-#include "RrdGlcd.h"
-
-static const uint8_t font5x7[] = {
- // each of the 5 bytes is an X bit the first byte being X==0, the last being X==5
- // bit0 is y==0, bit7 is y==7
- 0x00,0x00,0x00,0x00,0x00, // ascii 0
- 0x3e,0x5b,0x4f,0x5b,0x3e, // ascii 1
- 0x3e,0x6b,0x4f,0x6b,0x3e, // ascii 2 .. etc
- 0x1c,0x3e,0x7c,0x3e,0x1c,
- 0x18,0x3c,0x7e,0x3c,0x18,
- 0x1c,0x57,0x7d,0x57,0x1c,
- 0x1c,0x5e,0x7f,0x5e,0x1c,
- 0x00,0x18,0x3c,0x18,0x00,
- 0xff,0xe7,0xc3,0xe7,0xff,
- 0x00,0x18,0x24,0x18,0x00,
- 0xff,0xe7,0xdb,0xe7,0xff,
- 0x30,0x48,0x3a,0x06,0x0e,
- 0x26,0x29,0x79,0x29,0x26,
- 0x40,0x7f,0x05,0x05,0x07,
- 0x40,0x7f,0x05,0x25,0x3f,
- 0x5a,0x3c,0xe7,0x3c,0x5a,
- 0x7f,0x3e,0x1c,0x1c,0x08,
- 0x08,0x1c,0x1c,0x3e,0x7f,
- 0x14,0x22,0x7f,0x22,0x14,
- 0x5f,0x5f,0x00,0x5f,0x5f,
- 0x06,0x09,0x7f,0x01,0x7f,
- 0x00,0x66,0x89,0x95,0x6a,
- 0x60,0x60,0x60,0x60,0x60,
- 0x94,0xa2,0xff,0xa2,0x94,
- 0x08,0x04,0x7e,0x04,0x08,
- 0x10,0x20,0x7e,0x20,0x10,
- 0x08,0x08,0x2a,0x1c,0x08,
- 0x08,0x1c,0x2a,0x08,0x08,
- 0x1e,0x10,0x10,0x10,0x10,
- 0x0c,0x1e,0x0c,0x1e,0x0c,
- 0x30,0x38,0x3e,0x38,0x30,
- 0x06,0x0e,0x3e,0x0e,0x06,
- 0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x5f,0x00,0x00,
- 0x00,0x07,0x00,0x07,0x00,
- 0x14,0x7f,0x14,0x7f,0x14,
- 0x24,0x2a,0x7f,0x2a,0x12,
- 0x23,0x13,0x08,0x64,0x62,
- 0x36,0x49,0x56,0x20,0x50,
- 0x00,0x08,0x07,0x03,0x00,
- 0x00,0x1c,0x22,0x41,0x00,
- 0x00,0x41,0x22,0x1c,0x00,
- 0x2a,0x1c,0x7f,0x1c,0x2a,
- 0x08,0x08,0x3e,0x08,0x08,
- 0x00,0x80,0x70,0x30,0x00,
- 0x08,0x08,0x08,0x08,0x08,
- 0x00,0x00,0x60,0x60,0x00,
- 0x20,0x10,0x08,0x04,0x02,
- 0x3e,0x51,0x49,0x45,0x3e,
- 0x00,0x42,0x7f,0x40,0x00,
- 0x72,0x49,0x49,0x49,0x46,
- 0x21,0x41,0x49,0x4d,0x33,
- 0x18,0x14,0x12,0x7f,0x10,
- 0x27,0x45,0x45,0x45,0x39,
- 0x3c,0x4a,0x49,0x49,0x31,
- 0x41,0x21,0x11,0x09,0x07,
- 0x36,0x49,0x49,0x49,0x36,
- 0x46,0x49,0x49,0x29,0x1e,
- 0x00,0x00,0x14,0x00,0x00,
- 0x00,0x40,0x34,0x00,0x00,
- 0x00,0x08,0x14,0x22,0x41,
- 0x14,0x14,0x14,0x14,0x14,
- 0x00,0x41,0x22,0x14,0x08,
- 0x02,0x01,0x59,0x09,0x06,
- 0x3e,0x41,0x5d,0x59,0x4e,
- 0x7c,0x12,0x11,0x12,0x7c,
- 0x7f,0x49,0x49,0x49,0x36,
- 0x3e,0x41,0x41,0x41,0x22,
- 0x7f,0x41,0x41,0x41,0x3e,
- 0x7f,0x49,0x49,0x49,0x41,
- 0x7f,0x09,0x09,0x09,0x01,
- 0x3e,0x41,0x41,0x51,0x73,
- 0x7f,0x08,0x08,0x08,0x7f,
- 0x00,0x41,0x7f,0x41,0x00,
- 0x20,0x40,0x41,0x3f,0x01,
- 0x7f,0x08,0x14,0x22,0x41,
- 0x7f,0x40,0x40,0x40,0x40,
- 0x7f,0x02,0x1c,0x02,0x7f,
- 0x7f,0x04,0x08,0x10,0x7f,
- 0x3e,0x41,0x41,0x41,0x3e,
- 0x7f,0x09,0x09,0x09,0x06,
- 0x3e,0x41,0x51,0x21,0x5e,
- 0x7f,0x09,0x19,0x29,0x46,
- 0x26,0x49,0x49,0x49,0x32,
- 0x03,0x01,0x7f,0x01,0x03,
- 0x3f,0x40,0x40,0x40,0x3f,
- 0x1f,0x20,0x40,0x20,0x1f,
- 0x3f,0x40,0x38,0x40,0x3f,
- 0x63,0x14,0x08,0x14,0x63,
- 0x03,0x04,0x78,0x04,0x03,
- 0x61,0x59,0x49,0x4d,0x43,
- 0x00,0x7f,0x41,0x41,0x41,
- 0x02,0x04,0x08,0x10,0x20,
- 0x00,0x41,0x41,0x41,0x7f,
- 0x04,0x02,0x01,0x02,0x04,
- 0x40,0x40,0x40,0x40,0x40,
- 0x00,0x03,0x07,0x08,0x00,
- 0x20,0x54,0x54,0x78,0x40,
- 0x7f,0x28,0x44,0x44,0x38,
- 0x38,0x44,0x44,0x44,0x28,
- 0x38,0x44,0x44,0x28,0x7f,
- 0x38,0x54,0x54,0x54,0x18,
- 0x00,0x08,0x7e,0x09,0x02,
- 0x18,0xa4,0xa4,0x9c,0x78,
- 0x7f,0x08,0x04,0x04,0x78,
- 0x00,0x44,0x7d,0x40,0x00,
- 0x20,0x40,0x40,0x3d,0x00,
- 0x7f,0x10,0x28,0x44,0x00,
- 0x00,0x41,0x7f,0x40,0x00,
- 0x7c,0x04,0x78,0x04,0x78,
- 0x7c,0x08,0x04,0x04,0x78,
- 0x38,0x44,0x44,0x44,0x38,
- 0xfc,0x18,0x24,0x24,0x18,
- 0x18,0x24,0x24,0x18,0xfc,
- 0x7c,0x08,0x04,0x04,0x08,
- 0x48,0x54,0x54,0x54,0x24,
- 0x04,0x04,0x3f,0x44,0x24,
- 0x3c,0x40,0x40,0x20,0x7c,
- 0x1c,0x20,0x40,0x20,0x1c,
- 0x3c,0x40,0x30,0x40,0x3c,
- 0x44,0x28,0x10,0x28,0x44,
- 0x4c,0x90,0x90,0x90,0x7c,
- 0x44,0x64,0x54,0x4c,0x44,
- 0x00,0x08,0x36,0x41,0x00,
- 0x00,0x00,0x77,0x00,0x00,
- 0x00,0x41,0x36,0x08,0x00,
- 0x02,0x01,0x02,0x04,0x02,
- 0x3c,0x26,0x23,0x26,0x3c,
- 0x1e,0xa1,0xa1,0x61,0x12,
- 0x3a,0x40,0x40,0x20,0x7a,
- 0x38,0x54,0x54,0x55,0x59,
- 0x21,0x55,0x55,0x79,0x41,
- 0x21,0x54,0x54,0x78,0x41,
- 0x21,0x55,0x54,0x78,0x40,
- 0x20,0x54,0x55,0x79,0x40,
- 0x0c,0x1e,0x52,0x72,0x12,
- 0x39,0x55,0x55,0x55,0x59,
- 0x39,0x54,0x54,0x54,0x59,
- 0x39,0x55,0x54,0x54,0x58,
- 0x00,0x00,0x45,0x7c,0x41,
- 0x00,0x02,0x45,0x7d,0x42,
- 0x00,0x01,0x45,0x7c,0x40,
- 0xf0,0x29,0x24,0x29,0xf0,
- 0xf0,0x28,0x25,0x28,0xf0,
- 0x7c,0x54,0x55,0x45,0x00,
- 0x20,0x54,0x54,0x7c,0x54,
- 0x7c,0x0a,0x09,0x7f,0x49,
- 0x32,0x49,0x49,0x49,0x32,
- 0x32,0x48,0x48,0x48,0x32,
- 0x32,0x4a,0x48,0x48,0x30,
- 0x3a,0x41,0x41,0x21,0x7a,
- 0x3a,0x42,0x40,0x20,0x78,
- 0x00,0x9d,0xa0,0xa0,0x7d,
- 0x39,0x44,0x44,0x44,0x39,
- 0x3d,0x40,0x40,0x40,0x3d,
- 0x3c,0x24,0xff,0x24,0x24,
- 0x48,0x7e,0x49,0x43,0x66,
- 0x2b,0x2f,0xfc,0x2f,0x2b,
- 0xff,0x09,0x29,0xf6,0x20,
- 0xc0,0x88,0x7e,0x09,0x03,
- 0x20,0x54,0x54,0x79,0x41,
- 0x00,0x00,0x44,0x7d,0x41,
- 0x30,0x48,0x48,0x4a,0x32,
- 0x38,0x40,0x40,0x22,0x7a,
- 0x00,0x7a,0x0a,0x0a,0x72,
- 0x7d,0x0d,0x19,0x31,0x7d,
- 0x26,0x29,0x29,0x2f,0x28,
- 0x26,0x29,0x29,0x29,0x26,
- 0x30,0x48,0x4d,0x40,0x20,
- 0x38,0x08,0x08,0x08,0x08,
- 0x08,0x08,0x08,0x08,0x38,
- 0x2f,0x10,0xc8,0xac,0xba,
- 0x2f,0x10,0x28,0x34,0xfa,
- 0x00,0x00,0x7b,0x00,0x00,
- 0x08,0x14,0x2a,0x14,0x22,
- 0x22,0x14,0x2a,0x14,0x08,
- 0xaa,0x00,0x55,0x00,0xaa,
- 0xaa,0x55,0xaa,0x55,0xaa,
- 0x55,0xaa,0x55,0xaa,0x55,
- 0x00,0x00,0x00,0xff,0x00,
- 0x10,0x10,0x10,0xff,0x00,
- 0x14,0x14,0x14,0xff,0x00,
- 0x10,0x10,0xff,0x00,0xff,
- 0x10,0x10,0xf0,0x10,0xf0,
- 0x14,0x14,0x14,0xfc,0x00,
- 0x14,0x14,0xf7,0x00,0xff,
- 0x00,0x00,0xff,0x00,0xff,
- 0x14,0x14,0xf4,0x04,0xfc,
- 0x14,0x14,0x17,0x10,0x1f,
- 0x10,0x10,0x1f,0x10,0x1f,
- 0x14,0x14,0x14,0x1f,0x00,
- 0x10,0x10,0x10,0xf0,0x00,
- 0x00,0x00,0x00,0x1f,0x10,
- 0x10,0x10,0x10,0x1f,0x10,
- 0x10,0x10,0x10,0xf0,0x10,
- 0x00,0x00,0x00,0xff,0x10,
- 0x10,0x10,0x10,0x10,0x10,
- 0x10,0x10,0x10,0xff,0x10,
- 0x00,0x00,0x00,0xff,0x14,
- 0x00,0x00,0xff,0x00,0xff,
- 0x00,0x00,0x1f,0x10,0x17,
- 0x00,0x00,0xfc,0x04,0xf4,
- 0x14,0x14,0x17,0x10,0x17,
- 0x14,0x14,0xf4,0x04,0xf4,
- 0x00,0x00,0xff,0x00,0xf7,
- 0x14,0x14,0x14,0x14,0x14,
- 0x14,0x14,0xf7,0x00,0xf7,
- 0x14,0x14,0x14,0x17,0x14,
- 0x10,0x10,0x1f,0x10,0x1f,
- 0x14,0x14,0x14,0xf4,0x14,
- 0x10,0x10,0xf0,0x10,0xf0,
- 0x00,0x00,0x1f,0x10,0x1f,
- 0x00,0x00,0x00,0x1f,0x14,
- 0x00,0x00,0x00,0xfc,0x14,
- 0x00,0x00,0xf0,0x10,0xf0,
- 0x10,0x10,0xff,0x10,0xff,
- 0x14,0x14,0x14,0xff,0x14,
- 0x10,0x10,0x10,0x1f,0x00,
- 0x00,0x00,0x00,0xf0,0x10,
- 0xff,0xff,0xff,0xff,0xff,
- 0xf0,0xf0,0xf0,0xf0,0xf0,
- 0xff,0xff,0xff,0x00,0x00,
- 0x00,0x00,0x00,0xff,0xff,
- 0x0f,0x0f,0x0f,0x0f,0x0f,
- 0x38,0x44,0x44,0x38,0x44,
- 0x7c,0x2a,0x2a,0x3e,0x14,
- 0x7e,0x02,0x02,0x06,0x06,
- 0x02,0x7e,0x02,0x7e,0x02,
- 0x63,0x55,0x49,0x41,0x63,
- 0x38,0x44,0x44,0x3c,0x04,
- 0x40,0x7e,0x20,0x1e,0x20,
- 0x06,0x02,0x7e,0x02,0x02,
- 0x99,0xa5,0xe7,0xa5,0x99,
- 0x1c,0x2a,0x49,0x2a,0x1c,
- 0x4c,0x72,0x01,0x72,0x4c,
- 0x30,0x4a,0x4d,0x4d,0x30,
- 0x30,0x48,0x78,0x48,0x30,
- 0xbc,0x62,0x5a,0x46,0x3d,
- 0x3e,0x49,0x49,0x49,0x00,
- 0x7e,0x01,0x01,0x01,0x7e,
- 0x2a,0x2a,0x2a,0x2a,0x2a,
- 0x44,0x44,0x5f,0x44,0x44,
- 0x40,0x51,0x4a,0x44,0x40,
- 0x40,0x44,0x4a,0x51,0x40,
- 0x00,0x00,0xff,0x01,0x03,
- 0xe0,0x80,0xff,0x00,0x00,
- 0x08,0x08,0x6b,0x6b,0x08,
- 0x36,0x12,0x36,0x24,0x36,
- 0x06,0x0f,0x09,0x0f,0x06,
- 0x00,0x01,0x02,0x01,0x40,
- 0x00,0x00,0x10,0x10,0x00,
- 0x30,0x40,0xff,0x01,0x01,
- 0x00,0x1f,0x01,0x01,0x1e,
- 0x00,0x19,0x1d,0x17,0x12,
- 0x00,0x3c,0x3c,0x3c,0x3c
-};
-
-#define ST7920_CS() {cs.set(1);wait_us(10);}
-#define ST7920_NCS() {cs.set(0);wait_us(10);}
-#define ST7920_WRITE_BYTE(a) {this->spi->write((a)&0xf0);this->spi->write((a)<<4);wait_us(10);}
-#define ST7920_WRITE_BYTES(p,l) {uint8_t i;for(i=0;i<l;i++){this->spi->write(*p&0xf0);this->spi->write(*p<<4);p++;} wait_us(10); }
-#define ST7920_SET_CMD() {this->spi->write(0xf8);wait_us(10);}
-#define ST7920_SET_DAT() {this->spi->write(0xfa);wait_us(10);}
-#define PAGE_HEIGHT 32 //512 byte framebuffer
-#define WIDTH 128
-#define HEIGHT 64
-
-RrdGlcd::RrdGlcd(PinName mosi, PinName sclk, Pin cs) {
- this->spi= new mbed::SPI(mosi, NC, sclk);
- //chip select
- this->cs= cs;
- this->cs.set(0);
- inited= false;
- dirty= false;
-}
-
-RrdGlcd::~RrdGlcd() {
- delete this->spi;
-}
-
-void RrdGlcd::setFrequency(int freq) {
- this->spi->frequency(freq);
-}
-
-void RrdGlcd::initDisplay() {
- ST7920_CS();
- clearScreen(); // clear framebuffer
- wait_ms(90); //initial delay for boot up
- ST7920_SET_CMD();
- ST7920_WRITE_BYTE(0x08); //display off, cursor+blink off
- ST7920_WRITE_BYTE(0x01); //clear CGRAM ram
- wait_ms(10); //delay for cgram clear
- ST7920_WRITE_BYTE(0x3E); //extended mode + gdram active
- for(int y=0;y<HEIGHT/2;y++) //clear GDRAM
- {
- ST7920_WRITE_BYTE(0x80|y); //set y
- ST7920_WRITE_BYTE(0x80); //set x = 0
- ST7920_SET_DAT();
- for(int i=0;i<2*WIDTH/8;i++) //2x width clears both segments
- ST7920_WRITE_BYTE(0);
- ST7920_SET_CMD();
- }
- ST7920_WRITE_BYTE(0x0C); //display on, cursor+blink off
- ST7920_NCS();
- inited= true;
-}
-
-void RrdGlcd::clearScreen() {
- memset(this->fb, 0, sizeof(fb));
- dirty= true;
-}
-
-// render into local screenbuffer
-void RrdGlcd::displayString(int row, int col, const char *ptr, int length) {
- for (int i = 0; i < length; ++i) {
- displayChar(row, col, ptr[i]);
- col+=1;
- }
- dirty= true;
-}
-
-void RrdGlcd::renderChar(uint8_t *fb, char c, int ox, int oy) {
- // using the specific font data where y is in consecutive bytes and x is each bit position lsbit->msbit
- int i= c*5;
- for(int y=0;y<8;y++) {
- for(int x=0;x<5;x++) {
- int b= font5x7[i+x];
- if((b & (1<<(y))) != 0){
- fb[(y+oy)*16 + (x+ox)/8] |= (1<<(7-(x+ox)%8));
- }else{
- fb[(y+oy)*16 + (x+ox)/8] &= ~(1<<(7-(x+ox)%8));
- }
- }
- }
-}
-
-void RrdGlcd::displayChar(int row, int col, char c) {
- // convert row/column into y and x pixel positions based on font size
- renderChar(this->fb, c, col*6, row*8);
-}
-
-void RrdGlcd::renderGlyph(int xp, int yp, const uint8_t *g, int pixelWidth, int pixelHeight) {
- for(int y=0;y<pixelHeight;y++) {
- int m= 0x80;
- int b= *g++;
- for(int x=0;x<pixelWidth;x++) {
- if((b & m) != 0){
- fb[(y+yp)*16 + (x+xp)/8] |= (1<<(7-(x+xp)%8));
- }else{
- fb[(y+yp)*16 + (x+xp)/8] &= ~(1<<(7-(x+xp)%8));
- }
- m= m>>1;
- if(m == 0){
- m= 0x80;
- b= *g++;
- }
- }
- }
-}
-
-// copy frame buffer to graphic buffer on display
-void RrdGlcd::fillGDRAM(const uint8_t *bitmap) {
- unsigned char i, y;
- for ( i = 0 ; i < 2 ; i++ ) {
- ST7920_CS();
- for ( y = 0 ; y < PAGE_HEIGHT ; y++ ) {
- ST7920_SET_CMD();
- ST7920_WRITE_BYTE(0x80 | y);
- if ( i == 0 ) {
- ST7920_WRITE_BYTE(0x80);
- } else {
- ST7920_WRITE_BYTE(0x80 | 0x08);
- }
- ST7920_SET_DAT();
- ST7920_WRITE_BYTES(bitmap, WIDTH/8);
- }
- ST7920_NCS();
- }
-}
-
-void RrdGlcd::refresh() {
- if(!inited || !dirty) return;
- fillGDRAM(this->fb);
- dirty= false;
-}
+#include "RrdGlcd.h"
+
+static const uint8_t font5x8[] = {
+ // 5x8 font each byte is consecutive x bits left aligned then each subsequent byte is Y 8 bytes per character
+ // TODO probably only need someof these characters not all 256
+ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x70,0xF8,0xA8,0xF8,0xD8,0x88,0x70,0x00, // 0x00, 0x01
+ 0x70,0xF8,0xA8,0xF8,0x88,0xD8,0x70,0x00, 0x00,0x50,0xF8,0xF8,0xF8,0x70,0x20,0x00, // 0x02, 0x03
+ 0x00,0x20,0x70,0xF8,0xF8,0x70,0x20,0x00, 0x70,0x50,0xF8,0xA8,0xF8,0x20,0x70,0x00, // 0x04, 0x05
+ 0x20,0x70,0xF8,0xF8,0xF8,0x20,0x70,0x00, 0x00,0x00,0x20,0x70,0x70,0x20,0x00,0x00, // 0x06, 0x07
+ 0xF8,0xF8,0xD8,0x88,0x88,0xD8,0xF8,0xF8, 0x00,0x00,0x20,0x50,0x50,0x20,0x00,0x00, // 0x08, 0x09
+ 0xF8,0xF8,0xD8,0xA8,0xA8,0xD8,0xF8,0xF8, 0x00,0x38,0x18,0x68,0xA0,0xA0,0x40,0x00, // 0x0A, 0x0B
+ 0x70,0x88,0x88,0x70,0x20,0xF8,0x20,0x00, 0x78,0x48,0x78,0x40,0x40,0x40,0xC0,0x00, // 0x0C, 0x0D
+ 0x78,0x48,0x78,0x48,0x48,0x58,0xC0,0x00, 0x20,0xA8,0x70,0xD8,0xD8,0x70,0xA8,0x20, // 0x0E, 0x0F
+ 0x80,0xC0,0xF0,0xF8,0xF0,0xC0,0x80,0x00, 0x08,0x18,0x78,0xF8,0x78,0x18,0x08,0x00, // 0x10, 0x11
+ 0x20,0x70,0xA8,0x20,0xA8,0x70,0x20,0x00, 0xD8,0xD8,0xD8,0xD8,0xD8,0x00,0xD8,0x00, // 0x12, 0x13
+ 0x78,0xA8,0xA8,0x68,0x28,0x28,0x28,0x00, 0x30,0x48,0x50,0x28,0x10,0x48,0x48,0x30, // 0x14, 0x15
+ 0x00,0x00,0x00,0x00,0x00,0xF8,0xF8,0x00, 0x20,0x70,0xA8,0x20,0xA8,0x70,0x20,0xF8, // 0x16, 0x17
+ 0x00,0x20,0x70,0xA8,0x20,0x20,0x20,0x00, 0x00,0x20,0x20,0x20,0xA8,0x70,0x20,0x00, // 0x18, 0x19
+ 0x00,0x20,0x10,0xF8,0x10,0x20,0x00,0x00, 0x00,0x20,0x40,0xF8,0x40,0x20,0x00,0x00, // 0x1A, 0x1B
+ 0x00,0x80,0x80,0x80,0xF8,0x00,0x00,0x00, 0x00,0x50,0xF8,0xF8,0x50,0x00,0x00,0x00, // 0x1C, 0x1D
+ 0x00,0x20,0x20,0x70,0xF8,0xF8,0x00,0x00, 0x00,0xF8,0xF8,0x70,0x20,0x20,0x00,0x00, // 0x1E, 0x1F
+ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x20,0x20,0x20,0x20,0x20,0x00,0x20,0x00, // 0x20, 0x21
+ 0x50,0x50,0x50,0x00,0x00,0x00,0x00,0x00, 0x50,0x50,0xF8,0x50,0xF8,0x50,0x50,0x00, // 0x22, 0x23
+ 0x20,0x78,0xA0,0x70,0x28,0xF0,0x20,0x00, 0xC0,0xC8,0x10,0x20,0x40,0x98,0x18,0x00, // 0x24, 0x25
+ 0x40,0xA0,0xA0,0x40,0xA8,0x90,0x68,0x00, 0x30,0x30,0x20,0x40,0x00,0x00,0x00,0x00, // 0x26, 0x27
+ 0x10,0x20,0x40,0x40,0x40,0x20,0x10,0x00, 0x40,0x20,0x10,0x10,0x10,0x20,0x40,0x00, // 0x28, 0x29
+ 0x20,0xA8,0x70,0xF8,0x70,0xA8,0x20,0x00, 0x00,0x20,0x20,0xF8,0x20,0x20,0x00,0x00, // 0x2A, 0x2B
+ 0x00,0x00,0x00,0x00,0x30,0x30,0x20,0x40, 0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00, // 0x2C, 0x2D
+ 0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00, 0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00, // 0x2E, 0x2F
+ 0x70,0x88,0x98,0xA8,0xC8,0x88,0x70,0x00, 0x20,0x60,0x20,0x20,0x20,0x20,0x70,0x00, // 0x30, 0x31
+ 0x70,0x88,0x08,0x70,0x80,0x80,0xF8,0x00, 0xF8,0x08,0x10,0x30,0x08,0x88,0x70,0x00, // 0x32, 0x33
+ 0x10,0x30,0x50,0x90,0xF8,0x10,0x10,0x00, 0xF8,0x80,0xF0,0x08,0x08,0x88,0x70,0x00, // 0x34, 0x35
+ 0x38,0x40,0x80,0xF0,0x88,0x88,0x70,0x00, 0xF8,0x08,0x08,0x10,0x20,0x40,0x80,0x00, // 0x36, 0x37
+ 0x70,0x88,0x88,0x70,0x88,0x88,0x70,0x00, 0x70,0x88,0x88,0x78,0x08,0x10,0xE0,0x00, // 0x38, 0x39
+ 0x00,0x00,0x20,0x00,0x20,0x00,0x00,0x00, 0x00,0x00,0x20,0x00,0x20,0x20,0x40,0x00, // 0x3A, 0x3B
+ 0x08,0x10,0x20,0x40,0x20,0x10,0x08,0x00, 0x00,0x00,0xF8,0x00,0xF8,0x00,0x00,0x00, // 0x3C, 0x3D
+ 0x40,0x20,0x10,0x08,0x10,0x20,0x40,0x00, 0x70,0x88,0x08,0x30,0x20,0x00,0x20,0x00, // 0x3E, 0x3F
+ 0x70,0x88,0xA8,0xB8,0xB0,0x80,0x78,0x00, 0x20,0x50,0x88,0x88,0xF8,0x88,0x88,0x00, // 0x40, 0x41
+ 0xF0,0x88,0x88,0xF0,0x88,0x88,0xF0,0x00, 0x70,0x88,0x80,0x80,0x80,0x88,0x70,0x00, // 0x42, 0x43
+ 0xF0,0x88,0x88,0x88,0x88,0x88,0xF0,0x00, 0xF8,0x80,0x80,0xF0,0x80,0x80,0xF8,0x00, // 0x44, 0x45
+ 0xF8,0x80,0x80,0xF0,0x80,0x80,0x80,0x00, 0x78,0x88,0x80,0x80,0x98,0x88,0x78,0x00, // 0x46, 0x47
+ 0x88,0x88,0x88,0xF8,0x88,0x88,0x88,0x00, 0x70,0x20,0x20,0x20,0x20,0x20,0x70,0x00, // 0x48, 0x49
+ 0x38,0x10,0x10,0x10,0x10,0x90,0x60,0x00, 0x88,0x90,0xA0,0xC0,0xA0,0x90,0x88,0x00, // 0x4A, 0x4B
+ 0x80,0x80,0x80,0x80,0x80,0x80,0xF8,0x00, 0x88,0xD8,0xA8,0xA8,0xA8,0x88,0x88,0x00, // 0x4C, 0x4D
+ 0x88,0x88,0xC8,0xA8,0x98,0x88,0x88,0x00, 0x70,0x88,0x88,0x88,0x88,0x88,0x70,0x00, // 0x4E, 0x4F
+ 0xF0,0x88,0x88,0xF0,0x80,0x80,0x80,0x00, 0x70,0x88,0x88,0x88,0xA8,0x90,0x68,0x00, // 0x50, 0x51
+ 0xF0,0x88,0x88,0xF0,0xA0,0x90,0x88,0x00, 0x70,0x88,0x80,0x70,0x08,0x88,0x70,0x00, // 0x52, 0x53
+ 0xF8,0xA8,0x20,0x20,0x20,0x20,0x20,0x00, 0x88,0x88,0x88,0x88,0x88,0x88,0x70,0x00, // 0x54, 0x55
+ 0x88,0x88,0x88,0x88,0x88,0x50,0x20,0x00, 0x88,0x88,0x88,0xA8,0xA8,0xA8,0x50,0x00, // 0x56, 0x57
+ 0x88,0x88,0x50,0x20,0x50,0x88,0x88,0x00, 0x88,0x88,0x50,0x20,0x20,0x20,0x20,0x00, // 0x58, 0x59
+ 0xF8,0x08,0x10,0x70,0x40,0x80,0xF8,0x00, 0x78,0x40,0x40,0x40,0x40,0x40,0x78,0x00, // 0x5A, 0x5B
+ 0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00, 0x78,0x08,0x08,0x08,0x08,0x08,0x78,0x00, // 0x5C, 0x5D
+ 0x20,0x50,0x88,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0xF8,0x00, // 0x5E, 0x5F
+ 0x60,0x60,0x20,0x10,0x00,0x00,0x00,0x00, 0x00,0x00,0x60,0x10,0x70,0x90,0x78,0x00, // 0x60, 0x61
+ 0x80,0x80,0xB0,0xC8,0x88,0xC8,0xB0,0x00, 0x00,0x00,0x70,0x88,0x80,0x88,0x70,0x00, // 0x62, 0x63
+ 0x08,0x08,0x68,0x98,0x88,0x98,0x68,0x00, 0x00,0x00,0x70,0x88,0xF8,0x80,0x70,0x00, // 0x64, 0x65
+ 0x10,0x28,0x20,0x70,0x20,0x20,0x20,0x00, 0x00,0x00,0x70,0x98,0x98,0x68,0x08,0x70, // 0x66, 0x67
+ 0x80,0x80,0xB0,0xC8,0x88,0x88,0x88,0x00, 0x20,0x00,0x60,0x20,0x20,0x20,0x70,0x00, // 0x68, 0x69
+ 0x10,0x00,0x10,0x10,0x10,0x90,0x60,0x00, 0x80,0x80,0x90,0xA0,0xC0,0xA0,0x90,0x00, // 0x6A, 0x6B
+ 0x60,0x20,0x20,0x20,0x20,0x20,0x70,0x00, 0x00,0x00,0xD0,0xA8,0xA8,0xA8,0xA8,0x00, // 0x6C, 0x6D
+ 0x00,0x00,0xB0,0xC8,0x88,0x88,0x88,0x00, 0x00,0x00,0x70,0x88,0x88,0x88,0x70,0x00, // 0x6E, 0x6F
+ 0x00,0x00,0xB0,0xC8,0xC8,0xB0,0x80,0x80, 0x00,0x00,0x68,0x98,0x98,0x68,0x08,0x08, // 0x70, 0x71
+ 0x00,0x00,0xB0,0xC8,0x80,0x80,0x80,0x00, 0x00,0x00,0x78,0x80,0x70,0x08,0xF0,0x00, // 0x72, 0x73
+ 0x20,0x20,0xF8,0x20,0x20,0x28,0x10,0x00, 0x00,0x00,0x88,0x88,0x88,0x98,0x68,0x00, // 0x74, 0x75
+ 0x00,0x00,0x88,0x88,0x88,0x50,0x20,0x00, 0x00,0x00,0x88,0x88,0xA8,0xA8,0x50,0x00, // 0x76, 0x77
+ 0x00,0x00,0x88,0x50,0x20,0x50,0x88,0x00, 0x00,0x00,0x88,0x88,0x78,0x08,0x88,0x70, // 0x78, 0x79
+ 0x00,0x00,0xF8,0x10,0x20,0x40,0xF8,0x00, 0x10,0x20,0x20,0x40,0x20,0x20,0x10,0x00, // 0x7A, 0x7B
+ 0x20,0x20,0x20,0x00,0x20,0x20,0x20,0x00, 0x40,0x20,0x20,0x10,0x20,0x20,0x40,0x00, // 0x7C, 0x7D
+ 0x80,0xC0,0xF0,0xF8,0xF0,0xC0,0x80,0x00, 0x20,0x70,0xD8,0x88,0x88,0xF8,0x00,0x00, // 0x7E, 0x7F // 7e ~ = 0x40,0xA8,0x10,0x00,0x00,0x00,0x00,0x00
+ 0x70,0x88,0x80,0x80,0x88,0x70,0x10,0x60, 0x00,0x88,0x00,0x88,0x88,0x98,0x68,0x00, // 0x80, 0x81
+ 0x18,0x00,0x70,0x88,0xF8,0x80,0x78,0x00, 0xF8,0x00,0x60,0x10,0x70,0x90,0x78,0x00, // 0x82, 0x83
+ 0x88,0x00,0x60,0x10,0x70,0x90,0x78,0x00, 0xC0,0x00,0x60,0x10,0x70,0x90,0x78,0x00, // 0x84, 0x85
+ 0x30,0x00,0x60,0x10,0x70,0x90,0x78,0x00, 0x00,0x78,0xC0,0xC0,0x78,0x10,0x30,0x00, // 0x86, 0x87
+ 0xF8,0x00,0x70,0x88,0xF8,0x80,0x78,0x00, 0x88,0x00,0x70,0x88,0xF8,0x80,0x78,0x00, // 0x88, 0x89
+ 0xC0,0x00,0x70,0x88,0xF8,0x80,0x78,0x00, 0x28,0x00,0x30,0x10,0x10,0x10,0x38,0x00, // 0x8A, 0x8B
+ 0x30,0x48,0x30,0x10,0x10,0x10,0x38,0x00, 0x60,0x00,0x30,0x10,0x10,0x10,0x38,0x00, // 0x8C, 0x8D
+ 0x50,0x00,0x20,0x50,0x88,0xF8,0x88,0x88, 0x20,0x00,0x20,0x50,0x88,0xF8,0x88,0x88, // 0x8E, 0x8F
+ 0x30,0x00,0xF0,0x80,0xE0,0x80,0xF0,0x00, 0x00,0x00,0x78,0x10,0x78,0x90,0x78,0x00, // 0x90, 0x91
+ 0x38,0x50,0x90,0xF8,0x90,0x90,0x98,0x00, 0x70,0x88,0x00,0x70,0x88,0x88,0x70,0x00, // 0x92, 0x93
+ 0x00,0x88,0x00,0x70,0x88,0x88,0x70,0x00, 0x00,0xC0,0x00,0x70,0x88,0x88,0x70,0x00, // 0x94, 0x95
+ 0x70,0x88,0x00,0x88,0x88,0x98,0x68,0x00, 0x00,0xC0,0x00,0x88,0x88,0x98,0x68,0x00, // 0x96, 0x97
+ 0x48,0x00,0x48,0x48,0x48,0x38,0x08,0x70, 0x88,0x00,0x70,0x88,0x88,0x88,0x70,0x00, // 0x98, 0x99
+ 0x88,0x00,0x88,0x88,0x88,0x88,0x70,0x00, 0x20,0x20,0xF8,0xA0,0xA0,0xF8,0x20,0x20, // 0x9A, 0x9B
+ 0x30,0x58,0x48,0xE0,0x40,0x48,0xF8,0x00, 0xD8,0xD8,0x70,0xF8,0x20,0xF8,0x20,0x20, // 0x9C, 0x9D
+ 0xE0,0x90,0x90,0xE0,0x90,0xB8,0x90,0x90, 0x18,0x28,0x20,0x70,0x20,0x20,0xA0,0xC0, // 0x9E, 0x9F
+ 0x18,0x00,0x60,0x10,0x70,0x90,0x78,0x00, 0x18,0x00,0x30,0x10,0x10,0x10,0x38,0x00, // 0xA0, 0xA1
+ 0x00,0x18,0x00,0x70,0x88,0x88,0x70,0x00, 0x00,0x18,0x00,0x88,0x88,0x98,0x68,0x00, // 0xA2, 0xA3
+ 0x00,0x78,0x00,0x70,0x48,0x48,0x48,0x00, 0xF8,0x00,0xC8,0xE8,0xB8,0x98,0x88,0x00, // 0xA4, 0xA5
+ 0x70,0x90,0x90,0x78,0x00,0xF8,0x00,0x00, 0x70,0x88,0x88,0x70,0x00,0xF8,0x00,0x00, // 0xA6, 0xA7
+ 0x20,0x00,0x20,0x60,0x80,0x88,0x70,0x00, 0x00,0x00,0x00,0xF8,0x80,0x80,0x00,0x00, // 0xA8, 0xA9
+ 0x00,0x00,0x00,0xF8,0x08,0x08,0x00,0x00, 0x80,0x88,0x90,0xB8,0x48,0x98,0x20,0x38, // 0xAA, 0xAB
+ 0x80,0x88,0x90,0xA8,0x58,0xB8,0x08,0x08, 0x20,0x20,0x00,0x20,0x20,0x20,0x20,0x00, // 0xAC, 0xAD
+ 0x00,0x28,0x50,0xA0,0x50,0x28,0x00,0x00, 0x00,0xA0,0x50,0x28,0x50,0xA0,0x00,0x00, // 0xAE, 0xAF
+ 0x20,0x88,0x20,0x88,0x20,0x88,0x20,0x88, 0x50,0xA8,0x50,0xA8,0x50,0xA8,0x50,0xA8, // 0xB0, 0xB1
+ 0xA8,0x50,0xA8,0x50,0xA8,0x50,0xA8,0x50, 0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10, // 0xB2, 0xB3
+ 0x10,0x10,0x10,0x10,0xF0,0x10,0x10,0x10, 0x10,0x10,0xF0,0x10,0xF0,0x10,0x10,0x10, // 0xB4, 0xB5
+ 0x28,0x28,0x28,0x28,0xE8,0x28,0x28,0x28, 0x00,0x00,0x00,0x00,0xF8,0x28,0x28,0x28, // 0xB6, 0xB7
+ 0x00,0x00,0xF0,0x10,0xF0,0x10,0x10,0x10, 0x28,0x28,0xE8,0x08,0xE8,0x28,0x28,0x28, // 0xB8, 0xB9
+ 0x28,0x28,0x28,0x28,0x28,0x28,0x28,0x28, 0x00,0x00,0xF8,0x08,0xE8,0x28,0x28,0x28, // 0xBA, 0xBB
+ 0x28,0x28,0xE8,0x08,0xF8,0x00,0x00,0x00, 0x28,0x28,0x28,0x28,0xF8,0x00,0x00,0x00, // 0xBC, 0xBD
+ 0x10,0x10,0xF0,0x10,0xF0,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0xF0,0x10,0x10,0x10, // 0xBE, 0xBF
+ 0x10,0x10,0x10,0x10,0x18,0x00,0x00,0x00, 0x10,0x10,0x10,0x10,0xF8,0x00,0x00,0x00, // 0xC0, 0xC1
+ 0x00,0x00,0x00,0x00,0xF8,0x10,0x10,0x10, 0x10,0x10,0x10,0x10,0x18,0x10,0x10,0x10, // 0xC2, 0xC3
+ 0x00,0x00,0x00,0x00,0xF8,0x00,0x00,0x00, 0x10,0x10,0x10,0x10,0xF8,0x10,0x10,0x10, // 0xC4, 0xC5
+ 0x10,0x10,0x18,0x10,0x18,0x10,0x10,0x10, 0x28,0x28,0x28,0x28,0x28,0x28,0x28,0x28, // 0xC6, 0xC7
+ 0x28,0x28,0x28,0x20,0x38,0x00,0x00,0x00, 0x00,0x00,0x38,0x20,0x28,0x28,0x28,0x28, // 0xC8, 0xC9
+ 0x28,0x28,0xE8,0x00,0xF8,0x00,0x00,0x00, 0x00,0x00,0xF8,0x00,0xE8,0x28,0x28,0x28, // 0xCA, 0xCB
+ 0x28,0x28,0x28,0x20,0x28,0x28,0x28,0x28, 0x00,0x00,0xF8,0x00,0xF8,0x00,0x00,0x00, // 0xCC, 0xCD
+ 0x28,0x28,0xE8,0x00,0xE8,0x28,0x28,0x28, 0x10,0x10,0xF8,0x00,0xF8,0x00,0x00,0x00, // 0xCE, 0xCF
+ 0x28,0x28,0x28,0x28,0xF8,0x00,0x00,0x00, 0x00,0x00,0xF8,0x00,0xF8,0x10,0x10,0x10, // 0xD0, 0xD1
+ 0x00,0x00,0x00,0x00,0xF8,0x28,0x28,0x28, 0x28,0x28,0x28,0x28,0x38,0x00,0x00,0x00, // 0xD2, 0xD3
+ 0x10,0x10,0x18,0x10,0x18,0x00,0x00,0x00, 0x00,0x00,0x18,0x10,0x18,0x10,0x10,0x10, // 0xD4, 0xD5
+ 0x00,0x00,0x00,0x00,0x38,0x28,0x28,0x28, 0x28,0x28,0x28,0x28,0xF8,0x28,0x28,0x28, // 0xD6, 0xD7
+ 0x10,0x10,0xF8,0x10,0xF8,0x10,0x10,0x10, 0x10,0x10,0x10,0x10,0xF0,0x00,0x00,0x00, // 0xD8, 0xD9
+ 0x00,0x00,0x00,0x00,0x18,0x10,0x10,0x10, 0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0xF8,0xF8, // 0xDA, 0xDB
+ 0x00,0x00,0x00,0x00,0xF8,0xF8,0xF8,0xF8, 0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0, // 0xDC, 0xDD
+ 0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18, 0xF8,0xF8,0xF8,0xF8,0x00,0x00,0x00,0x00, // 0xDE, 0xDF
+ 0x00,0x00,0x68,0x90,0x90,0x90,0x68,0x00, 0x00,0x70,0x98,0xF0,0x98,0xF0,0x80,0x00, // 0xE0, 0xE1
+ 0x00,0xF8,0x98,0x80,0x80,0x80,0x80,0x00, 0x00,0xF8,0x50,0x50,0x50,0x50,0x50,0x00, // 0xE2, 0xE3
+ 0xF8,0x88,0x40,0x20,0x40,0x88,0xF8,0x00, 0x00,0x00,0x78,0x90,0x90,0x90,0x60,0x00, // 0xE4, 0xE5
+ 0x00,0x50,0x50,0x50,0x50,0x68,0xC0,0x00, 0x00,0xF8,0xA0,0x20,0x20,0x20,0x20,0x00, // 0xE6, 0xE7
+ 0xF8,0x20,0x70,0x88,0x88,0x70,0x20,0xF8, 0x20,0x50,0x88,0xF8,0x88,0x50,0x20,0x00, // 0xE8, 0xE9
+ 0x20,0x50,0x88,0x88,0x50,0x50,0xD8,0x00, 0x30,0x40,0x30,0x70,0x88,0x88,0x70,0x00, // 0xEA, 0xEB
+ 0x00,0x00,0x00,0x70,0xA8,0xA8,0x70,0x00, 0x08,0x70,0x98,0xA8,0xA8,0xC8,0x70,0x80, // 0xEC, 0xED
+ 0x70,0x80,0x80,0xF0,0x80,0x80,0x70,0x00, 0x70,0x88,0x88,0x88,0x88,0x88,0x88,0x00, // 0xEE, 0xEF
+ 0x00,0xF8,0x00,0xF8,0x00,0xF8,0x00,0x00, 0x20,0x20,0xF8,0x20,0x20,0x00,0xF8,0x00, // 0xF0, 0xF1
+ 0x40,0x20,0x10,0x20,0x40,0x00,0xF8,0x00, 0x10,0x20,0x40,0x20,0x10,0x00,0xF8,0x00, // 0xF2, 0xF3
+ 0x38,0x28,0x20,0x20,0x20,0x20,0x20,0x20, 0x20,0x20,0x20,0x20,0x20,0xA0,0xA0,0xE0, // 0xF4, 0xF5
+ 0x30,0x30,0x00,0xF8,0x00,0x30,0x30,0x00, 0x00,0xE8,0xB8,0x00,0xE8,0xB8,0x00,0x00, // 0xF6, 0xF7
+ 0x70,0xD8,0xD8,0x70,0x00,0x00,0x00,0x00, 0x50,0x20,0x00,0x00,0x00,0x00,0x08,0x00, // 0xF8, 0xF9
+ 0x00,0x00,0x00,0x00,0x30,0x00,0x00,0x00, 0x38,0x20,0x20,0x20,0xA0,0xA0,0x60,0x20, // 0xFA, 0xFB
+ 0x70,0x48,0x48,0x48,0x48,0x00,0x00,0x00, 0x70,0x18,0x30,0x60,0x78,0x00,0x00,0x00, // 0xFC, 0xFD
+ 0x00,0x00,0x78,0x78,0x78,0x78,0x00,0x00
+};
+
+#define ST7920_CS() {cs.set(1);wait_us(10);}
+#define ST7920_NCS() {cs.set(0);wait_us(10);}
+#define ST7920_WRITE_BYTE(a) {this->spi->write((a)&0xf0);this->spi->write((a)<<4);wait_us(10);}
+#define ST7920_WRITE_BYTES(p,l) {uint8_t i;for(i=0;i<l;i++){this->spi->write(*p&0xf0);this->spi->write(*p<<4);p++;} wait_us(10); }
+#define ST7920_SET_CMD() {this->spi->write(0xf8);wait_us(10);}
+#define ST7920_SET_DAT() {this->spi->write(0xfa);wait_us(10);}
+#define PAGE_HEIGHT 32 //512 byte framebuffer
+#define WIDTH 128
+#define HEIGHT 64
+
+RrdGlcd::RrdGlcd(PinName mosi, PinName sclk, Pin cs) {
+ this->spi= new mbed::SPI(mosi, NC, sclk);
+ //chip select
+ this->cs= cs;
+ this->cs.set(0);
+ inited= false;
+ dirty= false;
+}
+
+RrdGlcd::~RrdGlcd() {
+ delete this->spi;
+}
+
+void RrdGlcd::setFrequency(int freq) {
+ this->spi->frequency(freq);
+}
+
+void RrdGlcd::initDisplay() {
+ ST7920_CS();
+ clearScreen(); // clear framebuffer
+ wait_ms(90); //initial delay for boot up
+ ST7920_SET_CMD();
+ ST7920_WRITE_BYTE(0x08); //display off, cursor+blink off
+ ST7920_WRITE_BYTE(0x01); //clear CGRAM ram
+ wait_ms(10); //delay for cgram clear
+ ST7920_WRITE_BYTE(0x3E); //extended mode + gdram active
+ for(int y=0;y<HEIGHT/2;y++) //clear GDRAM
+ {
+ ST7920_WRITE_BYTE(0x80|y); //set y
+ ST7920_WRITE_BYTE(0x80); //set x = 0
+ ST7920_SET_DAT();
+ for(int i=0;i<2*WIDTH/8;i++) //2x width clears both segments
+ ST7920_WRITE_BYTE(0);
+ ST7920_SET_CMD();
+ }
+ ST7920_WRITE_BYTE(0x0C); //display on, cursor+blink off
+ ST7920_NCS();
+ inited= true;
+}
+
+void RrdGlcd::clearScreen() {
+ memset(this->fb, 0, sizeof(fb));
+ dirty= true;
+}
+
+// render into local screenbuffer
+void RrdGlcd::displayString(int row, int col, const char *ptr, int length) {
+ for (int i = 0; i < length; ++i) {
+ displayChar(row, col, ptr[i]);
+ col+=1;
+ }
+ dirty= true;
+}
+
+void RrdGlcd::renderChar(uint8_t *fb, char c, int ox, int oy) {
+ // using the specific font data where x is in one byte and y is in consecutive bytes
+ // the x bits are left aligned and right padded
+ int i= c*8; // character offset in font array
+ int o= ox%8; // where in fb byte does it go
+ int a= oy*16 + ox/8; // start address in frame buffer
+ int mask= ~0xF8 >> o; // mask off top bits
+ int mask2= ~0xF8 << (8-o); // mask off bottom bits
+ for(int y=0;y<8;y++) {
+ int b= font5x8[i+y]; // get font byte
+ fb[a] &= mask; // clear top bits for font
+ fb[a] |= (b>>o); // or in the fonts 1 bits
+ if(o >= 4) { // it spans two fb bytes
+ fb[a+1] &= mask2; // clear bottom bits for font
+ fb[a+1] |= (b<<(8-o)); // or in the fonts 1 bits
+ }
+ a+=16; // next line
+ }
+}
+
+void RrdGlcd::displayChar(int row, int col, char c) {
+ // convert row/column into y and x pixel positions based on font size
+ renderChar(this->fb, c, col*6, row*8);
+}
+
+void RrdGlcd::renderGlyph(int xp, int yp, const uint8_t *g, int pixelWidth, int pixelHeight) {
+ for(int y=0;y<pixelHeight;y++) {
+ int m= 0x80;
+ int b= *g++;
+ for(int x=0;x<pixelWidth;x++) {
+ if((b & m) != 0){
+ fb[(y+yp)*16 + (x+xp)/8] |= (1<<(7-(x+xp)%8));
+ }else{
+ fb[(y+yp)*16 + (x+xp)/8] &= ~(1<<(7-(x+xp)%8));
+ }
+ m= m>>1;
+ if(m == 0){
+ m= 0x80;
+ b= *g++;
+ }
+ }
+ }
+}
+
+// copy frame buffer to graphic buffer on display
+void RrdGlcd::fillGDRAM(const uint8_t *bitmap) {
+ unsigned char i, y;
+ for ( i = 0 ; i < 2 ; i++ ) {
+ ST7920_CS();
+ for ( y = 0 ; y < PAGE_HEIGHT ; y++ ) {
+ ST7920_SET_CMD();
+ ST7920_WRITE_BYTE(0x80 | y);
+ if ( i == 0 ) {
+ ST7920_WRITE_BYTE(0x80);
+ } else {
+ ST7920_WRITE_BYTE(0x80 | 0x08);
+ }
+ ST7920_SET_DAT();
+ ST7920_WRITE_BYTES(bitmap, WIDTH/8);
+ }
+ ST7920_NCS();
+ }
+}
+
+void RrdGlcd::refresh() {
+ if(!inited || !dirty) return;
+ fillGDRAM(this->fb);
+ dirty= false;
+}
HCoop / clinton / Smoothieware.git / commitdiff