How can I program GAL 16V8-25QJ?

• Oct 31, 2003

• #1

abba

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i want to implement some logic functions in only one chip.
how can i programm GAL 16V8-25QJ?
is it possible to write the code in vhdl?
which tools are needed for this?

 

• Nov 1, 2003

• #2

E

eltonjohn

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gal programming

Hi abba ..
The best way to programm those chips is by usin a low level language
like PALASM , CUPL , ABEL or PLDSHELL from intel
You can always use VHDL .. but is an OVERKILL and if you are not familiar with the GAL architecture .. you will get lost in the language ..
or will not be able to optimize the design !
But don't blame it on the language or on the tool , is your code .

 

• Nov 1, 2003

• #3

R

ramesh

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gal jed simulater

It is better use Atmel CPLD's for which you can use WinCUPL or VHDL coding for the design.

For more details visit

http://www.atmel.com/dyn/products/tools.asp?family_id=653

 

• Nov 1, 2003

• #4

abba

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vhdl to jedec convert

this week i bought two peaces of 'GAL 16V8'-because they are cheaper and smaller than xilinx cpld's (costs about 2$).

I think to program this device in abel.
For my circuit following gatters are needed (I hope it's possible to implement this):
4xNOR
8xNAND
1xInverter

At the next step i'm searching for:
-little example in abel
-simulation tool
-compiler (abel2jtag)
-small circuit for programming GAL by LPT-port.

is it possible to work with the xilinx project navigator?
(
source programming with Project Navigator,
simulation with ModelSim,
GAL programming with iMPACT
)

thanks in advance,

abba

 

• Nov 1, 2003

• #5

L

lucbra

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isplever gal programming

Hey abba,

look at Lattice website. they have free tools for GAL etc.
Programming can be done in schematic, abel, etc. :idea:

 

• Nov 1, 2003

• #6

SphinX

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programming gal20v8 using wincupl

Hi abba,

Here is a GAL Programmer you can build it

hxxp://www.geocities.com/ResearchTriangle/Forum/8070/galblast.htm
hxxp://www.geocities.com/ResearchTriangle/Forum/8070/galblas1.zip

Bye
Pharaoh Of Egypt

 

• Aug 27, 2005

• #7

N

neeo

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vhdl 18cv8

I am a newbee trying to convert a GAL 20L8 to a PEEL 18CV8 can anyone tell me what program to use to convert the file?

 

• Sep 21, 2005

• #8

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jd_buya

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convert gal to peel

I'm need how to programming GAL20v8. Help me.

 

• Sep 26, 2005

• #9

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shekar_vlsi

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16v8 peel compiler

search in elektor electronics magazine site b'cos i remember once they had given a project regarding gal programmer with details regarding the tools used.

 

• Sep 27, 2005

• #10

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wshmelb

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peel 16v8 compiler

Hi
Go to lattice web site.
https://www.latticesemi.com/
Download ispLEVER software package.
First, choose the right chip.(e.g. with enough I/O ports; ispGAL or GAL)
Then,
i) write your code in Modelsim(VHDL code compiler).
ii) Feed your code in ispLEVER, compile it, it'll generate XXX.jed file.
iii) Feed XXX.jed file in ispVM, if you have the download cable and the programmer, then the rest is as simple as click a few buttons.

Good luck

 

• Sep 27, 2005

• #11

K

kender

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isplever 16v8

Yes. My favorite tool is Cypress WARP. You can get it at DigiKey, or from Cypress directly (together with a descent VHDL book, if you need it) for $99 (428-1303-ND). It's also downloadable (the keys are out there).

 

• May 3, 2006

• #12

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nickich

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warp software gal20v8

kender said:

Yes. My favorite tool is Cypress WARP. You can get it at DigiKey, or from Cypress directly (together with a descent VHDL book, if you need it) for $99 (428-1303-ND). It's also downloadable (the keys are out there).

Click to expand...

Where can I download it from?

 

• May 6, 2006

• #13

salma ali bakr

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isplever example gal

but hey guys, why program GAL
is it better in some of its features over CPLDs or FPGAs
just need some clarity please

thanks,
Salma

 

• May 7, 2006

• #14

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guolh

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abel gal programming

Lattice ispLEVER!

 

• Jun 21, 2006

• #15

K

kender

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Re: GAL - programming

salma ali bakr said:

but hey guys, why program GAL
is it better in some of its features over CPLDs or FPGAs

Click to expand...

I can name only a few features, where GAL is better than CPLD:
- Cheaper
- Available in low pin count package => smaller.
- Produced by many vendors.

And, finally, sometimes you just have to reprogram GALs in the old products, which were designed, when GAL was on the leading edge.