Lup Yuen Lee 李立源

Running Apache RTOS on Stack @PINE64 ... All shall be explained in this article

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Fun Experiments with Apache RTOS ... On Stack

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Here's how we build Apache RTOS for Stack

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Unwrapping Stack @PINE64

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

How we flash Apache RTOS to Stack

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Apache RTOS boots with a Pink Screen on Stack

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Rendering our own text and graphics with on Stack

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Apps bundled with Stack ... Includes BASIC Interpreter!

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源
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Stack connects ST7789 Display, LoRa SX1262 and SPI Flash to a Shared SPI Bus ... Here's how we modded RTOS to support this

lupyuen.github.io/articles/pin

· · Tusky · 1 · 0 · 0
Lup Yuen Lee 李立源

Swapping SPI MISO and MOSI on the fly ... Because ST7789 is wired "backwards" on Stack

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Pin Definitions for Stack on Apache RTOS

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

handles the Shared SPI Bus on Stack ... By looking up the SPI Device Table

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

How we flip MISO or MOSI as the ST7789 Data / Command Pin ... For on Stack

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Shared SPI Bus works OK on Stack ... While swaps MISO and MOSI on the fly! 🎉

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

talks to ST7789 Display in SPI Mode 1 or Mode 3 ... Here's why

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Fixing a Race Condition with SPI Chip Select ... For on Stack

lupyuen.github.io/articles/pin

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Lup Yuen Lee 李立源

and LoRaWAN work great on Stack !

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Here's how we test on Stack

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Testing on Stack with Apache RTOS

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Stack supports CBOR Encoding for LoRa messages

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

All 23 GPIOs used by Stack ... Interesting muxing! 🤔

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Features bundled for Stack

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Handling 23 GPIOs on with Apache RTOS ... GPIO Expander can help!

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Push Button on Stack will appear as "/dev/buttons"

lupyuen.github.io/articles/pin

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Lup Yuen Lee 李立源

Porting Stack 's Touch Panel Driver to Apache RTOS

lupyuen.github.io/articles/pin

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Lup Yuen Lee 李立源

2 types of SPI Flash on Stack ... Wonder why 🤔

lupyuen.github.io/articles/pin

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Lup Yuen Lee 李立源

We need SPI DMA on for better multitasking

lupyuen.github.io/articles/pin

1
Lup Yuen Lee 李立源

Automated Testing on Stack

lupyuen.github.io/articles/pin

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