From: Erik Andresen <erik@vontaene.de>
Date: Fri, 19 Apr 2019 18:01:42 +0000 (+0200)
Subject: avr nano: Fix adc sample rate
X-Git-Url: https://defiant.homedns.org/gitweb/?a=commitdiff_plain;h=7e8cc0303c358a8882f5b9f12df4357b63429288;p=ros_wild_thumper.git

avr nano: Fix adc sample rate
---

diff --git a/avr/nano/main.c b/avr/nano/main.c
index cf3070c..935ce49 100644
--- a/avr/nano/main.c
+++ b/avr/nano/main.c
@@ -228,8 +228,9 @@ uint16_t ReadChannel(uint8_t mux) {
 	uint8_t i;
 	uint16_t result;
 
-	ADCSRA = (1<<ADEN) | (1<<ADPS1) | (1<<ADPS0);    // Frequenzvorteiler 
-	// setzen auf 8 (1) und ADC aktivieren (1)
+	ADCSRA = (1<<ADEN) | (1<<ADPS2) | (1<<ADPS1) | (1<<ADPS0);    // Frequenzvorteiler
+	// setzen auf 128 (1) und ADC aktivieren (1)
+	// 16MHz/128=125kHz
 
 	ADMUX = mux;                      // Kanal waehlen
 	ADMUX |= (1<<REFS0);
diff --git a/avr/nano/main.hex b/avr/nano/main.hex
index b0aefa8..a1a442b 100644
--- a/avr/nano/main.hex
+++ b/avr/nano/main.hex
@@ -36,7 +36,7 @@
 :100230008093BC00809121018F5F8093210105C0D4
 :1002400085EC01C085ED8093BC00FF91EF91BF91DB
 :10025000AF919F918F910F900FBE0F901F901895A7
-:1002600093E890937A0080937C0080917C00806476
+:1002600097E890937A0080937C0080917C00806472
 :1002700080937C0080917A00806480937A008091E2
 :100280007A0086FDFCCF809178009091790025E07E
 :1002900080E090E030917A00306430937A003091C1