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

Apache #NuttX RTOS Online Workshop happens this weekend! Please join me Sep 24-25

Free Registration: https://nuttx.events/

Configuring #PinePhone's LEDs for GPIO Output ... By writing to the Allwinner A64 Port Controller

https://lupyuen.github.io/articles/pio?5#configure-gpio

Controlling #PinePhone's GPIOs ... With the Allwinner A64 Port Controller

https://lupyuen.github.io/articles/pio?4#port-controller-registers

#PinePhone supports 103 GPIOs! This is how we control them with the Allwinner A64 SoC

https://lupyuen.github.io/articles/pio?3#allwinner-a64-port-controller

#PinePhone's LEDs are connected on GPIOs PD18, 19 and 20 ... Let's flip them on with #NuttX RTOS

https://lupyuen.github.io/articles/pio?2#pinephone-schematic

Experimenting with #PinePhone LEDs on Apache #NuttX RTOS ... All shall be explained in this article

https://lupyuen.github.io/articles/pio?1

BASIC blinks the #PinePhone LEDs ... With Apache #NuttX RTOS

https://github.com/lupyuen/pinephone-nuttx#basic-blinks-the-leds

One more week to Apache #NuttX RTOS Online Workshop! Please join me next weekend, 24-25 Sep

Free Registration: https://nuttx.events/

I'm super honoured to join Apache #NuttX PPMC! Let's make NuttX more educational and teachable! 😀

https://www.linkedin.com/feed/update/urn:li:activity:6975934342845853696

Hello #NuttX on PineDio Stack #BL604

https://lupyuen.github.io/articles/pinedio2

#PinePhone boots the #NuttX Shell ... Thanks to our UART Driver!

https://lupyuen.github.io/articles/serial?17#uart-in-action

Here's how we create a #PinePhone UART Driver for #NuttX RTOS

https://lupyuen.github.io/articles/serial?16#nuttx-uart-driver

Why we don't init #PinePhone's UART Driver

https://lupyuen.github.io/articles/serial?15#initialise-uart

Handling Transmit and Receive Events in #PinePhone's UART Interrupt Handler

https://lupyuen.github.io/articles/serial?12#uart-transmit

#PinePhone's UART Interrupt Handler will handle Transmit and Receive Events

https://lupyuen.github.io/articles/serial?11#handle-interrupt

How we enable UART Interrupts on #PinePhone

https://lupyuen.github.io/articles/serial?10#enable-interrupt

Here's how we attach our Interrupt Handler to #PinePhone's UART Port

https://lupyuen.github.io/articles/serial?9#attach-interrupt-handler

We've done #PinePhone UART with Polling ... Now we do UART with Interrupts!

https://lupyuen.github.io/articles/serial?8#uart-with-interrupts

Arm64 Assembly Macros for printing to #PinePhone's Serial Console ... Super helpful for our Arm64 Startup Code!

https://lupyuen.github.io/articles/serial?7#arm64-assembly

How we wait for UART Input on #PinePhone

https://lupyuen.github.io/articles/serial?6#wait-to-receive