15 лучших проектов из журнала Elertor Elektuur.Описание и принципиальные схемы на английском языке.
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Examines the lifetime of the Polish-born scientist who, along with her husband Pierre, was once provided a 1903 Nobel Prize for locating radium.
This present day, radar in a single shape or one other is probably going to show up all over: on the street, on the waterfront, in an underground motor-road. by way of a ways the widest use of radar is made by way of the army and scientists. In all of those fields millions upon hundreds of thousands of radar units are at paintings. a few of them are sufficiently small to be equipped into spectacles, others weigh hundreds and hundreds of plenty.
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CAN is ‘hip’ and few PLCs we have seen offer this connectivity. Here we use an MCP2515 CAN controller chip and an MCP2551 line driver. The CAN controller chip is connected ECIO peripheral pins set up to do SPI comms. There is also an interrupt pin, which is connected to ECIO pin RB2 and a chip select pin, which is connected to ECIO pin RB3. The CAN controller has its own 20 MHz clock derived from a quartz crystal, X1. The actual connection of the CAN bus to the ECIO is by way of K9, a 2-way PCB mount screw terminal block.
Construction The component mounting plan of the PCB designed for ECIO PLC is shown in Figure 2. As usual the copper track layout may be downloaded from our website for those with the wherewithal to etch & drill their own circuit board at home. All others will like to hear that the bare board is available ready-made from the Elektor Shop. No SMD components are used in this project so stufﬁng the board should be mostly plain sailing if you use care and precision in handling and soldering the parts.
It requires a 5 V supply, but as its consumption is quite high, the pro- Elektor5/2007 blockbusters - elektor electronics – EPLDs and CPLDs from ALTERA – EPLDs and CPLDs from XILINX VCC TCK 1 2 GND TDO 3 4 VCC TMS 5 2 1 TCK 4 3 TDO 6 5 TMS 8 7 10 9 6 7 8 10 GND 1k VCC TCK Target Altera Device TDO TMS TDI TDI 1k TDI 9 1k VCC VCC GND 060287 - 12 Figure 1. CPLD and EPLD (Byteblaster II) from Altera: 10-pin DIL connector. Software: Quartus II Web Edition, Quartus II Programmer  VCC VCC XILINX VCC 1 2 VCC GND 3 4 TMS GND 5 6 TCK GND 7 8 TDO GND 9 10 TDI GND 11 12 GND 13 14 1 2 3 4 TMS 5 6 TCK 7 8 TDO 9 10 TDI 11 12 13 14 TMS TMS TMS TDI TDO TDI TDO TDI TDO TCK TCK TCK GND 060287 - 13 Figure 2.