Starting an XModem transfer the first frame being send out starts with 0x02 0x01 0xFE.
This indicates to me the begining of a 1024-byte block and not the expected 128-byte block.
Is there a fix for this?
I'm trying to debug previously working apps that do XMODEM transfers. Something changed and I do see the same three characters at the beginning of the block or sometimes as a separate packet preceding the 1K block: