From 8e7002342b43f69d623382129e4fee751e7402ea Mon Sep 17 00:00:00 2001 From: James Marshall Date: Sat, 1 Jul 2017 07:43:49 -0400 Subject: [PATCH] Update readme. --- README.md | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 50caba27..cf064151 100644 --- a/README.md +++ b/README.md @@ -1 +1,13 @@ -# CF \ No newline at end of file +# CCSDS File Delivery Protocol + +NASA core Flight System File Transfer Application + +## Description + +The CCSDS File Delivery Protocol (CFDP) application (CF) is a core Flight System (cFS) application that is a plug in to the Core Flight Executive (cFE) component of the cFS. + +The cFS is a platform and project independent reusable software framework and set of reusable applications developed by NASA Goddard Space Flight Center. This framework is used as the basis for the flight software for satellite data systems and instruments, but can be used on other embedded systems. More information on the cFS can be found at [http://cfs.gsfc.nasa.gov](http://cfs.gsfc.nasa.gov) + +The CF application is used for transmitting and receiving files. To transfer files using CFDP, the CF application must communicate with a CFDP compliant peer. + +CF sends and receives file information and file-data in Protocol Data Units (PDUs) that are compliant with the CFDP standard protocol defined in the CCSDS 727.0-B-4 Blue Book. The PDUs are transferred to and from the CF application via CCSDS packets on the cFE's software bus middleware.