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Recent content by dpatel

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    GAL G16V8 - complex expression

    Thanks for the replies! I was re-reading the datasheet and wanted to ask if complex mode could do what I needed? There are 10 inputs; 1 output (with it's own output logic) and 4 logic expressions each with >8 product terms (as described above).
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    GAL G16V8 - complex expression

    Thanks... So, I would need 2 OLMCs for each expression like the one above? So, I would need 8 OLMCs in total for 4 complex expressions? But I only have 3 spare output 'pins' for the extra OLMCs and I think that not all OLMCs can have feedback paths (if I've read the datasheet correctly) -...
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    GAL G16V8 - complex expression

    Sorry. Should have said the last few terms are added for static hazard cover. But I still have >8 terms.
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    GAL G16V8 - complex expression

    I have 4 expression all similar to this: yD = yD & X # yD & !D # yD & yA # yD & yB # yD & yC # !yC & !yB & yA & X # yC & !yB & !yA & X # !yC & yB & !yA & X # yC & !yB & !yA & H # yC & yB & yA # yD & yC &...
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    GAL G16V8 - complex expression

    I did think of using the feedback paths of the other pins but there aren't enough! Can't see how else to split the expression... Unfortunately this is the device I have to use.
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    GAL G16V8 - complex expression

    Hi. I'm trying to a program a G16V8 using WinCUPL. I have 4 quite complex logic expressions - each with >8 product terms (which is the max allowed for this device). Is there a mode/CUPL technique that allows this to be implemented or is it just plain impossible?! By the way I only have a couple...
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    [SOLVED] Latching issue on storing a value

    I see - thanks! I was doing it asynchronously...
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    [SOLVED] Latching issue on storing a value

    Could you please elborate on this method. I don't want latches but not sure of how to do it otherwise.
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    [SOLVED] Latching issue on storing a value

    OK, sorry for the incomplete info. num is a std_logic_vector. The error I get when I 'implement' (mapping stage) is ERROR:Place:1108 - A clock IOB / BUFGMUX clock component pair have been found that are not placed at an optimal clock IOB / BUFGMUX site pair. The clock IOB component...
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    [SOLVED] Latching issue on storing a value

    Hii - My first post here. I am trying to store a value on a button press: num <= switches(7 downto 0) when button = '1'; Now, when I synthesise this it warns of latches on 'num' but that's what I want (to store the value of the switches when the button is pressed). When I try to implement I...
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