Diff: SD600A.cpp

Revision:

26:98163818a82e

Parent:

25:14e5984d3aae

Child:

27:6667543f3b28

--- a/SD600A.cpp	Sat Oct 13 03:10:29 2012 +0000
+++ b/SD600A.cpp	Sat Oct 13 04:49:47 2012 +0000
@@ -9,6 +9,22 @@
 #include "LedStrip.h"
 #include "SD600A.h"
 
+SD600ASupervisor::SD600ASupervisor(void) {
+    numstrips = 0;
+    byte_index = 0;
+    bit_index = 0;
+}
+
+void SD600ASupervisor::add(SD600A *strip) {
+    strips[numstrips] = strip;
+    numstrips++;
+    if (numstrips == 1) { // this is the first one, set up the interrupt.
+        data_length = strip->data_length;
+        NVIC_SetPriority(TIMER3_IRQn, 0);
+        idletoggle.attach_us(this, &SD600ASupervisor::spi_isr, INTERRUPT_INTERVAL);
+    }
+}
+
 /*
  * Soft SPI clockout routine.  Triggered every few microseconds,
  * repeatedly clocks out the strip contents.  Since each update function
@@ -16,14 +32,25 @@
  * there is no need to lock the buffer.
  */
 
-void SD600A::spi_isr(void) {
-    clk = 1;
-    dat = pixels[byte_index] & (0x80 >> bit_index);
-    clk = 0;
+void SD600ASupervisor::spi_isr(void) {
+    int i;
+    SD600A *curstrip;
+    for (i=0; i<numstrips; i++) {
+        curstrip = strips[i];
+        curstrip->clk = 1;
+        curstrip->dat = curstrip->pixels[byte_index] & (0x80 >> bit_index);
+    }
+    for (i=0; i<numstrips; i++) 
+        strips[i]->clk = 0;
     bit_index++;
-    clk = 1;
-    dat = pixels[byte_index] & (0x80 >> bit_index);
-    clk = 0;
+    for (i=0; i<numstrips; i++) 
+        strips[i]->clk = 1;
+    for (i=0; i<numstrips; i++) {
+        curstrip = strips[i];
+        curstrip->dat = curstrip->pixels[byte_index] & (0x80 >> bit_index);
+    }
+    for (i=0; i<numstrips; i++) 
+        strips[i]->clk = 0;
     bit_index++;
     if (bit_index == 8) {
         byte_index++;
@@ -33,6 +60,8 @@
         byte_index = 0;
 }
 
+
+
 SD600A::SD600A(PinName dataPin, PinName clockPin, int n) :
     dat(dataPin),
     clk(clockPin)  {
@@ -48,8 +77,6 @@
         byte_index = 0;
         bit_index = 0;
     } else error("SD600A could not allocate memory!\r\n");
-    NVIC_SetPriority(TIMER3_IRQn, 0);
-    idletoggle.attach_us(this, &SD600A::spi_isr, INTERRUPT_INTERVAL);
 }
 
 void SD600A::begin(void) {