Hi guys
Is there a way to disable the internal pull down resistor on G#23, G#24, G#25 and G#26 (LED1, LED2, LED3 & LED4) ?
I can see in the RT5350 datasheet that the pins have internal pull down, but i am not sure if there is a way to disable the pulldown, to use them as regular input GPIOs?
Cheers
Disable internal pulldown on G#23, G#24, G#25 and G#26
- smilykoch
- Posts: 8
- Joined: Mon Jul 13, 2015 8:04 am
- smilykoch
- Posts: 8
- Joined: Mon Jul 13, 2015 8:04 am
Re: Disable internal pulldown on G#23, G#24, G#25 and G#26
Nevermind, i checked out the VoCore schematics, and saw that the pins had external pull down resistors.. Once they were removed, they behave like every other GPIO.
- smilykoch
- Posts: 8
- Joined: Mon Jul 13, 2015 8:04 am
Re: Disable internal pulldown on G#23, G#24, G#25 and G#26
Hmm.. New problem? It seems the pull down resistors are used during bootstrapping for selecting DRAM config and clk select? Is there any way to get the desired behavior of correct boot, but using the GPIOs of PHY_LED, as regular GPIO inputs?
Cheers.
Cheers.
- Vonger
- Posts: 897
- Joined: Sun Oct 19, 2014 6:00 am
Re: Disable internal pulldown on G#23, G#24, G#25 and G#26
Pulldown/up is necessary. And it will not effect output signal.
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