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Herry

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Joined: 31/05/2014
Location: Australia
Posts: 261

Posted: 10:23am 25 Oct 2016

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Odd problem

I am using the 28 pin MM with 4.6. I am trying to get a program to work that uses 8 digital inputs (switches) and four digital outputs. Although they are apparently available, at the DIN lines pins 2 and 5 give the error 'Pins reserved at startup'. How can I resolve this? the pins appear in the pinout diagram to be available for digital use. Those DIN lines are near the start of my program. The program does not use those pins for anything else.

Senior?! �Whatever it says, I'm a complete and utter beginner...

palcal

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Joined: 12/10/2011
Location: Australia
Posts: 1982

Posted: 10:48am 25 Oct 2016

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I think that happened to me once and found it was that I had previously used a TFT with the chip and had not disabled it.
Paul.

"It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all"

Herry

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Joined: 31/05/2014
Location: Australia
Posts: 261

Posted: 11:02am 25 Oct 2016

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Exactly how do I clear out anything like that?

Senior?! �Whatever it says, I'm a complete and utter beginner...

Zonker

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Joined: 18/08/2012
Location: United States
Posts: 767

Posted: 01:26pm 25 Oct 2016

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Humm...

I was looking at v4.6 B26 PDF manual and I don't see any support for TFT displays.

There is the character LCD units supported...

Maybe a good time to update to the latest firmware, if possible...

If so, you could just type: option list at the command prompt..

I didn't see any Library functions either...

What does the printout say when you enter: Memory at the command prompt..?

Typing: NEW should clear everything... (i think)

TassyJim

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Joined: 07/08/2011
Location: Australia
Posts: 6269

Posted: 04:17pm 25 Oct 2016

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I do remember some issues with PINs showing as reserved but I forget which versions of MMBasic were involved.

From the V4.6 manual:

Quote MMBasic can be reset to its original configuration using either one of two methods:

1. The chip can be reprogrammed with the Micromite firmware using a PIC32 programmer.

2. It can be reset by joining the console Tx and Rx pins together and then applying power. Following this,
wait a couple of seconds then remove the power followed by the link joining the two pins.

Either method will result in the program memory and saved variables being completely erased and all options
(security PIN, console baud rate, etc) will be reset to their initial defaults.

Method 2 is worth a try but flashing the latest version of MMBasic is a good idea.

Jim

VK7JH
MMedit

Geoffg

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Joined: 06/06/2011
Location: Australia
Posts: 3282

Posted: 06:15pm 25 Oct 2016

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As far as I remember there was no error saying "Pins reserved at startup" in V4.6.

Geoff

Geoff Graham - http://geoffg.net

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