Olimex STM32F207 , no text on the LCD display

skdeka · ‎2012-07-16

Posted on July 16, 2012 at 11:22

Hi,

I am new to LCD display controller. I am using Olimex STM32F207 board with onboard 6610 LCD color 128x128 TFT display. I have initialized the LCD according to Example code. I my case I could see LCD backlight is on but not text on the screen.

Can someone highlight any potential problem and how to debug this issue.

Thanks & regards,

Skdeka

#olimex #stm32f207-lcd

Tesla DeLorean · ‎2012-07-16

Posted on July 16, 2012 at 14:01

Check you have all the STM32 pins and clocks configured and enabled properly.

Try to find a known working example/demo for the board. Alternately look at other examples using the same display.

If you want others on the forum to review the code you'll need to zip it up and attach it.

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skdeka · ‎2012-07-23

Posted on July 24, 2012 at 07:15

Thanks Clive.

What I found is that the LCD controller connected using SPI bus 1 shares some PIN(MOSI & MISO) along with the JTAG connector. If I remove the JTAD connector, I can see the text being displayed.