iso15 sniffing: intragrate 2SC sniffing in same FPGA mode

Browse source

switching Fpgamode while sniffing with FpgaWriteConfWord() was
sometimes too long so the tag answer start was lost.
Now, (only with FPGA_BITSTREAM_HF_15) with "FPGA_HF_READER_MODE_SNIFF_AMPLITUDE |
FPGA_HF_READER_2SUBCARRIERS_424_484_KHZ": the amplitude is shrank
from its 2 LSB bits and those 2 bits are now used to return the current
frequency. From my tests, this 2 bits reduction does not affect
quality of 1SC sniffing, but it may have slightly reduced the
receiving range.

FPGA FSK decoding code is also improved.

...

This commit is contained in:

Yann GASCUEL 2022-03-04 09:45:12 +01:00

parent 1f7bce5580

commit 38d49097f9

7 changed files with 469 additions and 52 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

BIN

fpga-xc2s30/fpga_hf_15.bit

View file

Binary file not shown.