Lup Yuen Lee 李立源 @lupyuen@social.cleverlibre.org

Here's why we need GPIO Interrupts Triggered on Rising Edge for #LoRa on #NuttX

https://lupyuen.github.io/articles/sx1262?88#initialise-gpio

SX1262 will trigger a GPIO Interrupt on #NuttX OS when it receives a #LoRa Packet ... We wait for the GPIO Interrupt to be Signalled in a Background Thread

https://github.com/lupyuen/lora-sx1262/blob/lorawan/src/sx126x-nuttx.c#L742-L778

NimBLE Porting Layer is a portable library of Multithreading Functions ... We've used it for #LoRa on Linux and FreeRTOS ... Now we call it from Apache #NuttX OS

https://github.com/lupyuen/nimble-porting-nuttx

Here's how we ported the #LoRa SX1262 Driver from Linux to Apache #NuttX OS ... And tested it on #PineDio Stack BL604 #RISCV Board

https://lupyuen.github.io/articles/sx1262

Semtech's Reference Driver for #LoRa SX1262 ... Everything inside is explained here

https://lupyuen.github.io/articles/sx1262?27#appendix-radio-functions

Multithreading will be needed for our #NuttX #LoRa and LoRaWAN Drivers ... Which we'll implement with NimBLE Porting Layer

https://lupyuen.github.io/articles/sx1262?26#multithreading-with-nimble-porting-layer

Here's the SPI Data transferred by #NuttX to #LoRa SX1262

https://lupyuen.github.io/articles/sx1262?24#spi-in-action

Our #NuttX SX1262 Library works OK for receiving #LoRa Messages! 🎉

https://lupyuen.github.io/articles/sx1262?20#run-the-firmware-2

Calling our #NuttX SX1262 Library to receive a #LoRa Message

https://lupyuen.github.io/articles/sx1262?19#receive-lora-message

Troubleshooting our #NuttX #LoRa Library with a Software Defined Radio

https://lupyuen.github.io/articles/sx1262?18#spectrum-analysis-with-sdr

Our #NuttX SX1262 Library transmits #LoRa Messages correctly! 🎉

https://lupyuen.github.io/articles/sx1262?17#run-the-firmware-1

Here's how we send a #LoRa Message on #NuttX OS

https://lupyuen.github.io/articles/sx1262?16#transmit-lora-message

Setting the #LoRa Parameters for #NuttX OS

https://lupyuen.github.io/articles/sx1262?15#lora-parameters

Our #NuttX #LoRa Library has layers ... Like Shrek 😂

https://lupyuen.github.io/articles/sx1262?12#source-files

Yep our #NuttX #LoRa Library reads the SX1262 Registers OK! 🎉

https://lupyuen.github.io/articles/sx1262?11#run-the-firmware

Building our #NuttX Firmware for #LoRa SX1262

https://lupyuen.github.io/articles/sx1262?10#build-the-firmware

How we call our #NuttX #LoRa Library ... To read the SX1262 Registers

https://lupyuen.github.io/articles/sx1262?9#read-sx1262-registers

What are DIO1, BUSY and NRESET Pins on #LoRa SX1262 ... Nope we're not using them on #NuttX OS yet

https://lupyuen.github.io/articles/sx1262?8#connect-sx1262-transceiver

How #LoRa SX1262 is wired up on #PineDio Stack BL604 ... And how we configure the pins on Apache #NuttX OS

https://lupyuen.github.io/articles/sx1262?8#connect-sx1262-transceiver

We port the #LoRa SX1262 Driver to #NuttX OS ... In small steps

https://lupyuen.github.io/articles/sx1262?2#small-steps