What's wrong with STM32 which communicating with LCD module

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I'm currently in trouble with displaying something on the HY28B LCD module.I configured my LCD module in 16bits mode by soldering the right short at the right place and I'm using an STM32[url]=http://www.kynix.com/Detail/1223233/STM32F103C8T6%20ARTC.html[url];discovery board STM32 discovery board to drive the LCD module. I ported the source code given by the seller and tried many init sequences found on the internet. I currrently can read the part number register wich is 9325corresponding to the ILI9235 LCD driver but I can't go further. Here is my code, my only aim is to fill the display with one color to establish the right way to comminicate with it unfortunatly the display remains white. You will find my pin assignation in the source code except for my reset and backlight pin wich are tied to 3V3.

What I have tried:

I don't konw where the problem is.

Posted 17-Jul-16 22:05pm

Member 12639824

Updated 18-Jul-16 11:26am

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Richard MacCutchan 18-Jul-16 4:13am

I don't konw where the problem is.
Well I don't think anyone can help without seeing the code.

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Patrice T · Answer 1 · 2016-07-18T11:26:00

Solution 1

I would first check the electronic with a multimeter and a scope, may be also with a logic analyzer.
You need to make sure sure the electronic configuration is OK.
Make sure what the LCD receive.
I fear not much help is possible remotely.

Posted 18-Jul-16 11:26am

Patrice T