Untangling the un-untanglable¶

Summary¶

We have a lot of chips this year!

Includes in the Arduino IDE

Copy paste this into Arduino > Preferences... > Additional Boards Manager URLs:

https://raw.githubusercontent.com/damellis/attiny/ide-1.6.x-boards-manager/package_damellis_attiny_index.json
http://arduino.esp8266.com/stable/package_esp8266com_index.json
https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
https://adafruit.github.io/arduino-board-index/package_adafruit_index.json
http://drazzy.com/package_drazzy.com_index.json
https://www.mattairtech.com/software/arduino/beta/package_MattairTech_index.json
https://dl.espressif.com/dl/package_esp32_index.json
https://mcudude.github.io/MiniCore/package_MCUdude_MiniCore_index.json
https://dl.espressif.com/dl/package_esp32_index.json

AVR¶

AVR is a family of microcontrollers developed since 1996 by Atmel, acquired by Microchip Technology in 2016. These are modified Harvard architecture 8-bit RISC single-chip microcontrollers.

ATtinyXX¶

The ISP connector reference:

Another way the ISP can look:

By Michael Hzl - Own work, CC BY-SA 3.0, Link

Learn even more!

AVR Series-1¶

The whole series:

Image from here

How UPDI Works:

From this source.

Note

To set it up, all you need to do is connect the RX pin of the adapter to the UPDI pin on the micro and the TX pin to that through a 4.7k resistor. Then just use the program on your computer.

Hardware options¶

Remember

You have to make your own. This is just reference!

Official Fabacademy Hardware: two boards that could be merged into one (USB to FTDI to serial):
- USB to FTDI
- FTDI to UPDI
Expensive Hardware: Atmel-ICE
Unofficial hardware: USB to serial adapter
Raspberry Pi: OpenOCD on raspberry Pi
Using Arduino IDE, with UNO as programmer or an Atmel ICE: megaTinyCore + Jtag2updi

No programmer? No problem

Check here if you want to use an Arduino Nano/Uno And also here More info in this video

Your Software options for programming the boards¶

pyupdi

Set up python environment
Clone pyupdi and install requirements:

git clone https://github.com/mraardvark/pyupdi

pip install -r requirements.txt

Find out your port:

ls /dev/* | grep usb
/dev/cu.usbserial-DN05BTJ5
/dev/tty.usbserial-DN05BTJ5

Choose your device from the list:

python pyupdi.py -h
--device {mega3208,mega3209,mega4808,mega4809,tiny1604,
tiny1606,tiny1607,tiny1614,tiny1616,tiny1617,
tiny202,tiny204,tiny212,tiny214,tiny3216,tiny3217,
tiny402,tiny404,tiny406,tiny412,tiny414,tiny416,
tiny417,tiny804,tiny806,tiny807,tiny814,tiny816,tiny817}

Compile:

/var/folders/jh/yqwgppd975x6_958tswyv1cm0000gn/T/arduino_build_384105/hello.ino.hex

Send it:

python3 pyupdi.py -d tiny1614 -c /dev/cu.usbserial-DN05BTJ5 -b 115200 -f '/var/folders/jh/yqwgppd975x6_958tswyv1cm0000gn/T/arduino_build_384105/hello.ino.hex' -v

Important tips

If it doesn’t work, use 9600 bauds
Plug unplug the FTDI if you see echo problems
Check this gotcha list: https://github.com/SpenceKonde/ATTinyCore#quick-gotcha-list

Pinouts for each board

Find them here (click on each board)

More guides

ARM¶

Hardware options¶

Remember

You have to make your own. This is just reference!

Official Fabacademy Hardware:
- CMSIS-DAP 10pin + adaptor to 4pin SWD (optional, to program using arm’s SWD - with 4 pins instead of 10)
Expensive Hardware: Atmel-ICE
Raspberry Pi: OpenOCD on raspberry Pi

Software options¶

EDBG

git clone git@github.com:ataradov/edbg.git
cd edbg
make all
# Check if it works
./edbg -h
cp edbg /usr/local/bin
# Check if it works
edbg -h

Programming the programmer

You need to first flash the programmer using an Atmel ICE or another ATSAM programmer and send this binary

edbg -b -t samd11 -pv -f free_dap_d11c_mini.bin

Once you have it programmed, you can use:

*Arduino IDE with SAMD Core: