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Topics - gnyturan

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Character LCDs / NHD-0420H1Z-FL-GBW-33V3 - 2 Lines Mode Problem
« on: October 24, 2015, 07:37:01 PM »
Hello everyone,

I am using NHD-0420H1Z-FL-GBW-33V3 with NXP LPC1774 an coding in C. When I initialize the LCD as described in the datasheet I cannot display anything, but if I try to use it in 1-line mode, it displays characters to the 1st and 3rd lines only.

So far, I tried:
- 3 (and more) wake up calls with 0x30 and then sending 0x38
- Putting exaggerated delays between init commands
- working in 1-line mode and addressing with 2-line addresses (0xC0 command for second line)
- using another unused screen

If anywhere in the code I use 0x38 command, I get blank screen.

If anyone had the same problem and/or knows the solution could you please help me with this.
Thank you very much in advance,
Kind regards

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