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. > > 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 -- 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
