Hello world code for PCA9622 class library. The PCA9622 is a 16-channel Fm+ I2C-bus 100mA/40 V LED driver. This program shows its basic operation of PWM output.

Dependencies:   PCA962x mbed

Please refer to the component page for details

8, 16 & 24-channel Fm+ I2C-bus 100mA/40 V LED driver

High-level API is available

A high-level API that can be used as the "PwmOut" of bed-SDK is available.
This API enables to make instances of each LED output pins and control PWM duty cycle by assignment.
For detail information, refer API document of LedPwmOut Class class which is included in PCA962xA class library.

#include "mbed.h"
#include "PCA9622.h"

PCA9622     led_cntlr( p28, p27, 0xC4 );  //  SDA, SCL, Slave_address(option)
LedPwmOut   led( led_cntlr, L0 );

int main()
{
    while( 1 ) {
        for( float p = 0.0f; p < 1.0f; p += 0.1f ) {
            led     = p;
            wait( 0.1 );
        }
    }
}

main.cpp

Committer:
nxp_ip
Date:
2015-03-19
Revision:
3:bd423ccaade9
Parent:
1:bf55a593bb79

File content as of revision 3:bd423ccaade9:

#include "mbed.h"
#include "PCA9622.h"

PCA9622     led_cntlr( p28, p27, 0x3E );    //  SDA, SCL, Slave_address(option)
LedPwmOut   led0( led_cntlr, L0  );         //  Instance for LED0 pin
LedPwmOut   led1( led_cntlr, L1  );         //  Instance for LED1 pin
LedPwmOut   led2( led_cntlr, L2  );         //  Instance for LED2 pin

int main()
{
    while(1) {

        for ( float p = 1.0; p >= 0.0; p -= 0.01 ) {
            led0    = p;    //  Set LED0 output PWM dutycycle as 'p'
            wait( 0.01 );
        }

        for ( float p = 1.0; p >= 0.0; p -= 0.01 ) {
            led1    = p;    //  Set LED1 output PWM dutycycle as 'p'
            wait( 0.01 );
        }

        for ( float p = 1.0; p >= 0.0; p -= 0.01 ) {
            led2    = p;    //  Set LED2 output PWM dutycycle as 'p'
            wait( 0.01 );
        }
    }
}