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Audio ADC and DAC for laboratory measurements
Raszka, Dan ; Frýza, Tomáš (referee) ; Kratochvíl, Tomáš (advisor)
This paper describes the design of a laboratory equipment to demonstrate the influence of the sampling frequency and quantization errors on converter. Part of this work is to select appropriate ADC and DAC along with control microprocessor. The proposal contains other functional blocks such as analog input and output filters, LCD display and controls. It deals also with the design of software solutions to control and signal processing.
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I2C Bus to RS232 Bus Convertor
Votava, Martin ; Marvan, Aleš (referee) ; Orság, Filip (advisor)
The main goal of this Bachelor's thesis is to create I2C bus to RS232 bus convertor. Using I2C bus the convertor drives 8bit I/O expander. In theoretical part buses I2C and RS232 are described along with PCF8574. There is also mentioned selection appropriate microcontroler and design of comunication protocol. Practical part is dedicated to creating control program for microcontroler, appropriate comunication protocol processing and convertor testing. There are also described some auxiliary products and program testing.
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Transformation of Equation Editor Expressions to LaTeX
Šimek, Jiří ; Jirák, Ota (referee) ; Křivka, Zbyněk (advisor)
The bachelor thesis deals with the problem of transformation of Equation editor expressions to LaTeX. It presents description of Equation editor expressions in Word 2007, it subsequently focuses on the syntax of particular expressions and it suggests the ways of their transformation into LaTeX. The grammar, which was used for the implementation of the converter, is designed on the basis of the syntax of expressions.
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HiFi DA Converter with Integrated Headphone Amplifier
Doležal, Pavel ; Jaroš, Jiří (referee) ; Šimek, Václav (advisor)
This thesis is dealing with a design and fabrication of D/A coverter and headphone amplifier for stereo reproduction in Hi-Fi class. In opening chapter, overall problematics of digital audio signal distribution is discussed. Following chapters are dedicated to converter design, communication protocols, component selection, converter production, circuitry design and firmware programming. The final chapter is dealing with expansion options such as HDMI inputs and surround sound.
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Connecting Embedded Systems to Intranet
Damborský, Roman ; Ryšavý, Ondřej (referee) ; Švéda, Miroslav (advisor)
This thesis studies possibilities of connecting embedded systems to intranet. Available technologies and resources usable for control and capturing of data on remote sensors are considered. It goes into IEEE 1451.1 standard, which defines abstract interface of transducer for sensors connecting, while avoiding specification of concrete implementation of communication between these entities. Design and implementation of application with architecture based on IEEE 1451.1 standard takes also place in this thesis.
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HW and SW for Ethernet-to-IEEE802.15.4 bridge
Růžička, Tomáš ; Štohl, Radek (referee) ; Fiedler, Petr (advisor)
The present work includes theoretical information about network protocols, Ethernet (TCP/IP) and IEEE 802.15.4.Work also includes design of the converter realiyed using the development kit RCM 3365 from the Rabbit Semiconductor company. The converter works with the UDP, which can be converted to packets of wireless standard, or from a wireless packet can create a UDP packet. The wireless part was replaced with a serial interface RS-232, after which the packets travel in wireless standard IEEE 802.15.4. To create and monitor data on the Ethernet and RS-232 three external programs are used.
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Laboratory board demonstrates CAN bus
Levek, Vladimír ; Fedra, Zbyněk (referee) ; Frýza, Tomáš (advisor)
The goal of this thesis, is proposal of the laboratory board demonstrates communication by the help of bus CAN. Laboratory boards, controlled with microprocessor, will be send statuses inputs and outputs with each other. Also it will can be transmit and receive messages by the help of the serial port RS-232. With protocol CAN will be send this information: Temperature, Lighting, Analog input 0 - 5 V, Analog output 0 - 5 V, Digital input level TTL and digital output type open collector.
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