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allie
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Joined: 06/10/2018
Location: Canada
Posts: 88

Posted: 10:49am 30 Jun 2025

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The Pico's RP2040 that I have been using, I had to solder the headers on myself, maybe I did some damage to them.
This time I just Up loaded the 6.00.02 firmware to another RP2040 that I bought with the headers already soldered on. I'll program the Quadrature Decoder Program in this unit today and I let you know how this works.

Regards Allie

phil99

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Joined: 11/02/2018
Location: Australia
Posts: 2602

Posted: 01:29pm 30 Jun 2025

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Try this from the command line.

> SetPin GP21,GP20,COM2 : Open "com2:115200" As #2
> Print #2, "jumps over the lazy dog" : pause 9 'allow time to transmit
>

Does that also produce an error?

allie
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Joined: 06/10/2018
Location: Canada
Posts: 88

Posted: 09:29am 01 Jul 2025

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phil99 said Try this from the command line.

> SetPin GP21,GP20,COM2 : Open "com2:115200" As #2
> Print #2, "jumps over the lazy dog" : pause 9 'allow time to transmit
>

Does that also produce an error?

Still trying to do what you asked. It's not working yet and I have to get ready for work now. I'll try it again later.

Allie

allie
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Joined: 06/10/2018
Location: Canada
Posts: 88

Posted: 09:43am 02 Jul 2025

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allie said

phil99 said Try this from the command line.

> SetPin GP21,GP20,COM2 : Open "com2:115200" As #2
> Print #2, "jumps over the lazy dog" : pause 9 'allow time to transmit
>

Does that also produce an error?

Still trying to do what you asked. It's not working yet and I have to get ready for work now. I'll try it again later.

Allie

I put the PicoMite on my Propeller professional development board and tested GP20 AND GP21 PINS FOR INPUT AND OUTPUT with push button for input and led for output.
I checked GP20 for input and output with the DIN and DOUT COMMANDS. I did the same for GP21 and all works good, so it's not a hardware issue. Comms not working is a software issue. I'll work on it the next time I get a chance using phi199's post above.

Regards Allie

allie
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Joined: 06/10/2018
Location: Canada
Posts: 88

Posted: 08:46am 04 Jul 2025

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allie said

phil99 said Try this from the command line.

> SetPin GP21,GP20,COM2 : Open "com2:115200" As #2
> Print #2, "jumps over the lazy dog" : pause 9 'allow time to transmit
>

Does that also produce an error?

Still trying to do what you asked. It's not working yet and I have to get ready for work now. I'll try it again later.

Allie

I put the PicoMite on my Propeller professional development board and tested GP20 AND GP21 PINS FOR INPUT AND OUTPUT with push button for input and led for output.
I checked GP20 for input and output with the DIN and DOUT COMMANDS. I did the same for GP21 and all works good, so it doesn't seem to be a hardware issue. Comms not working is a software issue. I'll work on it the next time I get a chance using phi199's post above.

Regards Allie

Yes this also produces the error codes.
I'm going to update the firmware again and this time I'm going to use clear_flash first. Then update the firmware.

regards Allie

Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 5044

Posted: 11:45am 04 Jul 2025

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Allie,

I am totally confused.

Please update the firmware to the latest, as you planned to do (including clear flash).. Just to make sure nothing is hidden in a library, that you forgot about.

Double check the file name, that there is no word "HDMI" or "VGA" or "USB" in the filename that you put in the board. And make sure to use 2040 with a pico board and 2350 with a pico-2 board.

Then do nothing (no OPTIONS, nothing at all). Just the blank PicoMite install. Connect via USB cable to the pico(-2) using Teraterm or Putty.
Then type (commandline from Teraterm or Putty) above 3 lines.

> setPin gp21,gp20,com2
> open "com2:115200" as #2
> print #2, "jumps over the lazy dog"

Now you have tested only sending text. Not receiving.

Do you get an error ?

When the answer is YES, then type OPTION LIST, and post the text here. Also include a photo of the board you are using in that post, and the error text.

Volhout
Edited 2025-07-04 21:53 by Volhout

PicomiteVGA PETSCII ROBOTS

allie
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Joined: 06/10/2018
Location: Canada
Posts: 88

Posted: 08:39pm 04 Jul 2025

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Volhout said Allie,

I am totally confused.

Please update the firmware to the latest, as you planned to do (including clear flash).. Just to make sure nothing is hidden in a library, that you forgot about.

Double check the file name, that there is no word "HDMI" or "VGA" or "USB" in the filename that you put in the board. And make sure to use 2040 with a pico board and 2350 with a pico-2 board.

Then do nothing (no OPTIONS, nothing at all). Just the blank PicoMite install. Connect via USB cable to the pico(-2) using Teraterm or Putty.
Then type (commandline from Teraterm or Putty) above 3 lines.

> setPin gp21,gp20,com2
> open "com2:115200" as #2
> print #2, "jumps over the lazy dog"

Now you have tested only sending text. Not receiving.

Do you get an error ?

When the answer is YES, then type OPTION LIST, and post the text here. Also include a photo of the board you are using in that post, and the error text.

Volhout

I just did the firmware update and then typed in what you said. There is only one error after the commandline. This is what came on the screen

commandline
ERROR : Unknown command
> setpin gp21,gp20,com2
> open "com2:115200" as #2
> print #2, "jumps over the lazy dog"
>

I think it's working. It came back to the prompt (>).

Regards Allie

> pr

PhenixRising
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Joined: 07/11/2023
Location: United Kingdom
Posts: 1352

Posted: 09:02pm 04 Jul 2025

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Command line is the prompt. It's not an actual command

Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 5044

Posted: 09:08pm 04 Jul 2025

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Each keyboard can have a different key scan of the matrix. What if a key up is detected after the second key down.

In stead of Q down Q up W down W up
It is Q down W down W up Q up

Somethin along these lines.

Volhout

PicomiteVGA PETSCII ROBOTS

allie
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Joined: 06/10/2018
Location: Canada
Posts: 88

Posted: 10:16pm 04 Jul 2025

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PhenixRising said Command line is the prompt. It's not an actual command

Thanks for the help. Can I send the above "jumps over the lazy dog" from COM2 to another COM2 with a different as#((N)1 to 10) on the same MaxiMite, to print it to the screen.

Allie

allie
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Joined: 06/10/2018
Location: Canada
Posts: 88

Posted: 10:31pm 04 Jul 2025

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Volhout said Each keyboard can have a different key scan of the matrix. What if a key up is detected after the second key down.

In stead of Q down Q up W down W up
It is Q down W down W up Q up

Somethin along these lines.

Volhout

Thanks for the help getting this set up.
Question : when I hook the PicoMite being powered from the Laptop to the CMM2 GEN2 which is being powered by an adapter, with the COM's TX and RX, I know the grounds also need to be hooked. When I turn one on first will it do damage to the other one. I'm thinking I should put switches on the wires coming from the pins.

Regards Allie

allie
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Joined: 06/10/2018
Location: Canada
Posts: 88

Posted: 10:36pm 04 Jul 2025

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allie said

PhenixRising said Command line is the prompt. It's not an actual command

Thanks for the help. Can I send the above "jumps over the lazy dog" from COM2 to another COM2 with a different as#((N)1 to 10) on the same PicoMite, to print it to the screen.

Allie

I just changed MaxiMite to PicoMite

Regards Allie

phil99

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Joined: 11/02/2018
Location: Australia
Posts: 2602

Posted: 10:40pm 04 Jul 2025

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Quote > setpin gp21,gp20,com2
> open "com2:115200" as #2
> print #2, "jumps over the lazy dog"
>

I think it's working. It came back to the prompt (>).

Excellent! It will probably be ok for receive as well but if you want to be sure try this.

Put a jumper from GP20 to GP21 and do the following:-

> setpin gp21,gp20,com2 :open "com2:115200" as #2 :print #2, "jumps over the lazy dog"
> ? loc(#2), input$(255,#2)
25 jumps over the lazy dog

>

If the text gets echoed all is well.

Quote I'm thinking I should put switches on the wires coming from the pins.

A 1kΩ resistor in the Rx and Tx lines will provide enough protection.
Edited 2025-07-05 08:47 by phil99

allie
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Joined: 06/10/2018
Location: Canada
Posts: 88

Posted: 10:45pm 04 Jul 2025

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phil99 said Try this from the command line.

> SetPin GP21,GP20,COM2 : Open "com2:115200" As #2
> Print #2, "jumps over the lazy dog" : pause 9 'allow time to transmit
>

Does that also produce an error?

I did a new firmware upload to the picomite after doing a clearflash. Then put in the codes you asked me to and it is working.

Thank you for all the help.
Regards Allie

phil99

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Joined: 11/02/2018
Location: Australia
Posts: 2602

Posted: 10:51pm 04 Jul 2025

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Good news. See the edit in my post above yours.

Edit
A demonstration of the need to allow time for all characters to be sent.
Tx linked to Rx as before.

> print #2, "jumps over the lazy dog" :pause 3 :? loc(#2), input$(255,#2)
25 jumps over the lazy dog

> print #2, "jumps over the lazy dog" :pause 1 :? loc(#2), input$(255,#2)
13 jumps over the la
>

Edited 2025-07-05 09:02 by phil99

allie
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Joined: 06/10/2018
Location: Canada
Posts: 88

Posted: 05:25am 05 Jul 2025

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phil99 said Good news. See the edit in my post above yours.

Edit
A demonstration of the need to allow time for all characters to be sent.
Tx linked to Rx as before.

> print #2, "jumps over the lazy dog" :pause 3 :? loc(#2), input$(255,#2)
25 jumps over the lazy dog

> print #2, "jumps over the lazy dog" :pause 1 :? loc(#2), input$(255,#2)
13 jumps over the la
>

Thanks again for the above info and the info about the resistors on the TX and RX lines.
So, if the same com port can echo back the sent TX to the RX pin, then I think that one com port can send TX to another com port's RX on the same PicoMite. Am I thinking right.

Regards Allie

phil99

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Joined: 11/02/2018
Location: Australia
Posts: 2602

Posted: 05:46am 05 Jul 2025

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Quote Am I thinking right.

yes!

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