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Bleep
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Joined: 09/01/2022
Location: United Kingdom
Posts: 622

Posted: 07:30pm 12 Feb 2022

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Hi Peter,
Sorry, in that case I must have wired it up wrong :-( I'll try again with your settings, if I can get it working, it would be great, using a whole Pi, even an old one, just to be a clock, did seem like a waste. Many thanks for all your hard work.
Regards Kevin
I'll post pics with case & larger screen once I succeed :-)

Bleep
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Joined: 09/01/2022
Location: United Kingdom
Posts: 622

Posted: 08:18pm 12 Feb 2022

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Hi Peter,
Of course it's working perfectly :-)
It was the link you gave me to your 2017 post for the correct pin wiring that fixed it, I was using some incorrect pin wiring information :-( Thank you for pointing me in the right direction, might it be worth putting the correct pin wiring in the user manual, (and the fact that your 9481 driver also works with 9486 displays) I'd have never found that post without your help.
Regards, Kevin.
Edited 2022-02-13 08:33 by Bleep

Bleep
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Joined: 09/01/2022
Location: United Kingdom
Posts: 622

Posted: 11:40am 13 Feb 2022

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I have also found that on my display, there was a resistor labeled "LED Function" which when I traced it through looked like by moving it to a second location I could activate the variable back light, which comes out on pin 15 of the LCD connector, and it works. :-)
Regards, Kevin.

panky

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Joined: 02/10/2012
Location: Australia
Posts: 1114

Posted: 11:16pm 13 Feb 2022

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Tried the following:-

?mm.ver
5.070402
> ? mm.device$
PicoMite
> memory
Program:
1K ( 1%) Program (5 lines)
123K (99%) Free

RAM:
0K ( 0%) 0 Variables
0K ( 0%) General
156K (100%) Free
> list
CLS
Option gui controls 10 ' failing line
Print "made it here!" ' in fact, we did NOT make it here!!
GUI displaybox #1,100,100,100,50,RGB(blue),RGB(red)
CtrlVal(#1) = "Test"
> run
' at this point the Picomite drops connection,
' having failed at the OPTIONS GUI CONTROLS line
' Re connecting and pressing Enter returns the prompt
>

Seems that the
OPTION GUI CONTROLS 10
is crashing the system.

Doug.

... almost all of the Maximites, the MicromMites, the MM Extremes, the ArmMites, the PicoMite and loving it!

panky

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Joined: 02/10/2012
Location: Australia
Posts: 1114

Posted: 03:29am 14 Feb 2022

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Apologies Peter, please ignore the post re CONTROLS. I misunderstood usage - the command can only be run from the command line and the disconnect/re-connect is the same as setting other options.

Thanks for a great program,
Doug.

... almost all of the Maximites, the MicromMites, the MM Extremes, the ArmMites, the PicoMite and loving it!

Bleep
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Joined: 09/01/2022
Location: United Kingdom
Posts: 622

Posted: 11:59am 16 Feb 2022

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Finished 3.5" Raspberry Pi touch display, attached to a Pico, & RTC, in a perspex case that came with the display, Display on Ebay.
Many thanks to Peter for PicoMite and pointing me in the correct direction for connecting the diplay and the fact that even though it was a ILI9486, the PicoMite ILI9481 driver worked fine, which it does. :-) Because I got the back screen brightness working I have also done automatic brightness, depending on time of year and time of day, it can be overriden with the touch screen brightness control.
Thanks to all involved,
Regards, Kevin.

Edited 2022-02-16 22:14 by Bleep

Frank N. Furter
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Joined: 28/05/2012
Location: Germany
Posts: 946

Posted: 11:47am 17 Feb 2022

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@Bleep:
Thank you very much for your phantastic project:

Currently still without RTC...

@homa
...and thanks for pointing out the beautiful display! (https://www.thebackshed.com/forum/ViewTopic.php?FID=16&TID=14512)

Frank

Amnesie
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Joined: 30/06/2020
Location: Germany
Posts: 576

Posted: 03:12pm 17 Feb 2022

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Impressive project! Cool!

Bleep
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Joined: 09/01/2022
Location: United Kingdom
Posts: 622

Posted: 08:11pm 17 Feb 2022

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Hi Frank, Sorry, I haven't updated the original post with the latest, which will fill a 480*320 screen, See below.
Regards Kevin.

solarsys.zip
Edited 2022-02-19 02:35 by Bleep

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10180

Posted: 05:53pm 22 Feb 2022

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PicoMite/PicoMiteVGA V5.07.04b4

https://geoffg.net/Downloads/picomite/PicoMite_Beta.zip

Implements READ SAVE and READ RESTORE
These allow a subrountine to read its own data whilst preserving the data pointers for the main program
e.g.

dim a(20)
data 0,1,2,3,4,5,6,7,8,9
data 10,11,12,13,14,15,16,17,18,19
for i=0 to 13
read a(i)
next i
readmydata
for i=14 to 19
read a(i)
next i
for i = 0 to 19
if a(i)<>i then print i,"ERROR",a(i)
next i
end
'
sub readmydata
local s$(7)
local i
read save
restore testlabel
for i=0 to 6
read s$(i)
next i
read restore
for i = 0 to 6
print s$(i);
next i
print ""
end sub
testlabel:
data b,c,d,e,f,g,h

Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 5021

Posted: 06:23pm 22 Feb 2022

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@Peter,

I have looked into using the picomite as a smart IO device for MMB4W/MMB4L, and could use 1 feature that is currently not available to ease the implementation a lot.

I could use a OPTION CONSOLE ECHO ON/OFF
The option is preferably volatile, to avoid confusion when someone uses it and afterwards wants to interact on commandline.

Currently MMBasic on picomite echo's all characters send from keyboard to screen (when using Putty/Teraterm). So the picomite sends everything you send to it, back.
For using the picomite as a serial IO block, it is a lot easier if it would not do this. Only output what you order it to print, and the acknowledging ">" prompt when in commandline mode.

Not sure how deep this is burried in MMBasic.

Main reason for asking this is that I want MMB4W to send commands to the picomite (either commandline, or to a running basic program) and the program completely autonomously could send data back (i.e. communicate an interrupt). These data streams (text) can interleave, and it is very hard to separate them later. You really have to analyze what you did send, and subtract that from the incomming message.

Or maybe you see another way of doing this ?

Regards,

Volhout

PicomiteVGA PETSCII ROBOTS

Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 7817

Posted: 07:02pm 22 Feb 2022

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On my I2C expansion module design I included an open-collector interrupt line (yes, it's non-standard!) The idea is that no matter how many modules you have, if one triggers the interrupt then the host will read a fixed address on all the modules. A bit set indicates the cause of the interrupt. The host deals with it then resets the flag. That's the idea anyway. It's untested at the moment. :)

I'm not sure about sending command line commands to the PicoMite. What happens if one doesn't do what's intended? The host has no control and the watchdog isn't running. Serial control over the COM port(s) is fine as error trapping works.

Mick

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

thwill

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Joined: 16/09/2019
Location: United Kingdom
Posts: 4298

Posted: 07:15pm 22 Feb 2022

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Volhout said Currently MMBasic on picomite echo's all characters send from keyboard to screen (when using Putty/Teraterm). So the picomite sends everything you send to it, back.

I'm reasonably certain a program running on the PicoMite using INKEY$ to read from the console does not echo what it receives. It does echo when using INPUT$ through.

If you are looking for an elaborate example of MMBasic (MMB4L in this case) driving another 'mite over the USB console then I can point you at:

https://github.com/thwill1000/cmm2-sptools/tree/master/src/gonzo

I hadn't intended to "publish" yet as it's incomplete and I probably don't have time to support you, but *perhaps* it might be of interest if you're prepared to work for your gratification

.

Best wishes,

Tom

MMBasic for Linux, Game*Mite, CMM2 Welcome Tape, Creaky old text adventures

Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 5021

Posted: 07:15pm 22 Feb 2022

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I am not sure how to get an interrupt from picomite into a laptop, other than sending rs232 data.

PicomiteVGA PETSCII ROBOTS

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10180

Posted: 07:35pm 22 Feb 2022

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Quote I'm reasonably certain a program running on the PicoMite using INKEY$ to read from the console does not echo what it receives.

Correct - just write a little program that loops on inkey$, collects the characters until CR then do a switch on the received command

lizby
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Joined: 17/05/2016
Location: United States
Posts: 3347

Posted: 08:07pm 22 Feb 2022

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Volhout said using the picomite as a smart IO device for MMB4W/MMB4L

It wouldn't hurt to use Geoff's I2C master/slave mechanism (repurposed as serial, CR delimited) as shown in the "I2C Communications" in the Getting Started With the Micromite manual, at least for setting up and using pin I/O.

Then if the CMM2 EXECUTE command were available on the Picomite, serial strings beginning with, say "!" could be run with EXECUTE "command string".

And other tokens could be enabled.

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

Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 7817

Posted: 08:12pm 22 Feb 2022

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@ Volhout

You can't actually do interrupts as such over RS232 as standard. You could use one of the control pins such as DTR but you'd have to have a custom handler in the host to cause that to trigger an interrupt - and it's another wire. The alternative is for the host to keep testing the RX buffer to see if there's anything there, but that's not an interrupt.

I can't actually think of a way to reliably get an interrupt into a laptop on a standard system. I'm not sure if windows does such things, although linux might.

Mick

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

Volhout
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Location: Netherlands
Posts: 5021

Posted: 08:40pm 22 Feb 2022

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All,

Thanks for the idea's. I think it can be done, but not as I intended.

The original idea was to attach a picomite, and use the commandline interface as if you where running on the picomite itself. The picomite needed only have MMBAsic.

Example: a picomite program could blink a LED attached to pin1

Setpin 1,dout
a=0
do
pause 500
pin(1)=a
a=1-a
print a
loop

MMB4W would execute

Serialsend "Setpin 1,dout"
Serialsend "a=0"
do
pause 500
Serialsend "pin(1)=a"
Serialsend "a=1-a"
Serialsend "print a"
Serialreceive a$ 'serial receive will receive until it finds the ">" prompt
Print a$
loop

So it is not going to be that simple. You need a program in the picomite that is tailor made for your application AND a program in the laptop that is tailormade for the application. You cannot simply (running your basic program) receive the string "Setpin 1,dout" and execute it.
-or-
The picomite needs a program that is universal and can do anything to any pin, and the protocol used to do anything to any pin must be developed. I think for Arduino something like that does already exist. I will try to find it, just can't remember what it was called.

PicomiteVGA PETSCII ROBOTS

TassyJim

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Joined: 07/08/2011
Location: Australia
Posts: 6266

Posted: 08:43pm 22 Feb 2022

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Mixtel90 said @ Volhout

You can't actually do interrupts as such over RS232 as standard. You could use one of the control pins such as DTR but you'd have to have a custom handler in the host to cause that to trigger an interrupt - and it's another wire.

MMBasic4W has the same interrupt capability as (most) other MMBasics.
Just specify an interrupt in the serial initialisation.

The program just has to work out what the data refers to when it gets there.

Sometimes, polling is better but the interrupt method is available out of the box.

Jim

VK7JH
MMedit

Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 5021

Posted: 08:45pm 22 Feb 2022

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lizby said

Volhout said using the picomite as a smart IO device for MMB4W/MMB4L

I will study your proposal. It may well fit on the serial port.

PicomiteVGA PETSCII ROBOTS

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