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Mixtel90

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Joined: 05/10/2019
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Posted: 03:40pm 01 Jun 2021

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Don't feel bad about it - it works very nicely now. :)

(Gets that feeling of been there, done that...)

Edit: And FLASH ERASE ALL got implemented too. :)
Edited 2021-06-02 05:16 by Mixtel90

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10000

Posted: 09:37pm 01 Jun 2021

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a10

PicomiteV5.07.00a10.zip

SETPIN n, DOUT/DIN
PIN(n)=
?PIN(n)

all now working for simple digital I/O

n can be a pin number (1-41), a variable, or a GP id (e.g. GP25)

pin 41/GP25 is the LED. By default this is the heartbeat but it can be controlled by setting SETPIN 41,DOUT or SETPIN GP25,DOUT

To return to use as the heartbeat use SETPIN 41,heartbeat or setpin GP25,heartbeat

TassyJim

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Joined: 07/08/2011
Location: Australia
Posts: 6211

Posted: 09:47pm 01 Jun 2021

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Now is probable a good time to warn users:

ALL IO pins are strictly 3.3V only
Just like the RPi. No 5V tolerant pins.

Jim

VK7JH
MMedit

lizby
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Joined: 17/05/2016
Location: United States
Posts: 3299

Posted: 10:14pm 01 Jun 2021

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Flashing a pin working:

PicoMite MMBasic Version 5.07.00a10
Copyright 2011-2021 Geoff Graham
Copyright 2016-2021 Peter Mather
> setpin 21,dout
Here2
8, 21
> do: pin(21)=1: pause 1000: pin(21)=0: pause 1000: loop

Out of curiosity, what is "Here2" supposed to indicate?

PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed

Plasmamac

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Joined: 31/01/2019
Location: Germany
Posts: 570

Posted: 10:23pm 01 Jun 2021

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Same here

btw : love the flash list with the first line .

Plasma

Plasmamac

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Posts: 570

Posted: 11:36pm 01 Jun 2021

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setpin (GP25,dout)
print pin(GP25)

schows :268659952

Plasma

TassyJim

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Location: Australia
Posts: 6211

Posted: 12:23am 02 Jun 2021

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Strange number formatting:
(redone to make it easier to see the problem).

dim float x,y,z
x = 5
y = 0.000001
z = x-y
print z

x = 50
y = 0.000001
z = x-y
print z

x = 5
y = 0.000001
z = x+y
print z

x = 50
y = 0.000001
z = x+y
print z

> RUN
4.999999
49./99999
5.000001
50.000001

Jim
Edited 2021-06-02 13:41 by TassyJim

VK7JH
MMedit

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10000

Posted: 07:08am 02 Jun 2021

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a11

PicomiteV5.07.00a11.zip

fixes reported bugs

Quote Now is probable a good time to warn users:

ALL IO pins are strictly 3.3V only
Just like the RPi. No 5V tolerant pins.

Jim

Correct, and also the Pico doesn't support open collector outputs

NB timer now accurate to the uSec from a10 onwards

Also remember new alphas are likely to bugger program stored in flash as I add new commands and the tokens change
Edited 2021-06-02 17:19 by matherp

TassyJim

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Posted: 07:23am 02 Jun 2021

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No open-collector is a bugger. I see lots of external transistors/fets

Do you have any insight into the interrupt capabilities of the IO pins?

Jim

VK7JH
MMedit

Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 7464

Posted: 07:33am 02 Jun 2021

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If working on a breadboard connect Vbus and Vsys with care - they carry the input voltage. 3v3 can give 300mA output.

Also, watch the IO current capacity on the Pico. The *total* IO output current is only 50mA, so don't plaster the poor little thing in 20mA LEDs. 3mA is plenty for most LEDs now.

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

matherp
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Joined: 11/12/2012
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Posts: 10000

Posted: 08:01am 02 Jun 2021

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Quote Do you have any insight into the interrupt capabilities of the IO pins?

Just about to play with this - what are you after?

OC you can simulate by switching between output low and input but the 3.3V limit is absolute

Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 4815

Posted: 08:01am 02 Jun 2021

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removed
Edited 2021-06-02 18:02 by Volhout

PicomiteVGA PETSCII ROBOTS

Grogster

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Joined: 31/12/2012
Location: New Zealand
Posts: 9458

Posted: 08:09am 02 Jun 2021

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Got mine going easy-peasy. The setup idea of just copying the UF2 file to the 'Flash drive' that the PICO shows up as, is pure elegance.

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

Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 7464

Posted: 08:18am 02 Jun 2021

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Yep - that has to be the easiest firmware upgrade of anything. Bar the token changes during development it doesn't affect what's stored in flash either. It's great. :)

If you leave Tera Term connected throughout, on the command screen, it simply restarts after the upgrade and prints the new message.

Adding a reset button is nice. Hold it down, press Bootsel & release. Ready for programming.

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

Grogster

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Posted: 08:58am 02 Jun 2021

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I have also tried removing uUSB plug and replacing - restarts fine.
I note that some have had issues here.
I am removing the plug fast, and replacing it fast - PICO restarts fine every time.

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

Grogster

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Posted: 09:08am 02 Jun 2021

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TT works just fine, but GFXterm(my go-to term) refuses to talk to to the PICOmite in any way at all. No matte the baud-rate.

This is interesting. TT and GFXterm are essentially terminal emulators, so I would have expected both to respond.

Rob? (GFXterm writer)

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

matherp
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Location: United Kingdom
Posts: 10000

Posted: 10:18am 02 Jun 2021

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a12

PicomiteV5.07.00a12.zip

MEMORY should now work

analogue input available on pins GP26,GP27, and GP28 (setpin n,ain)
This is based on the setting of temporary OPTION VCC which defaults to 3.3V

? PIN(TEMP) to read the die temperature of the chip

FLASH ERASE ALL is useful for new releases

Quote GFXterm(my go-to term) refuses to talk to to the PICOmite in any way at all.

MMEDIT didn't either until Jim did something
Edited 2021-06-02 20:34 by matherp

disco4now

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Joined: 18/12/2014
Location: Australia
Posts: 965

Posted: 10:46am 02 Jun 2021

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SDCARD (A12 version)
When FILES or ? MM.INFO$(SDCARD) are entered a second time then the second one fails with Error : Pin 4 is reserved on startup. If SDCARD is present its OK.
You need to do an OPTION RESET to recover from it.

> ? mm.info$(SDCARD)
Not present
> ? mm.info$(SDCARD)
Error : Pin 4 is reserved on startup
> option reset

> files
Error : SD Card not found
> files
Error : Pin 4 is reserved on startup
>

Edited 2021-06-02 20:53 by disco4now

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Volhout
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Location: Netherlands
Posts: 4815

Posted: 12:26pm 02 Jun 2021

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@Peter,

Do you use version control. Can you make a delta between a1 and a2 ?
I am currently spending time to find a cause for the pi not running with anything newer than a1, without knowing in what area's to look. What did you change ?

I am offering to send the board over to you.

Volhout

PicomiteVGA PETSCII ROBOTS

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10000

Posted: 01:01pm 02 Jun 2021

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Quote Do you use version control.

PM sent. No version control during alpha phase - sorry

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