first off. thank you for your quick replies. your service is the number one reason we use your screens in our products.
it feels like there is a lack of info in the dev manual
please check out this link http://home.iae.nl/users/pouweha/lcd/lc ... l#transfer
infact that how page makes it easier to understand the communication
a table like this explaining the serial logic in transmitting the info to the display. Im using a micro-controller not a computer
Thats documentation on how to drive the actual LCD Controller, the atmel on our board takes care of all that, all you need to do it feed the display power and a serial port and we'll take care of all the nasty bits, there is no translation from that sheet needed all the bare controlelr has to offer is exposed and improved as a serials commands you can send. All commands are in the manual and start with 254.
transmitting 'hello world' makes a certain amount of common sense however i know there are other codes to send to the display such as reposition of the curser. I see in the manual the "special codes" start with dec(254) which looks like a funny character code on the display charset..
example: dec(254 88, clears the screen)
i need to know how to distinguish between a screen code and plan txt to display.. this does not seem to be explained well.
Anything startig with 254 is a command, unless you are in the middle of sending a command anything else will be displayed directly as text on the unit.
which leads me to another question.. the manual shows 2 ascii tables one with Japanese chars the other with what looks like Greek chars.
why are there two tables? are there two different models of display. are the two modes???
The manual is for both the VFD and LCD versions of the board, below the table there is a note on what flavour the table applies to.
also there are buttons on this devboard. i can make an assumption that they allow input of information.... but how. in the manual is shows codes returned on button press......
You just answered your own question :) Keypresses are send back over the serial port so your code can take action on them.
will i find these codes pulsed back on the rs232 port?
Yes you will!
the amtel is a chip that drives the display....... does that mean i should be writing my code on the amtel?? is there a in circuit programmer pins i should be using to put my software on this board.
No our code sits in the atmel that translates the commands you send over rs232/i2c. Your pic will talk to our atmel and its really as easy as using the serial port. :)