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Help using SystemView on an STM32 Nucleo board with re-flashed ST-Link #jlink #stm32

carlos.rodriguez@...
 

Hello:
 
I was wondering if the community could help me with using SystemView with Zephyr. 
 
When I connect to the board using JLink and then try to record with Systemview, I get a message telling me that the RTT control block was not detected.  If I force the call to SEGGER_SYSVIEW_Start() by either setting CONFIG_SEGGER_SYSTEMVIEW_BOOT_ENABLE=y or by putting it in my main function, what I get instead is a message to the effect that it can't find the SystemView buffer.
 
I believe I've been following the instructions correctly as outlined here:
 
https://docs.zephyrproject.org/2.4.0/guides/debugging/probes.html?highlight=segger.
 
and here
 
https://docs.zephyrproject.org/1.9.0/samples/subsys/debug/sysview/README.html
 
I am using Zephyr 2.4.9 with the 0.11.4 SDK on Ubuntu 20.4.
 
For the image, I am using the hello_world example and adding the following to the prj.conf file:
 
CONFIG_TRACING=y
CONFIG_SEGGER_SYSTEMVIEW=y
CONFIG_THREAD_NAME=y
CONFIG_USE_SEGGER_RTT=y
CONFIG_SEGGER_SYSTEMVIEW_BOOT_ENABLE=y
CONFIG_STDOUT_CONSOLE=y
 
It's interesting to note that JLink itself appears to connect just fine:
 
Connecting to target via SWD
Found SW-DP with ID 0x4BA01477
STM32 (Protection Detection): Unexpected IDCODE DEV_ID 0x 461 found. Only checking the 1st flash bank for write protection.
Found SW-DP with ID 0x4BA01477
DPv0 detected
Scanning AP map to find all available APs
AP[1]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
Iterating through AP map to find AHB-AP to use
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
FPUnit: 6 code (BP) slots and 2 literal slots
CoreSight components:
ROMTbl[0] @ E00FF000
ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 000BB00C SCS-M7
ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 003BB002 DWT
ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 002BB003 FPB
ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 003BB001 ITM
ROMTbl[0][4]: E0040000, CID: B105900D, PID: 000BB9A1 TPIU
ROMTbl[0][5]: E0041000, CID: B105900D, PID: 000BB925 ETM
Cortex-M4 identified.
J-Link>
 
I am working on a Nucleo-L496ZG board, but the same thing happens on a Nucleo-F429Zi or a Nucleo-L4R5zi.  I am following the SEGGER instructions to flash the onboard ST-Links with JLink firmware, which appears to work fine.
 
Any help will be appreciated.
 
Best regards:
 
-Carlos Rodriguez.

Raúl Sánchez Siles
 

  Hello:


  I remembered that Anas Nashif wrote a post about this subject:

https://www.planux.com/index.php/2018/08/21/tracing-zephyr-applications-with-segger-systemview/ 


  HTH, Regards,


El domingo, 4 de abril de 2021 3:15:14 (CEST) carlos.rodriguez via lists.zephyrproject.org escribió:

 

Hello:

 

I was wondering if the community could help me with using SystemView with Zephyr. 

 

When I connect to the board using JLink and then try to record with Systemview, I get a message telling me that the RTT control block was not detected.  If I force the call to SEGGER_SYSVIEW_Start() by either setting CONFIG_SEGGER_SYSTEMVIEW_BOOT_ENABLE=y or by putting it in my main function, what I get instead is a message to the effect that it can't find the SystemView buffer.

 

I believe I've been following the instructions correctly as outlined here:

 

https://docs.zephyrproject.org/2.4.0/guides/debugging/probes.html?highlight=segger.

 

and here

 

https://docs.zephyrproject.org/1.9.0/samples/subsys/debug/sysview/README.html

 

I am using Zephyr 2.4.9 with the 0.11.4 SDK on Ubuntu 20.4.

 

For the image, I am using the hello_world example and adding the following to the prj.conf file:

 

CONFIG_TRACING=y

CONFIG_SEGGER_SYSTEMVIEW=y

CONFIG_THREAD_NAME=y

CONFIG_USE_SEGGER_RTT=y

CONFIG_SEGGER_SYSTEMVIEW_BOOT_ENABLE=y

CONFIG_STDOUT_CONSOLE=y

 

It's interesting to note that JLink itself appears to connect just fine:

 

 Connecting to target via SWD

 Found SW-DP with ID 0x4BA01477

 STM32 (Protection Detection): Unexpected IDCODE DEV_ID 0x 461 found. Only checking the 1st flash bank for write protection.

 Found SW-DP with ID 0x4BA01477

 DPv0 detected

 Scanning AP map to find all available APs

 AP[1]: Stopped AP scan as end of AP map has been reached

 AP[0]: AHB-AP (IDR: 0x24770011)

 Iterating through AP map to find AHB-AP to use

 AP[0]: Core found

 AP[0]: AHB-AP ROM base: 0xE00FF000

 CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)

 Found Cortex-M4 r0p1, Little endian.

 FPUnit: 6 code (BP) slots and 2 literal slots

 CoreSight components:

 ROMTbl[0] @ E00FF000

 ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 000BB00C SCS-M7

 ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 003BB002 DWT

 ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 002BB003 FPB

 ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 003BB001 ITM

 ROMTbl[0][4]: E0040000, CID: B105900D, PID: 000BB9A1 TPIU

 ROMTbl[0][5]: E0041000, CID: B105900D, PID: 000BB925 ETM

 Cortex-M4 identified.

 J-Link>

 

I am working on a Nucleo-L496ZG board, but the same thing happens on a Nucleo-F429Zi or a Nucleo-L4R5zi.  I am following the SEGGER instructions to flash the onboard ST-Links with JLink firmware, which appears to work fine.

 

Any help will be appreciated.

 

Best regards:

 

-Carlos Rodriguez.


--

Raúl Sánchez Siles


SW Engineer


K-LAGAN EID

?
signature.asc

Anis
 

this only works on nrf boards, it doesn't seem to work on stm32.

did you guys have any luck with getting SystemView to work on an STM32 Nucleo board

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