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) 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
