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Forum Index : Microcontroller and PC projects : PicoMite Alpha Firmware - a27 onwards - starting on displays

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lizby
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Joined: 17/05/2016
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Posted: 06:08pm 23 Jun 2021

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Mixtel90 said It's the singing dog syndrome - it's not that it doesn't sing well, it's a miracle it can sing at all. :)

Miracles brought to you compliments of MMBasic

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

lizby
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Posted: 06:21pm 23 Jun 2021

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matherp said a35 . . . Touch now working

Excellent, but

PicoMite MMBasic Version 5.07.00a35
Copyright 2011-2021 Geoff Graham
Copyright 2016-2021 Peter Mather

> option list
OPTION SDCARD GP5, 10
OPTION SYSTEM SPI GP2,GP3,GP4
OPTION LCDPANEL ILI9341, LANDSCAPE,GP20,GP19,GP18
OPTION TOUCH GP22,GP21
> load "ccpico.bas"
> RUN
[808] GUI interrupt touchInt
Error : Unknown command
>

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Mixtel90

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Posted: 06:25pm 23 Jun 2021

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I'm starting to feel the urge to design a replacement MicroMite backpack pcb to take the PicoMite instead of the MX170. :)

Mick

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

matherp
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Posted: 06:31pm 23 Jun 2021

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Quote Excellent, but

Was it in my list of what was implemented?

Mixtel90

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Posted: 06:47pm 23 Jun 2021

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@matherp

"NB: the buzzer on my Maker card completely kills the processor if I try and use it - another power issue?"

Interesting... I wonder if they used a magnetic "buzzer" i.e. speaker rather than a piezo buzzer? Just switching a speaker across 3.3 might bee a fair load. Their circuit diagram isn't helpful, other than showing that it's driven by a mosfet..

Mick

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Preliminary MMBasic docs & my PCB designs

matherp
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Posted: 06:51pm 23 Jun 2021

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Quote EDIT: When I wrote of building a games console these are the displays I have in mind initially:

You can drive a 8x8 array of RGB WS2812 LEDs with one pin

Quote Dim b%(63)
SetPin 2,dout
Do
For i=0 To 63
b%(i)=RGB(Rnd()*10,Rnd()*10,Rnd()*10)
Next i
Bitbang ws2812 s,2,64,b%()
Pause 500
Loop

thwill

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Joined: 16/09/2019
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Posted: 07:03pm 23 Jun 2021

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matherp said You can drive a 8x8 array of RGB WS2812 LEDs with one pin ...

Nice, but they aren't cheap are they ? May as well use an LCD panel at that price.

At the moment I think I get more joy out of driving an LED matrix from 16 pins and a bunch of discrete transistors ... baby steps.

Best wishes,

Tom

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

lizby
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Posted: 07:38pm 23 Jun 2021

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Mixtel90 said I'm starting to feel the urge to design a replacement MicroMite backpack pcb to take the PicoMite instead of the MX170. :)

Probably premature, and not exactly MM2 backpack style, but I think all the parts are now in place (PCBs untested).

PicoMite hat with SPI LCD (ILI9341 or ILI9488), SD module, ESP-01 module, RTC module and 20x2 expansion port allowing 2 Com, 2 I2C, 2 SPI ports, 3 ADCs, PWM and a few free pins:

Gerbers (for sending to, for example, JLCPCB.com): picomite_mcp1.2_2021-06-23.zip
Eaglecad sch & pcb files: picomite_1.2.zip

And the same with a socket for an MCP23017 module to add 16 more (simple) I/Os:

Gerbers: picomite_mcp2.2_2021-06-23.zip

And Eaglecad files:picomite_mcp2.2.zip

JLCPCB cost for 5 of the first and 10 of the second with slow boat shipping to Canada, $21.39US.

~
Edited 2021-06-24 05:56 by lizby

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Mixtel90

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Posted: 07:58pm 23 Jun 2021

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thwill said

matherp said You can drive a 8x8 array of RGB WS2812 LEDs with one pin ...

For a small quantity (strips of 8 for 1UKP):
https://www.bitsbox.co.uk/index.php?main_page=product_info&cPath=252&products_id=3532
Edited 2021-06-24 05:59 by Mixtel90

Mick

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

lizby
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Posted: 12:08am 24 Jun 2021

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Could the BLIT buffers be cleared at the start of a program so this 4-line program could be run twice without having to power cycle in between (F4 is the same)?

> list
CLS RGB(red)
Blit read #1,0,0,39,39
CLS RGB(green)
Blit write #1,MM.HRes/2-20,MM.VRes/2-20,40,40
> run
> run
[2] Blit read #1,0,0,39,39
Error : Buffer in use
>

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goc30

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Joined: 12/04/2017
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Posted: 12:11am 24 Jun 2021

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matherp said

goc30 - is your 32GB card formatted FAT32? NB exFAT is not supported

yes I have formatted it before tests

matherp said
Have you followed the guidelines I posted earlier re power etc.?

yes

matherp said
Please try putting a 2R2 or even 10 ohm resistor in the power line to the SDcard with both a 10uF and 0.1uF capacitor across the rails directly at the SDcard

if it is an hardware problem, why it work correctly with version a25??

matherp said
NB the code is now a direct lift from the CMM2

I can read my 32go sdcard on CMM2, without problems

lizby
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Posted: 12:54am 24 Jun 2021

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VegiPete's CrateAway on the Picomite

Zip file with capico.bas and .bmp files for sprites:
capico.zip

Program also runs on F4 with SPI ILI9341 and on the CMM2 in the CrateAway15 folder along with CrateAwaySprites.png and GetFileDialog.inc.

PicoMite on FruitoftheShed

~
Edited 2021-06-24 12:00 by lizby

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phil99

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Joined: 11/02/2018
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Posted: 03:31am 24 Jun 2021

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@Lizby " so apparently there are some ILI9341s which will kill access to the SD card"

Had similar issue on MX170. Either SD or ILI9341 fine on their own no SD if together. eventually tried another ILI9341 and all ok. They were from the same manufacturer so I guess there may be component tolerance issues with things aimed at the hobby market.

disco4now

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Joined: 18/12/2014
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Posted: 04:13am 24 Jun 2021

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matherp said

Quote SDCARD gives SDCARD NOT FOUND after either of the below.
Remove and reinsert the SDCARD
Power restart.

Works for me in all the above with all my cards including two versions of 32GB card ones at both 125000KHz and 250000KHz. I am certain there is no firmware issue but there is clearly an electrical one as evidenced by what disco4now reports. The SDcard is only initialised when it is first accessed so it can't know whether power has just been applied or a restart has happened

SDCARD now OK. Hardware Issue Found - Operator Error
I had what I thought was a 4.7K pullup on T-CS to prevent errors with Touch affecting the SPI bus. Tried all the power things to no avail. Enabled Touch now it available and SDCARD was OK. Checked the pullup and is was 1Meg and did not pull the pin up. Replaced with 4.7K and disabled touch and SDCARD still good.

Latest F4 Latest H7 FotS

Volhout
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Joined: 05/03/2018
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Posted: 07:04am 24 Jun 2021

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For those in Europe: be aware that of juli-1 incoming foreign shipments the tax rules are changed. There was a free allowance of 22 euro (the cheap Chinese packets). The free allowance is ending. And tax is not killing, but the handling fee is.

On a $4 arduino you pay 0.80 euro tax, no income duties (only over 150 euro, that remains the same), and around 9 euro handling fee (10x the tax value, 2x the product value)..

I am not complaining, the system was ridiculous as it was.
I once ordered a single Barby doll dress from China for my granddaughter, costing 0.37 euro. Including shipping.. And it arrived within 4 weeks.
Ridiculous....

PicomiteVGA PETSCII ROBOTS

matherp
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Posted: 09:21am 24 Jun 2021

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a26

PicomiteV5.07.00a36.zip

Preparation for GUI implementation and memory flexibility - please test

Couple of new commands

OPTION RTC AUTO ENABLE/DISABLE

With this option enabled the system will load the time from the RTC on boot up and every hour thereafter. If the option is enabled and the RTC is not connected then a warning message will print each time it attempts to update the time unless a program is running in which case a hard error is generated

OPTION MEMORY No_of_GUI_controls, program_memory_size

The PicoMite memory is now treated as a pool of 160Kbytes which can be flexibly allocated by the user. This command is how it is allocated.

By default there are 0 GUI controls and 80Kbyte of both program and variable memory
Each GUI control will take 52 bytes and the memory required will then be rounded up to a 256 byte boundary
The program memory size can then be up to half the remaining memory out of the 160K. It cannot exceed half as the program would then be unable to be edited or loaded

Volhout
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Posted: 09:36am 24 Jun 2021

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@Peter: I understand you want to give people much flexibility in memory assignment, but it may confuse.

i.e. the 10 flash slots can contain various programs, should each of these programs control it's own memory map.. guess not... would require a cold/warm boot, so chaining may become impractical.

I probably will leave the settings at the defaults always, just to make sure it always works, and for everybody.

PicomiteVGA PETSCII ROBOTS

twofingers
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Posted: 09:44am 24 Jun 2021

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Volhout said For those in Europe: be aware that of juli-1 incoming foreign shipments the tax rules are changed. There was a free allowance of 22 euro (the cheap Chinese packets). The free allowance is ending. And tax is not killing, but the handling fee is.

On a $4 arduino you pay 0.80 euro tax, no income duties (only over 150 euro, that remains the same), and around 9 euro handling fee (10x the tax value, 2x the product value)..

Thanks Volhout!

Thats is an important info, I did not realize that yet.

I think for germany tax below under 1.00 EUR is free.
I.e. value of goods from 0.01 to 5.23 EUR: VAT is due, but is not charged, as it is less than 1 EUR.

Regards
Michael

causality ≠ correlation ≠ coincidence

matherp
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Posted: 10:13am 24 Jun 2021

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You can only use the defaults if you don't want GUI functions. The GUI memory has to come from somewhere

Volhout
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Posted: 10:48am 24 Jun 2021

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Quote Thanks Volhout!

The poison is in the detail: customs see boxes and bags. So if you order from AMAZON 5 items, all 5 could come from different vendors, meaning 5 boxes for customs.

And I am not sure (have no experience yet) if tax is below 1 euro, the invoice for the handling cost is send to you or not....
Edited 2021-06-24 20:49 by Volhout

PicomiteVGA PETSCII ROBOTS

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