- Tue Apr 10, 2007 9:17 pm
#28428
Hi guys
I am currently working on a project and displaying some characters on a 2 line LCD display. I bought a 4x20 LCD display recently and started using that. Everything works fine except for when I try and move the cursor to a specified DDRAM Address. While I can jump the beginning of the 1st, 2nd and 4th lines, when i try to access line 3 (0x14), the cursor jumps back to the 1st line at 0x10 and then continues on to the 3rd line. When I try to access 0x10, the cursor jumps to 0x0C ( for address referencing, http://home.iae.nl/users/pouweha/lcd/lc ... ible_ddram)
Has anyone come across this issue before? Would it be possible that I have a faulty LCD? I can access any other address fine. I am using a ColdFire MCF52235 and the LCD uses H44780 chip.
http://www.sparkfun.com/commerce/produc ... cts_id=256
Thanks
I am currently working on a project and displaying some characters on a 2 line LCD display. I bought a 4x20 LCD display recently and started using that. Everything works fine except for when I try and move the cursor to a specified DDRAM Address. While I can jump the beginning of the 1st, 2nd and 4th lines, when i try to access line 3 (0x14), the cursor jumps back to the 1st line at 0x10 and then continues on to the 3rd line. When I try to access 0x10, the cursor jumps to 0x0C ( for address referencing, http://home.iae.nl/users/pouweha/lcd/lc ... ible_ddram)
Has anyone come across this issue before? Would it be possible that I have a faulty LCD? I can access any other address fine. I am using a ColdFire MCF52235 and the LCD uses H44780 chip.
http://www.sparkfun.com/commerce/produc ... cts_id=256
Thanks