Okay gotcha. Would you agree with my logic in the first part then (about the beaglescript)?
Sent via the Samsung Galaxy S® 6, an AT&T 4G LTE smartphone-------- Original message -------- From: Gerald Coley <[email protected]> Date: 07/09/2015 8:33 AM (GMT-05:00) To: [email protected] Subject: Re: [beagleboard] Pin Acting Odd I can't speak for the SW implementations. I just know how the board was designed. Gerald On Thu, Jul 9, 2015 at 7:31 AM, <[email protected]> wrote: Okay I think I see what you are saying. The MODE0 for GPIO3_21 is "mcasp0_ahclkx", so with that beaglescript code, when I say "b.pinmode("P9_25",b.output)" it is outputting the results of the MODE0 (clock generator output) and not the MODE7(GPIO output) as I had expected? But if this were the case, in my Python ADAfruit code, I explicitly set that pin to GPIO, so shouldn't behave like that? Thanks for your help, really trying to get a solid grasp on these concepts! -Joe On Wednesday, July 8, 2015 at 10:14:00 PM UTC-4, Gerald wrote:Take a look at the schematic. GPIO3_21 is connected to the output of a clock generator. To use it you must disable the Oscillator. Oscillator can be disabled via SWfor power down modes or ifGPIO3_21 needs to be used My suggestion is to pick another pin to work with. Less headaches. Gerald On Wed, Jul 8, 2015 at 8:47 PM, <[email protected]> wrote: Hey all, I am pretty new to the BBB and I came across something pretty odd that I have been trying to figure out for a few hours now as I was creating a push button circuit: P9_25 is a GPIO pin. I set it to input but noticed that it would not respond to my button. After some digging I realized that the pin itself was acting funky, so I isolated it to run some tests with BB's Bonescript tutorial on GPIO digitalWrite(). I ran this code below (apologies for the sloppy picture) with the adjacent circuit configuration shown as well. Obviously, the LED should turn off, but it doesn't: I then tried the same tests on other pins, such as P9_26, and it worked perfectly, so that's where I'm startled. I have two theories: 1) I messed with P9_25 in the past, and it is reconfigured in a weird way; if someone has this hunch, could you please perhaps inform me how to reset the pin to its original glory? 2) The pin is busted. Fingers crossed for #1. If anybody has run into something similar, or has any idea what I should do, please let me know! Thank you for you time. -Joe -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. -- Gerald [email protected] http://beagleboard.org/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. -- Gerald [email protected] http://beagleboard.org/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to a topic in the Google Groups "BeagleBoard" group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/beagleboard/UpeUMNBIkKU/unsubscribe. To unsubscribe from this group and all its topics, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
