Hi Richard,

I take your point however in my logging application I don't need a file system.

Presently data is being streamed via 4G and the planned logger will be there only to safeguard against Telstra comms failures - not frequent but has occurred leaving 'holes' in data that compromises the modelling. After such an event a second modem port will allow a remote connection to interrogate the logger, search for the time/date wanted and download the missing information.

I plan on using the Flash as a lump of memory with each 15byte record [GPS time/date stamped+data] being written contiguously. The only housekeeping necessary will be to stay within the bounds of the device's page/block and address limits. I'm using a large Flash size to maximize time before overwriting of cells becomes necessary and expect to get near 1 year of 1 minute records before this happens.

Any further thoughts or comments you may have are welcome.

Cheers,
Bill