main.cpp

00001 /** 
00002  * @file main.cpp 
00003  * @brief  mbed Avago/HP HCMS2975 LED matrix display Library test. 
00004  * @author WH
00005  * @date   Copyright (c) 2014
00006  *         v01: WH, Initial release
00007  *              Info available at http://playground.arduino.cc/Main/LedDisplay and http://www.pjrc.com/teensy/td_libs_LedDisplay.html
00008 */
00009 #include "mbed.h"
00010 #include "HCMS2975.h"
00011 
00012 // mbed Interface Hardware definitions
00013 DigitalOut myled1(LED1);
00014 DigitalOut myled2(LED2);
00015 DigitalOut myled3(LED3);
00016 DigitalOut heartbeatLED(LED4);
00017 
00018 // Host PC Communication channels
00019 Serial pc(USBTX, USBRX);
00020 
00021 // SPI Communication
00022 SPI spi_led(p5, NC, p7); // MOSI, MISO, SCLK
00023 
00024 //Display
00025 //HCMS2975 led(&spi_led, p8, p9, NC, HCMS2975::LED8x1); // SPI bus, CS pin, RS pin, RST pin, LEDType = Ok
00026 //HCMS2975 led(&spi_led, p8, p9, NC, HCMS2975::LED16x1); // SPI bus, CS pin, RS pin, RST pin, LEDType = Ok
00027 //HCMS2975 led(&spi_led, p8, p20, NC, HCMS2975::LED8x1); // SPI bus, CS pin, RS pin, RST pin, LEDType = Ok
00028 //HCMS2975 led(&spi_led, p8, p20, NC, HCMS2975::LED8x2); // SPI bus, CS pin, RS pin, RST pin, LEDType = Ok
00029 //HCMS2975 led(&spi_led, p8, p20, NC, HCMS2975::LED16x1); // SPI bus, CS pin, RS pin, RST pin, LEDType = Ok
00030 HCMS2975 led(&spi_led, p8, p20, NC, HCMS2975::LED16x2); // SPI bus, CS pin, RS pin, RST pin, LEDType = Ok
00031 
00032 // Variables for Heartbeat and Status monitoring
00033 Ticker heartbeat;
00034 bool heartbeatflag=false;
00035 
00036 // Heartbeat monitor
00037 void pulse() {
00038   heartbeatLED = !heartbeatLED;
00039 }
00040 
00041 void heartbeat_start() {
00042   heartbeat.attach(&pulse, 0.5);
00043   heartbeatflag = true;
00044 }
00045 
00046 void heartbeat_stop() {
00047   heartbeat.detach();
00048   heartbeatflag = false;
00049 }
00050 
00051 int main() {
00052   int cnt;
00053   
00054   pc.printf("Hello mbed from HCMS2975\n\r");  
00055     
00056   heartbeat_start();
00057 
00058   led.locate(0, 0);                               
00059 
00060 //led.printf("*=%6d", 123456);
00061 //            12345678 
00062   led.printf("Hi mbed ");  
00063   wait(2);
00064 
00065   led.setUDC(0, (char *) udc_0);
00066   led.setUDC(1, (char *) udc_1);
00067   led.setUDC(2, (char *) udc_2);
00068   led.setUDC(3, (char *) udc_3);
00069   led.setUDC(4, (char *) udc_Bat_Hi);
00070   led.setUDC(5, (char *) udc_Bat_Ha);
00071   led.setUDC(6, (char *) udc_Bat_Lo);
00072 //  led.setUDC(7, (char *) udc_smiley);
00073   led.setUDC(7, (char *) udc_AC);  
00074   
00075   led.putc(0);
00076   led.putc(1);
00077   led.putc(2);
00078   led.putc(3);
00079   led.putc(4);
00080   led.putc(5);
00081   led.putc(6);
00082   led.putc(7);            
00083   wait(2);
00084 
00085   led.setBrightness(HCMS2975_BRIGHT_3_3);  
00086  
00087   cnt=0x20;  
00088   while(1) {
00089     wait(0.25);
00090                         
00091     led.putc(cnt);
00092     pc.putc('#');      
00093     cnt++;
00094     if (cnt == 0x80) cnt=0x20;
00095   }
00096   
00097 }