Internal modchip - SAMD21 (Trinket M0, Gemma M0, ItsyBitsy M0 Express) Guide, Files & Support

mattytrog · Jun 22, 2018

nachuz said:
and then a SX OS update releases and it fucks the crack

Lol how? If it "fucks the crack" in this, then it will f*** up every device we use to launch the payloader.

Impossible...

EDIT - Oh you mean the cracked SX os itself? My bad. I guess the cat and mouse game will continue

nachuz · Jun 22, 2018

mattytrog said:
Lol how? If it "fucks the crack" in this, then it will f*** up every device we use to launch the payloader.

Impossible...

EDIT - Oh you mean the cracked SX os itself? My bad. I guess the cat and mouse game will continue

Yes, I mean the cracked SX OS itself

skydancer93 · Jun 22, 2018

mattytrog said:
Very quick one...

Evening ladies and gents. Bit hesitant calling it a "release"... It is just an Ardudildo sketch with the loader payload added. I`ve added Dotstar support and different payloads. Still a WIP. Credits to all in that thread who have been involved in the Trinket M0.

If you have a trinket M0, then flash this in bootloader mode and it will give you the SX loader on the device. Or Hekate 2.3 depending on which binary you flash.

If you don`t know what a trinket is, its a cheap SAMD microcontroller with USB host mode.

Double press RESET button to get into bootloader mode and drag and drop contents of the archive you choose from below. You will find 3 files inside.

So, in your TRINKETBOOT drive, you should have CURRENT.UF2, INDEX and INFO_UF2.TXT. Not in folders, just dumped to the root of the TRINKETBOOT drive.

More info in https://gbatemp.net/threads/build-your-own-dongle-research-and-development-thread.504633/

EDIT: - Added Hekate payload to sketch binary
EDIT EDIT: - Uploaded UF2 files so no need to install Ardudildo. Just drag and drop onto the drive. Yes I should have thought about this before. But it was 1am. And I was drunk.

So before I grab this, all I need to do is get the Trinket M0 board and then just plug it in to my PC and copy the sketch and SX Loader files over? I don’t need anything else to program it?

Then I just use a USB A to USB C wire from the board to the Switch?

mattytrog · Jun 22, 2018

skydancer93 said:
So before I grab this, all I need to do is get the Trinket M0 board and then just plug it in to my PC and copy the sketch and SX Loader files over? I don’t need anything else to program it?

Then I just use a USB A to USB C wire from the board to the Switch?

No. Forget the sketch file. That's if you want to make your own. Just drag and drop the three files that are inside your chosen archive as I said in OP. That is all

So for example, you have a fresh virgin trinket... Download sxloader_trinketm0, look inside the download and there will be three files. Extract and drag and drop. Done

skydancer93 · Jun 22, 2018

mattytrog said:
No. Forget the sketch file. That's if you want to make your own. Just drag and drop the three files that are inside your chosen archive as I said in OP. That is all

And connect to the Switch via USB cable?

mattytrog · Jun 23, 2018

skydancer93 said:
And connect to the Switch via USB cable?

Yes. And a battery. Anything should power it

skydancer93 · Jun 23, 2018

mattytrog said:
Yes. And a battery. Anything should power it

Battery? I’m new to this, so I’m trying to figure this out before I plunk down for the board, so what else do I need for it?

josukal · Jun 23, 2018

What kind of battery do you need for it and where do you attach it?

mattytrog · Jun 23, 2018

josukal said:
What kind of battery do you need for it and where do you attach it?

To the gnd and batt pins. Use a pound shop power bank. Or even connect two wires to an ecig battery. Anything from 3v to about 6v? Don't quote me on that. But the ldo regulator is rather good. You can even lift one of the legs on the regulator and feed the lifted leg with 1.8v from a point on the board and use that as a kind of relay. So you have your 5v trinket, lift the leg and you can switch it on and off with 1.8v

GizmoTheGreen · Jun 23, 2018

Ardudildo lmao

Joxley192 · Jun 23, 2018

can u wire a usb c cable/port straight up to the trinket m0 if so how ?

mattytrog · Jun 23, 2018

Joxley192 said:
can u wire a usb c cable/port straight up to the trinket m0 if so how ?

You can. Tricky though. You need to solder to the qfn package directly. Or use a usb shim, then an adapter.

Or use a breakout board.

Easiest is to buy a usb shim from the pi hut or "made in china"bay and put this into the big end of your usb c cable. Then you have a micro-usb to usb c cable

Right, time for some dark side of YouTube before bed (darn you Dr Sandra Lee). Will play tomorrow.

Night all

xeswitched · Jun 23, 2018

matty,

m0 will be delivered today, aside from the power ground d- and d+ are there any other wires that need to be soldered to the board to make this functional? You had said there is a switched 3.3v on the otherside of the board however I can not find pictures anywhere about the point.

Thank you,

mattytrog · Jun 23, 2018

xeswitched said:
matty,

m0 will be delivered today, aside from the power ground d- and d+ are there any other wires that need to be soldered to the board to make this functional? You had said there is a switched 3.3v on the otherside of the board however I can not find pictures anywhere about the point.

Thank you,

There is a 3.3v point. But I wouldn`t use it.

xeswitched · Jun 23, 2018

So then just the normal 4 points for now perhaps with a toggle switch on positive...

DarkMelman · Jun 24, 2018

Hello Everyone,

can anyone be so kind and upload the payload.h for sx os?

Or describe, how to convert the payload.bin file to the payload.h?

Thanks a lot!

DarkMelman · Jun 24, 2018

DarkMelman said:
Hello Everyone,

can anyone be so kind and upload the payload.h for sx os?

Or describe, how to convert the payload.bin file to the payload.h?

Thanks a lot!

UPDATE:

Found the solution on a Mac:

Terminal -->
xxd -i payload.bin > payload.h

Then copy all between the {} and note the size at the end of the file

for example

unsigned int payload_bin_len = 27748;

Then

create the following file, change the size and paste the content between the {}

#include <Arduino.h>

#define FUSEE_BIN_SIZE 27748
const PROGMEM byte fuseeBin[FUSEE_BIN_SIZE] = {

};

Done!

mattytrog · Jun 24, 2018

DarkMelman said:
UPDATE:

Found the solution on a Mac:

Terminal -->
xxd -i payload.bin > payload.h

Then copy all between the {} and note the size at the end of the file

for example

unsigned int payload_bin_len = 27748;

Then

create the following file, change the size and paste the content between the {}

#include <Arduino.h>

#define FUSEE_BIN_SIZE 27748
const PROGMEM byte fuseeBin[FUSEE_BIN_SIZE] = {

};

Done!

But... this is what the download files are in the OP. Why would you do it again?

:confused I am

Edit::: Sorry! Didn`t see you are running a Mac. Yep spot on.

xeswitched · Jun 26, 2018

I completed this along with RCM Strap.

--------------------- MERGED ---------------------------

mattytrog · Jun 26, 2018

xeswitched said:
I completed this along with RCM Strap.

--------------------- MERGED ---------------------------

Good man.

Stays powered though.

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