J-Link RTT Viewer lost some logs

RE: J-Link RTT Viewer lost some logs

Jørgen Holmefjord — Thu, 23 May 2019 08:45:19 GMT

Can you try setting SEGGER_RTT_CONFIG_DEFAULT_MODE to 2 (BLOCK_IF_FIFO_FULL)?

RE: J-Link RTT Viewer lost some logs

Leo2019 — Tue, 21 May 2019 12:29:14 GMT

Yes,I using NRF_LOG_INFO to output logs to RTT in SDK 15.0 .

In sdk_config.h, I had set

#define SEGGER_RTT_CONFIG_BUFFER_SIZE_UP 2048 ;

#define NRF_LOG_BUFSIZE 2048

#define NRF_LOG_MSGPOOL_ELEMENT_COUNT 18

I send about 20-40 lines logs on startup，some was lost

RE: J-Link RTT Viewer lost some logs

Jørgen Holmefjord — Tue, 21 May 2019 10:59:49 GMT

Hi,

Are you using NRF_LOG to output logs to RTT? Which SDK version are you using? There are some configs in sdk_config.h related to NRF_LOG and RTT buffer sizes, and behavior with buffer overflow. Do you send large amounts of logs in short time?

Best regards,
Jørgen