(Manual) Installation of ATTinyCore v2.0.0 on Arduino IDE v2.3.6

[GiorgosXou]

Edit: My first, non so successful attempt

(Partial) Solution

This didn't really help 😅 so... here's how I managed to install it manually step by step on Arduino IDE 2.3.6. (the only caveat is that I can't burn a bootloader)

1. Install the apropriate libraries

sudo pacman -S libusb libusb-compat # you may need build-essential on other platforms too

2. Built micronucleus (without static linking)

git clone https://github.com/micronucleus/micronucleus.git
cd ./micronucleus/commandline
sed -i 's/STATIC *= *-static/STATIC =/g' ./Makefile
make

3. Move micronucleus to the apropriate folder

mkdir -p ~/.arduino15/packages/micronucleus/tools/micronucleus/2.5
cp ./micronucleus ~/.arduino15/packages/micronucleus/tools/micronucleus/2.5/
chmod +x ~/.arduino15/packages/micronucleus/tools/micronucleus/2.5/micronucleus

4. Create a package.json

nano ~/.arduino15/packages/micronucleus/package_micronucleus_index.json

{
  "packages": [
    {
      "name": "micronucleus",
      "tools": [
        {
          "name": "micronucleus",
          "version": "2.5",
          "systems": [
            {
              "archiveFileName": "micronucleus",
              "url": "",
              "checksum": ""
            }
          ]
        }
      ]
    }
  ]
}

5. Download the core into the hardware folder

mkdir ~/Arduino/hardware/
cd ~/Arduino/hardware/
git clone https://github.com/SpenceKonde/ATTinyCore

6. Remove prefix from boards.txt & restart the IDE

cd ./ATTinyCore/avr/
sed -i 's|{runtime.platform.path}/bootloaders||g' ./boards.txt

(interestignly if you don't remove this prefix it repeats the path & it can't find the Bootloader file)

Bootloader file specified but missing: /home/xou/Arduino/hardware/ATTinyCore/avr/bootloaders/home/xou/Arduino/hardware/ATTinyCore/avr/bootloaders/micronucleus/upgrade-attiny85_extrf_porf.hex

[!TIP]
You may skip steps 1 and 2 by simply downloading the micronucleus executable directly into step 3

Why?

Why am I sharing it? to help others + because I think this will help with tests since you

... desperately need people to do manual installs and help test it

Outro

Idk if there's any easier way to install the 2.0.0 version of the core, but yeah... that's how it worked for me. Tested it on my latest project https://github.com/GiorgosXou/ATTiny85-MNIST-RNN-EEPROM and it works just fine

peace out ✌️

[GiorgosXou]

Ah... for some reason I can't burn any bootloader

{status:"waiting",step:1,steps:6,progress:0.500000}
> Please plug in the device (will time out in 60 seconds) ... 
> Device is found!
{status:"connecting",step:2,steps:6,progress:0.000000}
{status:"connecting",step:2,steps:6,progress:0.180000}
{status:"connecting",step:2,steps:6,progress:0.360000}
{status:"connecting",step:2,steps:6,progress:0.540000}
{status:"connecting",step:2,steps:6,progress:0.720000}
{status:"connecting",step:2,steps:6,progress:1.000000}
> Device has firmware version 2.5
> Device signature: 0x1e930b 
> Available space for user applications: 6650 bytes
> Suggested sleep time between sending pages: 7ms
> Whole page count: 104  page size: 64
> Erase function sleep duration: 728ms
{status:"parsing",step:3,steps:6,progress:0.000000}
> Error opening {build.path}/{build.project_name}.hex: No such file or directory
> Error loading or parsing hex file.
Failed to burn bootloader: uploading error: exit status 1

I'm having the save issue I solved at step 6. , when I first tried to upload a sketch :

> Error opening {build.path}/{build.project_name}.hex: No such file or directory

but this time idk how to fix it...

[GiorgosXou]

the closest I managed to make ATTinyCore v2.0.0 to work on IDE v2 was:

https://gist.githubusercontent.com/GiorgosXou/8f168cc6a3419267d19d6a8285137fb9/raw/0d7d1a40c697c669e5d4134eb5bfb3d3dfcb1c82/package_attinycore_test.json

but still can't figure out how to fix the issue with the burn of bootloader, even this:

GiorgosXou@758559b

is not working properly as far as I tested

[GiorgosXou]

there are a few weird things:

1. why a Blink.ino.with_bootloader.hex is generated and why when i try to burn this as a bootloader the digispark blinks warningly (whatever the sketch is)

2. why it still blinks warningly when instead of v.2.0.0:

ATTinyCore/avr/platform.txt

Line 191 in 9e70249

tools.micronucleus.bootloader.pattern="{cmd.path}" --run --dump-progress --timeout 60 {build.path}/{build.project_name}.hex

I use the:

ATTinyCore/avr/platform.txt

Line 145 in c0a1f40

tools.micronucleus.bootloader.pattern="{cmd.path}" --no-ansi --run --timeout 60 {runtime.platform.path}/bootloaders/{bootloader.file}

from v1.5.2 into the v.2.0.0 (which works just fine with the v1.5.2 core)... and last but not least

3. WHY THIS

[GiorgosXou]

I have 3 days now trying to make it burn the bootloader... (for future visitor [again] here's the closest solution)

[GiorgosXou]

Actually the ....with_bootloader.hex seems to be a normal thing, but still doesn't help