If you have the read/write line connected to your PIC you can use the
display memory on the lcd as ordinary memory (a little slow to read, but
your users will never notice).  Storage and display in one!

You can even use equates to 'name' the memory positions (for the display
memory) in the lcd.
If I remember correctly line 1 starts at 0x80.

Bye.

-----Original Message-----
From: Thomas N [mailto:thomasn101@HOTMAIL.COM]
Sent: Friday, 27 July 2001 9:28
To: PICLIST@MITVMA.MIT.EDU
Subject: [PIC]: Display Method. Need help!


I am using the PIC16F877 with an 16x2 LCD module.  I am trying to display
the A/D results on the LCD, 4 numbers per each row.

What I did is that I set aside 32 bytes of memory and each byte of memory
represents one ASCII character on the LCD (16 bytes for Line 1 and the
others for Line2).  Then I store the A/D results in appropriate "coordinate"
in the memory.  After that, I "copy" the entire memory block (the 32 bytes
block) to the LCD.  Whenever I want to update a certain A/D number, I go to
its memory location and update the number, then do the "copy" to the LCD
again.

Is there a better way to do this?  There must be...

Another "pain" I have to go through is to convert the A/D number to ASCII.
Let say the A/D result is 173 decimal, I have to separate number 1, number
7, and number 3.  Then covert them to ASCII, then store them in the memory
block, then copy the memory block to the LCD.

There must be a better way to do this too, right?

Thank you in advance!
Thomas

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