SLE4442 Broken on Bus Pirate 6 Firmware Main 2026-05-27

General
1

Just got the Bus Pirate 6 and updated to the most current firmware for it and have the KF-011C adapter but it looks like the SLE4442 module is broken on it since it doesn’t work with ‘init’ or ‘dump’ commands and ‘sniff’ keeps throwing 0xFF output none-stop.

There’s also some strangeness going on when the 2WIRE mode is active and the IO pins are all connected by wires and taps through a pass-through adapter with a SmartCard SLE4442 in it, but extra bytes are produced when the AlcorLink AU9450 USB SmartCard reader does the ATR for init and when it tries to read any memory data it always outputs 0xFF.

When BP6 is put back into HiZ mode that all stops and the USB reader is able to get the data correctly but I can’t seem to figure out how to capture the communications correctly since FALA produces nothing and the ‘logic’ command doesn’t show any data being captured. Might just be me not configuring the logic captures correctly though.

There are already threads about this mentioning that the Bus Pirate 6 has PIO problems and something about an E9 bug on the RP2350 chip but they are from 2024 and it’s 2026 now without any fixes.

https://forum.buspirate.com/t/2wire-sniffer-for-sle4442-ic-cards-and-tm1640-led-driver/1077

This thread also mentions that the Bus Pirate 5 REV10 seems to work correctly so I would guess that the firmware for BP6 has errors in it due to the pin changes on the BP6 RP2350 from the BP5 RP2040 chip.

Any chance of getting this fixed anytime soon? Otherwise I might have to order the older BP5REV10 to continue working on my project.

Firmware Info

Bus Pirate 6
https://BusPirate.com/
Firmware main branch @ d821f13 (May 27 2026 14:21:18)
RP2350B with 512KB RAM, 128Mbit FLASH
S/N: CFC5E7B5D0A3208F
Storage:   0.10GB (FAT16 File System)
Terminal: 147x117

Configuration file: Loaded
Active binmode: Follow along logic analyzer
Available modes: HiZ 1WIRE UART HDUART I2C SPI 2WIRE 3WIRE DIO LED INFRARED JTAG
Active mode: HiZ

Display format: Auto

2WIRE Mode

HiZ> m 2WIRE -s 20


Mode: 2WIRE
Logic analyzer speed: 160000Hz (8x oversampling)
Use the 'logic' command to change capture settings

2WIRE> W 5 100; P; L

5.00V requested, closest value: 5.00V
100.0mA requested, closest value: 100.0mA
Undervoltage limit: 4.50V (10%)

Power supply:  Enabled
Vreg output: 5.0V, Vref/Vout pin: 5.0V, Current: 2.6mA

Pull-up resistors: Enabled (10K ohms @ 5.0V)

Bitorder: LSB 0b00000001

SLE4442 Init & Dump = Error reading security memory

2WIRE> sle4442 init

--SLE44xx decoder--
ATR: 0xa2 0x13 0x10 0x91
Protocol Type: S 10
Structure Identifier: General Purpose (Structure 1)
Read: Read to end
Data Units: 256
Data Units Bits: 8
Security memory: 0xff 0xff 0xff 0xff
Error reading security memory

Logic analyzer: 997 samples captured



2WIRE> sle4442 dump

--SLE44xx decoder--
ATR: 0xa2 0x13 0x10 0x91
Protocol Type: S 10
Structure Identifier: General Purpose (Structure 1)
Read: Read to end
Data Units: 256
Data Units Bits: 8
Security memory: 0xff 0xff 0xff 0xff
Error reading security memory

Logic analyzer: 996 samples captured

Manual SLE4442 Commands

2WIRE> } {^} r:4


RST LOW
RST HIGH
Tick clock: 1
RST LOW
RX: 0xA2 0x13 0x10 0x91

Logic analyzer: 282 samples captured



2WIRE> [ 0x30 0x00 0xFF ] r:256


I2C START
TX: 0x30 0x00 0xFF
I2C STOP
RX: 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
    0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF


Logic analyzer: 16616 samples captured

2WIRE Sniff

The sniffer output is in MSB (Most Significant Bit) first l format even though LSB (Least Significant Bit) first L command was used in the 2WIRE mode. This should be updated in the firmware to respect the L bit order set before sniff command.

2WIRE> sniff

2Wire Sniffer
Press x to exit


 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
...

Initialize (ATR)
[ 0xA2 0xE4 0x04 0x44 

Read Main Memory
[ 0x0C 0x00 0x00]
[]
0x8A 0x8B 0x90 0x11 0x13

Read Protection Memory
[ 0x2C 0x00 0x00]
 0xFF 0xFF 0xFF 0xFF

Read Security Memory
[ 0x8C 0x00 0x00]
 0xE0 0x00 0x00 0x00


Logic analyzer: 131072 samples captured

So the sniffer is just dumping 0xFF as ones non-stop with some data in it when I use the USB SmartCard reader and the AlcorLink AU9450 Demo software to send the Intialize (ATR) button and the Read Main Memory button or Read Protection Memory or Read Security Memory buttons. I can change the 2WIRE speeds from 20KHz to 50KHz to 1,000KHz but the results are the same.

If I let the USB SmartCard reader drive the voltage and not enable the power supply on the BP6 then the sniff command doesn’t dump 0xFF non-stop but the results of the commands of reading the memory always end up as 0xFF after the first few bytes that are actually read correctly. Not even the second 16-bytes of the cards hard-coded data is read, just the first few bytes.

2WIRE Sniff

The sniffer output is in MSB (Most Significant Bit) first l format even though LSB (Least Significant Bit) first L command was used in the 2WIRE mode. This should be updated in the firmware to respect the L bit order set before sniff command.

2WIRE> m 2WIRE -s 1000


Mode: 2WIRE
Logic analyzer speed: 8333333Hz (8x oversampling)
Use the 'logic' command to change capture settings

2WIRE> L

Bitorder: LSB 0b00000001
2WIRE> sniff

2Wire Sniffer
Press x to exit
[[]
[]
 0x8A 0x8B 0x90 0x11[ 0x00 0x00 0x00]
 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF[ 0x0C 0x00 0x00]
[]
 0x8A 0x8B 0x90 0x11 0x13 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF[ 0x0C 0x00 0x00]
[]
 0x8A 0x8B 0x90 0x11 0x13 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF[ 0x0C 0x00 0x00]
[]
 0x8A 0x8B 0x90 0x11 0x13 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF[[]
 0x18 0x00 0x00]
[]
 0x8A 0x8B 0x90 0x11[[]
 0x00 0x00 0x00]
 0xFF 0xFF 0xFF 0xFF[ 0x2C 0x00 0x00]
 0xFF 0xFF 0xFF 0xFF[ 0x2C 0x00 0x00]
 0xFF 0xFF 0xFF 0xFF[ 0x2C 0x00 0x00]
 0xFF 0xFF 0xFF 0xFF[ 0x2C 0x00 0x00]
 0xFF 0xFF 0xFF 0xFF[ 0xA2 0xE4 0x04 0x44[ 0xA2 0xE4 0x04 0x44[ 0x0C 0x00 0x00]
[]
 0x8A 0x8B 0x90 0x11 0x13 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF

The moment that I leave 2WIRE mode back to HiZ all the reader commands start working correctly on the demo software even with all of the taps and leads still connected.

Any help with this BP6 would be appreciated.

1 Like
2

I will test this and if there’s an bug I’ll push a fix asap. Will be a few days as I’m flying at the moment.

My suspicion is it’s all the stuff connected, and I’m not fully sure the sniffer can handle the ATR. It’s for devices that use a “pure” 2 Wire mode.

It’s definitely not E 9, that was a problem with the PI chip. We pushed a fix and replaced all effected hardware.

3

The sniffer output is in MSB (Most Significant Bit) first l format even though LSB (Least Significant Bit) first L command was used in the 2WIRE mode. This should be updated in the firmware to respect the L bit order set before sniff command.

1 Like