Hi Robert,

Strange, if it was the opposite "LEDs only works after you disable
JTAG on DDPCON" would make more sense. Maybe the gpio config is
activating some necessary clock, but I don't see nothing about it here
http://ww1.microchip.com/downloads/en/DeviceDoc/61129D.pdf

What is happening when you just configure the pin as GPIO output to
control the LED and don't disable the JTAG?

BR,

Alan

On 8/7/22, Robert Middleton <osfan6...@gmail.com> wrote:
> I'm messing around with NuttX for fun, and I'm working on adding a
> sample for the Explorer16 board.  Some of the LEDs on the board are on
> the same pins as JTAG pins.  I've managed to set the correct register
> to disable JTAG(DDPCON), however this only works after configuring the
> pins to be LEDs(using pic32mx_configgpio).  It seems like it shouldn't
> matter if this is done before or after the TRIS/ODC registers are set.
>
> I didn't notice anything about this in the datasheet or in the errata,
> has anybody seen this before?  Is there something that I'm missing?
>
> -Robert Middleton
>

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