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Geoffg

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Joined: 06/06/2011
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Posted: 12:53pm 10 Jul 2015

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kiiid said Something for fixing in the documentation: in the 64-pin devices pin 15 is clock, and pin 16 is data for firmware programming (PGEC1 and PGED1 respectively)

Thanks Kon.

TZAdvantage said Does that also mean that Microchips Harmony library is tackled? :)

No, I was able to keep using PLIB with the MX470.

Geoff

Geoff Graham - http://geoffg.net

f1fco

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Joined: 18/03/2012
Location: France
Posts: 155

Posted: 09:26pm 10 Jul 2015

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hi Geoff,
as said Kiiid, on the table in bottom of page 8, for the 64 pins chip, PGD is pin 16 and PGC is pin 15

and also for the 100 pins chip :
PGD is pin 25 (not 24)
PGC is pin 24 (not 25)
Vcc is pins 2, 16, 30, 37 (not 36), 46 (not 45), 55, 62 and 86

thank you again and again for this wonderfull work

Pierre

73s de F1FCO

Bryan1

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Joined: 22/02/2006
Location: Australia
Posts: 1483

Posted: 09:53pm 10 Jul 2015

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G'day Guy's,
Well after I saw the video Geoff put up and I had some 470's here I decided to have a go at making up one using a 64 pin breakout board. Now when I when I fired up IPE it did see the pic ok and programmed the first time. Now all I did was went of the schematic which is correct.

Thought YEA lets fire up teraterm using the usb BB board I made years ago then thought noway need 3V3 volts. So back off to the shed and I'm on making a 3V3 reg board to fit inside the pins. I will get that finished in the morning then first task is teraterm.

Cheers Bryan

Grogster

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

Posted: 10:25pm 10 Jul 2015

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f1fco said I need a PCB for a 100 pins PIC : is it already available ?

Not at the moment, but Geoff plans to have one - just not quite yet.

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

f1fco

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Joined: 18/03/2012
Location: France
Posts: 155

Posted: 06:57am 11 Jul 2015

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is it this display SSD1963 7" OK to use with this new Maximite ?

http://www.ebay.com/itm/7-7inch-TFT-LCD-Module-Touch-Display-SSD1963-Controller-Arduino-AVR-STM32-ARM/291020327228?_trks id=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D32222%26meid%3D32801f65098c4d39b75cf6 8925c4d28a%26pid%3D100005%26rk%3D1%26rkt%3D6%26mehot%3Dpp%26sd%3D271851113607&rt=nc

Pierre

73s de F1FCO

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

Posted: 07:07am 11 Jul 2015

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Quote is it this display SSD1963 7" OK to use with this new Maximite ?

Almost certainly not, it appears to have capacitive touch which won't work

Try this one or any like it. Or go 5" for the same resolution but less money and lower power requirement

f1fco

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Joined: 18/03/2012
Location: France
Posts: 155

Posted: 07:46am 11 Jul 2015

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ok Matherp,
thank you for the link
I order one

Pierre

73s de F1FCO

boss

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Joined: 19/08/2011
Location: Canada
Posts: 268

Posted: 07:57am 11 Jul 2015

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Hi everyone,

I found this PIC32MX470L (100pin) board on eBay.
It maybe good starting platform when the 100pin FW will be available

http://www.ebay.com/itm/Microchip-PIC32-PIC24-dsPIC33-USB-OTG-Development-Board-Starter-kit-SD-Card-/181197009902?pt=LH_ DefaultDomain_0&var=&hash=item2a302ef3ee

BobD

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Joined: 07/12/2011
Location: Australia
Posts: 935

Posted: 08:21am 11 Jul 2015

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Bo
Although they are very careful not to say, that board looks like it is a PC32MX795F512L. That was used in the Maximite several years back.
Bob

G8JCF

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Joined: 15/05/2014
Location: United Kingdom
Posts: 676

Posted: 09:55am 11 Jul 2015

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Hi Bo, BobD

I have one of the SNADPic PIC32MX470F512L modules here, but it's unfortunately not usable with the MM+ s/w because the SNADPic board uses a 8MHz xtal, and the MM+ s/w requires a 20MHz xtal.

Before someone asks why 20MHz vs 8MHz, I asked Geoff and he explained

Geoff Graham said 20MHz was necessary to get a clock of 120MHz.
The PIC32 firstly divides the crystal to get the frequency between 4 and 5MHz. For an 8MHz crystal this would require dividing by 2 for 4MHz, where with a 20MHz crystal dividing by 4 gives 5MHz. Then the PLL multiplies this frequency. The highest multiplier is 24 so with an 8MHz crystal we end up with a clock of 96MHz but with a 20MHz crystal we end up with 120MHz.

Otherwise the SNADPic module is a very nice unit, well made, and very reasonably priced, USD 30.99 / GBP 19.98 here in UK, and it ships from inside the EU so no additional taxes/duties for EU countries.

Peter

The only Konstant is Change

centrex

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Joined: 13/11/2011
Location: Australia
Posts: 320

Posted: 12:13pm 11 Jul 2015

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Hi all
As I only have a 28 pin micromite what software revision should I be using as I cannot use all the features of the 64 pin device.
Thanks
Cliff

Cliff

Geoffg

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

Posted: 12:44pm 11 Jul 2015

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centrex said As I only have a 28 pin micromite what software revision should I be using as I cannot use all the features of the 64 pin device.

For the moment you are better sticking to V4.6 which is on my web site or V4.7 beta 8 which can be download using this link: http://geoffg.net/Downloads/Micromite/Micromite_4.7_Beta8.zip Note that B8 has a bug in the DISTANCE command.

My intention was to release a new beta for the 28 and 44 pin Micromites before I went away but I am running out of time so it might be delayed for a month or two.

Geoff

Geoff Graham - http://geoffg.net

boss

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Joined: 19/08/2011
Location: Canada
Posts: 268

Posted: 12:51pm 11 Jul 2015

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@BobD

They have 4 CPU to choose from including 32MX470L. Check on eBay. The board is the same, just the chip is different.

Bo

boss

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Joined: 19/08/2011
Location: Canada
Posts: 268

Posted: 01:01pm 11 Jul 2015

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@Peter

The seller is a Czech fellow and I believe you can kindly ask him to remove RTC 32kHz crystal and related capacitors and replace 8MHz crystal with 20MHz as well. The board price is around ~30 bucks and the shipping ~ $3.

Regards
Bo

G8JCF

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Joined: 15/05/2014
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Posted: 01:47pm 11 Jul 2015

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Hi Bo

I thought of that, and indeed he is a most obliging fellow, so maybe I will consider returning the board to him with a request to replace the 8MHz with 20MHz XTAL.

Anyway, how's life ?

Peter

The only Konstant is Change

BobD

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Joined: 07/12/2011
Location: Australia
Posts: 935

Posted: 04:50pm 11 Jul 2015

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boss said @BobD

They have 4 CPU to choose from including 32MX470L. Check on eBay. The board is the same, just the chip is different.

Bo

Bo
Thanks, I missed that. Too early in the morning. I should have gone to sleep instead of replying to your post at 4:00am.
It does look like a useful board.
Bob

boss

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Joined: 19/08/2011
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Posts: 268

Posted: 07:57pm 11 Jul 2015

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Hi everyone and greeting from Vancouver ,

I had some chat with the seller because there is necessary to do some changes on the board:

1) Replace 8MHz crystal with 20Mhz Xtal
2) Remove 32kHz crystal and associated capacitors

The seller agreed do this mod for not extra charge, there is his post:
The seller is located in the Czech republic, so I wrote the mod request in Czech. But seller prefers communication in English

Dear kovois,

Hi
Let's speak English:)
Yes, it is possible.
You want a SnadPIC board MX470 which has 20Mhz crystal, and remove the 32khz and its capacitors, so RC13 and RC14 will be available,
But the board will be RED .(not green)
OK,you can buy the green 470 device and we will make the changes you want.
Just leave a note (message) : just write : NEED CHANGES to let us remember.
best regards

Bo

Geoffg

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

Posted: 08:16pm 11 Jul 2015

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I have fixed the problems with pin allocations for SPI and COM1 in the MM+. The new version (beta 21) is available for download from: http://geoffg.net/Downloads/Micromite/Micromite+_4.7_Beta21.zip .

The updated pin numbering is on page 11 of the "Micromite Manual" (included in the download).

The other change is that you can now dynamically load up to ten additional fonts from the SD card. The following is a direct quote from page 17 of the the updated "Micromite Advanced Manual" (included in the download):

The command is: LOAD FONT filename$ AS #nbr

Once a font is loaded by a program it can then be used in a similar manner to the built in fonts (ie, selected using the FONT command or specified in the TEXT command). Note that the fonts are loaded into RAM and are cleared before a new program is run.

Loadable fonts must be in the UTFT format which is normally used to specify the font in a C program and is therefore written in that language. However MMBasic knows how to read these files and will extract the required font information from them.

The best source of fonts is Henning Karlsen's website at http://www.rinkydinkelectronics.com/r_fonts.php or you can use Google to search for UTFT Fonts. There are many free font files available covering a wide range of character sets as well as symbol fonts (Dingbats, etc) which are handy for creating on screen icons, etc. It is also possible to create your own font which can contain any symbols of any size as required.

As part of this change the built-in font #6 has been removed. There are now six built-in fonts.

Geoff
Edited by Geoffg 2015-07-13

Geoff Graham - http://geoffg.net

viscomjim
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Joined: 08/01/2014
Location: United States
Posts: 925

Posted: 10:15pm 11 Jul 2015

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THIS IS A W E S O M E ! ! !

Geoffg

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

Posted: 12:40am 12 Jul 2015

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Thanks Jim (viscomjim).

Thanks Boss for the post on the SNADPic PIC32MX470F512L module. I have just ordered one of them with the mods negotiated by you. It looks like a great board and I will be using it to develop and test the 100-pin version of the MM+. Much easier than my current test setup (in the top part of the photo below).

GeoffEdited by Geoffg 2015-07-13

Geoff Graham - http://geoffg.net

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