Diff: TLC5940.cpp

Revision:

1:05d2234c0965

Parent:

0:1fb7b50d16b1

diff -r 1fb7b50d16b1 -r 05d2234c0965 TLC5940.cpp
--- a/TLC5940.cpp	Fri Jan 25 21:54:56 2013 +0000
+++ b/TLC5940.cpp	Fri Mar 22 16:46:41 2013 +0000
@@ -1,47 +1,44 @@
 #include "TLC5940.h"
 
-
+int num_drivers = 1;
 
-void setup (SPI &driver, PwmOut &gsclk, PinName xlat, PinName blank, PinName dcprg, PinName vprg, int num_ics)
+void setup (SPI &driver, DigitalOut &vprg, DigitalOut &xlat, DigitalOut &blank, DigitalOut &dcprg, PwmOut &gsclk, int num_ics)
 {
     xlat = 0;               // hold GS/DC data constant
-    blank = 1;              // Blank (squelch) all outputs
+    blank = 0;
+    blank = 1;
+    blank = 0;              // Blank (squelch) all outputs
     dcprg = 1;              // dcprg points DC data to DC register.
     vprg = 0;               // sets drivers to GS mode. Set to 1 to change to DC mode
-    gsclk.period_us (1);    // set grayscale clock to 1 MHz
+    gsclk.period_us (1);    // set grayscale clock to 1000 Hz
     gsclk = 0.5;            // turn on grayscale clock to 50% duty cycle at afore mentioned frequency
     
     if (num_ics <= 0)
     {
         num_drivers = 1;
-    {
+    }
     else
     {
         num_drivers = num_ics;
     }
     
     
-    driver.format (16,0);
+    driver.format (12,0);
     driver.frequency (30000000);
 }
 
 
-
-void update_led (SPI &driver, uint16_t LEDS [][])
+void update_led (SPI &driver, DigitalOut &xlat, DigitalOut &blank, unsigned short* LEDS)
 {
     blank = 1;
-    dcprg = 1;
-    vprg = 0;
-    xlat = 0;
-    
-    for (int k = 0; k < num_drivers; k++)
+    blank = 0;
+    for (int k = (num_drivers - 1); k >= 0; k--)
     {
-        for (int i = 0; i < 16; i++)
+        for (int i = (16 - 1); i >= 0; i--)
         {
-            driver.write (LEDS [k][i]);
+            driver.write (*(LEDS + k + i));
         }
     }
     xlat = 1;
     xlat = 0;
-    blank = 0;
 }
\ No newline at end of file