Increase SD card speed (and file transfer) by roughly 10x for Tanmatsu and Konsool #4
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a V2 version of file download for faster speeds and less timeout problems
renzenicolai
requested changes
Dec 11, 2025
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This should be now much more sane. And the .proto is now updated. (Slight change of plan: version number is now uint32 instead of uint16. I think there's a limitation with nanopb, but i'm not sure. |
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File operations to the SD card were largely hampered by slow buffering in PSRAM. This change allows setting some defined to allocate SRAM buffers on fopen/fclose operations.
Combined with a few changes in the Tanmatsu launcher app, this increased SD card read and write speeds by roughly a factor of 10.
This, in turn, cuts down massively on the time required to transfer a file.
There are optimizations in the upload/download protocol as well. Should be backwards compatible, though, because it now supports protocol version negotiation.