main.cpp

00001 #include "mbed.h"
00002 #include "PCA9955A.h"
00003 
00004 //  making an instance of PCA9955A (PCA9955A is cpmpatible to PCA9955B)
00005 PCA9955A    led_cntlr( p28, p27, 0x02 );    //  SDA, SCL, Slave_address(option)
00006 
00007 //  LED output instances in array
00008 LedPwmOutCC leds[]  = {
00009     LedPwmOutCC ( led_cntlr,  L0  ),         //  Instance for LED0  pin
00010     LedPwmOutCC ( led_cntlr,  L1  ),         //  Instance for LED1  pin
00011     LedPwmOutCC ( led_cntlr,  L2  ),         //  Instance for LED2  pin
00012     LedPwmOutCC ( led_cntlr,  L3  ),         //  Instance for LED3  pin
00013     LedPwmOutCC ( led_cntlr,  L4  ),         //  Instance for LED4  pin
00014     LedPwmOutCC ( led_cntlr,  L5  ),         //  Instance for LED5  pin
00015     LedPwmOutCC ( led_cntlr,  L6  ),         //  Instance for LED6  pin
00016     LedPwmOutCC ( led_cntlr,  L7  ),         //  Instance for LED7  pin
00017     LedPwmOutCC ( led_cntlr,  L8  ),         //  Instance for LED8  pin
00018     LedPwmOutCC ( led_cntlr,  L9  ),         //  Instance for LED9  pin
00019     LedPwmOutCC ( led_cntlr, L10  ),         //  Instance for LED10 pin
00020     LedPwmOutCC ( led_cntlr, L11  ),         //  Instance for LED11 pin
00021     LedPwmOutCC ( led_cntlr, L12  ),         //  Instance for LED12 pin
00022     LedPwmOutCC ( led_cntlr, L13  ),         //  Instance for LED13 pin
00023     LedPwmOutCC ( led_cntlr, L14  ),         //  Instance for LED14 pin
00024     LedPwmOutCC ( led_cntlr, L15  )          //  Instance for LED15 pin
00025 };
00026 
00027 int main()
00028 {
00029     for ( int i = 0; i < 16; i++ )
00030         leds[ i ].current( 0.5 );    //  LED output current set to 50%
00031 
00032     while(1) {
00033         for ( int i = 0; i < 16; i++ ) {
00034             for ( float p = 1.0; p >= 0.0; p -= 0.01 ) {
00035                 leds[ i ]    = p;   //  set 'p' value into LED output instance
00036                 wait( 0.01 );
00037             }
00038         }
00039     }
00040 }