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== https://es.technikum-wien.at/openlab/openlab_wiki/wikis/home[Home] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/board_TIVAC[<Microcontroller-based TIVAC] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/sig_proc_osci_hardware[Signal Processing Front-End (XMC,TIVAC,DE0-Oscilloscope)>]
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= Microcontroller-based XMC4500
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One of the tested microcontroller-based solutions at the OpenLab project is the Relax Kit V1.0 [10] developed by Infineon.
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This board is used as an evaluation board for the XMC4500 microcontroller.
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The Relax Kit is available in two versions, the fully assembled Relax Kit-V1 shown in figure Relax Lite Kit-V1 and a less populated one shown in figure 15.
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Each of the pictures shows one version of the Relax Kit with markings pointing to key components that have been assembled onto either board.
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The less populated version lacks the connector and interface devices for Ethernet networking, the SD-card holder,
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an on-board FLASH memory accessible via SPI (Serial Peripheral Interface) and a crystal which may be used to clock the internal RTC (Real Time Clock) unit.
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The components that are essential for the developed firmware to function are available on both types.
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So it is possible to use the cheaper one for the OpenLab oscilloscope if other features like the Ethernet port or the micro SD card slot are not needed by optional user firmware.
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A very convenient feature of both variants is that they are shipped with a fully functional in-circuit debugger on board.
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It is marked on the boards as "Detachable Debugger".
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This debugger supports a de facto standard debugging interface called JLink introduced by the company "SEGGER Microcontroller GmbH & Co. KG".
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It is in widespread use within the open-source and open-hardware community not at last because the stand-alone debugging probes are available
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from this company in an "EDU" version which is aimed at and affordable by hobbyists.
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The XMC4500 integrates a state-of-the-art processor at its core as well as a broad range of highly configurable and powerful peripheral hardware units.
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This renders this microcontroller to be fairly complex for a novice programmer and it took a considerable amount of time to become
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familiar with just a sub-set of the possibilities this controller offers.
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Therefore the following listing gives just an overview of the features and specification of the microcontroller found in the datasheet by Infineon.
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== Summary of the features and specification of the XMC4500 microcontroller [2]
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*CPU Subsystem*
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* CPU Core
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** High Performance 32-bit ARM Cortex-M4 CPU
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** 16-bit and 32-bit Thumb2 instruction set
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** DSP/MAC instructions
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** System timer (SysTick) for Operating System support
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* Floating Point Unit
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* Memory Protection Unit
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* Nested Vectored Interrupt Controller
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* Two General Purpose DMA with up-to 12 channels
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* Event Request Unit (ERU) for programmable processing of external and internal service requests
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* Flexible CRC Engine (FCE) for multiple bit error detection
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*On-Chip Memories*
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* 16 KB on-chip boot ROM
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* 64 KB on-chip high-speed program memory
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* 64 KB on-chip high speed data memory
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* 32 KB on-chip high-speed communication
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* 1024 KB on-chip Flash Memory with 4 KB instruction cache
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*Communication Peripherals*
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* Ethernet MAC module capable of 10/100 Mbit/s transfer rates
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* Universal Serial Bus, USB 2.0 host, Full-Speed OTG, with integrated PHY
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* Controller Area Network interface (MultiCAN), Full-CAN/Basic-CAN with 3 nodes, 64 message objects (MO), data rate up to 1MBit/s
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* Six Universal Serial Interface Channels (USIC),providing 6 serial channels, usable as UART, double-SPI, quad-SPI, IIC, IIS and LIN interfaces
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* LED and Touch-Sense Controller (LEDTS) for Human-Machine interface
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* SD and Multi-Media Card interface (SDMMC) for data storage memory cards
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* External Bus Interface Unit (EBU) enabling communication with external memories and off-chip peripherals
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*Analog Frontend Peripherals*
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* Four Analog-Digital Converters (VADC) of 12-bit resolution, 8 channels each, with input out-of-range comparators
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* Delta Sigma Demodulator with four channels, digital input stage for A/D signal conversion
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* Digital-Analogue Converter (DAC) with two channels of 12-bit resolution
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*Industrial Control Peripherals*
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* Two Capture/Compare Units 8 (CCU8) for motor control and power conversion
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* Four Capture/Compare Units 4 (CCU4) for use as general purpose timers
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* Two Position Interfaces (POSIF) for servo motor positioning
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* Window Watchdog Timer (WDT) for safety sensitive applications
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* Die Temperature Sensor (DTS)
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* Real Time Clock module with alarm support
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* System Control Unit (SCU) for system configuration and control
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*Input/Output Lines*
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* Programmable port driver control module (PORTS)
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* Individual bit addressability
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* Tri-stated in input mode
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* Push/pull or open drain output mode
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* Boundary scan test support over JTAG interface
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*On-Chip Debug Support*
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* Full support for debug features: 8 breakpoints, CoreSight, trace
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* Various interfaces: ARM-JTAG, SWD, single wire trace
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== Bibliography
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. TERASIC: _DE0 product page_ [Online] http://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&CategoryNo=165&No=364&PartNo=1[DE0 product page]
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. ALTERA CORPORATION: _Cyclone III Device Handbook_, 1.0 ed., 2012
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== https://es.technikum-wien.at/openlab/openlab_wiki/wikis/home[Home] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/board_TIVAC[<Microcontroller-based TIVAC] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/sig_proc_osci_hardware[Signal Processing Front-End (XMC,TIVAC,DE0-Oscilloscope)>] |
