[SOLVED] J-link RTT Viewer can not display when I use _SEGGER_RTT.aUP[1]

Bluetooth-BLE · January 8, 2019 at 7:29 AM

Hi：
I want same log to display at J-link RTT Viewer channel 0 with _SEGGER_RTT.aUP[0] and same log to display at J-link RTT Viewer channel 1 with _SEGGER_RTT.aUP[1].

I set

C

SEGGER_RTT_MAX_NUM_UP_BUFFERS 2
SEGGER_RTT_MAX_NUM_SOWN_BUFFERS 2

when I use the following code ,the log can display channel 0 and channel 1.but do not use _SEGGER_RTT.aUP[1]

C

SEGGER_RTT_SetTerminal(0);
SEGGER_RTT_Write(0,&ch,1);


......
SEGGER_RTT_SetTerminal(1);
SEGGER_RTT_Write(0,&ch,1);

but use SEGGER_RTT_Write(1,&ch,1); the channel 1 do not display anything

Code

SEGGER_RTT_SetTerminal(0);
SEGGER_RTT_Write(0,&ch,1);


......
SEGGER_RTT_SetTerminal(1);
SEGGER_RTT_Write(1,&ch,1);

so ,please help me !

Best regards,

Bluetooth-BLE

SEGGER - Nino · January 8, 2019 at 2:01 PM

Hello,

(Moved thread to J-Link forum)
Thank you for your inquiry.
J-Link RTT Viewer can only display output on Channel 0. Channel 1 can only be logged into a file.
More information can be found in the J-link user manual in section J-Link RTT Viewer.

If you want to see output on RTT Viewer on more than just Channel 0 the J-Link SDK is required. With the SDK you can write your own Viewer application then without these restrictions.
https://www.segger.com/products/debug…ogy/j-link-sdk/

Best regards,
Nino

[SOLVED] J-link RTT Viewer can not display when I use _SEGGER_RTT.aUP[1]

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