hi every one
I’m building a small tool for quality test of our drones and I’m using pymavlink and dronekit to download dataflash log of drone
I’m sending LOG_REQUEST_LIST message to get log indexes
I get back several LOG_ENTRY message and it looks ok
after that I’m requesting the just before last log index with size of file by sending LOG_REQUEST_DATA and it looks to work ( almost at begining ) I got some LOG_DATA answer but it stop in middle of file and if I look in detail LOG_DATA.ofs (offset from start of file) some time it skip part of file for restarting later in the file … but in any case it never ends to send all block of data 
every bock is 90 byte sized and looks ok
I’m trying in SITL for the moment but it must be same anywhere …
thanks for any help full idea …
cordially
You need to go back and fill the gaps in yourself.
You might like to check mavproxy’s log download module for inspiration.
Peter
thank’s for your help