Logging to file?

Question

I need to get quite a lot of logs and quite fast too. How do I do I get the logs into a file? 
 I tried with Segger RTT logger, but it tends to give up quite quickly. I heard rumors that the RTT logger and debug terminal in the Segger Embedded Studio don't like each other, and that tends to cause problems. How do I get to use only RTT logger and turn debug terminal logging off? 
 Or are there other means? There are no serial ports left to use.

turboscrew · Accepted Answer

The J-link RTT Viewer seems to work a bit better, but loses a lot of log messages. 
 That can be seen if the log file is compared to debug terminal window. The debug terminal doesn't seem to lose log messages.

tesc · Answer

Hi, 
 Right. I understand. I did not find a way for J-Link RTT Logger to connect to an existing session, but J-Link RTT Viewer can. The procedure to get the full log from a debug session is then: 
 
 In SES, start a debug session (but do not start execution yet). 
 In J-Link RTT Viewer, choose "Existing Session" in the configuration dialog for connecting to a target. 
 In J-Link RTT Viewer, choose "Start Terminal Logging" from the "Logging" menu and choose your file name. 
 In SES, start the execution (and do whatever debugging you would like.) 
 When you are done, either "Stop Terminal Logging" in J-Link RTT Viewer, or end the debug session in SES. In either case the logging should stop. 
 
 I did some testing with an nRF52832 DK, and I got way more than 16 kB/s from a test application logging some text and an increasing sequence number from an infinite loop. (It was consumed and logged at the speed sent from the DK.) I did not run it for long, though. 
 Regards, Terje

Logging to file?

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