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added support for rak7391 with rak13300x radios#226

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Kodo-kakaku wants to merge 1 commit intopyMC-dev:mainfrom
Kodo-kakaku:rak7391-13300x
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added support for rak7391 with rak13300x radios#226
Kodo-kakaku wants to merge 1 commit intopyMC-dev:mainfrom
Kodo-kakaku:rak7391-13300x

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Changes

  • radio-settings.json: new entries rak13300-slot-1 and rak13300-slot-2.

Hardware mapping

Slot SPI device bus_id / cs_id Control lines (IO expander line offsets)
1 /dev/spidev0.0 0 / 0 Reset=4, Busy=5, IRQ=6
2 /dev/spidev0.1 0 / 1 Reset=12, Busy=13, IRQ=14
  • cs_pin: -1 (hardware chip select)
  • use_gpiod_backend: true (GPIO via character device; IRQ path uses polling where applicable)
  • gpio_chip: Linux gpiochip index for the expander — must match /dev/gpiochipN (confirm with gpioinfo / docs)
  • use_dio3_tcxo / dio3_tcxo_voltage: typical RAK13300 SX1262 + TCXO usage

Notes

Slot 2 uses a different SPI chip select and different reset/busy/IRQ lines than slot 1. Drafts that reused slot 1 pins for slot 2 are incorrect for this hardware.

Testing

  • RAK7391 + RAK13300 in slot 1
  • RAK7391 + RAK13300 in slot 2

Links:
RAK13300
RAK7391

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