select();
+
+ command(0xCA); // display control
+ data(0x0);
+ data(31);
+ data(0x0);
+
+ command(0xBB); // scan
+ data(0x1);
+
+ command(0xD1); // oscillator on
+ command(0x94); // sleep out
+ command(0x20); // power control
+ data(0x0F);
+
+ command(0xA7); // invert display
+
+ command(0x81); // Voltage control
+ data(39); // contrast setting: 0..63
+ data(3); // resistance ratio
+
+ wait_ms(1);
+
+ command(0xBC); // data control
+ data(0x0); // scan dirs
+ data(0x0); // RGB
+ data(0x2); // grayscale
+
+ command(0xAF); // turn on the display
+
+ _deselect();
+
+ cls();
+ }
+
+ void Nokia_Epson::_window(int x, int y, int width, int height) {
+ int x1, x2, y1, y2;
+ x1 = x + 0;
+ y1 = y + 2;
+ x2 = x1 + width - 1;
+ y2 = y1 + height - 1;
+ command(0x15); // column
+ data(x1);
+ data(x2);
+ command(0x75); // page
+ data(y1);
+ data(y2);
+ command(0x5C); // start write to ram
+ }
+
+ void Nokia_Epson::fill(int x, int y, int width, int height, int colour) {
+ _select();
+ _window(x, y, width, height);
+
+ int r4 = (colour >> (16 + 4)) & 0xF;
+ int g4 = (colour >> (8 + 4)) & 0xF;
+ int b4 = (colour >> (0 + 4)) & 0xF;
+
+ int d1 = (r4 << 4) | g4;
+ int d2 = (b4 << 4) | r4;
+ int d3 = (g4 << 4) | b4;
+
+ for(int i=0; i<(width*height+1)/2; i++) {
+ data(d1);
+ data(d2);
+ data(d3);
+ }
+ _deselect();
+ }
+
+ void Nokia_Epson::bitblit(int x, int y, int width, int height, const char* bitstream) {
+ _select();
+ _window(x, y, width, height);
+ for(int i=0; i<height*width/2; i++) {
+ int byte1 = (i*2) / 8;
+ int bit1 = (i*2) % 8;
+ int colour1 = ((bitstream[byte1] << bit1) & 0x80) ? _foreground : _background;
+ int byte2 = (i*2+1) / 8;
+ int bit2 = (i*2+1) % 8;
+ int colour2 = ((bitstream[byte2] << bit2) & 0x80) ? _foreground : _background;
+
+ int r41 = (colour1 >> (16 + 4)) & 0xF;
+ int g41 = (colour1 >> (8 + 4)) & 0xF;
+ int b41 = (colour1 >> (0 + 4)) & 0xF;
+
+ int r42 = (colour2 >> (16 + 4)) & 0xF;
+ int g42 = (colour2 >> (8 + 4)) & 0xF;
+ int b42 = (colour2 >> (0 + 4)) & 0xF;
+ int d1 = (r41 << 4) | g41;
+ int d2 = (b41 << 4) | r42;
+ int d3 = (g42 << 4) | b42;
+ data(d1);
+ data(d2);
+ data(d3);
+ }
+ _deselect();
+ }
+
+ void Nokia_Epson::cls() {
+ fill(0, 0, 130, 130, _background);
+ _row = 0;
+ _column = 0;
+ }
+
+ int Nokia_Epson::_putc(int value) {
+ int x = _column * 8; // FIXME: Char sizes
+ int y = _row * 8;
+ bitblit(x + 1, y + 1, 8, 8, (char*)&(FONT8x8[value - 0x1F][0]));
+
+ _column++;
+
+ if(_column >= _columns) {
+ _row++;
+ _column = 0;
+ }
+
+ if(_row >= _rows) {
+ _row = 0;
+ }
+
+ return value;
+ }
+
+ void Nokia_Epson::pixel(int x, int y, int colour) {
+ fill(x, y, 1, 1, colour);
+ }
+