ST / Mbed 2 deprecated HelloWorld_LED61A1

Simple test application for the STMicroelectronics X-NUCLEO-LED61A1 LED Control Expansion Board.

Dependencies:   X_NUCLEO_LED61A1 mbed

Fork of HelloWorld_LED61A1 by ST Expansion SW Team

LED Control with the X-NUCLEO-LED61A1 Expansion Board

This application provides a simple example of usage of the X-NUCLEO-LED61A1 LED Control Expansion Board.
It shows how to control a LED stripe load connected to the board by means of a sinusoidal wave form injected into the PWM dimming control pin.

Diff: main.cpp

Revision:
19:4b259f97c1e3
Parent:
18:bef2ec6d10ab
diff -r bef2ec6d10ab -r 4b259f97c1e3 main.cpp
--- a/main.cpp	Thu Jul 13 16:15:24 2017 +0000
+++ b/main.cpp	Tue Oct 17 13:03:29 2017 +0000
@@ -57,7 +57,7 @@
 #define LOOP_PERIOD_us                    (5E5) /* 0.5 seconds. */
 
 /* Sin period in micro-seconds. */
-#define PWM_SIN_PERIOD_us                 (1E7) /* 10 seconds. */
+#define LED_SIN_PERIOD_us                 (1E7) /* 10 seconds. */
 
 
 /* Variables -----------------------------------------------------------------*/
@@ -85,19 +85,20 @@
     static int tick = 0;
 
     /* Handling the LED dimming when powered ON. */
-    float pwm_dimming = 0.5f * sin(2 * M_PI * (tick++ * LOOP_PERIOD_us) / PWM_SIN_PERIOD_us) + 0.5f;
-    tick %= (int) (PWM_SIN_PERIOD_us / LOOP_PERIOD_us);
+    float dimming = 0.5f * sin(2 * M_PI * (tick++ * LOOP_PERIOD_us) / LED_SIN_PERIOD_us) + 0.5f;
+    tick %= (int) (LED_SIN_PERIOD_us / LOOP_PERIOD_us);
 
     /* Printing to the console. */
-    printf("Sinusoidal PWM Dimming --> %0.2f\r", pwm_dimming);
+    printf("Sinusoidal PWM Dimming --> %0.2f\r", dimming);
 
     /*
        Writing PWM dimming values to the LED.
 
        Notes:
-         + Replace "set_pwm_dimming()" with "set_analog_dimming()" for an analog control.
+         + Use "set_pwm_dimming()" for a PWM control, or "set_analog_dimming()"
+           for an analog control.
     */
-    led->set_pwm_dimming(pwm_dimming);
+    led->set_analog_dimming(dimming);
 }
 
 /**