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Glcd 128x64 with stm32

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ep.hobbyiest

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Hi
Did anybody try to Interface graphics LCD with stm microcontroller. I am trying to do same but I am facing some problem with voltage level. I think graphics LCD accept 5 volt and stm can provide 3.3 voltage only.

Please suggest some something on the same.
 

Power GLCD from 5V but for signal lines it is not a problem to use 3.3V lines.
 

That's a useless question without referring to a specific graphic LCD controller. Many recent GLCD controllers are e.g. 3.3 V only and must never be connected to 5V.
 

Thanks for correcting me.

Then problem might be in code only.

bcoz same code is working on PIC controller except driver level changes.
 

Hi,

Why fo you think it's code?
For sure the logic levels can differ from one microcontroller family to another.

Like so often: The answer can be found in the datasheets. Therefore FvM asked for the exact type.
Input levels and output levels..
High, low, max allowed.

Klaus
 

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