add fsk cleaning / demod tool fsktonrz
- used old fskdemod for HID and adjusted it to build the tone tables for any fsk model detected or given. using the tone tables we are able to convert the fsk to clear strong NRZ/ASK even with very weak fsk waves.
- also fixed a small textual bug in `lf search u` output
- also added more graph clearing code to help ensure the demod overlay doesn't show when it shouldn't...
- and improved strong NRZ clock detection.
- fixed bugs in places it used old static values instead of dynamic read values. and removed redundant items.
* uart: Major cleanups
- Adds documentation to the uart API.
- Fixes a buffer overflow issue in `uart_receive`, where the maximum parameter was ignored.
- Splits the maximum length and bytes recieved variables in `uart_receive`.
- Downsizes the receive buffer to the minimum required, saving 16MiB of RAM at runtime.
- Refactors the POSIX and Win32 implementations of uart into separate files.
- Removes the unused `uart_{get,set}_parity` functions, which were not implemented on Win32.
endless loop in reader if no tag was found
button press on pm3 did not cancel.
led_b was left on in some cases
also moved 14b detection to last in hf search to help speed up the
command for the other tags. 14b is slow (does multiple tests)
Thanks to @Fl0-0 and @pwpiwi for their idenfication of some of the
issues.
memory locations in code are now accurate and the CC output is not
corrupted by the config's crc.
also the looping and flags for what to read are now correctly
implemented in the code.
clean up output
allow readblock without authenticating (can read blocks 0, 1, 2, 5
without authenticating.)
add Application Issuer Area to reader output and use it to attempt to
identify legacy vs NOT legacy.
* coverity fixes
cmdhflegic- indications are the i in calls to data_buf[i] could = 1052
and overflow the array.
cmdhfmfhard - +1 to add space for string null terminator - should we add
the 0 terminator value too?
reveng.c - memory leak
util.c - fix potential overflow of array buf[]
util_posix.c - possible integer overflow
* fix help errors
* fix sprint_hex_ascii
again
and this function is not even used anywhere... yet...
