iso7816_3_compute_fd_ratio() multiplied F by D for every d_index >= 8,
presumably because the upper half of ISO 7816-3 Table 8 encodes 1/D.
But 7816-3 2006 and 1997 differ!
That assumption is only true for the range 1010..1111, which in the
2006 version is RFU. Indices 1000 and 1001 are Di = 12 and Di = 20,
see iso7816_3_di_table[].
So right now Fi=372/Di=12 -> 372 * 12 = 4464 instead of 372 / 12 =
31.
In the cemu value is rejected in emu_update_fidi()
and the old baud rate is silently kept.
In the sniffer update_fidi() programs US_FIDI as
4464 & 0x7ff = 368, which is garbage.
Use F/D for indices 1..9 and keep the legacy 1/D reading only for the RFU
range, where we cant really do anything useful anyway.
Change-Id: I44d6451d8b04aea2b0db7291b06a812afe84e52f
Remove the paragraph about writing to the Free Software Foundation's
mailing address. The FSF has changed addresses in the past, and may do
so again. In 2021 this is not useful, let's rather have a bit less
boilerplate at the start of source files.
Change-Id: Ie0a3b2273383adbb3303faffd6ff96be7f4cae99
Fi/Di are not the index into the table, but the contents of the table
as resolved by Fi_index / Di_index. Let's clarify the terminology.
Change-Id: If364e08e7c9a3a9707e6d54b9267c6a7c088e415
This way we can easily check with 'diff' for differences in our code and
Atmel softpack. Also, this layout is more suitable for building various
different firmware images (e.g. factory-test, dfu-loader, main
application) for a variety of different boards (simtrace, owhw, qmod).
Eric Wild