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Block diagram of the DSP board. The properties of the DSP board: • powerful floating-point Texas Instruments TMS320C6711 DSP for computation of multiple FFTs and for calculation of measured quantities, • high speed temporary data memory (8 MByte SDRAM), • large low-cost program and data memory (4 MByte flash ROM), • simple control signals and data transfer from the three A/D converters at sampling rate up to 100 kHz, • simple communication between the DSP and the microcontroller (HPI interface, [14]), • watch-dog security system, • JTAG emulation for software development.

Block diagram of the DSP board. The properties of the DSP board: • powerful floating-point Texas Instruments TMS320C6711 DSP for computation of multiple FFTs and for calculation of measured quantities, • high speed temporary data memory (8 MByte SDRAM), • large low-cost program and data memory (4 MByte flash ROM), • simple control signals and data transfer from the three A/D converters at sampling rate up to 100 kHz, • simple communication between the DSP and the microcontroller (HPI interface, [14]), • watch-dog security system, • JTAG emulation for software development.

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Accurate measurement of parameters of a power network is now possible by digital methods. The description of the proposed and realized instrument based on the digital sampling method is given. It can measure basic parameters of the three-phase power network such as rms values of voltages and currents, powers, energies, power factors, the network fr...

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... most important part of the device is the digital signal processor (DSP) board with a powerful TMS320C6711 DSP, Fig. 4. This part makes all the necessary computations of the system. It controls the communication with A/D converters and stores data in memory. In registration mode the device takes the advantage of a large on-board memory where the measured values are stored. To visualise the results, a communication port with the microcontroller has been ...

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