From e811d778ea51ac1e25588a9cc957fca4f532ea5a Mon Sep 17 00:00:00 2001
From: Brett Weiland <brett_weiland@bpcspace.com>
Date: Fri, 27 Oct 2023 07:10:26 -0500
Subject: init

---
 analog_read.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 analog_read.h

(limited to 'analog_read.h')

diff --git a/analog_read.h b/analog_read.h
new file mode 100644
index 0000000..ee6ba27
--- /dev/null
+++ b/analog_read.h
@@ -0,0 +1,19 @@
+#ifndef ANALOG_READ_H
+#define ANALOG_READ_H
+
+/** analog read:
+ * change ADMUX MUXn and REFS1:0 to select channel,
+ * ADC enbale bit: ADEN in ADCSRA
+ * ADC is data reg. Right ajusted, can be left by ADLAR in ADMUX
+ * If left ajusted & no more then 8 bits, read ADCH, otherwise first ADCL
+ * Conversion:
+ *  Set ADSC (is cleared once conversion is done)
+ *  Or: ADTS mux bits in ADCSRA for auto trigger (will trigger on high)
+ *    interrupt flag will be enabled
+**/
+
+//PORTF pin 1 hardcoded as analog
+uint8_t analog_read_8bit();
+void init_adc();
+
+#endif
-- 
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