Diff: pdb.cpp

Revision:

51:43143a3fc2d7

Parent:

50:33524a27e08c

--- a/pdb.cpp	Sat Jan 31 19:46:00 2015 +0000
+++ b/pdb.cpp	Sat Jan 31 20:17:58 2015 +0000
@@ -1,7 +1,11 @@
 #include "pdb.h"
 
-Serial debug2(USBTX,USBRX);
+//Serial debug2(USBTX,USBRX);
+
 
+/*  The PDB is setup to run continuous (when enabled) so it will
+ *  periodically trigger the ADCs to sample and trigger DMA2 to 
+ *  save the quadrature angle.  The PDB can be started and stopped. */
 void pdb_init() {
     
     // initialize the Programmable Delay Block
@@ -32,8 +36,27 @@
              | PDB_SC_MULT(0)      // Multiplication factor 20 for the prescale divider for the counter clock
              | PDB_SC_CONT_MASK    // Contintuous, rather than one-shot, mode
              | PDB_SC_LDOK_MASK;   // Need to ok the loading or it will not load certain regsiters!
-    //PDB0_SC &= ~PDB_SC_CONT_MASK;  // enable one-shot mode for debugging.
     
+    //NVIC_SetVector(PDB0_IRQn, (uint32_t)&PDB0_IRQHandler);
+    //NVIC_EnableIRQ(PDB0_IRQn);
+}
+
+void PDB0_IRQHandler() {
+
+}
+
+void pdb_start() {
+    PDB0_SC |= PDB_SC_PDBEN_MASK;  // PDB enabled
+    PDB0_SC |= PDB_SC_SWTRIG_MASK; // enable software trigger (start the PDB)
+}
+
+void pdb_stop() {
+    //PDB0_SC &= ~PDB_SC_CONT_MASK; // change to one-shot mode, so pdb will stop after current count
+    PDB0_SC &= ~PDB_SC_PDBEN_MASK;  // PDB disabled
+}
+
+
+/*
     debug2.printf("PDB0_SC:       %08x\r\n",PDB0_SC);
     debug2.printf("PDB0_MOD:      %08x\r\n",PDB0_MOD);
     debug2.printf("PDB0_CNT:      %08x\r\n",PDB0_CNT);
@@ -54,24 +77,4 @@
     debug2.printf("PDB0_PO0DLY:   %08x\r\n",PDB0_PO0DLY);
     debug2.printf("PDB0_PO1DLY:   %08x\r\n",PDB0_PO1DLY);
     debug2.printf("PDB0_PO2DLY:   %08x\r\n\n",PDB0_PO2DLY);
-    
-    //NVIC_SetVector(PDB0_IRQn, (uint32_t)&PDB0_IRQHandler);
-    //NVIC_EnableIRQ(PDB0_IRQn);
-}
-
-
-void PDB0_IRQHandler() {
-    //switcher = !switcher;
-
-}
-
-
-void pdb_start() {
-    PDB0_SC |= PDB_SC_PDBEN_MASK;  // PDB enabled
-    PDB0_SC |= PDB_SC_SWTRIG_MASK; // enable software trigger (start the PDB)
-}
-
-void pdb_stop() {
-    //PDB0_SC &= ~PDB_SC_CONT_MASK; // change to one-shot mode, so pdb will stop after current count
-    PDB0_SC &= ~PDB_SC_PDBEN_MASK;  // PDB disabled
-}
\ No newline at end of file
+    */
\ No newline at end of file