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Forum: FPGA, VHDL & Verilog Help TO DISPLAY 2 LINE MSG USING SPARTAN 3AN


Author: ayna cancerian (Company: student) (cancerian)
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Hi i need help to display 2 line message on spartan 3an LCD !1 anyone 
have any idea please help
thanks

Author: Martin Schwaikert (sirnails)
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Show us, what you got so far.

Author: Holger (Guest)
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Please Check first this for the LDC Pin_ -Out. via Spartan 3E Board .
http://www.xilinx.com/support/documentation/boards...
So you need to get the source code for LCD via FPGA ...
Good Luck.

Author: Holger (Guest)
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http://www.cosmiac.org/pdfs/09Tutorial6.pdf
This is the hint for source code via FPGA to LCD.

May other users help to get the source code.
But first you must know the SPARTAN 3E PIN-Out via FPGA<-->LCD.
see (UCF) File..

Do you use VHDL or Verilog? .

May other find the ORGINAL SPRARTAN 3E Stock Firmware Reference File for 
the Project on Spartan 3E Board.
Greetings Holger.

Author: Holger (Guest)
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Here is a Video that shows how LCD via FPGA works .
And you can watch the part of the source code.
Youtube-Video "LCD Spartan 3E"

I will look for the orginal SPRATAN 3E source code and Project File,
wich is on the Board when its delivered.
Can anyone find it ?

Greetings Holger.

Author: Holger Harten (holger-h-hennef)
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Program LCD on Spartan-3E, Verilog/FPGA (TestLCD)

Trap:
Please notice exact the sfr_bit set fixed to 1 to disable the Stata 
FLASH
Device wich is also part of the´shared BUS via LCD.
See code review , see FPGA OUTPUT-PORT SFR == 1.
Link:

 Youtube-Video "Program LCD on Spartan-3E, Verilog/FPGA (TestLCD)"

Greetings Holger.

: Edited by User
Author: ayna cancerian (Company: student) (cancerian)
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i am using Spratan 3an board using VHDL !! i made code but its not 
working

Author: Holger Harten (holger-h-hennef)
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Can you put the orginal Stock Software thats delivered with Board
as bitfile on,
that you can see if the LCD Hardware is working anyway ?
Trap:
adjust contrast through trim pot.
(may you Trim-Pot is not ok)



How to Interface 2x16 LCD with Spartan-3an FPGA
Link:
http://www.pantechsolutions.net/cpld-fpga-boards/2...
check the Pinning there.  See map
There is the VHDL Code you can download after registration.

Greetings Holger.

Author: Holger (Guest)
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ayna cancerian wrote:
> i am using Spratan 3an board using VHDL !! i made code but its not
> working

--------------------------------------------------------------------
Can you write a Test-Bench to Simulate it on eg.
ModelSim  Simulator?.

Here is the code for VHDL
-- Description:    16x2 Text LCD controller for 8bit Mode
--                 used on the Spartan-3A Starter development board


http://www.mikrocontroller.net/attachment/highlight/49310


But keep the special Pin at the Strata Flash at permanent High.

It is shared with the LCD Bus.
--------------------------------------------------------------------
Greetings Holger.

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