Hi Frank, The cFS uses files for:
There are some commands and APIs that will not work without a file system such as loading a new application from a file system or dumping a log to a file. The cFE Executive Services also creates a RAM disk upon startup. So, I think modifications will be necessary to use cFS without a file system, but all file system calls go through the OS Abstraction Layer so the cFS does not depend on the host OS file system API. Because of this, a file abstraction could be created that is simple enough for qualification but still allows the cFS to operate as designed. An example is the “EEPROM File System” or EEFS which has been used to boot cFS systems: The EEFS has an older RTEMS file system interface, but in your use case, the OSAL would call the EEFS standalone API directly. Note that this public release has not been updated in quite a while. Regards, Alan From: Frank Kühndel Hello, the core Flight System (cFS) is a software platform created by NASA (https://cfs.gsfc.nasa.gov/). It provides essential onboard services for space missions. I would like to use cFS on top of an RTEMS qualified for space by ESA (https://rtems-qual.io.esa.int/). Yet, this qualified RTEMS has no file system. cFS can be configured to be used without IP-networking and with static loader only but I have not found any configuration to disable the file system. Does anyone know whether it is possible to use cFS without a file system or can give advice on using cFS without file system? Of course without file system all applications accessing files will not work. Yet, would at least the core services (such as Executive Service (ES), Software Bus Service (SB), Event Service (EVS), Table Service (TBL), and Time Service (TIME)) be functioning? Greetings and Thanks Frank -- embedded brains GmbH Herr Frank KÜHNDEL Dornierstr. 4 82178 Puchheim Germany email: frank.kuehn...@embedded-brains.de phone: +49-89-18 94 741 - 23 mobile: +49-176-15 22 06 - 11 fax: +49-89-18 94 741 - 08 Registergericht: Amtsgericht München Registernummer: HRB 157899 Vertretungsberechtigte Geschäftsführer: Peter Rasmussen, Thomas Dörfler Unsere Datenschutzerklärung finden Sie hier: https://embedded-brains.de/datenschutzerklaerung/ _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel |
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