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Vývojová platforma pro komunikační rozhraní v napěťovém a proudovém módu

Authors:

Vykydal, L.

Type:

functional demonstrator

Date:

2019-02-26

Projects:

FEKT-S-17-4707 - Návrhy nových funkčních bloků a algoritmů pro moderní komunikační systémy
LO1401 - Interdisciplinární výzkum bezdrátových technologií (INWITE)

The platform has been developed as add-on boards for Enclustra FPGA board with Xilinx Zynq. This enables an easy connection of the development setup with PC using variety of interfaces, namely USB 3.0, GLAN, and UART in case of lower data-rate requirements. The setup is prepared for testing a master-slave bus with one master and up to 6 slave nodes. The platform supports both voltage- and current-mode communication. The piggyback board contains ADC and DAC for converting physical layer signal into the digital domain. The rest of communication interface, including symbol recognition, synchronization, scrambling, and error detection is implemented purely in the digital domain. A PC software implements communication trough UART to bus master implemented in FPGA and application level communication. The software can also be used to visualize data from slaves and in the same time to evaluate the frame error rate based on CRC embedded in communication frames.

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Testbed pro metody tlumení měničů s využitím v ultrazvukových parkovacích systémech

Authors:

Ledvina, J.; Vykydal, L.

Type:

functional demonstrator

Date:

2019-02-13

Projects:

FEKT-S-17-4707 - Návrhy nových funkčních bloků a algoritmů pro moderní komunikační systémy
LO1401 - Interdisciplinární výzkum bezdrátových technologií (INWITE)

The designed testbed is used to test feasibility of advanced algorithms for automatic tuning of parallel resonant circuit of an ultrasonic transducer to maximize system performance, mainly in short distance measurements. The system consists of PCB with an analog test-chip and PCB with an FPGA for digital control. The test-chip is equipped with ultrasonic drivers and receivers, synthetic inductance and additional circuitry for different types of damping. The test-chip is highly configurable for the maximum flexibility of presented system. The PCB with FPGA is populated with Xilinx Spartan-6 FPGA and offers high variety of communication interfaces mainly USB, CAN, and LIN. The developed FPGA configuration allows control of the system from PC software and also integration in a test vehicle.

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