From a4e4d0ef5564af39095f4a1cd641a018fd0a09d1 Mon Sep 17 00:00:00 2001
From: Tristan Krause <tristan.krause@stud.htwk-leipzig.de>
Date: Wed, 27 Mar 2019 10:33:26 +0100
Subject: [PATCH] complex stroke erste version

---
 B15F.elf     | Bin 12816 -> 12996 bytes
 B15F.hex     | 291 ++++++++++++++++++++++++++-------------------------
 adu.cpp      |   3 +-
 main.cpp     |  42 +++-----
 requests.cpp |  22 ++++
 requests.h   |   2 +
 usart.cpp    |   2 +
 usart.h      |   1 +
 8 files changed, 192 insertions(+), 171 deletions(-)

diff --git a/B15F.elf b/B15F.elf
index 390edce308a5d651cf85ea41205c28a4000797e6..2b81c449edd106cd2f3f3a7f4d64ec8e7cc82a20 100644
GIT binary patch
delta 3637
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diff --git a/B15F.hex b/B15F.hex
index c92ba99..1bff614 100644
--- a/B15F.hex
+++ b/B15F.hex
@@ -1,143 +1,152 @@
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 :00000001FF
diff --git a/adu.cpp b/adu.cpp
index 7038168..adabec2 100644
--- a/adu.cpp
+++ b/adu.cpp
@@ -22,7 +22,6 @@ uint16_t ADU::getValue(uint8_t channel)
 
 	// warte auf Ende
 	while(ADCSRA & _BV(ADSC));
-
-	// liefere Ergebnis
+	
 	return ADCW;
 }
diff --git a/main.cpp b/main.cpp
index c583d18..036cf89 100644
--- a/main.cpp
+++ b/main.cpp
@@ -9,18 +9,14 @@
 
 #define WDT_TIMEOUT WDTO_15MS
 
-/*
+
 ISR(WDT_vect)
 {
-	WDTCSR |= _BV(WDIE);
-}*/
+	WDTCSR = _BV(WDIE) | _BV(WDE);
+}
 
 void initAll()
 {
-	// deaktiviere WDT, da er bei Neustart erhalten bleiben kann
-	WDTCSR = 0;
-	wdt_disable();
-
 	spi.init();
 
 	beba0.setDirA(0x00); // alle Ausgang
@@ -34,18 +30,16 @@ void initAll()
 
 	// aktiviere Interrupts
 	sei();
-}
-
-void handleRequest()
-{
-	// stoppe WDT
-	wdt_disable();
-	
-	const uint8_t req = usart.readByte();
 	
 	// starte WDT
 	wdt_enable(WDT_TIMEOUT);
-	WDTCSR = _BV(WDIE);
+	WDTCSR = _BV(WDIE) | _BV(WDE);
+	wdt_reset();
+}
+
+void handleRequest()
+{	
+	const uint8_t req = usart.readByte();	
 	wdt_reset();
 
 	switch(req)
@@ -92,6 +86,10 @@ void handleRequest()
 		case RQ_ADC:
 			rqAnalogRead();
 			break;
+			
+		case RQ_ADC_DAC_STROKE:
+			rqAdcDacStroke();
+			break;
 
 		default:
 			break;
@@ -103,18 +101,6 @@ int main()
 
 	initAll();
 
-	
-	// DEBUGGING, spaeter entfernen!
-	/*
-	for(int i = 0; i < 3; i++)
-	{
-		beba0.writePortA(0xFF);
-		_delay_ms(100);
-		beba0.writePortA(0x00);
-		_delay_ms(100);
-		wdt_reset();
-	}*/
-
 	while(1)
 	{
 		handleRequest();
diff --git a/requests.cpp b/requests.cpp
index 3d483a7..dbd2a2a 100644
--- a/requests.cpp
+++ b/requests.cpp
@@ -71,3 +71,25 @@ void rqAnalogRead()
 	uint16_t value = adu.getValue(channel);
 	usart.writeInt(value);
 }
+
+void rqAdcDacStroke()
+{	
+	int16_t start = static_cast<int16_t>(usart.readInt());
+	int16_t delta = static_cast<int16_t>(usart.readInt());
+	int16_t count = static_cast<int16_t>(usart.readInt());
+	
+	usart.writeByte(USART::MSG_OK);
+	
+	count *= delta;
+	
+	for(int16_t i = start; i != count; i += delta)
+	{
+		dac0.setValue(i);
+		uint16_t a = adu.getValue(0);
+		uint16_t b = adu.getValue(1);
+		usart.writeInt(a);
+		usart.writeInt(b);
+	}
+	
+	usart.writeByte(USART::MSG_OK);
+}
diff --git a/requests.h b/requests.h
index 00f1324..d19c305 100644
--- a/requests.h
+++ b/requests.h
@@ -14,6 +14,7 @@ constexpr static uint8_t RQ_BE1  = 8;
 constexpr static uint8_t RQ_AA0  = 9;
 constexpr static uint8_t RQ_AA1  = 10;
 constexpr static uint8_t RQ_ADC  = 11;
+constexpr static uint8_t RQ_ADC_DAC_STROKE  = 12;
 
 void rqTestConnection(void);
 void rqBoardInfo(void);
@@ -26,5 +27,6 @@ void rqDigitalRead1(void);
 void rqAnalogWrite0(void);
 void rqAnalogWrite1(void);
 void rqAnalogRead(void);
+void rqAdcDacStroke(void);
 
 #endif // REQUESTS_H
diff --git a/usart.cpp b/usart.cpp
index 4ef8f5b..5ed1170 100644
--- a/usart.cpp
+++ b/usart.cpp
@@ -17,6 +17,7 @@ void USART::writeByte(uint8_t b)
 {
 	UDR0 = b;
 	while(!(UCSR0A & _BV(TXC0)));
+	_delay_us(100);
 }
 
 
@@ -26,6 +27,7 @@ void USART::writeInt(uint16_t v)
 	v >>= 8;
 	UDR0 = v & 0xFF;
 	while(!(UCSR0A & _BV(TXC0)));
+	_delay_ms(1);
 }
 
 uint8_t USART::readByte()
diff --git a/usart.h b/usart.h
index 6a7cf29..7aca473 100644
--- a/usart.h
+++ b/usart.h
@@ -2,6 +2,7 @@
 #define USART_H
 
 #include <avr/io.h>
+#include <util/delay.h>
 #include <stdint.h>
 
 constexpr uint16_t BAUDRATE = 38400UL; //9600UL//9600