newRPL: [UPDATED April 27-2017] Firmware for testing available for download

[Claudio L.]

(08-08-2016 06:28 PM)matthiaspaul Wrote:  PS. Perhaps all these filesystem related discussions should be split out to a new thread in order not to bore the other readers?

Perhaps we should. For the time being I'm quietly working on implementing all these things, trying hard not to break anything. I implemented the new partial FAT scan feature, so far so good: much faster mount, I read and scan only 3 sectors at a time. The 3 sectors is so I don't have to deal with cluster info being "cut" between sectors in FAT12. Now I need to make it detect and use the hint in the BPB for FAT32, as well as update it when it exists.
3 sectors = 1024 clusters in FAT12, 768 in FAT16, or 384 in FAT32. With 384 free clusters, you can store 384 variables with SDSTO, or write 1.5 MB of data (assuming 4k clusters) before needing a second 3-sector scan so the user should not feel the slowdown of normal operations.