Diff: adc.cpp

Revision:

47:54fafe151669

Parent:

46:a015ebf4663b

Child:

48:29f14bc30ba6

--- a/adc.cpp	Sat Jan 31 08:13:33 2015 +0000
+++ b/adc.cpp	Sat Jan 31 16:44:40 2015 +0000
@@ -49,17 +49,17 @@
     
     // Setup Configuration Register 2 
     ADC0_CFG2 = 0; // clear register
-    ADC0_CFG2 |= ADC_CFG2_ADHSC_MASK ; // select high-speed conversion
+    ADC0_CFG2 |= ADC_CFG2_ADHSC_MASK ;  // select high-speed conversion
     ADC0_CFG2 &= ~ADC_CFG2_MUXSEL_MASK; // select a channels    
     
     // Setup Status and Control Register 2 
-    ADC0_SC2 = 0;                   // clear register
-    ADC0_SC2 |= ADC_SC2_REFSEL(0);  // select external voltage reference
-    ADC0_SC2 |= ADC_SC2_DMAEN_MASK; // enable DMA
+    ADC0_SC2 = 0;                    // clear register
+    ADC0_SC2 |= ADC_SC2_REFSEL(0);   // select external voltage reference
+    ADC0_SC2 |= ADC_SC2_DMAEN_MASK;  // enable DMA
     ADC0_SC2 &= ~ADC_SC2_ADTRG_MASK; // select software trigger until calibration is complete
-    ADC1_SC2 = 0;                   // clear register
-    ADC1_SC2 |= ADC_SC2_REFSEL(0);  // select external voltage reference
-    ADC1_SC2 |= ADC_SC2_DMAEN_MASK; // enable DMA
+    ADC1_SC2 = 0;                    // clear register
+    ADC1_SC2 |= ADC_SC2_REFSEL(0);   // select external voltage reference
+    ADC1_SC2 |= ADC_SC2_DMAEN_MASK;  // enable DMA
     ADC1_SC2 &= ~ADC_SC2_ADTRG_MASK; // select software trigger until calibration is complete
     
     // Setup Status and Control Register 3 
@@ -103,9 +103,6 @@
     
     
     
-    
-    
-    
     // yellow indicating calibration complete
     red = 0;
     green = 0;
@@ -130,15 +127,10 @@
     gain = ADC1_RA; // read the register to clear SC1A[COCO]
     
     
-    
-    
-    
-    
     // green indicating calibration and initialization complete
     red = 1;
     green = 0;
     
-    
     debug.printf("ADC0_SC1a: %08x\r\n",ADC0_SC1A);  //(0x0000004d)
     debug.printf("ADC0_SC1b: %08x\r\n",ADC0_SC1B);  //(0x0000001f)
     debug.printf("ADC0_CFG1: %08x\r\n",ADC0_CFG1);  //(0x0000000c)
@@ -149,8 +141,8 @@
     debug.printf("ADC0_SC3:  %08x\r\n\n",ADC0_SC3); //(0x00000000)
     
     // Enable the ISR vector
-    NVIC_SetVector(ADC0_IRQn, (uint32_t)&ADC0_IRQHandler);
-    NVIC_EnableIRQ(ADC0_IRQn);
+    //NVIC_SetVector(ADC0_IRQn, (uint32_t)&ADC0_IRQHandler);
+    //NVIC_EnableIRQ(ADC0_IRQn);
 }
 
 void adc_start() {
@@ -162,12 +154,12 @@
     ADC1_SC3 |= ADC_SC3_ADCO_MASK;
     
     // set ADC to software trigger
+    ADC0_SC2 &= ~ADC_SC2_ADTRG_MASK;
     ADC1_SC2 &= ~ADC_SC2_ADTRG_MASK;
     
     // start ADC conversion (SW trigger)
     ADC0_SC1A |= ADC_SC1_ADCH(13);   // write to SC1A causing a trigger
     ADC1_SC1A |= ADC_SC1_ADCH(14);   // write to SC1A causing a trigger
-    //BW_ADC_SC1n_ADCH(0, 0, kAdcChannel13); // trigger the ADC
 }
 
 void adc_stop() {
@@ -190,5 +182,6 @@
 }
 
 void ADC0_IRQHandler() {
+    
     toggle1 = !toggle1;
 }
\ No newline at end of file