From e9207f0563c36df419a167a2694ec8cf7dd2fe78 Mon Sep 17 00:00:00 2001
From: Erik Strand <erik.strand@cba.mit.edu>
Date: Thu, 12 Dec 2019 17:23:03 -0500
Subject: [PATCH] Call initADC in setup instead of analogRead

---
 adc/adc.ino | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/adc/adc.ino b/adc/adc.ino
index 9994953..a30e92a 100644
--- a/adc/adc.ino
+++ b/adc/adc.ino
@@ -29,11 +29,6 @@ uint32_t bm_analogRead( uint32_t pin )
 {
     uint32_t valueRead = 0;
 
-    // Uses a variable outside this translation unit
-    //if (!ADCinitialized) {
-    //    initADC();
-    //}
-
     // pinPeripheral now handles disabling the DAC (if active)
     if ( pinPeripheral(pin, PIO_ANALOG_ADC) == RET_STATUS_OK )
     {
@@ -54,8 +49,9 @@ void setup() {
     // put your setup code here, to run once:
     Serial.begin(9600);
     pinMode(LED_GREEN, OUTPUT);
-    // Calling the regular method once ensures that the ADC does get initialized.
-    analogRead(SENSE_LINE_0);
+
+    // Initialize the ADC
+    initADC();
 
     // Selection for the positive ADC input
     ADC->INPUTCTRL.bit.MUXPOS = GetADC(SENSE_LINE_0);
@@ -64,7 +60,6 @@ void setup() {
     // Enable ADC
     ADC->CTRLA.bit.ENABLE = 0x01;
     syncADC();
-
 }
 
 void loop() {
-- 
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