Mike Millsap / lpc4088_displaymodule_hello_world

Step 4.6 of Tutorial

Dependencies:   DMBasicGUI DMSupport

Fork of lpc4088_displaymodule_hello_world by Embedded Artists

main.cpp@6:e904b6833ea4, 2016-06-14 (annotated)

Committer:
millsrm0724
Date:
Tue Jun 14 20:48:05 2016 +0000
Revision:
6:e904b6833ea4
Parent:
0:8ef5f57e33dc 
Added Step 4.6 of tutorial

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:8ef5f57e33dc 1 #include "mbed.h"
embeddedartists 0:8ef5f57e33dc 2 #include "DMBoard.h"
embeddedartists 0:8ef5f57e33dc 3 #include "lpc_swim.h"
embeddedartists 0:8ef5f57e33dc 4 #include "lpc_swim_font.h"
embeddedartists 0:8ef5f57e33dc 5
millsrm0724 6:e904b6833ea4 6 DigitalOut myled1(LED1);
millsrm0724 6:e904b6833ea4 7 DigitalOut myled2(LED2);
millsrm0724 6:e904b6833ea4 8 DigitalOut myled3(LED3);
millsrm0724 6:e904b6833ea4 9 DigitalOut myled4(LED4);
millsrm0724 6:e904b6833ea4 10
embeddedartists 0:8ef5f57e33dc 11 int main()
embeddedartists 0:8ef5f57e33dc 12 {
embeddedartists 0:8ef5f57e33dc 13 DMBoard::BoardError err;
embeddedartists 0:8ef5f57e33dc 14 DMBoard* board = &DMBoard::instance();
embeddedartists 0:8ef5f57e33dc 15 RtosLog* log = board->logger();
embeddedartists 0:8ef5f57e33dc 16 Display* disp = board->display();
embeddedartists 0:8ef5f57e33dc 17
millsrm0724 6:e904b6833ea4 18 //Turn all LEDs off
millsrm0724 6:e904b6833ea4 19 myled1 = 1; //LED1 is active low, turn it off
millsrm0724 6:e904b6833ea4 20 myled2 = 1; //LED2 is active low, turn it off
millsrm0724 6:e904b6833ea4 21 myled3 = 0; //LED3 is active high, turn it off
millsrm0724 6:e904b6833ea4 22 myled4 = 0; //LED4 is active high, turn it off
millsrm0724 6:e904b6833ea4 23
embeddedartists 0:8ef5f57e33dc 24 do {
embeddedartists 0:8ef5f57e33dc 25 err = board->init();
embeddedartists 0:8ef5f57e33dc 26 if (err != DMBoard::Ok) {
embeddedartists 0:8ef5f57e33dc 27 log->printf("Failed to initialize the board, got error %d\r\n", err);
embeddedartists 0:8ef5f57e33dc 28 break;
embeddedartists 0:8ef5f57e33dc 29 }
embeddedartists 0:8ef5f57e33dc 30
embeddedartists 0:8ef5f57e33dc 31 log->printf("\n\nHello World!\n\n");
embeddedartists 0:8ef5f57e33dc 32
embeddedartists 0:8ef5f57e33dc 33 SWIM_WINDOW_T win;
embeddedartists 0:8ef5f57e33dc 34 void* fb = disp->allocateFramebuffer();
embeddedartists 0:8ef5f57e33dc 35 if (fb == NULL) {
embeddedartists 0:8ef5f57e33dc 36 log->printf("Failed to allocate memory for a frame buffer\r\n");
embeddedartists 0:8ef5f57e33dc 37 err = DMBoard::MemoryError;
embeddedartists 0:8ef5f57e33dc 38 break;
embeddedartists 0:8ef5f57e33dc 39 }
embeddedartists 0:8ef5f57e33dc 40
embeddedartists 0:8ef5f57e33dc 41 // Prepare fullscreen
embeddedartists 0:8ef5f57e33dc 42 swim_window_open(&win,
embeddedartists 0:8ef5f57e33dc 43 disp->width(), disp->height(), // full size
embeddedartists 0:8ef5f57e33dc 44 (COLOR_T*)fb,
embeddedartists 0:8ef5f57e33dc 45 0,0,disp->width()-1, disp->height()-1, // window position and size
embeddedartists 0:8ef5f57e33dc 46 1, // border
embeddedartists 0:8ef5f57e33dc 47 WHITE, BLUE, BLACK); // colors: pen, backgr, forgr
embeddedartists 0:8ef5f57e33dc 48 swim_set_title(&win, "My Program", BLACK);
embeddedartists 0:8ef5f57e33dc 49
embeddedartists 0:8ef5f57e33dc 50 // Message
embeddedartists 0:8ef5f57e33dc 51 swim_put_text_xy(&win, "Hello World!", 100, 100);
embeddedartists 0:8ef5f57e33dc 52
embeddedartists 0:8ef5f57e33dc 53 // Start display in default mode (16-bit)
embeddedartists 0:8ef5f57e33dc 54 Display::DisplayError disperr = disp->powerUp(fb);
embeddedartists 0:8ef5f57e33dc 55 if (disperr != Display::DisplayError_Ok) {
embeddedartists 0:8ef5f57e33dc 56 log->printf("Failed to initialize the display, got error %d\r\n", disperr);
embeddedartists 0:8ef5f57e33dc 57 break;
embeddedartists 0:8ef5f57e33dc 58 }
embeddedartists 0:8ef5f57e33dc 59 } while(false);
embeddedartists 0:8ef5f57e33dc 60
embeddedartists 0:8ef5f57e33dc 61 if (err != DMBoard::Ok) {
embeddedartists 0:8ef5f57e33dc 62 log->printf("\nTERMINATING\n");
embeddedartists 0:8ef5f57e33dc 63 wait_ms(2000); // allow RtosLog to flush messages
embeddedartists 0:8ef5f57e33dc 64 mbed_die();
embeddedartists 0:8ef5f57e33dc 65 }
embeddedartists 0:8ef5f57e33dc 66
millsrm0724 6:e904b6833ea4 67 while(true)
millsrm0724 6:e904b6833ea4 68 {
millsrm0724 6:e904b6833ea4 69 myled3 = 0; //Turn LED3 off
millsrm0724 6:e904b6833ea4 70 myled1 = 0; //Turn LED1 on
millsrm0724 6:e904b6833ea4 71 wait(0.2); //Wait 200 ms
millsrm0724 6:e904b6833ea4 72 myled1 = 1; //Turn LED1 off
millsrm0724 6:e904b6833ea4 73 myled2 = 0; //Turn LED2 on
millsrm0724 6:e904b6833ea4 74 wait(0.2); //Wait 200 ms
millsrm0724 6:e904b6833ea4 75 myled2 = 1; //Turn LED2 off
millsrm0724 6:e904b6833ea4 76 myled4 = 1; //Turn LED4 on
millsrm0724 6:e904b6833ea4 77 wait(0.2); //Wait 200 ms
millsrm0724 6:e904b6833ea4 78 myled4 = 0; //Turn LED4 off
millsrm0724 6:e904b6833ea4 79 myled3 = 1; //Turn LED3 on
millsrm0724 6:e904b6833ea4 80 wait(0.2); //Wait 200 ms
embeddedartists 0:8ef5f57e33dc 81 }
embeddedartists 0:8ef5f57e33dc 82 }