Hi,
We are planning on using the Displaytech-128240D Graphical LCD. We bought a few LCD samples online and we were trying to interface with the MSP430 (MSP430F6659) series microcontroller.
We are using SPI 4 line interface and we are using the RAMTEX LCD stack.
We are using a 3v supply and used 5x multiplier capacitor circuit. But we are facing issues.
We observed that the LCD initially works (partially) but soon stops working within a few seconds. the SPI lines seem to be getting damaged, the microcontroller lines are also getting damaged and not usable further.
The LCD also seems to stop working.
Can you please help up resolve this issue?
Please suggest a schematic example for 3v VCC and SPI 4 line communication.
We have already wasted many LCDs and Microcontrollers.
The support team is not replying and the Forum post is ignored for 8+ days now. How pathetic is your service,
Hey Feroze,
My sincere apologies you haven't received a response to your post yet. Our team does help in providing answers to posts but we do encourage other users to also chime in.
I have shared your post with our team so hopefully you'll be receiving some suggestions soon.
Hi @Feroze Mohamed,
Could you provide some more information about your design (specifically the supply voltages) or perhaps share your schematic?
What is your backlight voltage?
When you say that the LCD stops working I assume you mean that the screen goes dark. When this happens are you able to see light from the backlight around the edges of the display?
We appreciate your patience and will do our best to help resolve your issue.