STX not escaped in transmit()

[brocci]

transmit() does not DLE-escape STX (0x02) data bytes, which can cause the CMRInet host to misinterpret output data as start-of-text and desynchronise.

Example

With a 1-byte output buffer containing {0x02}:

• Current: FF FF 02 41 54 02 03 → host sees 02 in data → misinterpreted as STX
• Should be: FF FF 02 41 54 10 02 03 → DLE-STX correctly interpreted as data value 0x02

Reference

CMRInet spec LCS-9.10.1 v1.1, §Data Link Escape (DLE) Processing