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Grogster

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Joined: 31/12/2012
Location: New Zealand
Posts: 9610

Posted: 07:01am 04 Jul 2022

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Hello all.

Do any CSUB's exist for the PicoMite, that bitbang serial?
I'm looking for the equivalent of the SerialTx and SerialRx Cfunctions for the standard MM series of chips.

I often need MORE then two COM ports, and this is a bit of a brickwall for me at the moment with the PICO - only two COM ports.

I'm grateful for the two that DO exist, but has anyone - Peter? - done serial TX and RX CSUB's for the Pico module?

The TX one is the one I use the most.

Smoke makes things work. When the smoke gets out, it stops!

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10315

Posted: 10:44am 04 Jul 2022

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Grogster

Try this experimental version on a PicoMite (not VGA)

PicoMite.zip

BITBANG SERIALTX pinno, baudrate, ostring$
BITBANG SERIALRX pinno, baudrate, istring$, timeout_in_ms, status% [,nbr] [,terminators$]

e.g.

BITBANG SERIALTX 4, 115200, "Hello world"
BITBANG SERIALRX 5, 115200, a$, 10000, s%, ,chr$(10)

status% returns:
-1 = timeout (NB: use len(s$) to see number received)
2 = number of characters requested satisfied
3 = terminating character satisfied
Edited 2022-07-05 01:38 by matherp

Grogster

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Posted: 11:38pm 04 Jul 2022

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Wow - thank you. �

I have jobs to do today, but I will check this out and report back later tonight.

EDIT: The serialtx one seems to work perfectly. �

Have tested a few baudrates up to 115k2, all of which are working fine. �Not sure if there is an upper limit to the baudrate?

I will have a play with the serialrx one now, and will post back with results.

EDIT: Serialrx also works beautifully.

Any chance this can be added to the standard firmware and also the VGA version Peter?

Edited 2022-07-05 15:04 by Grogster

Smoke makes things work. When the smoke gets out, it stops!

Volhout
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Joined: 05/03/2018
Location: Netherlands
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Posted: 06:26am 05 Jul 2022

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Grogster said
Any chance this can be added to the standard firmware and also the VGA version Peter?

PicomiteVGA PETSCII ROBOTS

Geoffg

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Joined: 06/06/2011
Location: Australia
Posts: 3292

Posted: 10:51am 05 Jul 2022

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These are CSubs so they don't need to be "added to the standard firmware", you can just include them in your program.

I can add them to the PicoMite download.

Geoff

Geoff Graham - http://geoffg.net

Volhout
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Posted: 11:07am 05 Jul 2022

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@Geoff,

Unless I am mistaken, the CSUB's are already part of beta #14. Peter is faster than lightning...

Flash....

Volhout

PicomiteVGA PETSCII ROBOTS

matherp
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Posted: 11:14am 05 Jul 2022

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They actually needed quite a lot of work as they depend on tight timing and fast I/O so the CSUBs wouldn't have worked and it was easier to incorporate them into the firmware

Geoffg

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Posted: 06:09am 06 Jul 2022

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Agah, my mistake.

Geoff Graham - http://geoffg.net

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