lpc55s69_mculink: USB descriptors appear to get corrupted

[cstrahan]

USB descriptors appear to get corrupted after several accesses.

I used 0257_lpc55s69_mculink_0x10000.hex (from this release: https://github.com/ARMmbed/DAPLink/releases/tag/v0257) to program my MCU-LINK with DAPLink.

When I initially plug in my MCU-LINK, the descriptors usual look normal:

$ lsusb -vd '0d28:0204'

Bus 003 Device 038: ID 0d28:0204 NXP ARM mbed
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.10
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x0d28 NXP
  idProduct          0x0204 ARM mbed
  bcdDevice           10.00
  iManufacturer           1 Arm
  iProduct                2 DAPLink CMSIS-DAP
  iSerial                 3 0000008084c40d1c5ed12d31085d16b94673bfa64c504355
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x008b
    bNumInterfaces          5
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              500mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass          2 Communications
      bFunctionSubClass       2 Abstract (modem)
      bFunctionProtocol       1 AT-commands (v.25ter)
      iFunction               4 mbed Serial Port
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         2 Communications
      bInterfaceSubClass      2 Abstract (modem)
      bInterfaceProtocol      1 AT-commands (v.25ter)
      iInterface              4 mbed Serial Port
      CDC Header:
        bcdCDC               1.10
      CDC Call Management:
        bmCapabilities       0x03
          call management
          use DataInterface
        bDataInterface          2
      CDC ACM:
        bmCapabilities       0x06
          sends break
          line coding and serial state
      CDC Union:
        bMasterInterface        0
        bSlaveInterface         1 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               2
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              5 mbed Serial Port
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x04  EP 4 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x84  EP 4 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              6 CMSIS-DAP v1
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.00
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      33
         Report Descriptors: 
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      3 
      bInterfaceProtocol      0 
      iInterface              7 WebUSB: CMSIS-DAP
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        4
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              9 CMSIS-DAP v2
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x05  EP 5 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x85  EP 5 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
Binary Object Store Descriptor:
  bLength                 5
  bDescriptorType        15
  wTotalLength       0x0039
  bNumDeviceCaps          2
  Platform Device Capability:
    bLength                24
    bDescriptorType        16
    bDevCapabilityType      5
    bReserved               0
    PlatformCapabilityUUID    {3408b638-09a9-47a0-8bfd-a0768815b665}
      WebUSB:
        bcdVersion    1.00
        bVendorCode     33
        iLandingPage     0 
  Platform Device Capability:
    bLength                28
    bDescriptorType        16
    bDevCapabilityType      5
    bReserved               0
    PlatformCapabilityUUID    {d8dd60df-4589-4cc7-9cd2-659d9e648a9f}
    CapabilityData[0]    0x00
    CapabilityData[1]    0x00
    CapabilityData[2]    0x03
    CapabilityData[3]    0x06
    CapabilityData[4]    0x4a
    CapabilityData[5]    0x01
    CapabilityData[6]    0x20
    CapabilityData[7]    0x00
Device Status:     0x0000
  (Bus Powered)

However, if I run the same command (anywhere between 1 to 3 times) things get screwy:

Bus 003 Device 038: ID 0d28:0204 NXP ARM mbed
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.10
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x0d28 NXP
  idProduct          0x0204 ARM mbed
  bcdDevice           10.00
  iManufacturer           1 Arm
  iProduct                2 DAPLink CMSIS-DAP
  iSerial                 3 0000008084c40d1c5ed12d31085d16b94673bfa64c504355
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x008b
    bNumInterfaces          5
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              500mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass          2 Communications
      bFunctionSubClass       2 Abstract (modem)
      bFunctionProtocol       1 AT-commands (v.25ter)
      iFunction               4 (error)
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         2 Communications
      bInterfaceSubClass      2 Abstract (modem)
      bInterfaceProtocol      1 AT-commands (v.25ter)
      iInterface              4 (error)
      CDC Header:
        bcdCDC               1.10
      CDC Call Management:
        bmCapabilities       0x03
          call management
          use DataInterface
        bDataInterface          2
      CDC ACM:
        bmCapabilities       0x06
          sends break
          line coding and serial state
      CDC Union:
        bMasterInterface        0
        bSlaveInterface         1 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               2
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              5 (error)
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x04  EP 4 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x84  EP 4 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              6 (error)
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.00
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      33
         Report Descriptors: 
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      3 
      bInterfaceProtocol      0 
      iInterface              7 (error)
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        4
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              9 (error)
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x05  EP 5 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x85  EP 5 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
cannot read device status, Resource temporarily unavailable (11)

I can reproduce this with two different computers, and two different MCU-LINKs.

I initially discovered this while trying to figure out why pyocd would initially discover the probe, and then subsequently fail: pyocd/pyOCD#1497

[jsiverskog]

also experiencing this, following.

[jsiverskog]

attaching a totalphase beagle dump, it contains a full flash session, and then pyocd list which fails, and lsusb -v that fails.

my guess is that the interface is not properly closed after flashing, causing this, but i'm not entirely sure.

failing lsusb starts at index 814513.

usb.csv.zip
usb.tdc.zip

[mathias-arm]

Could you try disabling high-speed by setting USBD_HS_ENABLE to 0 in source/hic_hal/nxp/lpc55xx/usb_config.c?

I have been looking for places where USBD_ConfigDescriptor and/or USBD_ConfigDescriptor_HS might get corrupted and two are related to high-speed (USB_CONFIGURATION_DESCRIPTOR_TYPE and USB_OTHER_SPEED_CONFIG_DESCRIPTOR_TYPE).

[jsiverskog]

@mathias-arm : it fails to enumerate with that change, i've tried on different computers, dmesg:

[81915.843499] usb 3-4.3.2: unable to read config index 0 descriptor/start: -32
[81915.843511] usb 3-4.3.2: chopping to 0 config(s)
[81915.843515] usb 3-4.3.2: can't read configurations, error -32
[81915.926028] usb 3-4.3.2: new high-speed USB device number 88 using xhci_hcd
[81916.027072] usb 3-4.3.2: unable to read config index 0 descriptor/start: -32
[81916.027077] usb 3-4.3.2: chopping to 0 config(s)
[81916.027078] usb 3-4.3.2: can't read configurations, error -32
[81916.027573] usb 3-4.3-port2: attempt power cycle
[81917.541940] usb 3-4.3.2: new high-speed USB device number 90 using xhci_hcd
[81917.646794] usb 3-4.3.2: unable to read config index 0 descriptor/start: -32
[81917.646809] usb 3-4.3.2: chopping to 0 config(s)
[81917.646813] usb 3-4.3.2: can't read configurations, error -32
[81917.726003] usb 3-4.3.2: new high-speed USB device number 91 using xhci_hcd
[81917.831203] usb 3-4.3.2: unable to read config index 0 descriptor/start: -32
[81917.831226] usb 3-4.3.2: chopping to 0 config(s)
[81917.831230] usb 3-4.3.2: can't read configurations, error -32

tried with different hubs, and directly in the computer.

[elfmimi]

I'm now preparing to validate my testimony below.
It goes, lpc55s69_bl/_if work fine with MCU-Link board. not lpc55s69_mculink_bl/_if .
At least that was the case when I tried it last time.

[mathias-arm]

@cstrahan / @jsiverskog can you check or confirm @elfmimi's input?

[jsiverskog]

@mathias-arm : i won't be able to test until next week.

[cstrahan]

I'm trying @elfmimi's suggestion.

Used lpc55s69_bl_crc.hex as the bootloader (instead of lpc55s69_mculink_bl_crc.hex) and 0257_lpc55s69__0x10000.bin (instead of 0257_lpc55s69_mculink_0x10000.bin).

Initial tests:

Before flashing:

$ probe-rs-cli list
The following devices were found:
[0]: DAPLink CMSIS-DAP (VID: 0d28, PID: 0204, Serial: 000000808bb7918e5d0379760db6608a0f9f6b9e4c504355, CmsisDap)

After:

$ probe-rs-cli list
The following devices were found:
[0]: LPC55xx DAPLink CMSIS-DAP (VID: 0d28, PID: 0204, Serial: 000000808bb7918e5d0379760db6608a0f9f6b9e4c504355, CmsisDap)

Will report what I find.

[cstrahan]

I'm finding that the USB descriptors still get messed up:

$ lsusb -vd '0d28:0204'

Bus 003 Device 082: ID 0d28:0204 NXP ARM mbed
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.10
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x0d28 NXP
  idProduct          0x0204 ARM mbed
  bcdDevice           10.00
  iManufacturer           1 Arm
  iProduct                2 LPC55xx DAPLink CMSIS-DAP
  iSerial                 3 000000808bb7918e5d0379760db6608a0f9f6b9e4c504355
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x008b
    bNumInterfaces          5
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              500mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass          2 Communications
      bFunctionSubClass       2 Abstract (modem)
      bFunctionProtocol       1 AT-commands (v.25ter)
      iFunction               4 (error)
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         2 Communications
      bInterfaceSubClass      2 Abstract (modem)
      bInterfaceProtocol      1 AT-commands (v.25ter)
      iInterface              4 (error)
      CDC Header:
        bcdCDC               1.10
      CDC Call Management:
        bmCapabilities       0x03
          call management
          use DataInterface
        bDataInterface          2
      CDC ACM:
        bmCapabilities       0x06
          sends break
          line coding and serial state
      CDC Union:
        bMasterInterface        0
        bSlaveInterface         1 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               2
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              5 (error)
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x04  EP 4 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x84  EP 4 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              6 (error)
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.00
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      33
         Report Descriptors: 
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      3 
      bInterfaceProtocol      0 
      iInterface              7 (error)
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        4
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              9 (error)
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x05  EP 5 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x85  EP 5 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
cannot read device status, Resource temporarily unavailable (11)

[cstrahan]

I'm not entirely wedded to the MCU-LINK -- I only purchased it because, from rummaging around through the respective HIC and related header files, I found that it:

• Supports High Speed USB
• Supports JTAG
• Its $15 price is cheap enough for me to buy a couple

Though I don't know how much of a performance difference the High Speed makes in practice.

Until this issue is resolved, could anyone here make a recommendation for a similarly spec'd device with solid DAPLink support ?

In the interim, I'm using the latest proprietary MCU-LINK firmware, but I love the idea of using an open source solution, and I'm interested in seeing if DAPLink's support for flashing via MSC could be leveraged to achieve faster flashing (and thus quicker iteration during my software development). Faster flashing is my No. 1 desire right now :).

[cstrahan]

I'll also note that the firmware otherwise (at least seems to) run fine. After the descriptors go wonky, pyocd can no longer detect the probe (as the python usb lib fails-fast when trying to determine the product string if it can't ascertain the LANGIDs that the device supports), the usb lib used by probe-rs appears to default to assuming 0x0409 (English) is supported and thus determines the product string successfully, allowing it to find the probe.

There are cases where I need to use pyocd, though, and knowing that the device is already misbehaving in one known way makes me uneasy about depending on it during dev.