Demo Team / Mbed 2 deprecated Stick_It_Demo

.

Dependencies:   BurstSPI EaEpaper mbed

Fork of epaper_mbed_130411_KL25Z by Peter Drescher

main.cpp@4:05cb9a1b60ca, 2015-09-22 (annotated)

Committer:
Jamestom999
Date:
Tue Sep 22 11:04:06 2015 +0000
Revision:
4:05cb9a1b60ca
Parent:
3:6ab30c065d39 
Stick It Demo

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dreschpe 0:057244fcbbb6 1 #include "mbed.h"
dreschpe 0:057244fcbbb6 2 #include "EaEpaper.h"
Jamestom999 4:05cb9a1b60ca 3 #include "Arial37x36.h"
dreschpe 0:057244fcbbb6 4 #include "graphics.h"
dreschpe 0:057244fcbbb6 5
Jamestom999 4:05cb9a1b60ca 6 #define epaper_width 264
Jamestom999 4:05cb9a1b60ca 7 #define epaper_hight 176
Jamestom999 4:05cb9a1b60ca 8 #define line_hight 40
Jamestom999 4:05cb9a1b60ca 9 #define text_field 240
Jamestom999 4:05cb9a1b60ca 10 #define ASCII_offset 32
Jamestom999 4:05cb9a1b60ca 11
Jamestom999 4:05cb9a1b60ca 12 int LineWrap(char* buff);
Jamestom999 4:05cb9a1b60ca 13 char* BluetoothRecive(void);
Jamestom999 4:05cb9a1b60ca 14
Jamestom999 4:05cb9a1b60ca 15 char line[4][40];
Jamestom999 4:05cb9a1b60ca 16 int indent[4];
Jamestom999 4:05cb9a1b60ca 17
Jamestom999 4:05cb9a1b60ca 18 EaEpaper epaper(p19, // PWR_CTRL
Jamestom999 4:05cb9a1b60ca 19 p20, // BORDER
Jamestom999 4:05cb9a1b60ca 20 p11, // DISCHARGE
Jamestom999 4:05cb9a1b60ca 21 p12, // RESET_DISP
Jamestom999 4:05cb9a1b60ca 22 p13, // BUSY
Jamestom999 4:05cb9a1b60ca 23 p8 , // SSEL
Jamestom999 4:05cb9a1b60ca 24 p26, // PWM
Jamestom999 4:05cb9a1b60ca 25 p5,p6,p7, // MOSI,MISO,SCLK
Jamestom999 4:05cb9a1b60ca 26 p28,p27); // SDA,SCL
Jamestom999 4:05cb9a1b60ca 27
Jamestom999 4:05cb9a1b60ca 28 DigitalOut Flash_CS(p25); //Flash Select
Jamestom999 4:05cb9a1b60ca 29 DigitalOut Screen_CS(p8 ); //Screen Select
Jamestom999 4:05cb9a1b60ca 30 DigitalOut led (p23); //On board LED
Jamestom999 4:05cb9a1b60ca 31
Jamestom999 4:05cb9a1b60ca 32 Serial Bluetooth(p9, p10); // tx, rx
Jamestom999 4:05cb9a1b60ca 33 Serial Terminal (USBTX, USBRX);// tx, rx
Jamestom999 4:05cb9a1b60ca 34
dreschpe 0:057244fcbbb6 35 int main() {
Jamestom999 4:05cb9a1b60ca 36 int n, lineNumber;
Jamestom999 4:05cb9a1b60ca 37 Flash_CS =1;
Jamestom999 4:05cb9a1b60ca 38 Screen_CS=0;
Jamestom999 4:05cb9a1b60ca 39 led =1;
Jamestom999 4:05cb9a1b60ca 40 Bluetooth.baud(115200);
Jamestom999 4:05cb9a1b60ca 41 Terminal .baud(115200);
Jamestom999 4:05cb9a1b60ca 42
Jamestom999 4:05cb9a1b60ca 43 epaper.cls(); //Display the logo
Jamestom999 4:05cb9a1b60ca 44 epaper.print_bm(bitmLogo,5,30);
Jamestom999 4:05cb9a1b60ca 45 epaper.write_disp();
Jamestom999 4:05cb9a1b60ca 46
Jamestom999 4:05cb9a1b60ca 47 while(1){
Jamestom999 4:05cb9a1b60ca 48 lineNumber=LineWrap(BluetoothRecive()); //Wait and recive a string. Word wrap the string so that it fits to the screen
Jamestom999 4:05cb9a1b60ca 49 epaper.cls(); //Clear screen buffer
Jamestom999 4:05cb9a1b60ca 50 epaper.set_font((unsigned char*) Arial37x36);//Set font
Jamestom999 4:05cb9a1b60ca 51 for(n=0;n<lineNumber;n++){
Jamestom999 4:05cb9a1b60ca 52 epaper.locate(indent[n], (epaper_hight-line_hight*(lineNumber-n*2))/2);
Jamestom999 4:05cb9a1b60ca 53 epaper.printf(line[n]); //Write to screen buffer
Jamestom999 4:05cb9a1b60ca 54 }
Jamestom999 4:05cb9a1b60ca 55 epaper.write_disp(); //Display screen buffer
Jamestom999 4:05cb9a1b60ca 56 }
Jamestom999 4:05cb9a1b60ca 57 }
dreschpe 0:057244fcbbb6 58
Jamestom999 4:05cb9a1b60ca 59 char* BluetoothRecive(void){
Jamestom999 4:05cb9a1b60ca 60 int n=0;
Jamestom999 4:05cb9a1b60ca 61 char buff[200];
Jamestom999 4:05cb9a1b60ca 62 while(1){
Jamestom999 4:05cb9a1b60ca 63 while(!Bluetooth.readable()){} //Waits for char
Jamestom999 4:05cb9a1b60ca 64 buff[n]=Bluetooth.getc(); //Saves char to array
Jamestom999 4:05cb9a1b60ca 65 if(buff[n]==0){ //Detects end of string
Jamestom999 4:05cb9a1b60ca 66 break;
Jamestom999 4:05cb9a1b60ca 67 }
Jamestom999 4:05cb9a1b60ca 68 n++;
Jamestom999 4:05cb9a1b60ca 69 }
Jamestom999 4:05cb9a1b60ca 70 return buff;
Jamestom999 4:05cb9a1b60ca 71 }
Jamestom999 4:05cb9a1b60ca 72
Jamestom999 4:05cb9a1b60ca 73 int LineWrap(char* buff){
Jamestom999 4:05cb9a1b60ca 74 int Old_Pix_Length, Pix_Length, Old_Char_Length, Char_Length, end_flag, lineNumber, words, wordCount, Offset;
Jamestom999 4:05cb9a1b60ca 75 end_flag=0; //used for an end of string case.
Jamestom999 4:05cb9a1b60ca 76 lineNumber=0;
Jamestom999 4:05cb9a1b60ca 77 Offset=0;
Jamestom999 4:05cb9a1b60ca 78
Jamestom999 4:05cb9a1b60ca 79 while(!end_flag && lineNumber<4){ //Loop for 4 lines or untill the end of string
dreschpe 0:057244fcbbb6 80
Jamestom999 4:05cb9a1b60ca 81 //===================================================Find the number of words that can fit on a line==================================================
Jamestom999 4:05cb9a1b60ca 82 words =0;
Jamestom999 4:05cb9a1b60ca 83 Pix_Length=0;
Jamestom999 4:05cb9a1b60ca 84 while(Pix_Length<text_field && !end_flag){ //check the size of strings with increasing word lengths. When the size is larger than the screen then stop
Jamestom999 4:05cb9a1b60ca 85 words++;
Jamestom999 4:05cb9a1b60ca 86 Old_Pix_Length=Pix_Length; //Save privious values of Pix and Char
Jamestom999 4:05cb9a1b60ca 87 Old_Char_Length=Char_Length;
Jamestom999 4:05cb9a1b60ca 88 Pix_Length =0;
Jamestom999 4:05cb9a1b60ca 89 wordCount =0;
Jamestom999 4:05cb9a1b60ca 90 Char_Length=0;
Jamestom999 4:05cb9a1b60ca 91 //----------------Find the length of a string with a number of words----------------
Jamestom999 4:05cb9a1b60ca 92 while(wordCount<words && !end_flag){
Jamestom999 4:05cb9a1b60ca 93 if(buff[Offset+Char_Length]==0){ //Handle with an end of string case
Jamestom999 4:05cb9a1b60ca 94 if(Pix_Length<text_field){ //Ignore the end of string case if the string is too big to fit on the screen.
Jamestom999 4:05cb9a1b60ca 95 Old_Pix_Length=Pix_Length; //Update the Pix and Char lengths
Jamestom999 4:05cb9a1b60ca 96 Old_Char_Length=Char_Length+1;
Jamestom999 4:05cb9a1b60ca 97 end_flag=1; //Set flag
Jamestom999 4:05cb9a1b60ca 98 }
Jamestom999 4:05cb9a1b60ca 99 }else{ //If its not the end of the string, add on the size of the current char and copy it to the "line" array
Jamestom999 4:05cb9a1b60ca 100 Pix_Length+=Arial37x36Size[buff[Offset+Char_Length]-ASCII_offset];
Jamestom999 4:05cb9a1b60ca 101 line[lineNumber][Char_Length]=buff[Offset+Char_Length];
Jamestom999 4:05cb9a1b60ca 102 }
Jamestom999 4:05cb9a1b60ca 103
Jamestom999 4:05cb9a1b60ca 104 if(buff[Offset+Char_Length]==' '){ //A SPACE indicates the end of a word
Jamestom999 4:05cb9a1b60ca 105 wordCount++;
Jamestom999 4:05cb9a1b60ca 106 }
Jamestom999 4:05cb9a1b60ca 107 Char_Length++;
Jamestom999 4:05cb9a1b60ca 108 }
Jamestom999 4:05cb9a1b60ca 109 Pix_Length-=Arial37x36Size[' '-ASCII_offset];//Remove the last SPACE from the string length
Jamestom999 4:05cb9a1b60ca 110 //----------------------------------------------------------------------------------
Jamestom999 4:05cb9a1b60ca 111 }
Jamestom999 4:05cb9a1b60ca 112 //====================================================================================================================================================
Jamestom999 4:05cb9a1b60ca 113
Jamestom999 4:05cb9a1b60ca 114 line[lineNumber][Old_Char_Length-1]='\0'; //Add a NULL char to the end of string
Jamestom999 4:05cb9a1b60ca 115 indent[lineNumber]=(epaper_width-Old_Pix_Length)/2; //Indent so that the string is in the middle of the screen
Jamestom999 4:05cb9a1b60ca 116
Jamestom999 4:05cb9a1b60ca 117 Offset+=Old_Char_Length; //Increment the offset so that the next line continues from the previous line
Jamestom999 4:05cb9a1b60ca 118 lineNumber++;
Jamestom999 4:05cb9a1b60ca 119 }
dreschpe 0:057244fcbbb6 120
Jamestom999 4:05cb9a1b60ca 121 return lineNumber;
Jamestom999 4:05cb9a1b60ca 122 }