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- I was given an AEA PK-80 tnc which I modified for use with NET.EXE, by
- adding a hex loader to permit tnc2kiss.hex to be loaded and run in the PK80.
- To squeeze the loader into the 27128 EPROM I had to truncate the signon
- message. The PK80 came with version 1.1.2 roms. This archive contains
- the loader source (tnc2baea.mac) and an already-patched binary file
- (aea112k.bin) containing the hex loader. I suspect AEA won't care that
- I am providing their (patched) firmware, since the pk80 is out of pro-
- duction. Incidently, I had to remove the MF-xxx filter chip which was
- damaged in a lightning strike. The PK-80 works well enough without it.
-
- Incidently, the loader I added will verify the checksums of the hex
- loader records. It will loop while blinking the STA led if an error
- is found. As Murphy would have it, the hex file tnc2kiss.hex was
- distributed with bad checksums! I provide a corrected version in
- tnc_tnc2.arc.
-
- Operation of the loader is the same as for TAPR tnc2s ... when powered
- on, the TNC awaits either reception of the hex file to program it for
- KISS mode, or a control-e to identify itself, or an H to enter
- the 'normal' tnc2 operation.
-
- 73, de N5KNX