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QVGA backlit when Ulink2 connected to PC.

I'm using a QVGA display with an MCB2460 board. When I connect the cable from the Keil Ulink2 to my PC the Display lights up with a grey backlight. When I connect my USB A cable supplying power for my board from my PC the Display darkens. I can use the display as normal but once power is removed from the board WITH the Ulink still in place the display returns to Grey backlight.

  • Maybe, read the user manual of LPC24xx, see Chapter 9: LPC24XX Pin connect, check the PINSEL4 and PINSEL10 related stuff.

    or add the below code to your main(), and see what will happen.

    PINSEL10 = 0x00;