I am trying to connect GDB in WSL to an Atmel SAMV71 Xplained Ultra board. I am getting stuck trying to get OpenOCD to connect to the board.
I am using the following OpenOCD config file:
atmel_samv71_xplained_ultra_edbg.cfg
source [find interface/cmsis-dap.cfg]source [find board/atmel_samv71_xplained_ultra.cfg]source [find target/atsamv.cfg]Using OpenOCD in Windows, I can connect without an issue:
...Debug: 62 214 target.c:1657 handle_target_init_command(): Initializing targets...Debug: 63 216 semihosting_common.c:109 semihosting_common_init():...Debug: 70 333 cmsis_dap_usb_bulk.c:151 cmsis_dap_usb_open(): found product string of 0x03eb:0x2111 'EDBG CMSIS-DAP'Debug: 71 337 cmsis_dap_usb_bulk.c:171 cmsis_dap_usb_open(): enumerating interfaces of 0x03eb:0x2111Debug: 72 340 cmsis_dap_usb_bulk.c:218 cmsis_dap_usb_open(): found interface 0 string 'EDBG CMSIS-DAP'Debug: 73 343 cmsis_dap_usb_bulk.c:238 cmsis_dap_usb_open(): skipping interface 0, endpoint[0] is not bulk outDebug: 74 347 cmsis_dap_usb_bulk.c:231 cmsis_dap_usb_open(): skipping interface 1, has only 1 endpointsDebug: 75 350 cmsis_dap_usb_bulk.c:238 cmsis_dap_usb_open(): skipping interface 2, endpoint[0] is not bulk outDebug: 76 353 cmsis_dap_usb_bulk.c:238 cmsis_dap_usb_open(): skipping interface 3, endpoint[0] is not bulk out...Info : 84 483 cmsis_dap.c:1027 cmsis_dap_get_caps_info(): CMSIS-DAP: SWD supportedInfo : 85 486 cmsis_dap.c:1004 cmsis_dap_get_version_info(): CMSIS-DAP: FW Version = 03.25.01B6Info : 86 489 cmsis_dap.c:989 cmsis_dap_get_serial_info(): CMSIS-DAP: Serial# = ATML2407161800006103Info : 87 492 cmsis_dap.c:1156 cmsis_dap_swd_open(): CMSIS-DAP: Interface Initialised (SWD)Debug: 88 496 cmsis_dap.c:1238 cmsis_dap_init(): CMSIS-DAP: Packet Count = 4Debug: 89 498 cmsis_dap.c:1241 cmsis_dap_init(): Allocating FIFO for 3 pending packetsInfo : 90 501 cmsis_dap.c:1066 cmsis_dap_get_status(): SWCLK/TCK = 1 SWDIO/TMS = 1 TDI = 1 TDO = 1 nTRST = 0 nRESET = 1Info : 91 506 cmsis_dap.c:1292 cmsis_dap_init(): CMSIS-DAP: Interface ready...The project I'm working on requires many Linux tools to build easily so I am attempting to connect through WSL. I have followed the instructions to use USBIPD.
I'm using Windows 11 so I didn't think I needed a custom kernel:
$ uname -aLinux DESKTOP-U0P8IUP 5.15.133.1-microsoft-standard-WSL2 #1 SMP Thu Oct 5 21:02:42 UTC 2023 x86_64 x86_64 x86_64 GNU/LinuxHere are my udev rules that I have loaded (checked and tested with udevadm) and I have ensured that I am a member of plugdev:
60-openocd.rules
ACTION!="add|change", GOTO="openocd_rules_end"SUBSYSTEM=="gpio", MODE="0660", GROUP="plugdev", TAG+="uaccess"SUBSYSTEM!="usb|tty|hidraw", GOTO="openocd_rules_end"...# Atmel SAMV71 Xplained UltraATTRS{idVendor}=="03eb", ATTRS{idProduct}=="2111", MODE="660", GROUP="plugdev", TAG+="uaccess"...# CMSIS-DAP compatible adaptersATTRS{product}=="*CMSIS-DAP*", MODE="660", GROUP="plugdev", TAG+="uaccess"...And the device attaches okay:
$ lsusb -v...Bus 001 Device 003: ID 03eb:2111 Atmel Corp. Xplained Pro board debugger and programmerDevice Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 239 Miscellaneous Device bDeviceSubClass 2 bDeviceProtocol 1 Interface Association bMaxPacketSize0 64 idVendor 0x03eb Atmel Corp. idProduct 0x2111 Xplained Pro board debugger and programmer bcdDevice 1.01 iManufacturer 1 Atmel Corp. iProduct 2 EDBG CMSIS-DAP iSerial 3 ATML2407161800006103 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0082 bNumInterfaces 4 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 4 EDBG CMSIS-DAP HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.11 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 35 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 1 Interface Association: bLength 8 bDescriptorType 11 bFirstInterface 1 bInterfaceCount 2 bFunctionClass 2 Communications bFunctionSubClass 2 Abstract (modem) bFunctionProtocol 1 AT-commands (v.25ter) iFunction 6 EDBG Virtual COM Port Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 2 Communications bInterfaceSubClass 2 Abstract (modem) bInterfaceProtocol 1 AT-commands (v.25ter) iInterface 0 CDC Header: bcdCDC 1.10 CDC ACM: bmCapabilities 0x06 sends break line coding and serial state CDC Union: bMasterInterface 1 bSlaveInterface 2 CDC Call Management: bmCapabilities 0x03 call management use DataInterface bDataInterface 2 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 8 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 10 CDC Data bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x05 EP 5 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 5 EDBG Data Gateway Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x87 EP 7 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 255 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x06 EP 6 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 255Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 239 Miscellaneous Device bDeviceSubClass 2 bDeviceProtocol 1 Interface Association bMaxPacketSize0 64 bNumConfigurations 1Device Status: 0x0000 (Bus Powered)...But trying to connect with OpenOCD results in the following:
...Debug: 71 5 target.c:1639 handle_target_init_command(): Initializing targets...Debug: 72 5 semihosting_common.c:99 semihosting_common_init(): ...Debug: 74 11 cmsis_dap_usb_bulk.c:156 cmsis_dap_usb_open(): found product string of 0x03eb:0x2111 'EDBG CMSIS-DAP'Debug: 75 11 cmsis_dap_usb_bulk.c:176 cmsis_dap_usb_open(): enumerating interfaces of 0x03eb:0x2111Debug: 76 12 cmsis_dap_usb_bulk.c:223 cmsis_dap_usb_open(): found interface 0 string 'EDBG CMSIS-DAP'Debug: 77 12 cmsis_dap_usb_bulk.c:243 cmsis_dap_usb_open(): skipping interface 0, endpoint[0] is not bulk outDebug: 78 12 cmsis_dap_usb_bulk.c:236 cmsis_dap_usb_open(): skipping interface 1, has only 1 endpointsDebug: 79 12 cmsis_dap_usb_bulk.c:243 cmsis_dap_usb_open(): skipping interface 2, endpoint[0] is not bulk outDebug: 80 13 cmsis_dap_usb_bulk.c:243 cmsis_dap_usb_open(): skipping interface 3, endpoint[0] is not bulk out...Error: 82 13 cmsis_dap.c:259 cmsis_dap_open(): unable to find a matching CMSIS-DAP deviceDebug: 83 13 command.c:628 run_command(): Command 'init' failed with error code -4...After finding this post, I checked to see that I was getting the same error in dmesg:
$ dmesg| grep -i hid ⏎[ 0.348324] usbcore: registered new interface driver usbhid[ 0.348507] usbhid: USB HID core driver[ 48.383257] hid-generic 0003:03EB:2111.0001: device has no listeners, quittingI compiled a custom kernel with CONFIG_USB_HIDDEV tuned on and ensured that it was running:
$ dmesg| grep -i hid[ 0.000000] Linux version 5.15.133.1-microsoft-standard-WSL2-with-HIDDEV+ (kyle@DESKTOP-U0P8IUP) (gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.38) #1 SMP Tue Dec 5 13:09:53 EST 2023[ 0.369619] usb usb1: Manufacturer: Linux 5.15.133.1-microsoft-standard-WSL2-with-HIDDEV+ vhci_hcd[ 0.372640] usb usb2: Manufacturer: Linux 5.15.133.1-microsoft-standard-WSL2-with-HIDDEV+ vhci_hcd[ 0.376862] usbcore: registered new interface driver usbhid[ 0.377012] usbhid: USB HID core driver[ 92.238687] hid-generic 0003:03EB:2111.0001: hiddev96: USB HID v1.11 Device [Atmel Corp. EDBG CMSIS-DAP] on usb-vhci_hcd.0-1/input0But I am receiving the same error from OpenOCD.
What else am I missing? There are many other configuration options related to USB HID devices in the WSL kernel. Are there others that are needed? Are there other udev rules that are needed? Has anyone else successfully connected to this board using WSL?