Usage with probe-rs is not possible

[scotty00X]

v1.18 rsp. v1.19-pre (other version not tested) seems not work with the latest probe-rs https://github.com/probe-rs/probe-rs.

The error cause mentioned is mostly:

Error: Failed to open the debug probe.

Caused by:
    0: An error specific to a probe type occurred
    1: Error handling CMSIS-DAP command Info
    2: Unexpected answer to command

or

Error: Connecting to the chip was unsuccessful.

Caused by:
    0: An error with the usage of the probe occurred
    1: An error specific to a probe type occurred
    2: Error handling CMSIS-DAP command Connect
    3: Command ID in response (:#02x) does not match sent command ID

Does anybody observes the same behavior? Should yapicoprobe work with probe-rs?

To Reproduce Steps to reproduce the issue:

RUST_LOG=probe_rs=trace probe-rs reset --chip RP2040

[rgrr]

Hello Henrik

interesting. I have never tested yapicoprobe with probe-rs because I'm currently not a rust guy, so I have no environment for testing. May change over time.

Nevertheless: what are the actual requirements for probe-rs to connect to the target? Which protocol is used?

[scotty00X]

Hi Hardy, thx for your reply.

It is mentioned as of version 0.10.0 this library can

connect to a DAPLink, STLink or JLink ...

This is done via cmsisdap protocol. I'm definitely not an expert on this topic.

At least the probe type, etc. is recognized as a CMSIS-DAP probe:

RUST_LOG=probe_rs=trace probe-rs list
 INFO probe_rs: Writing log to "/home/hkuhn/.local/share/probe-rs/1699217905564.log"
DEBUG list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools: Searching for CMSIS-DAP probes using libusb
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools:   Interface 0: YAPicoprobe CMSIS-DAP v2
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools:   Interface 1: YAPicoprobe CMSIS-DAP v1
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools:     HID interface found
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools: Could not read string for interface 3, skipping
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools: Could not read string for interface 6, skipping
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools: Could not read string for interface 6, skipping
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools: Could not read string for interface 8, skipping
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools: YAPicoprobe CMSIS-DAP: CMSIS-DAP device with 9 interfaces
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools: Will use interface number 1 for CMSIS-DAPv1
DEBUG list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools: Found 1 CMSIS-DAP probes using libusb, searching HID
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools: CMSIS-DAP device with USB path: "/dev/hidraw4"
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools:                 product_string: "YAPicoprobe CMSIS-DAP"
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools:                      interface: 1
TRACE list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools: Ignoring duplicate YAPicoprobe CMSIS-DAP (VID: 2e8a, PID: 000c, Serial: E6612483CB465D2A, CmsisDap)
DEBUG list_all:list_cmsisdap_devices: probe_rs::probe::cmsisdap::tools: Found 1 CMSIS-DAP probes total
The following debug probes were found:
[0]: YAPicoprobe CMSIS-DAP (VID: 2e8a, PID: 000c, Serial: E6612483CB465D2A, CmsisDap)

[rgrr]

Ok, this seems to be reasonable.

What does it output if you are trying to connect to the target? Do you know of probes working with the RP2040?

[scotty00X]

Have a look here as an example what happens if I try to reset the target.

[rgrr]

I will have a deeper look into this, but currently I'm short in time. As I written in probe-rs, would be nice to have a more detailed log file.

BTW: is it possible to connect to other targets? E.g. nRF52xxx?

[plaes]

I will have a deeper look into this, but currently I'm short in time. As I written in probe-rs, would be nice to have a more detailed log file.

BTW: is it possible to connect to other targets? E.g. nRF52xxx?

No, same issue with nrf52840. I added some debug logs to relevant probe-rs issue (https://github.com/probe-rs/probe-rs/issues/1849) with logs for both yapicoprobe and picoprobe as well.

[rgrr]

...

No, same issue with nrf52840. I added some debug logs to relevant probe-rs issue (probe-rs/probe-rs#1849) with logs for both yapicoprobe and picoprobe as well.

Thanks for the logs. I will try to have a look at it during this week

[rgrr]

Could you please give the latest release (1.20) a chance. You have to change the configuration to rtt=0 for probe-rs to work.

[rgrr]

probe-rs 0.23.0 solves this, see https://github.com/probe-rs/probe-rs/issues/2139

[scotty00X]

The mentioned CMSIS-DAPv2 timeout fix in probe-rs establishes the interoperability with yapicoprobe. thank you very much.