Communication fail when reading a strix4k

[AndColla]

Describe the bug Proxmark hw disconnect after a hf search with a strix4k tag on the hf antenna. With the original firmware I don´t have any issue and gat the correct answer.

To Reproduce Steps to reproduce the behavior:

1. Launch hf search with a strix4k tag on the hf antenna
2. See screenshot 1

Expected behavior The hardware should not disconnect and I should get the correct infos. See screenshot 2 for the output from the original fw/client

Screenshots Error: Original fw/client:

Desktop (please complete the following information):

• OS: Arch Linux x86_64 Kernel: 5.11.11-arch1-1

• hw version [ Proxmark3 RFID instrument ]

  [ CLIENT ] client: RRG/Iceman/master/v4.9237-3428-gb6ab16637 2021-04-03 10:53:31 compiled with GCC 10.2.0 OS:Linux ARCH:x86_64

  [ PROXMARK3 ] firmware.................. PM3 GENERIC

  [ ARM ] bootrom: RRG/Iceman/master/v4.9237-3428-gb6ab16637 2021-04-03 10:54:04 os: RRG/Iceman/master/v4.9237-3428-gb6ab16637 2021-04-03 10:54:25 compiled with GCC 10.2.0

  [ FPGA ] LF image built for 2s30vq100 on 2020-07-08 at 23: 8: 7 HF image built for 2s30vq100 on 2020-07-08 at 23: 8:19 HF FeliCa image built for 2s30vq100 on 2020-07-08 at 23: 8:30

  [ Hardware ] --= uC: AT91SAM7S512 Rev B --= Embedded Processor: ARM7TDMI --= Internal SRAM size: 64K bytes --= Architecture identifier: AT91SAM7Sxx Series --= Embedded flash memory 512K bytes ( 53% used )

• hw status [#] Memory [#] BigBuf_size.............44248 [#] Available memory........44248 [#] Tracing [#] tracing ................1 [#] traceLen ...............0 [#] dma8 memory.............-2109920 [#] dma16 memory............-2109920 [#] toSend memory...........-2109920 [#] Current FPGA image [#] mode.................... HF image built for 2s30vq100 on 2020-07-08 at 23: 8:19 [#] LF Sampling config [#] [q] divisor.............95 ( 125.00 kHz ) [#] [b] bits per sample.....8 [#] [d] decimation..........1 [#] [a] averaging...........Yes [#] [t] trigger threshold...0 [#] [s] samples to skip.....0 [#] LF Sampling Stack [#] Max stack usage.........3928 / 8480 bytes [#] LF T55XX config [#] [r] [a] [b] [c] [d] [e] [f] [g] [#] mode |start|write|write|write| read|write|write [#] | gap | gap | 0 | 1 | gap | 2 | 3 [#] ---------------------------+-----+-----+-----+-----+-----+-----+------ [#] fixed bit length (default) | 31 | 20 | 18 | 50 | 15 | N/A | N/A | [#] long leading reference | 31 | 20 | 18 | 50 | 15 | N/A | N/A | [#] leading zero | 31 | 20 | 18 | 40 | 15 | N/A | N/A | [#] 1 of 4 coding reference | 31 | 20 | 18 | 34 | 15 | 50 | 66 | [#] [#] HF 14a config [#] [a] Anticol override....std : follow standard [#] [b] BCC override........std : follow standard [#] [2] CL2 override........std : follow standard [#] [3] CL3 override........std : follow standard [#] [r] RATS override.......std : follow standard [#] Transfer Speed [#] Sending packets to client... [#] Time elapsed............500ms [#] Bytes transferred.......308736 [#] Transfer Speed PM3 -> Client = 617472 bytes/s [#] Various [#] Max stack usage.........4088 / 8480 bytes [#] DBGLEVEL................1 ( ERROR ) [#] ToSendMax...............-1 [#] ToSend BUFFERSIZE.......2308 [#] Slow clock..............32351 Hz [#] Installed StandAlone Mode [#] HF - Reading Visa cards & Emulating a Visa MSD Transaction(ISO14443) - (Salvador Mendoza)
• data tune =] ---------- LF Antenna ---------- [+] LF antenna: 40,82 V - 125,00 kHz [+] LF antenna: 40,41 V - 134,83 kHz [+] LF optimal: 47,96 V - 129,03 kHz [+] Approx. Q factor (): 8,4 by frequency bandwidth measurement [+] Approx. Q factor (): 13,9 by peak voltage measurement [!] ⚠️ Contradicting measures seem to indicate you're running a PM3_OTHER firmware on a RDV4, please check your setup [+] LF antenna is OK [=] ---------- HF Antenna ---------- [+] HF antenna: 33,94 V - 13.56 MHz [+] Approx. Q factor (*): 9,9 by peak voltage measurement [+] HF antenna is OK

Additional context data tune says that I´m running a PM3_OTHER firmware on a RDV4, but I´m using a Proxmark3 easy I´m currently running the latest version from github (commit b6ab166377f47dbfd92993f76ff6edbfb0a9d496)

[AndColla]

I´ve read issue #921 and in theory ISO14443B should work (FeliCa crashes, all others OK), but it only works in release v4.9237

[iceman1001]

Thanks for reporting it. Here I thought it was stable enough to enable it in hf search , I reverted it and your 14b should be detected nice again if you pull latest

[AndColla]

I just pulled the latest commit and got the same problem

[iceman1001]

You got the same???? That doesn't make any sense. What are you doing?

[AndColla]

I´m just doing a hf search, nothing special With original firmware or with release v4.9237 I don´t have any issue

[iceman1001]

What is the output when you run hf search on latest source?

[AndColla]

This is the output on latest source (commit 160941c280d642874c85444fe5db366254079d44)

[iceman1001]

Ok, confirmed, I found my 14b tag, and hf search get stuck.

[iceman1001]

try pulling latest and test. I pushed a fix https://github.com/RfidResearchGroup/proxmark3/commit/2119c4e7bd918290266f45a1823dd7dc8c0809f0

[AndColla]

I confirm that it's working on 0d04c14be34e4f732282fe5605ccc3f1b0e6f3fe