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Altera_Forum
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14 years ago

Nios LCD Display

Dear friend , Somehow , I could not write text on LCD on DE2,is there any example code around.I can not find. My pio and "hello from nios" is working but ,I can not make LCD work. I need...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Hi cesimkaol,

I have build a system with the following components:

clk_source, Nios II Processor, lcd_character, Pio for led; onchip_memory, jtag_uart and an DDR2. The DDR2 is not neccasary but you have to take a look at your on-chip memory size and the size of your C-Code.

You can find an example how to program a LCD from optrex in the following doc

DOT MATRIX CHARACTER LCD MODULE USER’S MANUAL from here:

www.optrex.com/siteimages/litcentral/dmcman_full.pdf.

In that doc is a description about the LCD registers and how to control tham. It help me a lot.

Be also aware that you have the right Pin Assignments for your LCD(see right here:

www.alteraforum.com/forum/showthread.php?t=4610&nojs=1&gsa_pos=4&wt.oss_r=1&wt.oss=lcd character)

If you don´t have it your display make crazy things.

I hope this hint will help you.