How to use RTT in bootloader project

RE: How to use RTT in bootloader project

Sigurd — Wed, 05 Jul 2017 14:45:26 GMT

If you remove RTT from the app project, does it work in the Bootloader project ?

If yes, see this post for more information.

RE: How to use RTT in bootloader project

alivexiaoluo — Wed, 05 Jul 2017 08:52:52 GMT

SEGGER_RTT_printf() is not working in bootloader project,SEGGER_RTT_printf() works in app project. Only app project log information appears in RTT viewer window.

RE: How to use RTT in bootloader project

Sigurd — Wed, 05 Jul 2017 08:45:55 GMT

SEGGER_RTT_printf() is not working ? Have you tried the steps shown in the RTT tutorial ?

RE: How to use RTT in bootloader project

alivexiaoluo — Tue, 04 Jul 2017 02:06:25 GMT

Yes,I do not get the error any more. There is no sdk_config.h file in my bootloader project( or I can not find it?). my bootloader project is transplanted from nRF5_SDK_11.0.0_89a8197 / examples/dfu/bootloader/pca10028/dual_bank_ble_s130/arm5_no_pack/dfu_dual_bank_ble_s130_pca10028.

I have define NRF_LOG_USES_RTT in nrf_log.h and add NRF_LOG_USES_RTT in Keil configuration window. What can i do for printf works,Thanks!

RE: How to use RTT in bootloader project

Sigurd — Thu, 22 Jun 2017 10:33:02 GMT

You are no longer getting the " Error: L6985E: Unable to automatically place AT section " ?

For printing; do you have #define NRF_LOG_ENABLED 1 in sdk_config.h ?

RE: How to use RTT in bootloader project

alivexiaoluo — Thu, 22 Jun 2017 03:18:53 GMT

Thanks,Sigurd.I have already set the IROM1 Start:0x3A000 , IROM Size:0x5C00,and #define BOOTLOADER_REGION_START 0x0003A000. Build is OK,Download is OK,but I can not see my printfs in RTT View terminal. NRF_LOG_USES_RTT is defined.Do I miss something?

RE: How to use RTT in bootloader project

Sigurd — Fri, 16 Jun 2017 12:30:49 GMT

Hi,

You will need to allocate more flash so the image can fit. Instructions on how to do that can be found in this thread here. You can first try to set the IROM settings to IROM1 Start: 0x3A000; IROM Size: 0x5C00;