Display of 8 characters in 8x2 LCD

[SURJANSH]

I am using a LCD display ( basically in a project involving 8051 MCU , and serial communication with my pc through hyperterminal)
And it is not showing characters after displaying the first 8.
So pleas help me out of the problem.

Thanks in advance

 

[d@nny]

plz paste your code here
have u configure the lcd before sending data to it?

 

[SURJANSH]

Actually i wanted the possible CG RAM addresses of that 8x2 LCD..
8x2 LCD is not mentioned in the 8051 book that i have.

---------- Post added at 18:33 ---------- Previous post was at 18:32 ----------

Actually i wanted the possible CG RAM addresses of that 8x2 LCD..
becoz , 8x2 LCD is not mentioned in the 8051 book that i have.
the coding i can handle myself.

 

[nandhu015]

The address of second line is 0xc0

 

[d@nny]

check the datasheet of HD44780.

---------- Post added at 14:05 ---------- Previous post was at 14:04 ----------

It will help you completely for understanding LCD at all.

 

[FvM]

Yes, the code is most likely expecting a 16x2 display. You would need to advance to the second line (and respective cursor position, e.g. 0x40) after the first 8 characters.

 

[bigdogguru]

If you would like us to help you, I would suggest posting or uploading your code and a schematic if available.

It sound like the cursor is not being positioned correctly or the LCD was not initialized correctly.

BigDog

 

[SURJANSH]

Thanks dude

 

[Gorgon]

The code to change address is 0x80+ the address(0x40). So the data for the start of line 2 command is 0xc0 and the start of line 1 is 0x80.