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** [tickets:#391] RTT Only Prints To Console When it is Stopped and Started
Again**
**Status:** new
**Milestone:** 0.10.0
**Created:** Fri Apr 14, 2023 06:58 PM UTC by Ben Roytburd
**Last Updated:** Fri Apr 14, 2023 06:58 PM UTC
**Owner:** nobody
I am debugging an AM6548 SoC, specifically the Cortex-R5 core of the SoC, I am
using the development board's (AM65x_GP_EVM) integrated XDS110 debugger. I have
been able to integrate SEGGER print statements into my code as well, and
configuring RTT on OpenOCD I am able to see the _SEGGER_RTT symbol and find
the control block.
The issue is that the RTT console that is created by OpenOCD does not print out
data in real time, I have to `monitor rtt stop` then `monitor rtt start` in the
debug console, and then all the print data that was in the RTT control block is
printed out. This behavior is pretty consistent. I use just a basic telnet
connection to monitor the RTT terminal.
Here are some details about my setup
OS: WSL: Ubuntu 20.04 LTS
GDB Version: gdb-multiarch (GNU gdb (Ubuntu 9.2-0ubuntu1~20.04.1) 9.2)
OpenOCD version: Open On-Chip Debugger 0.12.0-rc1+dev-00924-gae937791d
(2022-09-29-09:21)
The commands I am using to initialize the RTT terminal are as follows:
~~~
(gdb) monitor rtt setup 0xa040f974 10 {SEGGER RTT}
(gdb) monitor rtt server start 60000 0
Listening on port 60000 for rtt connections
(gdb) monitor rtt start
rtt: Searching for control block 'SEGGER RTT'
rtt: Control block found at 0xa040f974
~~~
And then to connect to the RTT terminal I use `telnet localhost 60001`. And my
print statements are not printed as I run the code, only when I `monitor rtt
stop` and `monitor rtt start` from the gdb terminal do I see all the buffered
print statements dumped.
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