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Re: RS-485 to Ethernet
You'll need a micro with UART and a RS485 driver for the RS485 bus. The ethernet interface can be built with a special driver (like Microchip's ENC28J60) and a RJ45 (with magnetics ) connector.
You have to write some software for the micro to interface the ethernet...
There is a straitforward conversion, but you have to take care at least for followings:
1. Interrupt routines for high/low priority synthax (check code examples on microchip forum)
2. pin identifiing (for example RAx is changed into PORTAbits.RAx)
ucip versions
I have a similar problem: I have to build a connection between two Nokia32(30) GSM modems to send/receive small data: a server will request data from an embedded client, the client will reply with 1-2kbytes of data.
Few questions:
1. It is possible to implement this through GPRS...
Re: Orcad question
For every component used in simulations you have to be sure that related PSpice template exist; that's easy to see in component's properties.
Re: To Reuse a OrCAD project
For reuse facility in Orcad you need to re-annotate your schematic for 'design reuse'.
If this doesn't change your reference designators in MAX, you can import new netlist over old MAX file.
Did anyone know (as principle) how to block the ax of a 3-phase motor using the PWM signals?
It is needed by a emergency stop of rotor movement.
Thanks
soc encounter price
Try, declare in LEF N routing metals, run placer; next add a routing blockage on desired metal that cover all chip. Command is like:
"createRouteBlk x1 y1 x2 y2 -layer x -name Metalx"
Does anybody experimented usual optocouplers in audio applications?
I'm considering direct transfer of audio signal through optocouplers, not special techniques (modulations).
I don't want to use special linear optocouplers.
Any suggestion will be wellcomed.
Thanks
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