Can you try revert
http://openocd.zylin.com/gitweb?p=openocd.git;a=commitdiff;h=568e84236bf3b58f4eef73cbed70f3544b44df1f
or set STLINK_TRACE_SIZE to 1024 or 2048 ?
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** [tickets:#174] stlink-v2-1 with firmware V2J30M19 timeouts in bulk transfer
reads of trace endpoint**
**Status:** new
**Milestone:** 0.9.0
**Created:** Thu Jan 25, 2018 08:39 PM UTC by Cody Schafer
**Last Updated:** Thu Jan 25, 2018 08:51 PM UTC
**Owner:** nobody
Immediately after updating the firmware on a stlink-v2-1 (on a nucleo-f429zi
board) to V2J30M19 (from STSW-LINK007 version 2.30.19 ), I've started to see
libusb bulk transfer timeouts when openocd tried to read the trace endpoint.
"bulk trace read failed" is printed. I've tried increasing the timeout 10x, but
it still times out.
This is on current master (64f1f7b1c179dcce4e008bef6bf9515c47ae4100) with a few
changes to print details about the libusb_bulk_transfer failures (return values
from those functions are typically ignored.
I unfortunately didn't note the previous (non-erroring for this case) firmware
version.
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