After updating an app to work with the latest ES32 boards (v3.x.x) transfers of large files (images up to 100K) started to fail. This seems to be due to the block size causing problems in the _NewData sub, specifically on return from the sub (stack problems?). I'm using B4RSerializator to transfer the blocks and related information (file size, name, etc.).
Reducing the block size to 1250 solves the crash but is very slow.
Are there any examples of fast transfer of large files? I haven't been able to find any.
Thanks