Diff: PCA9745B.h

Revision:

0:0f53e5add603

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PCA9745B.h	Mon Jul 23 12:25:17 2018 +0000
@@ -0,0 +1,69 @@
+#ifndef PCA9745B_H
+#define PCA9745B_H
+
+/**
+  * SPI speed used by the mbed to communicate with the PCA9745B
+  * The PCA9745B supports up to 10Mhz.
+  */
+#define SPI_SPEED 1000000
+
+/**
+  *  Using the TLC5 class to control an LED:
+  *  @code
+  *  #include "mbed.h"
+  *  #include "PCA9745B.h"
+  *  
+  *  // Create the TLC5711 instance
+  *  PCA9745B tlc(1, p7, p5);
+  *  
+  *  int main()
+  *  {   
+  *      
+  *      while(1)
+  *      {
+  *         // Led1 -> R0
+  *         tlc.setLED(0, 65535, 0, 0);
+  *         tlc.write( );
+  *         tlc.setLED(1, 0, 0, 0);
+  *         tlc.write( );
+  *         tlc.setLED(2, 0, 0, 0);
+  *         tlc.write( );
+  *         tlc.setLED(3, 0, 0, 0);
+  *         tlc.write( );
+  *         wait( 1 );
+  *  
+  *      }
+  *  }
+  *  @endcode
+  */
+
+ class PCA9745B
+{
+
+public:/**
+      *  Set up the PCA9745B
+      *  @param SCLK - The SCK pin of the SPI bus
+      *  @param MOSI - The MOSI pin of the SPI bus
+      *  @param number - The number of PCA9745Bs 
+      */
+  
+    PCA9745B(uint8_t number, PinName SCLK, PinName MOSI);
+
+  void setPWM(uint8_t chan, uint16_t pwm);
+  void setLED(uint8_t lednum, uint16_t r, uint16_t g, uint16_t b);
+  void write(void);    
+        
+  uint8_t n;
+  
+  private:
+  
+  SPI spi;
+  
+  uint16_t *pwmbuffer;
+
+  uint8_t BCr, BCg, BCb;
+  int8_t numdrivers;
+
+};
+ 
+#endif