Command trouble with stamp driven LK204-25-WB

Rick · Post by **Rick** » Fri Apr 16, 2004 12:05 pm

Henry,

I'm messing around with a new LK204-25-WB we plan on using for a few projects here at Sea World. I'm using a Basic stamp 2 chip and following the simple example of sending text and/or commands to display from a basic stamp. This example was included in the Matrix Orbital box. The very simple serial code is:

Sending Text:
serout 1, 84, ["hello world"] ' this works fine

Issuing a Command:

serout 1, 84, [254]' Command prefix
serout 1, 84, [88]' Clear screen 'this does not work In fact I can not get any command prefix codes to work. Instead the display writes a 'X' to the screen.

Does this make since?

Thanks in advance!

Post by **Henry** » Fri Apr 16, 2004 12:14 pm

that sound pretty insane as far as I can guess... if you get the letter X on your screen, as you said the command prefix isn't being taken. Lets go over a couple of things, 1. is your LCD set to 9600? 2. are you talking at TTL leverls from the Stamp?

if all of that is ok, try sending the 254 command in hex FE ...

Rick · Post by **Rick** » Fri Apr 16, 2004 12:56 pm

Henry wrote:that sound pretty insane as far as I can guess... if you get the letter X on your screen, as you said the command prefix isn't being taken. Lets go over a couple of things, 1. is your LCD set to 9600? 2. are you talking at TTL leverls from the Stamp?

if all of that is ok, try sending the 254 command in hex FE ...

Henry,

Thanks for the fast responce. I've already tried your recommendations but I will double check everything.

Miles · Post by **Miles** » Fri Apr 16, 2004 1:30 pm

Try sending the bytes in the following manner:
serout 1, 84, $FE,$58

Can you also try sending serout 1,84, [254] individually and see if anything is displayed on the unit...I know this is a command syntax, just curious...

Let us know how you make out...