Adds an opt-in `--rgb` flag to the continuous `hf tune` / `lf tune` commands that
mirrors the antenna tuning level on the PM5 antenna RGB LED: blue = low, green =
mid, red = high, tracking the on-screen bar so you can find coupling (e.g. an
implant) by feel without watching the screen.
The colour is computed client-side from the same per-iteration voltage / running
peak the bar uses (so it matches the bar and auto-scales), and pushed to the
device via a new dumb CMD_PM5_RGB_SET {r,g,b}. That command is handled (#ifdef
PM5) by a dedicated AT32 RGB HAL module, common_arm/rgb/{rgb_apis.h,
rgb_hw_at32.c} (RgbLedSet(), I2C controller @ 0x48), wired into the armsrc
Makefile/CMake as SRC_RGB for PM5 only - so no other platform is affected and no
hardware code lands in shared files.
in appmain.c and cmd added.
in cmd.c and add some code for test CEP
in em4x50.c(Do not timeout--)
in em4x70.c
in emvsim.c
in epa.c
in felica.c
in felicasim.c
in felicasim.c
in hfops.c
in hfsnoop.c
in hitag2.c
in hitag_common.c(Cross-platform implementation is incomplete.)
in hitagS.c
in hitagu.c
in i2c.c(Incomplete, continue to abstract.)
in i2c_direct.c
in iclass.c
in iso14443a.c(Sniff no finish yet)
in iso14443b.c and fixed bug for st25
in iso15693.c
in legicrf.c
in legicrfsim.c
in lfadc.c(lf_count_edge_periods_ex() improved)
in lfops.c(TI tag no finish yet)
in lfsampling.c
in lfzx.c
in mifarecmd.c
in mifaredesfire.c
in mifaresim.c
in mifaresniff_disabled.c
in mifareutil.c
in pcf7931.c
in sam_xxx
in secc & seos
in start.c
in thinfilm.c
in utils
- "lf cotag reader": now behaves mostly the same as "lf read",
except it is dedicated for COTAG.
- It makes sure to send COTAG start sequence and to use
real time sampling mode to get enough samples.
- "lf cotag demod": Working client-side COTAG demodulation implementation
(high-low raw demod + Manchester demodulation from high/low demod).
- Now uses samples directly from g_GraphBuffer
- Supports 3 types of COTAG preamble (1 active, 2 passive), which
can start anywhere in the samples.
- Prints full 128-bits of COTAG tag data in 3 formats: raw,
groupped by nibbles, and in hex, and identifies and
prints out the card number.
Signed-off-by: andrej@towelbyte.net
Add ISO 15693 16-slot inventory with anti-collision tree-walking, reachable via 'hf 15 reader --all'; single-tag reading stays the default. The firmware steps the 16 slots with EOF markers and flags 'signal but no decode' slots as collision hints; the client walks the UID mask tree, validates CRC per slot to confirm real collisions, and dedups discovered tags. Single-tag reading (default) and 16-slot inventory (--all) both run under hf 15 reader.
Issue origin:
Commit 6b7665ed5 "Added live fc/cn update to hf iclass tagsim" added a data_available() poll inside the per-byte DMA loop of GetIso15693CommandFromReader so the ARM could drop out of RF-listen and process live emulator updates.
Before that commit, that tight loop had no USB poll at all — only gotFrame / BUTTON_PRESS / WDT_HIT. Verified via git show 6b7665ed5^:armsrc/iso15693.c.
Why it shows up on sim -t 3/6/7: those are the FULL sim modes that share do_iclass_simulation. Between reader commands the decoder sits in STATE_READER_UNSYNCD, so the gated poll at iso15693.c:1570-1575 fires every byte (reading UDP peripheral registers). With DMA filling at ~1 byte / ~19 µs, the added USB register reads plus jitter occasionally push the CPU past the 90% lag threshold → behindBy 461 with DMA_BUFFER_SIZE=512.
Commit fb8f94fa2 narrowed the gate to UNSYNCD to stop mid-frame exits, but the per-byte poll itself is still what's new on that path.
Fix:
New mode constant in include/iclass_cmd.h:
#define ICLASS_SIM_MODE_FULL_LIVE 8 // FULL + allow USB interrupt for live emul updates
Treat it identically to ICLASS_SIM_MODE_FULL everywhere except for the poll gate.
Add a flag param to GetIso15693CommandFromReader — e.g. bool allow_usb_interrupt in iso15693.c:1495 and iso15693.h:42. Wrap the poll:
if (allow_usb_interrupt &&
(dr->state == STATE_READER_UNSYNCD ||
dr->state == STATE_READER_AWAIT_1ST_FALLING_EDGE_OF_SOF) &&
data_available()) { ... }
Pass true only for live mode in do_iclass_simulation iclass.c:502:
bool live = (simulationMode == ICLASS_SIM_MODE_FULL_LIVE);
len = GetIso15693CommandFromReader(receivedCmd, MAX_FRAME_SIZE, &reader_eof_time, live);
The len == -2 drain block stays but becomes dead code for non-live modes (never returns -2).
Client side: cmdhficlass.c:1687 (CmdHFiClassTagSim) sends ICLASS_SIM_MODE_FULL_LIVE. CmdHFiClassSim -t 3/6/7 keeps sending ICLASS_SIM_MODE_FULL / _GLITCH / _GLITCH_KEY.
Other callers (iso15693.c:2270, iclass.c:1121 = reader-attack sim) pass false.
Result:
hf iclass sim -t 3/6/7 → byte-inner loop is back to its pre-tagsim shape → no blow-buffer abort.
hf iclass tagsim → keeps live update ability; still has the overhead, but that's the trade-off the feature needs.
Niel Nielsen