Added more after another day of corona

Signed-off-by: Tyrolyean <tyrolyean@tyrolyean.net>
2020-03-20 00:09:03 +01:00 · 2020-03-20 00:09:03 +01:00 · fe336cda09
commit fe336cda09
parent 1fe628bf1a
52 changed files with 6551 additions and 8999 deletions
--- a/bibliographies/DP.bib
+++ b/bibliographies/DP.bib
@ -0,0 +1,38 @@
+@Manual{pc16550,
+  title 			= {PC16550D Universal Asynchronous Receiver/Transmitter With FIFOs},
+  organization 	= {Texas Instruments Inc.},
+  year 			= {1995},
+  url 			= {https://www.scs.stanford.edu/10wi-cs140/pintos/specs/pc16550d.pdf},
+}
+
+@Manual{idt7201,
+  title 			= {CMOS  ASYNCHRONOUS  FIFO},
+  author 			= {{Integrated  Device  Technology,  Inc.}},
+  organization 	= {RENESAS},
+  year 			= {2002},
+  url 			= {http://www.komponenten.es.aau.dk/fileadmin/komponenten/Data_Sheet/Memory/IDT7201.pdf},
+}
+
+@Manual{tlc7528,
+  title 			= {DUAL 8-BIT MUTLIPLYING DIGITAL-TO-ANALOG CONVERTERS},
+  organization 	= {Texas Instruments Inc.},
+  year 			= {1987},
+  url 			= {http://www.komponenten.es.aau.dk/fileadmin/komponenten/Data_Sheet/Memory/IDT7201.pdf},
+}
+
+@techreport{rs232,
+	type = {Standard},
+	key = {TIA-/EIA-232-F},
+	month = October,
+	year = {1997},
+	title = {Interface Between Data Terminal Equipment and Data Circuit- Terminating Equipment Employing Serial Binary Data Interchange},
+	volume = {1997}
+}
+
+@Manual{max232,
+	month = February,
+	year = {1989},
+	title = {MAX232x Dual EIA-232 Drivers/Receivers},
+	organization = {Texas Instruments Inc.},
+	url = {https://www.ti.com/lit/ds/symlink/max232.pdf}
+}
--- a/code/16550/echo/src/main.c
+++ b/code/16550/echo/src/main.c
@ -1,31 +1,14 @@
-/* Copyright © 2020 tyrolyean
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
 #define F_CPU 16000000UL

 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
-#include <avr/wdt.h>
 #include <util/delay.h>
 #include <avr/interrupt.h>

 #define BUS_HOLD_US 1

-/* Shift values inside the PORTK Register */
+/* Shift values inside the PORTL Register */
 #define WR_SHIFT 1
 #define RD_SHIFT 2
 #define MR_SHIFT 0
@ -45,21 +28,6 @@
 #define UART_REG_MSR    6
 #define UART_REG_SCR    7

-
-uint8_t mcusr_mirror __attribute__ ((section (".noinit")));
-void get_mcusr(void) \
-  __attribute__((naked)) \
-  __attribute__((section(".init3")));
-
-void get_mcusr(void)
-{
-  mcusr_mirror = MCUSR;
-  MCUSR = 0;
-  wdt_disable();
-}
-
-int routine();
-
 void set_addr(uint8_t addr){
 	
 	PORTK = addr;
@ -75,7 +43,7 @@ void write_to_16550(uint8_t addr, uint8_t data){
 	PORTF = data;
 	PORTL &= ~(1<<CS_SHIFT);
 	
-	_delay_us(BUS_HOLD_US);	/*Wait for the data and signal lanes to become stable*/
+	_delay_us(BUS_HOLD_US);
 	
 	PORTL |= 1<<CS_SHIFT;
 	set_addr(0x00);
@ -94,7 +62,7 @@ uint8_t read_from_16550(uint8_t addr){
 	PORTL &= ~(1<<RD_SHIFT);
 	PORTL &= ~(1<<CS_SHIFT);
 	
-	_delay_us(BUS_HOLD_US);	/* Wait for the data and signal lanes to become stable*/
+	_delay_us(BUS_HOLD_US);
 	data = PINF;
 	PORTL |= 1<<CS_SHIFT;
 	set_addr(0x00);
@ -115,9 +83,6 @@ int main(){
 	DDRF = 0xFF; /* Data Bus */
 	DDRK = 0xFF; /* Address Bus */
 	DDRL = 0xFF; /* Control Bus */
-	PORTF = 0x00;
-	PORTK = 0x00;
-	PORTL = 0x00;

 	/* Cleanly reset the 16550 uart */
 	PORTL |= (1<<WR_SHIFT);
@ -129,45 +94,15 @@ int main(){
 	PORTL &= ~(1<<MR_SHIFT);
 	_delay_us(1000);

-	
 	write_to_16550(UART_REG_LCR,0x83);
 	write_to_16550(UART_REG_DLLS,0x03);
 	write_to_16550(UART_REG_DLMS,0x00);
 	write_to_16550(UART_REG_LCR,0x03);
-	write_to_16550(UART_REG_TXRX,'I');
-	_delay_us(10000);
-	write_to_16550(UART_REG_TXRX,'N');
-	_delay_us(10000);
-	write_to_16550(UART_REG_TXRX,'I');
-	_delay_us(10000);
-	write_to_16550(UART_REG_TXRX,'T');
-	_delay_us(10000);
-	write_to_16550(UART_REG_TXRX,'\r');
-	_delay_us(10000);
-	write_to_16550(UART_REG_TXRX,'\n');
-	_delay_us(10000);
-
-	sei();
-	/* Enable the hardware watchdog. In case the microcontroller fails to 
-	 * finish it's task within the specified time, the watchdog will reset
-	 * the atmel cookie.
-	 */
-	wdt_enable(WDTO_1S);	
-        
 	for(;;){
-		wdt_reset();
-		routine();
-        }
-
-        return 0;
-}
-
-int routine(){
-	uint8_t received = read_from_16550(UART_REG_LSR);
-
-	if(received & 0x01){
-		received = read_from_16550(UART_REG_TXRX);
-		write_to_16550(UART_REG_TXRX,received);
+		if(read_from_16550(UART_REG_LSR) & 0x01){
+			write_to_16550(UART_REG_TXRX,
+				read_from_16550(UART_REG_TXRX));
+		}
 	}

        return 0;
--- a/code/16550/transmit/src/main.c
+++ b/code/16550/transmit/src/main.c
@ -1,33 +1,16 @@
-/* Copyright © 2020 tyrolyean
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
 #define F_CPU 16000000UL

-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <avr/wdt.h>
+#include <stdint.h>
 #include <util/delay.h>
-#include <avr/interrupt.h>

-/* Shift values inside the PORTK Register */
+#define BUS_HOLD_US 1
+
+/* Shift values inside the PORTL Register */
 #define WR_SHIFT 1
 #define RD_SHIFT 2
 #define MR_SHIFT 0
 #define CS_SHIFT 3
+#define CS_ADC_SHIFT 4

 /* Registers in the 16550 UART */

@ -42,21 +25,6 @@
 #define UART_REG_MSR    6
 #define UART_REG_SCR    7

-
-uint8_t mcusr_mirror __attribute__ ((section (".noinit")));
-void get_mcusr(void) \
-  __attribute__((naked)) \
-  __attribute__((section(".init3")));
-
-void get_mcusr(void)
-{
-  mcusr_mirror = MCUSR;
-  MCUSR = 0;
-  wdt_disable();
-}
-
-int routine();
-
 void set_addr(uint8_t addr){
 	
 	PORTK = addr;
@ -67,11 +35,12 @@ void write_to_16550(uint8_t addr, uint8_t data){


 	set_addr(addr);
+	DDRF = 0xFF;
 	PORTL &= ~(1<<WR_SHIFT);
 	PORTF = data;
 	PORTL &= ~(1<<CS_SHIFT);
 	
-	_delay_us(2);	/*Wait for the data and signal lanes to become stable*/
+	_delay_us(BUS_HOLD_US);
 	
 	PORTL |= 1<<CS_SHIFT;
 	set_addr(0x00);
@ -80,6 +49,24 @@ void write_to_16550(uint8_t addr, uint8_t data){
 	return;
 }

+uint8_t read_from_16550(uint8_t addr){
+
+	uint8_t data = 0x00;
+	set_addr(addr);
+	DDRF = 0x00;
+	PORTF = 0x00;
+	PORTL &= ~(1<<RD_SHIFT);
+	PORTL &= ~(1<<CS_SHIFT);
+	_delay_us(BUS_HOLD_US);
+	data = PINF;
+	PORTL |= 1<<CS_SHIFT;
+	set_addr(0x00);
+	PORTL |= 1<<RD_SHIFT;
+	DDRF = 0xFF;
+	PORTF = 0x00;
+	_delay_us(BUS_HOLD_US);	/*Wait for the data and signal lanes to become stable*/
+	return data;
+}

 int main(){

@ -104,39 +91,16 @@ int main(){
 	PORTL &= ~(1<<MR_SHIFT);
 	_delay_us(1000);
 	
-	
-
 	sei();
-	/* Enable the hardware watchdog. In case the microcontroller fails to 
-	 * finish it's task within the specified time, the watchdog will reset
-	 * the atmel cookie.
-	 */
-	wdt_enable(WDTO_1S);	
        
 	for(;;){
-		wdt_reset();
-		routine();
-        }
-
-        return 0;
-}
-
-int routine(){
 		write_to_16550(UART_REG_LCR,0x83);
 		write_to_16550(UART_REG_DLLS,0x03);
 		write_to_16550(UART_REG_DLMS,0x00);
 		write_to_16550(UART_REG_LCR,0x03);
 		write_to_16550(UART_REG_TXRX,'A');
 		_delay_us(10000);
-	write_to_16550(UART_REG_TXRX,'B');
-	_delay_us(10000);
-	write_to_16550(UART_REG_TXRX,'!');
-	_delay_us(10000);
-	write_to_16550(UART_REG_TXRX,'\r');
-	_delay_us(10000);
-	write_to_16550(UART_REG_TXRX,'\n');
-	_delay_us(10000);
+        }

        return 0;
 }
-
--- a/code/textadv.tar.xz
+++ b/code/textadv.tar.xz
--- a/code/textadv/bin/mc.elf
+++ b/code/textadv/bin/mc.elf
--- a/code/textadv/bin/mc.hex
+++ b/code/textadv/bin/mc.hex
@ -3,7 +3,7 @@
 :100020000C94B2040C94B2040C94B2040C94B20478
 :100030000C94B2040C94B2040C94B2040C94B20468
 :100040000C94B2040C94B2040C94B2040C94B20458
-:100050000C94B2040C9477070C94B2040C94B20480
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 :100060000C94B2040C94B2040C94B2040C94B20438
 :100070000C94B2040C94B2040C94B2040C94B20428
 :100080000C94B2040C94B2040C94B2040C94B20418
@ -143,22 +143,22 @@
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 :1009800085E08A95F1F7000080818A608083CF91AD
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--- a/code/textadv/build/game.o
+++ b/code/textadv/build/game.o
--- a/code/textadv/build/main.o
+++ b/code/textadv/build/main.o
--- a/code/textadv/build/structures.o
+++ b/code/textadv/build/structures.o
--- a/code/textadv/include/avr.h
+++ b/code/textadv/include/avr.h
@ -1,4 +1,4 @@
-/* Copyright © 2020 tyrolyean
+/* Copyright (C) 2020 tyrolyean
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
--- a/code/textadv/include/game.h
+++ b/code/textadv/include/game.h
@ -18,6 +18,7 @@
 #define _GAME_H

 #include <stdint.h>
+#include <stdbool.h>

 extern char command_buffer[100];
 extern uint8_t command_buffer_pointer;
@ -28,5 +29,12 @@ void routine_game();
 void prepare_command_buffer();
 void ingest_user_char(char in);
 void perform_action(uint8_t action_id);
+void move_direction(uint8_t direction);
+void describe_room(uint8_t room, bool auto_desc);
+void print_inventory();
+void print_room_item();
+void consume_room_item();

+void use_item(const char* item_name);
+void use_item_id(uint8_t item_id);
 #endif
--- a/code/textadv/include/structures.h
+++ b/code/textadv/include/structures.h
@ -17,11 +17,13 @@
 #ifndef _STRUCTURES_H
 #define _STRUCTURES_H

+#include <sound.h>
+
 #include <stdint.h>
 #include <avr/pgmspace.h>
 #include <stdbool.h>

-#define NUM_ACTIONS      0x07
+#define NUM_ACTIONS      0x0A
 #define ACTION_HELP      0x00
 #define ACTION_NORTH     0x01
 #define ACTION_SOUTH     0x02
@ -29,6 +31,36 @@
 #define ACTION_EAST      0x04
 #define ACTION_DESCRIBE  0x05
 #define ACTION_USE       0x06
+#define ACTION_INVENTORY 0x07
+#define ACTION_SEARCH    0x08
+#define ACTION_TAKE      0x09
+
+/* The direction in the direction table is the action_id - 1  */
+#define DIRECTION_NORTH  0x00
+#define DIRECTION_SOUTH  0x01
+#define DIRECTION_WEST   0x02
+#define DIRECTION_EAST   0x03
+
+#define NUM_ROOMS        0x0A
+#define ROOM_NOTHING     0x00
+#define ROOM_LONELYROAD  0x01
+#define ROOM_SNDIRTROAD  0x02
+#define ROOM_FIREPLACE   0x03
+#define ROOM_EWSTREET    0x04
+#define ROOM_OLDHOUSE    0x05
+#define ROOM_LIVINGROOM  0x06
+#define ROOM_ATTIC       0x07
+#define ROOM_BASEMENT    0x08
+#define ROOM_COMPUTERROM 0x09
+
+#define NUM_ITEMS        0x07
+#define ITEM_FLOPPY      0x00
+#define ITEM_SCREWDRIVER 0x01
+#define ITEM_KEY         0x02
+#define ITEM_SAUSAGE     0x03
+#define ITEM_FLESH       0x04
+#define ITEM_KEYBOARD    0x05
+#define ITEM_PISTOL      0x06

 extern const uint8_t sine_table[256] PROGMEM;
 extern const uint8_t noise_table[1024] PROGMEM;
@ -36,9 +68,12 @@ extern const char* text_table[];

 extern const char* info_table[];
 extern const char* action_table[NUM_ACTIONS];
-extern const char* room_table[];
-extern const char* room_description_table[];
-extern const bool room_action_table[][NUM_ACTIONS];
-extern const char* item_table[];
-
+extern const char* room_table[NUM_ROOMS];
+extern const char* room_description_table[NUM_ROOMS];
+extern uint8_t room_map_table[NUM_ROOMS][4];
+extern bool room_visited_table[NUM_ROOMS];
+extern const char* item_table[NUM_ITEMS];
+extern bool inventory[NUM_ITEMS];
+extern int8_t item_room_map[NUM_ROOMS];
+extern const struct tone_t * room_track_map[NUM_ROOMS];
 #endif
--- a/code/textadv/src/game.c
+++ b/code/textadv/src/game.c
@ -25,7 +25,7 @@
 char command_buffer[100];
 uint8_t command_buffer_pointer = 0x00;

-uint8_t current_room = 0x00;
+uint8_t current_room = ROOM_LONELYROAD;


 void routine_game(){
@ -69,7 +69,12 @@ void routine_game(){
 }

 void ingest_user_char(char in){
+	if(in == 0x7F /* DELETE CHAR */){
+		command_buffer[command_buffer_pointer--] = 0x00;
+		
+	}else{
 		command_buffer[command_buffer_pointer++] = in;
+	}
 	return;
 }

@ -85,11 +90,141 @@ void perform_action(uint8_t action_id){
 			break;
 		
 		case ACTION_DESCRIBE:
-			println(room_table[current_room]);
-			putchar_16550('\n', NULL);
-			println(room_description_table[current_room]);
+			describe_room(current_room, false);
 			break;
+
+		case ACTION_NORTH:
+		case ACTION_SOUTH:
+		case ACTION_WEST:
+		case ACTION_EAST:
+			move_direction(action_id -1);
+			break;
+		case ACTION_INVENTORY:
+			print_inventory();
+			break;
+		case ACTION_SEARCH:
+			print_room_item();
+			break;
+		case ACTION_TAKE:
+			consume_room_item();
+			break;
+		case ACTION_USE:
+			use_item(command_buffer+
+				strlen(action_table[ACTION_USE])+1);
+			break;
+		
 	};
+	println(info_table[3]);

 	return;
 }
+
+void move_direction(uint8_t direction){
+	if(!room_map_table[current_room][direction]){
+		println(info_table[4]);
+		return;
+	}
+	println("Moving towards %s",action_table[direction+1]);
+	current_room = room_map_table[current_room][direction];
+	describe_room(current_room,true);
+	current_track = room_track_map[current_room];
+	return;
+}
+
+void describe_room(uint8_t room, bool auto_desc){
+	
+	println(room_table[room]);
+	if(room_visited_table[room] && auto_desc){
+		room_visited_table[room] = true;
+		return;
+	}
+	room_visited_table[room] = true;
+	putchar_16550('\n', NULL);
+	println(room_description_table[room]);
+	
+	return;
+}
+
+void print_inventory(){
+	bool found_item = false;
+	for(size_t i = 0; i < NUM_ITEMS; i++){
+		if(inventory[i]){
+			found_item = true;
+			break;
+		}
+	}
+	if(found_item){
+		println("You have:");
+		for(size_t i = 0; i < NUM_ITEMS; i++){
+			if(inventory[i]){
+				println("    %s",item_table[i]);
+			}
+		}
+
+	}else{
+		println("Your inventory is empty");
+	}
+	
+	return;
+}
+
+void print_room_item(){
+	if(item_room_map[current_room] < 0){
+		println(info_table[6]);
+	}else{
+		println("You found a %s", 
+			item_table[item_room_map[current_room]]);
+	}
+	return;
+}
+
+void consume_room_item(){
+	if(item_room_map[current_room] < 0){
+		println(info_table[6]);
+	}else{
+		println("You took the %s", 
+			item_table[item_room_map[current_room]]);
+		
+		inventory[item_room_map[current_room]] = true;
+		item_room_map[current_room] = -1;
+	}
+	return;
+}
+void use_item(const char* item_name){
+		
+	for(size_t i = 0; i < NUM_ITEMS; i++){
+		if(strncasecmp(item_table[i], item_name, 
+			strlen(item_table[i])) == 0){
+			use_item_id(i);
+			return;
+		}
+		
+	}
+	println(info_table[2]);
+	return;
+	
+}
+
+void use_item_id(uint8_t item_id){
+	if(!inventory[item_id]){
+		println(info_table[2]);
+		return;
+	}
+	
+	
+	switch(item_id){
+		case ITEM_SAUSAGE:
+			if(current_room == ROOM_SNDIRTROAD){
+				inventory[ITEM_SAUSAGE] = false;
+				room_map_table[current_room][DIRECTION_NORTH] =
+					ROOM_FIREPLACE;
+				println(info_table[10]);
+				return;
+			}
+			break;
+	};
+	println(info_table[2]);
+
+	return;
+}
+
--- a/code/textadv/src/main.c
+++ b/code/textadv/src/main.c
@ -84,8 +84,10 @@ int main(){
 	init_uart();
 	init_interrupts();
 	current_track = intro_track;
+	memset(room_visited_table, 0, NUM_ROOMS);
+	memset(inventory, 0, NUM_ITEMS);
+	describe_room(current_room,false);
 	sei();
-	println(room_description_table[0]);
 	/* Enable the hardware watchdog. In case the microcontroller fails to 
 	 * finish it's task within the specified time, the watchdog will reset
 	 * the atmel cookie.
--- a/code/textadv/src/structures.c
+++ b/code/textadv/src/structures.c
@ -343,22 +343,19 @@ const uint8_t noise_table[1024] PROGMEM = {
 };

 const char* info_table[] = {
-	"ERROR",
-	"Invalid command!",
-	"You can't use that!",
-	"What are you going to do?",
-	"going ",
-	"NORTH",
-	"SOUTH",
-	"EAST",
-	"WEST",
-	"YOU MAY ACT NOW!",
-	"it died",
-	"it survived",
-	"a bear blocks the way",
-	"it ran away...",
-	"it won't start",
-	"you can't type"
+	"ERROR",                     // 0
+	"Invalid command!",          // 1
+	"You can't use that!",       // 2
+	"What are you going to do?", // 3
+	"You can't go that way!",    // 4
+	"YOU MAY ACT NOW!",          // 5
+	"There is nothing here..",   // 6
+	"it died",                   // 7
+	"it survived",               // 8
+	"a bear blocks the way",     // 9
+	"it ran away...",            // 10
+	"it won't start",            // 11
+	"you can't type"             // 12
 };

 const char* action_table[NUM_ACTIONS] = {
@ -368,7 +365,10 @@ const char* action_table[NUM_ACTIONS] = {
 	"west",
 	"east",
 	"describe",
-	"use"
+	"use",
+	"inventory",
+	"search",
+	"take",
 };

 const char* room_table[] = {
@ -376,7 +376,7 @@ const char* room_table[] = {
 	"LONELY ROAD",
 	"S/N DIRT ROAD",
 	"FIREPLACE",
-	"N/W Street",
+	"E/W Street",
 	"OLD HOUSE",
 	"LIVING ROOM",
 	"ATTIC",
@ -386,12 +386,14 @@ const char* room_table[] = {

 const char* room_description_table[sizeof(room_table)/sizeof(const char*)] = {
 	"You stare into a void of nothingness. You see noone, you hear noone,"
-		"you feel someone.\n You look around, and see nothing, yet "
+		"you feel someone.\nYou look around, and see nothing, yet "
 		"you are no less scared. You have won..",
-	"LONELY ROAD",
-	"S/N DIRT ROAD",
+	"You are on the dead end of a lonely road. You look right and left of"
+	"you, but\nyou cannot remember why you are here... You are terrified.",
+	"You travel a bit towards the moon, you think that's the way to go. You"
+	" find a \nbear in the middle of the road sleeping seemingly in peace.",
 	"FIREPLACE",
-	"N/W Street",
+	"W/W STREET",
 	"OLD HOUSE",
 	"LIVING ROOM",
 	"ATTIC",
@ -399,19 +401,43 @@ const char* room_description_table[sizeof(room_table)/sizeof(const char*)] = {
 	"COMPUTER ROOM"
 };

-const bool room_action_table[sizeof(room_table)/sizeof(const char*)]
-	[NUM_ACTIONS] = {
-	{1, 1,0,0,0,1,0}
+bool room_visited_table[sizeof(room_table)/sizeof(const char*)];
+
+uint8_t room_map_table[sizeof(room_table)/sizeof(const char*)]
+	[4] = {
+	{0,0,0,0},
+	{2,0,0,0}, /* S/N DIRT ROAD */
+	{/*3*/0,1,0,0}, /* FIREPLACE, Progress locked until bear tamed */
+	{0,0,4,2}, /* E/W STREET */
 };

-const char* item_table[] = {
+const char* item_table[NUM_ITEMS] = {
 	"FLOPPY DISK",
 	"SCREW DRIVER",
 	"KEY",
 	"SAUSAGE",
-	"ROTTEN FLESH",
+	"FLESH",
 	"KEYBOARD",
 	"PISTOL"
 };

+bool inventory[sizeof(item_table)/sizeof(const char*)];

+
+int8_t item_room_map[NUM_ROOMS] = {
+	-1,
+	 6,
+	 3,
+	-1,
+	-1,
+	-1,
+	-1,
+	-1,
+	-1,
+	-1
+};
+const struct tone_t * room_track_map[NUM_ROOMS] = {
+	intro_track,
+	lonely_road_track,
+	computer_room_track
+};
--- a/main.aux
+++ b/main.aux
@ -3,7 +3,7 @@
 \providecommand\zref@newlabel[2]{}
 \bbl@beforestart
 \catcode `"\active 
-\abx@aux@refcontext{nty/global//global/global}
+\abx@aux@refcontext{none/global//global/global}
 \providecommand\HyperFirstAtBeginDocument{\AtBeginDocument}
 \HyperFirstAtBeginDocument{\ifx\hyper@anchor\@undefined
 \global\let\oldcontentsline\contentsline
@ -20,6 +20,7 @@
 \gdef\HyperFirstAtBeginDocument#1{#1}
 \providecommand*\HyPL@Entry[1]{}
 \HyPL@Entry{0<</S/D>>}
+\babel@aux{english}{}
 \@writefile{toc}{\boolfalse {citerequest}\boolfalse {citetracker}\boolfalse {pagetracker}\boolfalse {backtracker}\relax }
 \@writefile{lof}{\boolfalse {citerequest}\boolfalse {citetracker}\boolfalse {pagetracker}\boolfalse {backtracker}\relax }
 \@writefile{lot}{\boolfalse {citerequest}\boolfalse {citetracker}\boolfalse {pagetracker}\boolfalse {backtracker}\relax }
@ -31,12 +32,90 @@
 \babel@aux{ngerman}{}
 \babel@aux{ngerman}{}
 \@writefile{toc}{\contentsline {section}{Projektergebnis}{iii}{Doc-Start}\protected@file@percent }
+\babel@aux{english}{}
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--- a/main.bbl
+++ b/main.bbl
@ -0,0 +1,57 @@
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+% $ biblatex bbl format version 3.1 $
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+%
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+
+\refsection{0}
+  \datalist[entry]{none/global//global/global}
+    \entry{pc16550}{manual}{}
+      \list{organization}{1}{%
+        {Texas Instruments Inc.}%
+      }
+      \field{sortinit}{1}
+      \field{sortinithash}{50c6687d7fc80f50136d75228e3c59ba}
+      \field{labeltitlesource}{title}
+      \field{title}{PC16550D Universal Asynchronous Receiver/Transmitter With FIFOs}
+      \field{year}{1995}
+      \verb{urlraw}
+      \verb https://www.scs.stanford.edu/10wi-cs140/pintos/specs/pc16550d.pdf
+      \endverb
+      \verb{url}
+      \verb https://www.scs.stanford.edu/10wi-cs140/pintos/specs/pc16550d.pdf
+      \endverb
+    \endentry
+    \entry{max232}{manual}{}
+      \list{organization}{1}{%
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+      }
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+      \field{sortinithash}{a37a8ef248a93c322189792c34fc68c9}
+      \field{labeltitlesource}{title}
+      \field{title}{MAX232x Dual EIA-232 Drivers/Receivers}
+      \field{year}{1989}
+      \verb{urlraw}
+      \verb https://www.ti.com/lit/ds/symlink/max232.pdf
+      \endverb
+      \verb{url}
+      \verb https://www.ti.com/lit/ds/symlink/max232.pdf
+      \endverb
+    \endentry
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+\babel@toc {english}{}
+\contentsline {figure}{\numberline {1}{\ignorespaces Atari PBI Pinout;Source: \url {https://www.atarimagazines.com}\relax }}{2}{figure.caption.1}% 
+\contentsline {figure}{\numberline {2}{\ignorespaces Digilent Analog Discovery 2;Source: \url {https://www.sparkfun.com/}\relax }}{4}{figure.caption.2}% 
+\contentsline {figure}{\numberline {3}{\ignorespaces Layout of the DIN41612 Connectors on the Backplane\relax }}{5}{figure.caption.3}% 
+\contentsline {figure}{\numberline {4}{\ignorespaces Measurement at around 1MHz bus clock on MS1\relax }}{6}{figure.caption.4}% 
+\contentsline {figure}{\numberline {5}{\ignorespaces The case with installed backplane\relax }}{7}{figure.caption.5}% 
+\contentsline {figure}{\numberline {6}{\ignorespaces PC-16550D Pinout\cite {pc16550}\relax }}{8}{figure.caption.6}% 
+\contentsline {figure}{\numberline {7}{\ignorespaces The schematic of the UART Module\relax }}{10}{figure.caption.7}% 
+\contentsline {figure}{\numberline {8}{\ignorespaces Measurement of the 1.8432 MHz Output on J1\relax }}{11}{figure.caption.8}% 
+\contentsline {figure}{\numberline {9}{\ignorespaces Measurement of a character transmission before and after MAX-232\relax }}{12}{figure.caption.9}% 
+\contentsline {figure}{\numberline {10}{\ignorespaces Pinout of the RJ-45 Plug; Src: \url {https://www.wti.com/}\relax }}{12}{figure.caption.10}% 
+\contentsline {figure}{\numberline {11}{\ignorespaces Measurement of a character echo\relax }}{13}{figure.caption.11}% 
+\contentsline {figure}{\numberline {12}{\ignorespaces Transmission of character A via the 16550 UART\relax }}{16}{figure.caption.12}% 
+\babel@toc {ngerman}{}
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 \babel@toc {ngerman}{}
 \babel@toc {ngerman}{}
 \babel@toc {ngerman}{}
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+\contentsline {lstlisting}{\numberline {1}Read and write routines for the 16550 UART}{13}{lstlisting.1}% 
+\contentsline {lstlisting}{\numberline {2}16550 INIT routines and single char transmission}{15}{lstlisting.2}% 
+\contentsline {lstlisting}{\numberline {3}16550 character echo}{16}{lstlisting.3}% 
+\contentsline {lstlisting}{\numberline {4}The avr.h header file}{18}{lstlisting.4}% 
+\babel@toc {ngerman}{}
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 \babel@toc {ngerman}{}
 \babel@toc {ngerman}{}
 \babel@toc {ngerman}{}
 \babel@toc {ngerman}{}
+\babel@toc {english}{}
+\babel@toc {ngerman}{}
+\babel@toc {english}{}
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--- a/main.pdf
+++ b/main.pdf
--- a/main.run.xml
+++ b/main.run.xml
@ -55,9 +55,9 @@
      <file>blx-compat.def</file>
      <file>biblatex.def</file>
      <file>standard.bbx</file>
-      <file>authortitle.bbx</file>
-      <file>verbose.bbx</file>
-      <file>authoryear-ibid.cbx</file>
+      <file>numeric.bbx</file>
+      <file>numeric-comp.cbx</file>
+      <file>ieee.cbx</file>
      <file>biblatex.cfg</file>
      <file>german.lbx</file>
      <file>ngerman.lbx</file>
@ -82,5 +82,8 @@
    <requires type="dynamic">
      <file>main.bcf</file>
    </requires>
+    <requires type="editable">
+      <file>./bibliographies/DP.bib</file>
+    </requires>
  </external>
 </requests>
--- a/main.tex
+++ b/main.tex
@ -83,19 +83,23 @@ des generischen Maskulinums angewendet. Es wird an dieser Stelle darauf
 hingewiesen, dass die ausschlie"sliche Verwendung der m"annlichen Form
 geschlechtsunabh"angig verstanden werden soll. 

+This thesis is written in the language form if the generic masculin for improved
+readability. It is pointed out that all masculin-only uses may and should be
+interpreted as gender neutral.
+
 %====================================================================================
 \clearpage\vfill\newpage{}
 %====================================================================================
 \subsection*{Kurzfassung/Abstract\markboth{}{Kurzfassung/Abstract}}
 \addcontentsline{toc}{section}{Kurzfassung/Abstract}
 \input{sections/abstract.tex}
-
 \newpage
 \subsection*{Projektergebnis\markboth{}{Projektergebnis}}
 \addcontentsline{toc}{section}{Projektergebnis}
 %\input{sections/ergebnis.tex} TODO
 %====================================================================================
 \pagestyle{plain}
+\selectlanguage{english}
 \tableofcontents
 \newpage
 \pagestyle{fancy}
@ -109,15 +113,22 @@ geschlechtsunabh"angig verstanden werden soll.
 %\section{Einleitung}
 %\input{sections/einleitung.tex} TODO

-\section{Aufgabenstellung}
+\section{Task description}
 \DP\input{planung/DP/aufgabenstellung.tex}

 %\section{Planung}
 %\DP\input{planung/DP/planung.tex}

 \clearpage
-% \MR\input{sections/Kapitel/MR/planungAufgabengenerator.tex}
+\pagestyle{fancy}
+\section{Hardware peripherials}
+\DP\input{sections/DP/PARALLELBUS/main.tex}
+\DP\input{sections/DP/MEAS_TEST/main.tex}
+\DP\input{sections/DP/CASE_BACKPLANE/main.tex}
+\DP\input{sections/DP/UART/main.tex}

+\section{Textadventure}
+\DP\input{sections/DP/textadv/main.tex}
 \clearpage
 %\MR\input{sections/Kapitel/MR/Aufgabengeneration.tex}

@ -127,6 +138,7 @@ geschlechtsunabh"angig verstanden werden soll.

 %====================================================================================
 \allAuth
+\selectlanguage{ngerman}
 \clearpage\vfill\newpage{}
 %====================================================================================
 \section{Erkl"arung der Eigenst"andigkeit der Arbeit}
@ -160,12 +172,13 @@ geschlechtsunabh"angig verstanden werden soll.
 \clearpage\vfill\newpage{}
 \pagenumbering{Roman}
 %====================================================================================
+\selectlanguage{english}
 \renewcommand{\thesection}{\Roman{section}\;}
 \setcounter{section}{0}
 \listoffigures\thispagestyle{fancy}
 \listoftables\thispagestyle{fancy}
 \lstlistoflistings\thispagestyle{fancy}
-\printbibliography[title={Literaturverzeichnis},heading=bibnumbered]
+\printbibliography[title={Literaturverzeichnis}]

 %====================================================================================
 \clearpage\vfill\newpage{}
--- a/main.toc
+++ b/main.toc
@ -1,3 +1,4 @@
+\babel@toc {english}{}
 \boolfalse {citerequest}\boolfalse {citetracker}\boolfalse {pagetracker}\boolfalse {backtracker}\relax 
 \babel@toc {ngerman}{}
 \babel@toc {ngerman}{}
@ -6,10 +7,38 @@
 \babel@toc {ngerman}{}
 \babel@toc {ngerman}{}
 \contentsline {section}{Projektergebnis}{iii}{Doc-Start}% 
-\contentsline {section}{\numberline {1}Aufgabenstellung}{1}{section.1}% 
-\contentsline {subsection}{\numberline {1.1}Daniel Plank}{1}{subsection.1.1}% 
-\contentsline {section}{\numberline {2}Erkl"arung der Eigenst"andigkeit der Arbeit}{2}{section.2}% 
-\contentsline {section}{\numberline {I\tmspace +\thickmuskip {.2777em}}Abbildungsverzeichnis}{I}{section.1}% 
-\contentsline {section}{\numberline {II\tmspace +\thickmuskip {.2777em}}Tabellenverzeichnis}{I}{section.2}% 
+\babel@toc {english}{}
+\contentsline {section}{\numberline {1}Task description}{1}{section.1}% 
+\contentsline {subsection}{\numberline {1.1}Hardware}{1}{subsection.1.1}% 
+\contentsline {section}{\numberline {2}Hardware peripherials}{2}{section.2}% 
+\contentsline {subsection}{\numberline {2.1}Parallel bus}{2}{subsection.2.1}% 
+\contentsline {subsubsection}{\numberline {2.1.1}Address Bus}{2}{subsubsection.2.1.1}% 
+\contentsline {subsection}{\numberline {2.2}Data Bus}{3}{subsection.2.2}% 
+\contentsline {subsection}{\numberline {2.3}Control Bus}{3}{subsection.2.3}% 
+\contentsline {subsubsection}{\numberline {2.3.1}Master Reset}{3}{subsubsection.2.3.1}% 
+\contentsline {subsubsection}{\numberline {2.3.2}Write Not}{3}{subsubsection.2.3.2}% 
+\contentsline {subsubsection}{\numberline {2.3.3}Read Not}{3}{subsubsection.2.3.3}% 
+\contentsline {subsubsection}{\numberline {2.3.4}Module Select 1 and 2 Not}{3}{subsubsection.2.3.4}% 
+\contentsline {subsection}{\numberline {2.4}Testing and Measurement}{4}{subsection.2.4}% 
+\contentsline {subsubsection}{\numberline {2.4.1}Measurements}{4}{subsubsection.2.4.1}% 
+\contentsline {subsubsection}{\numberline {2.4.2}Testing}{4}{subsubsection.2.4.2}% 
+\contentsline {subsection}{\numberline {2.5}Backplane}{5}{subsection.2.5}% 
+\contentsline {subsubsection}{\numberline {2.5.1}Termination resistors}{5}{subsubsection.2.5.1}% 
+\contentsline {subsection}{\numberline {2.6}Case}{6}{subsection.2.6}% 
+\contentsline {subsection}{\numberline {2.7}Serial Console}{8}{subsection.2.7}% 
+\contentsline {subsubsection}{\numberline {2.7.1}16550 UART}{8}{subsubsection.2.7.1}% 
+\contentsline {subsubsection}{\numberline {2.7.2}MAX-232}{9}{subsubsection.2.7.2}% 
+\contentsline {subsubsection}{\numberline {2.7.3}Schematics}{9}{subsubsection.2.7.3}% 
+\contentsline {paragraph}{Element Description}{11}{figure.caption.7}% 
+\contentsline {subsubsection}{\numberline {2.7.4}Demonstration Software}{13}{subsubsection.2.7.4}% 
+\contentsline {paragraph}{Transmit code}{13}{figure.caption.11}% 
+\contentsline {paragraph}{Echo code}{16}{figure.caption.12}% 
+\contentsline {section}{\numberline {3}Textadventure}{17}{section.3}% 
+\contentsline {subsection}{\numberline {3.1}General Implementation details}{18}{subsection.3.1}% 
+\babel@toc {ngerman}{}
+\contentsline {section}{\numberline {4}Erkl"arung der Eigenst"andigkeit der Arbeit}{20}{section.4}% 
+\babel@toc {english}{}
+\contentsline {section}{\numberline {I\tmspace +\thickmuskip {.2777em}}List of Figures}{I}{section.1}% 
+\contentsline {section}{\numberline {II\tmspace +\thickmuskip {.2777em}}List of Tables}{I}{section.2}% 
 \contentsline {section}{\numberline {III\tmspace +\thickmuskip {.2777em}}Listings}{I}{section.3}% 
 \contentsline {section}{Anhang}{II}{section.3}% 
--- a/meas/20200218echo.csv
+++ b/meas/20200218echo.csv
--- a/meas/20200218ttluart.csv
+++ b/meas/20200218ttluart.csv
--- a/meas/20200319reflexions.csv
+++ b/meas/20200319reflexions.csv
--- a/meas/20200319reflexions.png
+++ b/meas/20200319reflexions.png
--- a/meas/20200319uartquartz.csv
+++ b/meas/20200319uartquartz.csv
@ -0,0 +1,434 @@
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--- a/meas/20200319uartquartz.png
+++ b/meas/20200319uartquartz.png
--- a/pics/ad2.jpg
+++ b/pics/ad2.jpg
--- a/pics/atari_pbi.png
+++ b/pics/atari_pbi.png
--- a/pics/case.jpg
+++ b/pics/case.jpg
--- a/pics/pc16550d_pinout.svg
+++ b/pics/pc16550d_pinout.svg
--- a/pics/rj45-consoleport-iface-500.png
+++ b/pics/rj45-consoleport-iface-500.png
--- a/planung/DP/aufgabenstellung.tex
+++ b/planung/DP/aufgabenstellung.tex
@ -1,2 +1,20 @@
-\subsection{Daniel Plank}
+\subsection{Hardware}
+
+Due to the recurring questions in the environment of the Hackerspace Innsbruck
+about the internal workings of a computer system and the lack of material to
+demonstrate these, hardware should be developed for educational purposes.
+This hardware should not be to complex to understand but still demonstrate basic
+tasks of a computer system. The targeted computing tasks are human interface
+device controllers, under which a \textbf{D}igital to \textbf{A}nalog 
+\textbf{C}onverter\footnote{From now on reffered to simply as DAC} and a serial
+console with TIA-/EIA-232 compliant voltage levels were chosen. For these
+peripherials schematics and a working implementation in the hardware building
+style of the hackerspace should be built. All nescessary hardware will be
+provided by the Hackerspace. If possible already present hardware should be
+used, if impossible new one will be ordered. All schematics should, whenether
+possible be written in open-source software such as Kicad or GNU-EDA.
+
+If possible software-examples should be written as well, though the complexity
+of these was coupled to the time left to spend on the project. Software should
+be written in C, the coding convention is left to the implementer.

--- a/preamble.tex
+++ b/preamble.tex
@ -15,10 +15,10 @@

 \usepackage[utf8]{inputenc}
 \usepackage[english,ngerman,]{babel}
+\selectlanguage{english}
 \usepackage[OT2,T1]{fontenc}

 \usepackage{svg} % Allows the inclusion of SVG files
-
 \usepackage{amssymb}
 \usepackage{ulem}
 \usepackage{amsmath}
@ -131,9 +131,9 @@
 \makeindex

 %%% BibLaTeX settings
-\usepackage[style = verbose, dashed=false, citestyle = authoryear-ibid, maxcitenames=1]{biblatex}
+\usepackage[citestyle = ieee]{biblatex}
 \usepackage{csquotes}
-%\addbibresource{./bibliographies/MR.bib}
+\addbibresource{./bibliographies/DP.bib}
 \DeclareNameAlias{sortname}{family-given}
 \renewcommand\multinamedelim{;\ }
 \renewcommand\finalnamedelim{;\ }
@ -174,7 +174,7 @@ minimum height=1cm, align=center, text width=3cm, draw=black, fill=blue!30]
 \tikzstyle{process} = [rectangle, minimum width=3cm, minimum height=1cm, align=center, text width=3cm, draw=black, fill=orange!30]
 \tikzstyle{decision} = [diamond, minimum width=3cm, minimum height=1cm, align=center, text width=3cm, draw=black, fill=green!30]
 \tikzstyle{arrow} = [thick,->,>=latex]
-
+\usetikzlibrary{external}
 \usepackage[european, straightvoltages]{circuitikz}
 \usepackage[per-mode=fraction]{siunitx}
 \usepackage{breqn}	
@ -303,16 +303,17 @@ minimum height=1cm, align=center, text width=3cm, draw=black, fill=blue!30]
    keywordstyle=\color{red},
    numberstyle=\tiny\color{codegray},
    stringstyle=\color{purple},
-    basicstyle=\ttfamily,
+    basicstyle=\ttfamily\footnotesize,
    breakatwhitespace=false,
    breaklines=true,
    captionpos=b,
    keepspaces=true,
    numbers=left,
+    columns=fixed,
    showspaces=false,
    showstringspaces=false,
    showtabs=false,
-    tabsize=2
+    tabsize=4
 }

 \lstdefinelanguage{json}{
--- a/schem_pdf/16550.pdf
+++ b/schem_pdf/16550.pdf
--- a/schem_pdf/backplane_conn.pdf
+++ b/schem_pdf/backplane_conn.pdf
--- a/sections/DP/CASE_BACKPLANE/main.tex
+++ b/sections/DP/CASE_BACKPLANE/main.tex
@ -0,0 +1,58 @@
+\subsection{Backplane}
+
+To connect the modules to the microprocessor, many pins need to be connected
+straight through. For this purpose a backplane was chosen where DIN41612
+connectors can be used. These connectors were chosen for their large pin count
+(96 pins) and their availability. The backplane connects all 96-pins straight
+through. With the 6 outer left and right pins connected for VCC and ground,
+as can be seen in figure \ref{fig:schem_back_conn}.
+
+\begin{figure}[H]
+	\includegraphics[width=\textwidth, angle=0]{schem_pdf/backplane_conn.pdf}
+	\caption{Layout of the DIN41612 Connectors on the Backplane}
+	\label{fig:schem_back_conn}
+\end{figure}
+
+\subsubsection{Termination resistors}
+
+In constrast to other systems using this backplane, no termination resistors
+were used. This makes the bus more prone to refelctions, however these were not
+a problem during development with the maximum transmission rate of 1MHz, as can
+be seen in the sample recording in figure \ref{fig:reflex}
+
+\begin{figure}[H]
+\begin{tikzpicture}
+	\begin{axis}[
+		ylabel=Voltage on MS1,
+		xlabel=Time,
+		grid=both,
+		xmin = -0.000001,
+		xmax = 0.000002,
+		minor tick num=5,
+		width=\textwidth,
+		height=0.25\textheight] 
+		
+		\addplot table [x=t, y=c1, col sep=comma, mark=none] {meas/20200319reflexions.csv};
+	\end{axis}
+	\end{tikzpicture}
+	\caption{Measurement at around 1MHz bus clock on MS1}
+	\label{fig:reflex}
+\end{figure}
+
+The ripple  seen in figure \ref{fig:reflex} are most likely due to
+the sample rate of the Oszilloscope, which is around 10Mhz after an average
+filter has been applied. The measurement was performed on the finished project,
+with all cards installed.
+
+\subsection{Case}
+
+The case for the backplane was provided by the hackerspace, and is meant for
+installation in a rack. The case is meant for installation of cards in the
+EUROCARD format, therfore all modules were built by this formfactor.
+
+\begin{figure}[H]
+	\includegraphics[width=\textwidth, angle=0]{pics/case}
+	\caption{The case with installed backplane}
+	\label{fig:case}
+\end{figure}
+
--- a/sections/DP/MEAS_TEST/main.tex
+++ b/sections/DP/MEAS_TEST/main.tex
@ -0,0 +1,31 @@
+\subsection{Testing and Measurement}
+
+For functional testing and verification of implementation goals, measurements
+needed to be performed invarious different ways and testing software was
+required.
+
+\subsubsection{Measurements}
+
+Measurements were performed, if not noted otherwise, with the Analog Discovery
+2 from Digilent as it has 16bit digital I/O Pins as well a a Waveform generator
+and 2 differential oszilloscope inputs. These were for all nescessary
+measurements enough. Though due to the size and construction of the device,
+which can be seen in figure \ref{fig:ad2}
+errors wer encountered while performing the measurements. These are noted on 
+occurance.
+
+\begin{figure}[H]
+	\centering
+	\includegraphics[width=.6\textwidth, angle=0]{pics/ad2}
+	\caption{Digilent Analog Discovery 2;Source: \url{https://www.sparkfun.com/}}
+	\label{fig:ad2}
+\end{figure}
+
+\subsubsection{Testing}
+
+All testing was performed with an Atmel ATMega2560 due to it's large amount
+of I/O pins, 5V I/O which is the more common voltage level on CMOS
+peripherials, way of addressing pins (8 at a time) and availability. All 
+testing software was written for this ATMega and compiled using the avr-gcc 
+from the GNU-Project.
+
--- a/sections/DP/PARALLELBUS/main.tex
+++ b/sections/DP/PARALLELBUS/main.tex
@ -1 +1,75 @@
-\
+\subsection{Parallel bus}
+
+The core part of the hardware is the interface between the microprocessor and
+the hardware peripherials. This bus is delivering data in parallel and is
+therefore named the ``parallel bus``.  This bus has 3 different sub-parts:
+
+\begin{enumerate}
+	\item{The address bus}
+	\item{The data bus}
+	\item{The control bus}
+\end{enumerate}
+
+This split is common in many computer architectures and bus systems used by
+various microprocessor manufacturers. In figure \ref{fig:atari_pbi} the
+layout of the Atari Parallel Bus Interface is shown as used on the Atari 800XL.
+
+\begin{figure}[H]
+	\includegraphics[width=\textwidth, angle=0]{pics/atari_pbi}
+	\caption{Atari PBI Pinout;Source: \url{https://www.atarimagazines.com}}
+	\label{fig:atari_pbi}
+\end{figure}
+
+\subsubsection{Address Bus}
+
+The address bus contains the nescessary data lines for addressing the individual
+registers of the Serial connection and the uart. On any modern system this bus
+is from 16 to 64 bits wide. For our implementation the bus size was chosen to
+be 8 bit, which is multiple times the amount of needed address space, but 
+is the smallest addressable unit on most microcontroller architectures and
+therefore easy to program with. The address bus is unidirectional.
+
+\subsection{Data Bus}
+
+The data bus contains the actual data to be stored to and read from registers.
+The data bus is, as well on most systems a multiple of 16 bits wide, but for the
+same reasons as the data bus, was shrunk down in our case to 8 bits. The data
+bus is bidirectional.
+
+\subsection{Control Bus}
+
+Control bus is a term which referes to any control lines (such as read and write
+lines or clock lines)  which are neither address nor data bus. The control bus
+in our case needed to be 5 bits wide and consists of:
+
+\begin{itemize}
+	\item{$MR$ ... Master Reset}
+	\item{$\lnot WR$ ... Write Not}
+	\item{$\lnot RD$ ... Read Not}
+	\item{$\lnot MS1$ ... Module Select 1 Not}
+	\item{$\lnot MS2$ ... Module Select 2 Not}
+\end{itemize}
+
+\subsubsection{Master Reset}
+
+A high level on the $MR$ lane signals to the peripherials that a reset of all
+registers and states should occure. This is needed for the serial console and
+the dac.
+
+\subsubsection{Write Not}
+A low level on the $\lnot WR$ lane signals the corresponding modules that the 
+data on
+the data bus should be written to the register on the address specified from the
+address bus.
+
+\subsubsection{Read Not}
+A low level on the $\lnot RD$ lane signals the corresponding modules that the 
+data
+from the register specified by the address on the address bus should be written
+to the data bus.
+
+\subsubsection{Module Select 1 and 2 Not}
+
+A low level on one of these lines signals the corresponding module that the
+data on address data and the control lines is meant for it.
+
--- a/sections/DP/UART/main.tex
+++ b/sections/DP/UART/main.tex
@ -0,0 +1,200 @@
+\subsection{Serial Console}
+
+One core part of any computer systems is it's way to get human input. On older
+systems, and even today on server machines, this is done via a serial console.
+On this serial console, characters are transmitted in serial, which means bit
+by bit over the same line. The voltage levels used in these systems vary from
+5V to 3.3V or +-10V. The most common standart for these voltage levels is the
+former RS-232\footnote{RS... Recommended Standard} or as it should be called
+now TIA-\footnote{TIA...Telecommunications Industry 
+Association}/EIA-\footnote{EIA.. Electronic Industries Alliance}232. Voltage-
+levels as per TIA-/EIA Standard are not practical to handle over short
+distances to handle however, so other voltages are used on most interface chips
+and need to be converted.
+
+\subsubsection{16550 UART}
+
+The 16550 UART\footnote{Uinversal Asynchronous Receiver and Transmitter} is a
+very common interface chip for serial communications. It produces 5V logic
+levels as output on TX and needs the same as input on RX. Thoug common for a
+UART, these voltage levels need to be converted to TIA-/EIA-232 levels for a
+more common interface.
+
+The 16550 UART is, in it's core a 16450 UART, but has been given a FIFO
+\footnote{First-In First-Out} buffer. It needs three address lines, and 8
+data lines, which can be seen in figure \ref{fig:16550_pinout}
+
+\begin{figure}[H]
+	\centering
+	\includesvg[height=.3\textheight, angle=0]{pics/pc16550d_pinout.svg}
+	\caption{PC-16550D Pinout\cite{pc16550}}
+	\label{fig:16550_pinout}
+\end{figure}
+
+In figure \ref{fig:16550_pinout} the most important lanes are the SIN and
+sout lanes, as they contain the serial data to and from the 16550 UART.
+
+\subsubsection{MAX-232}
+
+To convert the voltage levels of the 16550 UART to levels compliant wit
+TIA-/EIA-232 levels, the MAX-232 is used. It has two transmitters and two
+receivers side and generates the needed voltage levels via an internal voltage
+pump\cite{max232}.
+
+\subsubsection{Schematics}
+Based on the descriptions in the datasheets the schematic in figure 
+\ref{fig:schem_uart} was developed.
+
+\begin{figure}[H]
+	\centering
+	\includegraphics[height=.65\textheight, angle=-90]{schem_pdf/16550.pdf}
+	\caption{The schematic of the UART Module}
+	\label{fig:schem_uart}
+\end{figure}
+
+\paragraph{Element Description}
+
+The quartz oszillator Y1 is the clock source for the Baud Rate generation and
+was chosen with 1.8432 MHz for availability reasons and because it is the lowest
+ozillator from which all common baud rates can still be derived from
+\cite{pc16550}.
+Resistors R1 and R2 are for stability and functionality of the Oszillator
+nescessary as per datasheet. The resulting frequency can bemeasured via
+J1, the measurement can be seen in \ref{fig:uartquartz}. C1 is used to 
+stabilize the
+voltage for the 16550 UART and is common practice. Via JP1 the UART can be
+transformed into a USRT where the receiver is synchronized to the transmitter
+via a clock line. This mode has, however, not been tested, and the clock needs
+to be 16 times the receiver clock rate\cite{pc16550}. The final output of the
+16550 UART can be used and measured via J2, as shown in figure \ref{fig:uart232}
+. Before the UART on J2 can be use however, the Jumpers JP2 and JP3 need to be
+removed as otherwise the MAX-232 will short out with the incoming signal.
+capacitors C4, C6, C7, C7 and C8 are for the voltage pump as defined in the
+datasheet\cite{max232}. R4 and R5 have been suggested by the supervisor in 
+order toavoid damage to the MAX-232. The RJ-45 plug is used to transmit the
+TIA-/EIA-232 signal, rather than the more common D-SUB connector, because the
+RJ-45 connector fits on a 2.54mm grid. The Pinout onthe RJ-45 plug can be seen
+in figure \ref{fig:rs232rj45}. C5 has the same functionality for the
+MAX-232 as the C1 has to the 16550-UART.
+
+\begin{figure}[H]
+\begin{tikzpicture}
+	\begin{axis}[
+		ylabel=Quartz Voltage,
+		xlabel=Time,
+		grid=both,
+		minor tick num=5,
+		width=\textwidth,
+		height=0.5\textheight] 
+		
+		\addplot table [x=t, y=c1, col sep=comma, mark=none] {meas/20200319uartquartz.csv};
+	\end{axis}
+	\end{tikzpicture}
+	\caption{Measurement of the 1.8432 MHz Output on J1}
+	\label{fig:uartquartz}
+\end{figure}
+
+\begin{figure}[H]
+\begin{tikzpicture}
+	\begin{axis}[
+		ylabel=Lane Voltage,
+		xlabel=Time,
+		grid=both,
+		minor tick num=5,
+		width=\textwidth,
+		height=0.5\textheight] 
+		
+		\addplot table [x=t, y=c1, col sep=comma, mark=none] {meas/20200218ttluart.csv};
+		\addplot table [x=t, y=c2, col sep=comma, mark=none] {meas/20200218ttluart.csv};
+		\legend{TIA-/EIA-232 level,UART level}
+	\end{axis}
+	\end{tikzpicture}
+	\caption{Measurement of a character transmission before and after MAX-232}
+	\label{fig:uart232}
+\end{figure}
+
+\begin{figure}[H]
+	\centering
+	\includegraphics[width=\textwidth, angle=0]{pics/rj45-consoleport-iface-500.png}
+	\caption{Pinout of the RJ-45 Plug; Src: \url{https://www.wti.com/}}
+	\label{fig:rs232rj45}
+\end{figure}
+
+\subsubsection{Demonstration Software}
+
+To demonstrate the functionality and prove, that the schematic has no underlying
+error, a program which regularly transmits a character was written as well as
+a simple echo program, which transmits all received characters. Both programs
+transmit 8 bit characters without parity at 38400 Baud. The output for program
+one can be seen in figure \ref{fig:uart232} and the output for program two in
+figure \ref{fig:232_echo}. 
+
+\begin{figure}[H]
+\begin{tikzpicture}
+	\begin{axis}[
+		ylabel=Lane Voltage,
+		xlabel=Time,
+		grid=both,
+		minor tick num=5,
+		width=\textwidth,
+		height=0.5\textheight] 
+		
+		\addplot table [x=t, y=c1, col sep=comma, mark=none] {meas/20200218echo.csv};
+		\addplot table [x=t, y=c2, col sep=comma, mark=none] {meas/20200218echo.csv};
+		\legend{RX,TX}
+	\end{axis}
+	\end{tikzpicture}
+	\caption{Measurement of a character echo}
+	\label{fig:232_echo}
+\end{figure}
+
+\paragraph{Transmit code}
+The transmit code regularly transmits the letter capital A  via the 16550 UART,
+but before it can do this it needs to perform some initialisations. The
+functions shown in listing \ref{lst:16550-general} are the read and write
+routines for accessing the 16550 UART. These routines also apply to the echo
+code. 
+\lstinputlisting[language=C,frame=trBL,
+	breaklines=true, breakautoindent=true, formfeed=\newpage,
+	label={lst:16550-general}, caption={Read and write routines for the 
+		16550 UART},
+	columns=flexible, style=cstyle, firstline=0, lastline=69]
+		{code/16550/transmit/src/main.c}
+To write to the 16550 UART, you need to perform some setup tasks. After startup,
+it requires a $MR$ for at least 5µs\cite{pc16550}. The baud rate divisor latch 
+needs to be set to the specified divisor for the desired
+baud rate, and the character width and parity control
+needs to be set. The $MR$ signal is beeing generated by the AVR on bootup. To
+access the divisor latch, the divisor latch access bit needs to be set and
+after setting up the baud rate divisor latch, it nees to be cleared to allow
+a regular transmission. This process can be seen in listing \ref{lst:16550-transmit}
+\lstinputlisting[language=C,frame=trBL,
+	breaklines=true, breakautoindent=true, formfeed=\newpage,
+	label={lst:16550-transmit}, caption={16550 INIT routines and single char transmission},
+	columns=flexible, style=cstyle, firstline=71, lastline=106]
+		{code/16550/transmit/src/main.c}
+
+The output of this code on the address, data and control bus as well as on the
+SOUT lane of the 16550 UART can be seen in figure  \ref{fig:16550A}
+
+\begin{figure}[H]
+	\centering
+	\includegraphics[width=\textwidth, angle=0]{meas/20200211_first_trans.png}
+	\caption{Transmission of character A via the 16550 UART}
+	\label{fig:16550A}
+\end{figure}
+
+\paragraph{Echo code}
+
+The echo code permanently polls the 16550 UART wether a character has been
+received, and if yes, reads it from the receiver holding register andwrites it
+back to the tx holding register. The output of this code can be seen in figure
+\ref{fig:232_echo}. The initialisation is practically the same as for the
+transmission code, as well as the read and write routines in listing 
+\ref{lst:16550-general}.
+
+\lstinputlisting[language=C,frame=trBL,
+	breaklines=true, breakautoindent=true, formfeed=\newpage,
+	label={lst:16550-echo}, caption={16550 character echo},
+	columns=flexible, style=cstyle, firstline=76, lastline=109]
+		{code/16550/echo/src/main.c}
--- a/sections/DP/textadv/main.tex
+++ b/sections/DP/textadv/main.tex
@ -0,0 +1,25 @@
+To illustrate how the components work together and can be used in various
+different applications, a small text-adventure with audio effects was written in
+C. The main goal was to show the capabilities of even small systems like the
+one developed.
+
+\subsection{General Implementation details}
+
+Like the before examples, the textadventure was implemented on an ATMega2560
+and uses 3 different Registers for transmission: PORTF, PORTK and PORTL for
+address bus, data bus and control bus respectively, as can be seen in listing
+\ref{lst:textadv-avr.h}
+
+\lstinputlisting[language=C,frame=trBL,
+	breaklines=true, breakautoindent=true, formfeed=\newpage,
+	label={lst:textadv-avr.h}, caption={The avr.h header file},
+	columns=flexible, style=cstyle]{./code/textadv/include/avr.h}
+
+The in listing \ref{lst:textadv-avr.h} shown defines MR_SHIFT, WR_SHIFT,
+RD_SHIFT, CS_UART_SHIFT and CS_DAC_SHIFT are used to indicate the position of
+the corresponding control lines inside the control bus register. All other
+shift values are the same bitordering in input as in output.
+
+The BUS_HOLD_US is used to tell the avr how many microsecons it takes for the
+data bus to be latched into input register of the devices on write or how long
+it takes for the data bus to become stable on read.
--- a/sections/texput.log
+++ b/sections/texput.log
@ -0,0 +1,21 @@
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