The software for the OBC runs on dedicated hardware. The CPU used is a LPC1769 from NXP. Therefore the used IDE is NXP provided "MCUXpresso". The projects follws the NXP "LPCOpen-project-layout" but iso IDE delivered "175x-6x" we use our own library development based on NXPs code here. The project is written in C. The C standard library used and linked is the NXP delivered "REDLIB" in its "Redlib(none)" version.
Versions used (status 01-2022):
| MCUXpresso IDE | arm-none-eabi-gcc | redlib(none) | ADO-Lib |
|---|---|---|---|
| v11.4.0_6237 | ??? | ??? | [release_1_0] branch! (no release tag yet!) |
The project makes no use of any additional OS or RTOS code or libraries. It uses a self designed modularization approach based on a simple cooperative multitasking implementation. Main goal of the modularization is to have core functionality for the OBC hardware in place. Additional external units should be 'plugable' dependent of chosen external connections and sub units in the final CubeSat system. Secondary goal is to have all developed modules available for different actual (e.g. test or prototyping versions) or future projects with the LPC1769.
To achieve this goals a layered approach is used:
