LCD Appmod pinout?

bulkhead

I'm trying to use this (www.parallax.com/detail.asp?product_id=29121) on a board without the appmod header and I need to know which pins to connect. Looking at the code samples, it appears that only pins 1-3 are used:

E               PIN     1                       ' LCD Enable (1 = enabled) 
RW              PIN     2                       ' Read/Write\ 
RS              PIN     3                       ' Reg Select (1 = char)

However, looking more closely on the LCD PCB, there are lines going out from pins 1-7. That said, the sample program for mini sumo has pin 4 used for an IR LED. So am I correct in assuming I only need to connect pins 1-3, and of course, Vdd and gnd?

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I'm new to the propeller!

PJAllen

Programs written for the AppMod expect its pins to be connected with specific Stamp I/O pins.· Familiarize with those examples and have a look at the BoE schematic (it shows connections between the AppMod header and the Stamp.)
The AppMod LCD is parallel, not serial, you'll need to use D4-D7, too.

[u]AppMod Pin #[/u]     [u]Descr.[/u]    [u]I/O[/u]
     1,2          GND       -- 
 
[color=red]     3                      P0[/color]
[color=red]     4             E        P1[/color]
[color=red]     5             RW       P2[/color]
[color=red]     6             RS       P3[/color]
[color=red]     7             D4       P4[/color]
[color=red]     8             D5       P5[/color]
[color=red]     9             D6       P6[/color]
[color=red]    10             D7       P7[/color]
 
    19            Vdd       --
 

Post Edited (PJ Allen) : 8/5/2007 6:43:12 PM GMT

bulkhead

Okay, I looked more closely at the javelin code and I see the parallel interface. Pins 1-7 on the stamp do need to be connected. Thanks.

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I'm new to the propeller!