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avr: updated documentation.

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Martin Preuss
2026-04-14 23:55:06 +02:00
parent 4411162620
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avr/README
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AqHome Node Operating System AqHome Node Operating System (AqOS4Avr)
============================ =======================================
This is a very simple operating system for AVR nodes using ATtiny and ATmega MCUs. This is a very simple operating system for AVR nodes using ATtiny and ATmega MCUs.
It doesn't use administration objects in RAM, it just defines some routine calls which It doesn't use administration objects in RAM, it just defines some routine calls which
have to be added into the system to add new drivers and modules. have to be added into the system to add new drivers and modules.
Without any modules/drivers included the base system uses:
- <500 words of FLASH (<1KB)
- 6 bytes of SDRAM
The following routine types are defined: With full AqHome network stack (including address assignment protocol):
- about 1700 words of FLASH
- <300 bytes SDRAM (including network buffers)
Function Description required add to file
INIT init module/app yes modules_init.asm or apps_init.asm The following system routine types are defined:
RUN called from the main loop no modules_run.asm or apps_run.asm
MSGRECVD called when new messages arrive no modules_msg.asm or apps_msg.asm Function I Description I required I add to file
EVERY100MS called every 100 millisecs (system timer tick) no modules_100ms.asm or apps_100ms.asm -----------+-------------------------------------------------+----------+----------------------------------
EVERY1S called every second no modules_1s.asm or apps_1s.asm INIT I init module/app I yes I modules_init.asm or apps_init.asm
EVERY1M called every minute no modules_1m.asm or apps_1m.asm RUN I called from the main loop I no I modules_run.asm or apps_run.asm
EVERY1H called every hour no modules_1h.asm or apps_1h.asm MSGRECVD I called when new messages arrive I no I modules_msg.asm or apps_msg.asm
EVERY1D called every day no modules_1d.asm or apps_1d.asm EVERY100MS I called every 100 millisecs (system timer tick) I no I modules_100ms.asm or apps_100ms.asm
If the CLOCK module is enable the following routines are also available:
Function I Description I required I add to file
----------+------------------------------------------------+-----------+----------------------------------
EVERY1S I called every second I no I modules_1s.asm or apps_1s.asm
EVERY1M I called every minute I no I modules_1m.asm or apps_1m.asm
EVERY1H I called every hour I no I modules_1h.asm or apps_1h.asm
EVERY1D I called every day I no I modules_1d.asm or apps_1d.asm
Not all modules implement all those functions. Some modules only need to be called Not all modules implement all those functions. Some modules only need to be called