wagiminator / samd-development-boards Goto Github PK

I'm positively surprised to see that someone takes care of the Mattairtech cores which are orphaned since 2018! Do you plan further evolutions and improvements on these, like for example integrating tinyUSB as an alternative USB stack? This could help to reduce flash rom space problems on the D11C...
Another huge plus would be re-packaging these cores, so that these can be integrated in PlatformIO which has actually no SAMD11 support and not everybody is a huge fan of the Arduino IDE. Unfortunately, my modest knowledge is not sufficient to fully understand what is written here: https://docs.platformio.org/en/latest/platforms/creating_platform.html
Thank you in advance for your friendly consideration!

HI, @wagiminator

How can i change the bootloader led pin from 6 to 28
on pin PA02 i need to enable Interrupt also
please support

Hi Stefan,

I was looking around on most maker platforms because I wanted to buy your SAMD-Programmer-Adapter boards, already built and ready to use. But I could not find them. Do you have an indication?

I have a paired down sketch that only inits a GPIO and set it high.

I have this flashed on a SAMD21E17A with crystal with no boot loader.

It seems to take about 2.3 seconds for the SAMD21E17A to start up and set the IO.

Is there anyway to speed this up to < 1 second?

Hi Bro,
Do you have the bootloader for ATSAMD21E17D ic ?
can you please inform how to change ATSAMD21E17A bootloader to ATSAMD21E17D

At the moment I am designing a custom board with the ATSAMD21E18A. I want to program the controller directly via SWD without using a bootloader and USB. This could save me a USB connector on my board. For initial tests the controller sits on a breadboard. My programmer is the Atmel ICE. Connection via openocd is fine.

In the Arduino IDE I selected
SAMD DevBoards,
Board "SAMD21E DevBoard",
Microcontroller "SAMD21E18A",
Clock Source "Internal Oscillator",
USB Config "USB disabled",
Serial Config "1xUART, 1xWIRE, 1xSPI",
Bootloader "No Bootloader",
Timer PWM Frequency "732.4Hz (16Bit)",
Floating Point "Print & String use auto-promoted doubles only"
Build Options "config.h disabled"

I was able to upload the blink example. It worked but I got some error messages that I unfortunately didn't copy. The blink example is running but the chip is bricked. No SWD connection is possible.

My questions are: Did you ever test uploading a sketch from the IDE without bootloader? Do you see any errors in what I did? Do you have any recommendations?

Thanks in advance

heliosoph