Is it possible for you to use git bisect? Not only on OpenOCD using the latest libusb, but also on libusb using latest OpenOCD. This will highlight when in OpenOCD and in libusb you get the issue.
Another thing you could try is to NOT define USE_LIBUSB_ASYNCIO. It is defined by default with libusb1. Just comment out the lines below in src/jtag/drivers/stlink_usb.c 62 #ifdef HAVE_LIBUSB1 63 #define USE_LIBUSB_ASYNCIO 64 #endif --- ** [tickets:#308] ST-link connect issue using latest libusb-1.0.dll** **Status:** new **Milestone:** 0.11.0 **Created:** Fri Jun 11, 2021 10:12 AM UTC by asier70 **Last Updated:** Tue Jun 22, 2021 02:20 PM UTC **Owner:** nobody For years I compile openocd and libusb-1.0 by myself from the newest sources (cross-compilation under ubuntu on Windows 10 for windows 10 x64). I noticed problem with the newest libusb-1.0.dll - I can't connect to st-link (ver. 2.1 and also 3). Log ends with: ~~~ Debug: 46 239 stlink_usb.c:3420 stlink_open(): stlink_open Debug: 47 243 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3744 serial: Debug: 48 248 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3748 serial: Debug: 49 255 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374b serial: Debug: 50 261 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374d serial: Debug: 51 269 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374e serial: Debug: 52 275 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374f serial: Debug: 53 280 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3752 serial: Debug: 54 289 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3753 serial: ~~~ and openocd is exited without any information like "open failed". Connecting to DAP-Link v2 with bulk works. This issue is for latest libusb-1.0.dll version 1.0.24.11627 (and 1.0.24.11623 as I checked). For older version 1.0.24.11608 all works fine: ~~~ Debug: 46 217 stlink_usb.c:3420 stlink_open(): stlink_open Debug: 47 221 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3744 serial: Debug: 48 226 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3748 serial: Debug: 49 234 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374b serial: Debug: 50 240 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374d serial: Debug: 51 246 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374e serial: Debug: 52 254 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374f serial: Debug: 53 260 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3752 serial: Debug: 54 269 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3753 serial: Info : 55 1722 stlink_usb.c:1318 stlink_usb_version(): STLINK V2J37M27 (API v2) VID:PID 0483:3752 Debug: 56 1729 stlink_usb.c:1543 stlink_usb_exit_mode(): MODE: 0x01 ~~~ Any suggestions? --- Sent from sourceforge.net because openocd-devel@lists.sourceforge.net is subscribed to https://sourceforge.net/p/openocd/tickets/ To unsubscribe from further messages, a project admin can change settings at https://sourceforge.net/p/openocd/admin/tickets/options. Or, if this is a mailing list, you can unsubscribe from the mailing list.
