Programmable Devices
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get work a LCD 16207 on cyclone IV Gx

Altera_Forum
Honored Contributor II
‎02-21-2014 07:20 AM
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Hello, 

 

I would like to send a character or a chain character to a LCD 16207 16x2. I have integrated the Lcd, the nios on QSYS and everything, I have created a project on Quartus II and assigned all pins correctly. 

In Eclipse, I wrote a program just for cleaning the LCD but It doesn't work.. 

All functions and drivers are already written in file.h, I just have to initialize some variables but even tought, It doesn't work. Does anyone already has a problem like that and can help me? 

 

Thanks a lot! 

Tiff.
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Altera_Forum
Honored Contributor II
‎02-21-2014 12:06 PM
226 Views

I integrated this block in a Stratix IV with quartus 12.0 and it worked(I didn't write the SW for it). But there is a big however, the block was written for a clock of 50MHz and all timings are fixed. So clocking at an higher speed can be a problem for the LCD timings. Maybe this is already fixed in the new quartus versions (but i doubt altera fixes bugs, they only seems to create more bugs). It might be best to check the timings with a scope first(or signaltap).

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