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Electronics Forum / Electronics / October 2004Protel98 and PLDs
Hi All , Has anyone had any experience in designing a PLD directly from a schematic diagram using Protel 98 ..... Have used Protel for schematics and autorouting creating footprints etc and in the process of trying to learn more in the sch/pld area Libraries provided for PLDs and symbols seem to be a bit light on . I was able to design PLD from an example schematic given , also to design another although extremely simple logic with a couple of AND gates just to see if i could get it to work. Any ideas or pointers to some online help would be appreciated or are later Protel versions more efficient in this area . thanks > Hi All , > [quoted text clipped - 15 lines] > > thanks What pld are you using ? pla, pal, cpld, fpga ? Which manufacturer ? Does the manufacturer of the pld provide free software ? If its an older pld can you use one of the free software packages ? Alex > > Hi All , > > [quoted text clipped - 27 lines] > > Alex Using GAL20V8A and possibly PAL series , have no problems using WINCUPL to write code and then program the chip , but i am trying to basically do the same but directly designing from a schematic diagram in Protel , they have been using ORCAD but i think thats a bit outdated and besides i have not used it before [...] > Using GAL20V8A and possibly PAL series > , have no problems using WINCUPL to write code and then > program the chip , but i am trying to basically do the > same but directly designing from a schematic diagram > in Protel , they have been using ORCAD but i think > thats a bit outdated and besides i have not used it before I like the ICT-Place program and their PEEL22CV10Z (or somehting like that). The program is the easiest to use I've ever run into. The DOS version was better than the new Windoz version. For some silly reason they left the text search out of the Windoz version. Unlike other programs, you click on the picture of the macro-cell until it lookes like the type of circuit you want. Once you've got the right sort of flip-flop, you then write the equations for what goes in.  Signature-- kensmith@rahul.net forging knowledge I find that the schematic library for PLD that came with the Protel 98 really limited and ended up writing it in CUPL to make it work in the end. >> > Hi All , >> > [quoted text clipped - 35 lines] > thats a bit outdated and besides i have not used it > before |
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