Hello world code for PCA9632 library. This demonstrates device class call and "LedPwmOut class API".

Dependencies:   PCA9632 mbed

Please refer to the component page for details

The PCA9632 is an I²C-bus controlled 4-bit LED driver optimized for Red/Green/Blue/Amber (RGBA) color mixing applications.

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 "PCA9632.h"

PCA9632     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 );
        }
    }
}

Files at this revision

API Documentation at this revision

Comitter:
nxp_ip
Date:
Wed Mar 04 04:13:01 2015 +0000
Child:
1:ddbb17878c53
Commit message:
Initial version

Changed in this revision

PCA9632.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PCA9632.lib	Wed Mar 04 04:13:01 2015 +0000
@@ -0,0 +1,1 @@
+PCA9632#da1fe3fe7093
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Mar 04 04:13:01 2015 +0000
@@ -0,0 +1,44 @@
+#include "mbed.h"
+#include "PCA9632.h"
+
+PCA9632     led_cntlr( p28, p27, 0xC4 );    //  SDA, SCL, Slave_address(option)
+LedPwmOut   led( led_cntlr, L0 );           //  for LED0 pin
+
+int main()
+{
+    //
+    //  Here are two types of PWM control samples
+    //  (User can choose one of those interface to set the PWM.)
+    //
+    //  1st sample is using LedPwmOut API.
+    //    It provides similar interface like PwmOut of mbed-SDK
+    //
+    //  2nd sample is using PCA9632 class function.
+    //    the 'pwm()' function takes LED channel number and duty-ratio value
+    //
+
+    while ( 1 ) {
+        
+        //
+        //  1st sample is using LedPwmOut API.
+        //  PWM control via LedPwmOut
+        //
+        for ( int i = 0; i < 3; i++ ) {
+            for( float p = 0.0f; p < 1.0f; p += 0.1f ) {
+                led     = p;  //  Controls LED0 pin
+                wait( 0.1 );
+            }
+        }
+
+        //
+        //  2nd sample is using PCA9632 class function.
+        //  PWM control by device class function call
+        //
+        for ( int i = 0; i < 3; i++ ) {
+            for( float p = 0.0f; p < 1.0f; p += 0.1f ) {
+                led_cntlr.pwm( 1, p );  //  Controls LED1 pin
+                wait( 0.1 );
+            }
+        }
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Mar 04 04:13:01 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/9ad691361fac
\ No newline at end of file