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yshnaider
Associate II
Jun 23, 2019 11:57 AM UTC
Question

Hi people, recently I connected an LCD screen to my stm32F469VETx MCU. I configured an FSMC interface for communication. The screen turns on but when I try to write something to the screen nothing happens. Can anybody tell what could be the problem?

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4 replies

Tesla DeLorean
Guru
Jun 23, 2019 3:38 PM UTC

Check you can actually read back registers you have written, or you can read an ID or WHOAMI register.

Could be a million reasons why you failed, present your problem better, so someone could recreate your setup exactly from your description.​

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yshnaider
yshnaiderAuthor
Associate II
Jun 25, 2019 7:23 AM UTC

I configured the display and drivers using cube. These are the main configurations for the display:

0690X000008j9BdQAI.png0690X000008j9BTQAY.png

yshnaider
yshnaiderAuthor
Associate II
Jun 25, 2019 7:26 AM UTC

0690X000008j9CRQAY.png0690X000008j9CHQAY.png

yshnaider
yshnaiderAuthor
Associate II
Jun 25, 2019 7:29 AM UTC

And when I try to display the simple example with "hello world", the mcu writes only to 2 of the data pins...