CFAG240128L-TMI-TZ 8 pixels constantly on


New member
I've been working with this display for a while now and everything worked fine. Now I have 8 pixels on the display that are constantly on. Everything else still works fine. Is the display broken or what could cause this? I didn't do any display related software changes when this happened, all of sudden those pixels were on and won't go away.

Looking for additional LCD resources? Check out our LCD blog for the latest developments in LCD technology.

CF Support

That looks an awful lot like a cursor. I would check your initialization, it should probably be something like this:
void LcmInit( void )
     LcmWriteCommandWith2Par(0x00,0x00,0x40);      //
     LcmWriteCommandWith2Par(LcmLengthDots/8,0x00,0x41);      //
     LcmWriteCommandWith2Par(0x00,0x08,0x42);      //address 0x0800
     LcmWriteCommand(0xA0);                  //CURSUR 8x1
     LcmWriteCommand(0x81);                  //Xor
     LcmWriteCommand(0x9C);                  //TURN TEXT AND GRAPHIC ON