Hiroshi Nakata / Mbed 2 deprecated WiFiTerminal

This program opens a socket and wait connection through Wi-Fi. When the socket is connected, print out received characters to LCD.

Dependencies:   TextLCD mbed

LcdScreen.h@2:f5754fb90f07, 2012-10-24 (annotated)

Committer:
nakata
Date:
Wed Oct 24 10:16:52 2012 +0000
Revision:
2:f5754fb90f07
Parent:
1:e87727c8979d 
Interface public version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nakata 0:ac3682c7c208 1 #include "TextLCD.h"
nakata 0:ac3682c7c208 2
nakata 0:ac3682c7c208 3 #define SCREEN_WIDTH 16
nakata 0:ac3682c7c208 4 #define SCREEN_HEIGHT 2
nakata 0:ac3682c7c208 5 #define CR 13
nakata 0:ac3682c7c208 6 #define LF 10
nakata 0:ac3682c7c208 7
nakata 0:ac3682c7c208 8 TextLCD lcd(p24, p26, p27, p28, p29, p30); // rs, e, d4-d7
nakata 0:ac3682c7c208 9
nakata 0:ac3682c7c208 10 class LcdScreen {
nakata 0:ac3682c7c208 11 protected:
nakata 0:ac3682c7c208 12 unsigned char cram[SCREEN_HEIGHT][SCREEN_WIDTH];
nakata 1:e87727c8979d 13 unsigned char lastWritten[SCREEN_HEIGHT][SCREEN_WIDTH];
nakata 1:e87727c8979d 14 int cursorX;
nakata 1:e87727c8979d 15 int cursorY;
nakata 0:ac3682c7c208 16 public:
nakata 0:ac3682c7c208 17 LcdScreen()
nakata 0:ac3682c7c208 18 {
nakata 1:e87727c8979d 19 cursorX = 0;
nakata 1:e87727c8979d 20 cursorY = 0;
nakata 0:ac3682c7c208 21
nakata 0:ac3682c7c208 22 int x, y;
nakata 0:ac3682c7c208 23 for ( y = 0; y < SCREEN_HEIGHT; y++ ) {
nakata 0:ac3682c7c208 24 for ( x = 0; x < SCREEN_WIDTH; x++ ) {
nakata 0:ac3682c7c208 25 cram[y][x] = ' ';
nakata 1:e87727c8979d 26 lastWritten[y][x] = ' ';
nakata 0:ac3682c7c208 27 }
nakata 0:ac3682c7c208 28 }
nakata 0:ac3682c7c208 29
nakata 1:e87727c8979d 30 lcd.cls();
nakata 0:ac3682c7c208 31 }
nakata 0:ac3682c7c208 32
nakata 0:ac3682c7c208 33 void syncScreen()
nakata 0:ac3682c7c208 34 {
nakata 1:e87727c8979d 35 int x, y, xLimit;
nakata 0:ac3682c7c208 36
nakata 0:ac3682c7c208 37 for ( y = 0; y < SCREEN_HEIGHT; y++ ) {
nakata 0:ac3682c7c208 38 for ( x = 0; x < SCREEN_WIDTH; x++ ) {
nakata 1:e87727c8979d 39 if ( cram[y][x] != lastWritten[y][x] )
nakata 1:e87727c8979d 40 break;
nakata 1:e87727c8979d 41 }
nakata 1:e87727c8979d 42 if ( x >= SCREEN_WIDTH ) {
nakata 1:e87727c8979d 43 continue;
nakata 1:e87727c8979d 44 }
nakata 1:e87727c8979d 45 for ( xLimit = SCREEN_WIDTH - 1; cram[y][xLimit] == lastWritten[y][xLimit]; xLimit-- )
nakata 1:e87727c8979d 46 ; // empty loop body
nakata 1:e87727c8979d 47 lcd.locate(x,y);
nakata 1:e87727c8979d 48 for ( ;x <= xLimit; x++ ) {
nakata 0:ac3682c7c208 49 lcd.putc(cram[y][x]);
nakata 0:ac3682c7c208 50 }
nakata 0:ac3682c7c208 51 }
nakata 1:e87727c8979d 52 for ( y = 0; y < SCREEN_HEIGHT; y++ ) {
nakata 1:e87727c8979d 53 memcpy(&(lastWritten[y][0]), &(cram[y][0]), SCREEN_WIDTH);
nakata 1:e87727c8979d 54 }
nakata 0:ac3682c7c208 55 }
nakata 0:ac3682c7c208 56
nakata 0:ac3682c7c208 57 void scroll()
nakata 0:ac3682c7c208 58 {
nakata 0:ac3682c7c208 59 int x;
nakata 0:ac3682c7c208 60 for ( x = 0; x < SCREEN_WIDTH; x++ ) {
nakata 0:ac3682c7c208 61 cram[0][x] = cram[1][x];
nakata 0:ac3682c7c208 62 cram[1][x] = ' ';
nakata 0:ac3682c7c208 63 }
nakata 0:ac3682c7c208 64 }
nakata 0:ac3682c7c208 65
nakata 0:ac3682c7c208 66 void print(const unsigned char *data)
nakata 0:ac3682c7c208 67 {
nakata 0:ac3682c7c208 68 const unsigned char *p;
nakata 0:ac3682c7c208 69 for ( p = data; *p != '\0'; p++ ) {
nakata 0:ac3682c7c208 70 if ( *p == CR ) {
nakata 1:e87727c8979d 71 cursorX = 0;
nakata 0:ac3682c7c208 72 } else if ( *p == LF ) {
nakata 1:e87727c8979d 73 cursorY++;
nakata 0:ac3682c7c208 74 } else if ( 0x20 <= *p && *p <= 0x7f ) {
nakata 1:e87727c8979d 75 if ( cursorX >= SCREEN_WIDTH ) {
nakata 1:e87727c8979d 76 cursorX = 0;
nakata 1:e87727c8979d 77 cursorY++;
nakata 0:ac3682c7c208 78 }
nakata 1:e87727c8979d 79 if ( cursorY >= SCREEN_HEIGHT ) {
nakata 0:ac3682c7c208 80 scroll();
nakata 1:e87727c8979d 81 cursorY = SCREEN_HEIGHT - 1;
nakata 0:ac3682c7c208 82 }
nakata 1:e87727c8979d 83 cram[cursorY][cursorX++] = *p;
nakata 0:ac3682c7c208 84 }
nakata 0:ac3682c7c208 85 }
nakata 1:e87727c8979d 86 if ( cursorX >= SCREEN_WIDTH ) {
nakata 1:e87727c8979d 87 cursorX = 0;
nakata 1:e87727c8979d 88 ++cursorY;
nakata 0:ac3682c7c208 89 }
nakata 0:ac3682c7c208 90 syncScreen();
nakata 0:ac3682c7c208 91 }
nakata 0:ac3682c7c208 92 };