**DEVICE FIRMWARE UPDATE**
The code changes needed to support long tag emulation required an update to the device firmware. As of this patch, devices running older firmware will not be able to read or emulate HID tags until the firmware is updated. Additionally, devices with the firmware from this update or newer will not properly read or encode HID tags with a prior version client.
The 'lf hid encode' command has been further refined, and is now entirely parameterized to support use of fields other than facility code and card number. The client help data has been updated to show the correct syntax.
* allow common makefile options-defines
* remove non-existing file references
* Uncomment lcd option (still) not enabled by default
use Makefile_Enabled_Options.common
to enable lcd if desired.
* Add Smartcard Functions
* add smartcard to menu + make get atr work
sc is now functioning as far as my limited knowledge takes me
* sc cleanup - add init to all sc commands...
because cmds won't work until the first init happens. (multiple inits
don't appear to affect it negatively)
* default options to exclude Smartcard
for main repo
* update changelog
* Legic: rewrite reader to use xcorrelation and precise timing
- Even tough Legic tags transmit just AM, receiving using
xcorrelation results in a significantly better signal
quality.
- Switching from bit bang to a hardware based ssc frees
up CPU time for other tasks e.g. prng and demodulation
- Having all times based on a fixed ts, results in perfect
rwd-tag synchronization without magic +/- calculations.
* hi_read_tx: remove jerry-riged hysteresis based receiver
- This feature got obsolete by a x-correlation based receiver.
* Legic: adjusted sampling to new ssp clock speed
- Sampling is 4 times faster and pipeline daly reduced to 1/4.
The new code samples each bit earyler to account for the
shorter pipeline. That introduced bit errors by leeking the
next bit into the current one.
* Legic: average 8 samples for better noise rejection.
* Update CHANGELOG.md
* ISO15693 device side improvements
* increase accuracy by doubling the sample frequency (hi_read_rx_xcorr.v)
* adjust armsrc/iso15693.c and client/cmdhf15.c accordingly
* use more accurate approximation for sqrt(ci^2 + cq^2)
* improve EOF detection (was often mistaken for Logic0, resulting in "error, uneven octet! (extra bits!)")
* hi_read_r_xcorr.v: avoid overflows during accumulation and truncation
* explicitely cast unsigned ADC samples to signed
TC1 counts the number of TC0 overflows (carry bits).
In random conditions TC1 would return or stay at zero,
instead of counting up. This due to the behavior of the
reset signal.
SAM7S Series Datasheet, 33.5.6 Trigger:
Regardless of the trigger used, it will be taken into account
at the following active edge of the selected clock. This means
that the counter value can be read differently from zero just
after a trigger, especially when a low frequency signal is
selected as the clock.
The new code first prepares TC1 and asserts TC1 trigger and
then prepares TC0 and asserts TC0 trigger. The TC0 start-up
will reset TC1.
* create fpga version info at compile time (by additional functionality in fpgacompress)
* remove hw version caching (prepare USB reconnect)
* fix calculation of available compressed bytes in fpga_loader.c
to use lf config settings instead of it's own settings. (now allows
full options of lf config...)
also it will now run `data samples` when the command completes making it
not necessary to run manually...
note: adjusted client wait message as it was confusing.
by setting delay to 0 we can use cmd binary to bitbang the antenna.
note that the timing isn't perfect (especially on the off periods) but
is fairly close. worst i've seen it off is 8us on a large off period.
but i don't have the best test equipment...
* prevent WDT crash on repeated tries
* comes with faster execution as side effect
* use uint8_t instead of byte_t
* populate ar instead of (correctly) assuming that it is zero
* remove the "will take a few seconds longer" message because it is no longer true
CHG: 'hw tune' adapting LF measuring from ( >> 8) max 65v, to ( >>9 ) max 130v in the graph data. Max LF voltage is 140.8v to measure.
Added a delay for antenna coil and caps to power up before measuring,
removed a variable in ReadAdc
* allow additional 2 ssp_frame cycles to detect SOF
* use only respective functions to get/set iso14a_timeout
* remove waiting time in MifareAcquireEncryptedNonces(). This is covered by GetATQA() now.
cotag read could enter endless loop, now cancels if the next bit doesn't
appear
em4x05 detection would loop due to a threshold never being met, now has
a dump out after 1000 samples tested.
fixed some indenting in hitag2 while i was reviewing that code for
potential endless loops...
