Hello world code for PCA9624 class library. The PCA9624 is a 8-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 "PCA9624.h"

PCA9624     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 );
        }
    }
}
Committer:
nxp_ip
Date:
Thu Mar 19 10:09:29 2015 +0000
Revision:
3:6b4a4f901b68
Parent:
2:fb3d856830ca
Sample code updated to use high-level-API : LedPwmOut

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nxp_ip 0:50ca448b1ffd 1 #include "mbed.h"
nxp_ip 3:6b4a4f901b68 2 #include "PCA9624.h"
nxp_ip 0:50ca448b1ffd 3
nxp_ip 3:6b4a4f901b68 4 PCA9624 led_cntlr( p28, p27, 0x3E ); // SDA, SCL, Slave_address(option)
nxp_ip 3:6b4a4f901b68 5 LedPwmOut led0( led_cntlr, L0 ); // Instance for LED0 pin
nxp_ip 3:6b4a4f901b68 6 LedPwmOut led1( led_cntlr, L1 ); // Instance for LED1 pin
nxp_ip 3:6b4a4f901b68 7 LedPwmOut led2( led_cntlr, L2 ); // Instance for LED2 pin
nxp_ip 0:50ca448b1ffd 8
nxp_ip 0:50ca448b1ffd 9 int main()
nxp_ip 0:50ca448b1ffd 10 {
nxp_ip 0:50ca448b1ffd 11 while(1) {
nxp_ip 3:6b4a4f901b68 12
nxp_ip 3:6b4a4f901b68 13 for ( float p = 1.0; p >= 0.0; p -= 0.01 ) {
nxp_ip 3:6b4a4f901b68 14 led0 = p; // Set LED0 output PWM dutycycle as 'p'
nxp_ip 3:6b4a4f901b68 15 wait( 0.01 );
nxp_ip 0:50ca448b1ffd 16 }
nxp_ip 1:e2289f758d62 17
nxp_ip 3:6b4a4f901b68 18 for ( float p = 1.0; p >= 0.0; p -= 0.01 ) {
nxp_ip 3:6b4a4f901b68 19 led1 = p; // Set LED1 output PWM dutycycle as 'p'
nxp_ip 3:6b4a4f901b68 20 wait( 0.01 );
nxp_ip 3:6b4a4f901b68 21 }
nxp_ip 1:e2289f758d62 22
nxp_ip 3:6b4a4f901b68 23 for ( float p = 1.0; p >= 0.0; p -= 0.01 ) {
nxp_ip 3:6b4a4f901b68 24 led2 = p; // Set LED2 output PWM dutycycle as 'p'
nxp_ip 3:6b4a4f901b68 25 wait( 0.01 );
nxp_ip 1:e2289f758d62 26 }
nxp_ip 1:e2289f758d62 27 }
nxp_ip 3:6b4a4f901b68 28 }