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Published 20 hours ago • verified publisher icon probe-rs

Can't make it run with NRF52840 - Error: Failed to get information for AP ApAddress { dp: Default, ap: 0 }

Open rracariu opened this issue 2 years ago • 13 comments

Describe the bug Trying to run of flash a program on an NRF52840 - Adafruit Feather Sense - will always fail with:

Error: Failed to get information for AP ApAddress { dp: Default, ap: 0 }

To Reproduce Tested with embassy-rs nrf examples such as:

cargo run --bin blinky

or

cargo flash --bin blinky --chip nRF52840_xxAA --connect-under-reset

Expected behavior Expected to work as JLink's proprietary tools work.

Stacktrace

Debug output 
(HOST) DEBUG J-Link interface is #0
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:397
(HOST) TRACE write 1 bytes: [e8]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 4 bytes: [33, 58, ea, 88]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG legacy caps: GetHwVersion | ReadConfig | WriteConfig | GetMaxBlockSize | GetHwInfo | ResetStopTimed | SelectIf | GetCounters | GetCpuCaps | ExecCpuCmd | Swo | Register | GetCapsEx
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:450
(HOST) TRACE write 1 bytes: [ed]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 32 bytes: [33, 58, ea, 88, c, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG unknown ext. capability bits: 0x280C88EA5833 truncated to 0x88EA5833 (Reserved0 | GetHwVersion | ReadConfig | WriteConfig | GetMaxBlockSize | GetHwInfo | ResetStopTimed | SelectIf | GetCounters | GetCpuCaps | ExecCpuCmd | Swo | Register | GetCapsEx)
└─ jaylink::capabilities @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/capabilities.rs:96
(HOST) DEBUG extended caps: GetHwVersion | ReadConfig | WriteConfig | GetMaxBlockSize | GetHwInfo | ResetStopTimed | SelectIf | GetCounters | GetCpuCaps | ExecCpuCmd | Swo | Register | GetCapsEx
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:467
(HOST) TRACE write 2 bytes: [c7, ff]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 4 bytes: [3, 0, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG opened probe
└─ probe_run::probe @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-run-0.3.5/src/probe.rs:33
(HOST) DEBUG Attaching to J-Link
└─ probe_rs::probe::jlink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/mod.rs:456
(HOST) TRACE write 2 bytes: [c7, 1]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 4 bytes: [1, 0, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG Attaching with protocol 'SWD'
└─ probe_rs::probe::jlink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/mod.rs:476
(HOST) INFO  J-Link: S/N: 123456
└─ probe_rs::probe::jlink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/mod.rs:484
(HOST) DEBUG J-Link: Capabilities: GetHwVersion | ReadConfig | WriteConfig | GetMaxBlockSize | GetHwInfo | ResetStopTimed | SelectIf | GetCounters | GetCpuCaps | ExecCpuCmd | Swo | Register | GetCapsEx
└─ probe_rs::probe::jlink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/mod.rs:485
(HOST) TRACE write 1 bytes: [1]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 2 bytes: [70, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) TRACE read 112 bytes: [4a, 2d, 4c, 69, 6e, 6b, 20, 41, 52, 4d, 2d, 4f, 42, 20, 53, 54, 4d, 33, 32, 20, 63, 6f, 6d, 70, 69, 6c, 65, 64, 20, 41, 75, 67, 20, 32, 32, 20, 32, 30, 31, 32, 20, 31, 39, 3a, 35, 32, 3a, 30, 34, 0, 43, 6f, 70, 79, 72, 69, 67, 68, 74, 20, 32, 30, 30, 33, 2d, 32, 30, 30, 38, 20, 53, 45, 47, 47, 45, 52, 3a, 20, 77, 77, 77, 2e, 73, 65, 67, 67, 65, 72, 2e, 63, 6f, 6d, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) INFO  J-Link: Firmware version: J-Link ARM-OB STM32 compiled Aug 22 2012 19:52:04
└─ probe_rs::probe::jlink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/mod.rs:490
(HOST) TRACE write 1 bytes: [f0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 4 bytes: [70, 11, 1, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) INFO  J-Link: Hardware version: J-Link 7.0.0
└─ probe_rs::probe::jlink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/mod.rs:492
(HOST) TRACE write 1 bytes: [7]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 8 bytes: [e4, c, 0, 0, 1, 0, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) INFO  J-Link: Target voltage: 3.30 V
└─ probe_rs::probe::jlink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/mod.rs:504
(HOST) DEBUG Attached succesfully
└─ probe_rs::probe::jlink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/mod.rs:544
(HOST) TRACE write 18 bytes: [cf, 0, 33, 0, ff, ff, ff, ff, ff, ff, 7, ff, ff, ff, ff, ff, ff, 7]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 8 bytes: [ff, ff, ff, ff, ff, ff, 7, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) TRACE write 8 bytes: [cf, 0, 10, 0, ff, ff, 9e, e7]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 3 bytes: [9e, e7, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) TRACE write 18 bytes: [cf, 0, 33, 0, ff, ff, ff, ff, ff, ff, 7, ff, ff, ff, ff, ff, ff, 7]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 8 bytes: [ff, ff, ff, ff, ff, ff, 7, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) TRACE write 6 bytes: [cf, 0, 3, 0, 7, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 2 bytes: [0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG Performing 1 transfers (0 additional transfers)
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:488
(HOST) TRACE write 18 bytes: [cf, 0, 38, 0, ff, 3, 0, 0, 0, 0, ff, 94, 2, 0, 0, 0, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 8 bytes: [94, fe, ff, ff, ff, ff, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG Transfer result 0: Err(NoAcknowledge)
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:340
(HOST) DEBUG DAP NACK
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:1025
(HOST) DEBUG Performing line reset!
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:882
(HOST) TRACE write 18 bytes: [cf, 0, 32, 0, ff, ff, ff, ff, ff, ff, 3, ff, ff, ff, ff, ff, ff, 3]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 8 bytes: [ff, ff, ff, ff, ff, ff, 3, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG Performing 1 transfers (0 additional transfers)
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:488
(HOST) TRACE write 18 bytes: [cf, 0, 38, 0, ff, 3, 0, 0, 0, 0, ff, 94, 2, 0, 0, 0, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 8 bytes: [94, fe, ff, ff, ff, ff, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG Transfer result 0: Err(NoAcknowledge)
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:340
(HOST) DEBUG Error reading DPIDR register after line reset: NoAcknowledge
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:910
(HOST) TRACE write 18 bytes: [cf, 0, 32, 0, ff, ff, ff, ff, ff, ff, 3, ff, ff, ff, ff, ff, ff, 3]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 8 bytes: [ff, ff, ff, ff, ff, ff, 3, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG Performing 1 transfers (0 additional transfers)
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:488
(HOST) TRACE write 18 bytes: [cf, 0, 38, 0, ff, 3, 0, 0, 0, 0, ff, 94, 2, 0, 0, 0, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 8 bytes: [94, fe, ff, ff, ff, ff, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG Transfer result 0: Err(NoAcknowledge)
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:340
(HOST) DEBUG Error reading DPIDR register after line reset: NoAcknowledge
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:910
(HOST) DEBUG Selecting DP Default
└─ probe_rs::architecture::arm::communication_interface @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/architecture/arm/communication_interface.rs:434
(HOST) DEBUG Writing DP register ABORT, value=0x0000001e
└─ probe_rs::architecture::arm::dp @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/architecture/arm/dp/mod.rs:62
(HOST) TRACE Adding 2 idle cycles after transfer!
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:461
(HOST) DEBUG Performing 1 transfers (0 additional transfers)
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:488
(HOST) TRACE write 20 bytes: [cf, 0, 3a, 0, ff, 83, ff, ff, ff, ff, ff, 3, 4, 2, f, 0, 0, 0, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 9 bytes: [4, 7e, f, 0, 0, 0, 0, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG Transfer result 0: Err(NoAcknowledge)
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:340
(HOST) DEBUG DAP NACK
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:1208
(HOST) DEBUG Performing line reset!
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:882
(HOST) TRACE write 18 bytes: [cf, 0, 32, 0, ff, ff, ff, ff, ff, ff, 3, ff, ff, ff, ff, ff, ff, 3]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 8 bytes: [ff, ff, ff, ff, ff, ff, 3, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG Performing 1 transfers (0 additional transfers)
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:488
(HOST) TRACE write 18 bytes: [cf, 0, 38, 0, ff, 3, 0, 0, 0, 0, ff, 94, 2, 0, 0, 0, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 8 bytes: [94, fe, ff, ff, ff, ff, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG Transfer result 0: Err(NoAcknowledge)
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:340
(HOST) DEBUG Error reading DPIDR register after line reset: NoAcknowledge
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:910
(HOST) TRACE write 18 bytes: [cf, 0, 32, 0, ff, ff, ff, ff, ff, ff, 3, ff, ff, ff, ff, ff, ff, 3]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 8 bytes: [ff, ff, ff, ff, ff, ff, 3, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG Performing 1 transfers (0 additional transfers)
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:488
(HOST) TRACE write 18 bytes: [cf, 0, 38, 0, ff, 3, 0, 0, 0, 0, ff, 94, 2, 0, 0, 0, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:521
(HOST) TRACE read 8 bytes: [94, fe, ff, ff, ff, ff, 0, 0]
└─ jaylink @ /.cargo/registry/src/github.com-1ecc6299db9ec823/jaylink-0.3.0/src/lib.rs:551
(HOST) DEBUG Transfer result 0: Err(NoAcknowledge)
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:340
(HOST) DEBUG Error reading DPIDR register after line reset: NoAcknowledge
└─ probe_rs::probe::jlink::arm @ /.cargo/registry/src/github.com-1ecc6299db9ec823/probe-rs-0.13.0/src/probe/jlink/arm.rs:910
Error: Failed to get information for AP ApAddress { dp: Default, ap: 0 }

Desktop (please complete the following information):

  • macOS Ventura 13.0.1

Additional context Here is the output of JFlash

Connecting ...
 - Connecting via USB to probe/ programmer device 0
 - Probe/ Programmer firmware: J-Link ARM-OB STM32 compiled Aug 22 2012 19:52:04
 - Probe/ Programmer S/N: 20090929
 - Device "NRF52840_XXAA" selected.
 - Target interface speed: 4000 kHz (Fixed)
 - VTarget = 3.300V
 - InitTarget() start
 - InitTarget() end
 - Found SW-DP with ID 0x2BA01477
 - DPv0 detected
 - CoreSight SoC-400 or earlier
 - Scanning AP map to find all available APs
 - AP[2]: Stopped AP scan as end of AP map has been reached
 - AP[0]: AHB-AP (IDR: 0x24770011)
 - AP[1]: JTAG-AP (IDR: 0x02880000)
 - Iterating through AP map to find AHB-AP to use
 - AP[0]: Core found
 - AP[0]: AHB-AP ROM base: 0xE00FF000
 - CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
 - Found Cortex-M4 r0p1, Little endian.
 - FPUnit: 6 code (BP) slots and 2 literal slots
 - CoreSight components:
 - ROMTbl[0] @ E00FF000
 - [0][0]: E000E000 CID B105E00D PID 000BB00C SCS-M7
 - [0][1]: E0001000 CID B105E00D PID 003BB002 DWT
 - [0][2]: E0002000 CID B105E00D PID 002BB003 FPB
 - [0][3]: E0000000 CID B105E00D PID 003BB001 ITM
 - [0][4]: E0040000 CID B105900D PID 000BB9A1 TPIU
 - [0][5]: E0041000 CID B105900D PID 000BB925 ETM
 - Executing init sequence ...
  - Initialized successfully
 - Target interface speed: 4000 kHz (Fixed)
 - Found 1 JTAG device. Core ID: 0x2BA01477 (None)
 - Connected successfully

rracariu avatar Dec 13 '22 01:12 rracariu

You can use https://crates.io/crates/nrf-recover or the nrfutil to unlock the chip and then it should work just fine.

Yatekii avatar Dec 13 '22 11:12 Yatekii

You can use https://crates.io/crates/nrf-recover or the nrfutil to unlock the chip and then it should work just fine.

I tried that before with nrfjprog --eraseall and still get the same error. BTW nrf-recorver times out also.

rracariu avatar Dec 13 '22 16:12 rracariu

Is the reset line connected for --connect-under-reset?

Yatekii avatar Dec 13 '22 16:12 Yatekii

Also, is this on master? I think we have an issue with this fixed on master.

Yatekii avatar Dec 13 '22 17:12 Yatekii

Reset line is connected.

I'm using probe-rs-0.13.0.

BTW - the bug report has the probe-rs logs if by any chance you missed that, just expand Debug output section at the top.

rracariu avatar Dec 13 '22 17:12 rracariu

Tried with master: cargo install --git https://github.com/probe-rs/probe-rs --force --branch master probe-rs-cli

And got the same error.

rracariu avatar Dec 13 '22 17:12 rracariu

Yeah, the log is unfortunately not very detailed. We are working on better logs. It has a ton of information, but it's not too useful. Normally the error you are seeing means the chip is locked.

Yatekii avatar Dec 13 '22 17:12 Yatekii

@rracariu What kind of J-Link are you using?

It seems that probe-rs is unable to connect at all, which usually indicates bad wiring. But if the J-Link software works, that means the connection is good... A bit mysterious.

Tiwalun avatar Dec 13 '22 18:12 Tiwalun

I've run into this exact bug a while back. Chances are you have the newer chip revision that according to @Dirbaio automatically re-enables the write protection. This is the fix he provided me with:

unsafe {
    let nvmc = &*pac::NVMC::ptr();

    // UICR.APPROTECT = HwDisabled
    if *(0x10001208 as *mut u32) != 0x0000_005a {
        nvmc.config.write(|w| w.wen().wen());
        while nvmc.ready.read().ready().is_busy() {}
        core::ptr::write_volatile(0x10001208 as *mut u32, 0x0000_005a);
        while nvmc.ready.read().ready().is_busy() {}
        nvmc.config.reset();
        while nvmc.ready.read().ready().is_busy() {}
        cortex_m::peripheral::SCB::sys_reset();
    }

    // APPROTECT.DISABLE = SwDisabled
    (0x4000_0558 as *mut u32).write_volatile(0x0000_005a);
}

You'll need to stick it at the top of your main function in YOUR app. That at least made it work reliably for me, your milage may vary :)

Here's a link to the matrix chat where @Dirbaio helped me solve the issue: https://matrix.to/#/!vhKMWjizPZBgKeknOo:matrix.org/$WwWkVyOhQUxjWSClmZFXeZLMSYLm79y2HW1qkI6Ovmc?via=matrix.org&via=chat.berline.rs&via=grusbv.com

Zagitta avatar Dec 17 '22 14:12 Zagitta

Also, do not use --connect-under-reset for nrf chips. Unlike stm32, the reset pin also resets the SWD circuitry, so it doesn't respond at all while in reset.

Dirbaio avatar Dec 18 '22 15:12 Dirbaio

Is this really true @Dirbaio? I thought a discussion on Matrix proved this incorrect? Because I was under that belief as well :)

Yatekii avatar Dec 18 '22 16:12 Yatekii

Please note that as best as I can tell, the APPROTECT peripheral doesn't exist on boards older than revision 3. So if you are following the comment, you should be sure to check the revision of your board first, and only attempt this process if it matches that revision.

When I tried it without gating the code on the revision and ran it on my revision 2 board, it caused a crash (probably referencing invalid register)

TheButlah avatar Jan 07 '23 08:01 TheButlah

this helped me, but i'm not sure if it will work with j-link too:

okay, so adding --allow-erase-all to the runner command fixes it, closing the issue, sorry about the noise

.cargo/config.toml:

...
runner = "probe-rs run --chip nRF52840_xxAA --allow-erase-all"
...

https://github.com/probe-rs/probe-rs/issues/2287#issuecomment-1991795161

DeepSOIC avatar Mar 14 '24 00:03 DeepSOIC