Hi Luiz, On Thu, Feb 22, 2018 at 12:14 PM, Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx> wrote: > Hi Andrzej, > > On Thu, Feb 22, 2018 at 11:20 AM, Andrzej Kaczmarek > <andrzej.kaczmarek@xxxxxxxxxxx> wrote: >> Hi, >> >> Here's patch series which adds support for receiving monitor data stream over >> Segger RTT channel. This allows to stream data from embedded device without >> need to spare a UART for monitor data and is also much faster. It is now >> supported by Apache Mynewt (NimBLE stack), but I believe it can be also added >> to other RTOS-es like Zephyr Project. >> >> RTT is handled natively by talking to J-Link via libjlinkarm.so. Since there >> is no public documentation for this library, interface was done mostly by >> trial and error so it may be lacking something - I tried it with few Cortex-M >> devices and it works smoothly. >> >> Both J-Link and RTT needs few configuration parameters to work so I combined >> them into two command line options: >> -J --jlink <device>,<interface>,<speed>,<serialno> >> -R --rtt <address>,<area>,<buffer> >> >> <device> - one of devices supported by J-Link (no default) >> <interface> - only 'swd' supported for now (default: swd) >> <speed> - interface speed (default: 1000) >> <serialno> - emu serial number or 0 if not used (detault: 0) >> <address> - RTT control block address (default: 0) >> <area> - RTT control block search area length (default: 0) >> <buffer> - RTT buffer name with monitor data stream (default: monitor) > > Given that the device has no default I suppose it is not able to > auto-detect it, wouldn't it be possible to add support for that? At > least the tools for flashing, etc, do seems to be able to detect when > using a j-tag. I'm not sure if it is any different over JTAG, but I don't think J-Link can autodetect device over SWD (which I only implemented now) - you need to specify at least core in order to be able to connect to target. >> >> Andrzej Kaczmarek (3): >> monitor: Extract TTY data processing to separate function >> monitor: Add interface for J-Link library >> monitor: Add support for reading over J-Link RTT >> >> Makefile.tools | 3 +- >> monitor/control.c | 87 +++++++++++++---- >> monitor/control.h | 1 + >> monitor/jlink.c | 282 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ >> monitor/jlink.h | 27 ++++++ >> monitor/main.c | 30 +++++- >> 6 files changed, 409 insertions(+), 21 deletions(-) >> create mode 100644 monitor/jlink.c >> create mode 100644 monitor/jlink.h >> >> -- >> 2.16.2 >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > -- > Luiz Augusto von Dentz Best regards, Andrzej -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
