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Nano esp32: adding variant#314

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andreagilardoni wants to merge 31 commits intoarduino:mainfrom
andreagilardoni:nano-esp32-v4.3.0+
Draft

Nano esp32: adding variant#314
andreagilardoni wants to merge 31 commits intoarduino:mainfrom
andreagilardoni:nano-esp32-v4.3.0+

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@andreagilardoni
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This PR aims to introduce nano esp32 variant into ArduinoCore-zephyr this depends on: arduino/zephyr#9 and arduino/zephyr#10

facchinm and others added 30 commits January 13, 2026 10:14
Otherwise USB_NEXT complains with

<wrn> usbd_class: Class instance already registered

and callbacks don't get registered (the only real effect is that 1200bps touch doesn't work)
PortentaC33 and PortentaH7 still have bugs
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
due to limitations on xtensa assembly, load istruction require the
address to be located in a literal section with an address lower than
the code section, this requires further thinkering in the linker script.
look into -mtext-section-literals xtensa gcc option
this requires further thinkering before being merged
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CLAassistant commented Mar 18, 2026

CLA assistant check
Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
2 out of 3 committers have signed the CLA.

✅ facchinm
✅ iabdalkader
❌ andreagilardoni
You have signed the CLA already but the status is still pending? Let us recheck it.

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4 participants