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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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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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3 participants