# Need to increase the duration of trace data using CCS-percepio Using Snapshotmode

**URL:** <https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848>\
**Category:** Libraries\
**Tags:** tracealyzer, debug, trace\
**Created:** [September 12, 2025, 9:49am UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848 "2025-09-12T09:49:54Z")\
**Posts on this page:** 15\
**Page:** 1

<div class="post-metadata">

**Author:** ![Namana](https://avatars.discourse-cdn.com/v4/letter/n/47e85d/32.png) [@Namana](https://forums.freertos.org/u/Namana)\
**Post date:** [September 12, 2025, 9:49am UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/1 "2025-09-12T09:49:54Z")

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Hi,

I’m using AM6442, R5 core as a main processor to communicate with percepio-CCS.

#define TRC\_CFG\_STREAM\_PORT\_BUFFER\_SIZE 1024 \* 29

when I’m trying to save the snapshot trace in CCS tool.

I’m able to save the buffer record of 29kb max. If i’m trying to increase the buff recorder size \> 30Kb. I’m getting error pop up like “Unable to read memory“.

During 29kb → I’m able to save the trace data (2.3sec) in file which is of 32Kb.

I tried both methods like chunks wise and transfer all too.

Is there any limit of memory in snapshot mode?

How percepio knows that, where to read the record(memory location) and provides to tracealyzer  
Is there any configuration? Any doc that may help to understand better..

I’m using XDS200 JTAG Emulator for debugging.  
Record to save: i’m using DDR..

Here is my attached configuration screenshot..

 ![image](https://d2v6vdsk2p900z.cloudfront.net/original/2X/5/5a1571ae4f4519331caa956def6e7dbfbea49028.png)

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<div class="post-metadata">

**Author:** ![johankraft](https://avatars.discourse-cdn.com/v4/letter/j/e68b1a/32.png) [@johankraft](https://forums.freertos.org/u/johankraft)\
**Post date:** [September 12, 2025, 10:28am UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/2 "2025-09-12T10:28:01Z")

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I’m not aware of any size limitation in the Eclipse plugin. Do you get the same problem if using the gdb dump command? See [Tracealyzer Snapshots with GDB or Eclipse - Percepio](https://percepio.com/tracealyzer/gettingstarted/snapshots-eclipse-gdb/)

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<div class="post-metadata">

**Author:** ![Namana](https://avatars.discourse-cdn.com/v4/letter/n/47e85d/32.png) [@Namana](https://forums.freertos.org/u/Namana)\
**Post date:** [September 12, 2025, 10:50am UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/3 "2025-09-12T10:50:39Z")

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Thanks for the suggestion.

I’m using CCS IDE.

I didn’t tried that, becaz i don’t know how to do in ccs

I checked in memory browser w.r.to recorderdataptr address. It is in valid address ( with in ddr only)..

R u referring to that dump details?

My intrest on, I have more than enough memory in ddr

Eventhough y I’m not able to create trace data for more than 29kb

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<div class="post-metadata">

**Author:** ![johankraft](https://avatars.discourse-cdn.com/v4/letter/j/e68b1a/32.png) [@johankraft](https://forums.freertos.org/u/johankraft)\
**Post date:** [September 12, 2025, 11:29am UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/4 "2025-09-12T11:29:28Z")

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OK. It seems as CCS doesn’t use GDB, but you could try the following as an experiment to isolate the problem:

**Halt** the target when the TraceRecorder snapshot is ready.

1. Open **View → Expressions** and add `RecorderDataPtr` (and your size symbol, e.g. `RecorderDataSize` or whatever you use).
2. Note the pointer value (e.g. `0x2001_0000`) and the buffer **size in bytes**.
3. Open **View → Memory Browser**.
4. In the address box, enter the address (you can type the symbol name `RecorderDataPtr` directly, or paste the numeric address).
5. Right-click inside the Memory Browser and choose **Save Memory…** (sometimes shown as **Export Memory…** ).
6. Enter:
  - **Start address:** the value of `RecorderDataPtr`

  - **Length (bytes):** your buffer size (can be larger than necessary if you are uncertain of the exact size)

  - **Format:**  **Binary**

  - **File:** `trace.bin`

Check if this approach allows for larger snapshots. If you get the same issue, it is probably a limitation in the CCS debugging backend.

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<div class="post-metadata">

**Author:** ![Namana](https://avatars.discourse-cdn.com/v4/letter/n/47e85d/32.png) [@Namana](https://forums.freertos.org/u/Namana)\
**Post date:** [September 12, 2025, 12:02pm UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/6 "2025-09-12T12:02:15Z")

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> [@johankraft](#):
>
> RecorderDataPtr

Yeah. I did that. please find the below ss..

But it is a valid address of my DDR memory.  
DDR memory size approx. 16MB

Here is the memory map address of DDR1:

DDR\_0 a0100000 00001000 00001000 00000000 RWIX  
DDR\_1 a0101000 00fff000 000268b0 00fd8750 RWIX

SEGMENT ALLOCATION MAP

run origin load origin length init length attrs members

* * *

00000000 00000000 00001148 00001148 r-x  
00000000 00000000 00000040 00000040 r-x .vectors  
00000040 00000040 00000ac0 00000ac0 r-x .text.hwi  
00000b00 00000b00 00000430 00000430 r-x .text.cache  
00000f30 00000f30 00000218 00000218 r-x .text.mpu  
00001150 00001150 000001b8 000001b8 r-x  
00001150 00001150 000001b0 000001b0 r-x .text.boot  
00001300 00001300 00000008 00000008 r-x .text:abort  
a0100000 a0100000 00001000 00001000 r–  
a0100000 a0100000 00001000 00001000 r-- .resource\_table  
a0101000 a0101000 00018c00 00000000 rw-  
a0101000 a0101000 0000cc00 00000000 rw- .bss  
a010dc00 a010dc00 00008000 00000000 rw- .sysmem

Sorry to say that, i’m not able add the memory dump file here..  
becaz, i’m a new user..

RecorderDataPtr is using the .bss with aprox..32.7KB

 ![image](https://d2v6vdsk2p900z.cloudfront.net/original/2X/4/4c8348379b7bdff0ee4088fe5e876c13d68f5358.png)

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<div class="post-metadata">

**Author:** ![johankraft](https://avatars.discourse-cdn.com/v4/letter/j/e68b1a/32.png) [@johankraft](https://forums.freertos.org/u/johankraft)\
**Post date:** [September 12, 2025, 12:22pm UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/7 "2025-09-12T12:22:06Z")

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So you tried saving the memory dump from the **Memory Browser** → **Save Memory**? If you set the format to Binary and name the file _something.bin_, it should be possible to open directly in Tracealyzer/View (using File → Open → Open FIle) assuming all is well.

(Note that you don’t need to dump the whole memory, just the part where the trace buffer is. Also, the dump doesn’t have to match the exact boundaries of the trace buffer, as long as all data is included.)

Does this work for you?

If so, can you save memory dumps larger than 32 KB in this way, or do you get errors from the CCS SaveMemory function?

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<div class="post-metadata">

**Author:** ![Namana](https://avatars.discourse-cdn.com/v4/letter/n/47e85d/32.png) [@Namana](https://forums.freertos.org/u/Namana)\
**Post date:** [September 12, 2025, 12:51pm UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/8 "2025-09-12T12:51:04Z")

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yeah I tried that, I’m not able to open that dump.bin file using tracealyzer. It is throwing error shown in the below ss.

but my tracealyzer is licensed.. one

do you get errors from the CCS SaveMemory function?

no..

it is asking from which address, i gave the ptr address and then it is also asking for the bouandary (mandatory) like in terms of words. i gave 65535.. and save the memory dump in dump.bin file.

 ![image](https://d2v6vdsk2p900z.cloudfront.net/original/2X/5/522eb1e535dfec962dc6cc4002eb486623ead200.png)

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<div class="post-metadata">

**Author:** ![johankraft](https://avatars.discourse-cdn.com/v4/letter/j/e68b1a/32.png) [@johankraft](https://forums.freertos.org/u/johankraft)\
**Post date:** [September 12, 2025, 1:01pm UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/9 "2025-09-12T13:01:34Z")

</div>

The error message means that Tracealyzer can’t find anythings that looks like TraceRecorder data in the dump. Did you call xTraceEnable before dumping the data?

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<div class="post-metadata">

**Author:** ![Namana](https://avatars.discourse-cdn.com/v4/letter/n/47e85d/32.png) [@Namana](https://forums.freertos.org/u/Namana)\
**Post date:** [September 12, 2025, 1:07pm UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/10 "2025-09-12T13:07:30Z")

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yes…

TimerP\_start(gTimerBaseAddr[CONFIG\_TIMER0]);

```auto
/* Enable Tracealyzer */
if (xTraceEnable(TRC_START) != TRC_SUCCESS)
{
    DebugP_log("Trace enable failed.\r\n");
    const char *err = NULL;
    xTraceErrorGetLast(&err);
    while (1)
        ; // Stay here for debugging
}
xTraceStringRegister("Logging", &xUserEventChannel);
xTracePrintF(xUserEventChannel, "Starting Demo...");
reset_timer0_counter_to_zero();

/* Print CPU Clock Frequency */

after success return only i took trace

```

Now, it’s opened.. Thanq @johankraft

From this, i can save my trace buffer(upto 12MB) w.r.to RAM size availability…  
But, we can’t save and open the trace record via Percepio.  
Instead of that, I can save via memory dump and try to open via tracealyzer.. right?  
that is what is happening in my case..

Due to this memory dump method, i can able to save the minutes of trace data and analyze the CPU…

If it so, as my assumption. From CCS is not able to save trace data via plugin (Percepio→ save snapshot) which is more than 32KB trace bin file..

As my Understanding is correct?

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<div class="post-metadata">

**Author:** ![aggarg](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/aggarg/32/4245_2.png) [@aggarg](https://forums.freertos.org/u/aggarg)\
**Post date:** [September 14, 2025, 10:43am UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/11 "2025-09-14T10:43:31Z")

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> [@Namana](#):
>
> Sorry to say that, i’m not able add the memory dump file here..  
> becaz, i’m a new user..

You should be able to upload now.

> [@Namana](#):
>
> If it so, as my assumption. From CCS is not able to save trace data via plugin (Percepio→ save snapshot) which is more than 32KB trace bin file..
> 
> As my Understanding is correct?

Where did you get this plugin from? If it is from TI, then you should ask TI.

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<div class="post-metadata">

**Author:** ![johankraft](https://avatars.discourse-cdn.com/v4/letter/j/e68b1a/32.png) [@johankraft](https://forums.freertos.org/u/johankraft)\
**Post date:** [September 14, 2025, 2:38pm UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/12 "2025-09-14T14:38:59Z")

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I don’t quite follow. Do you mean it doesn’t work to use the Percepio Trace Exporter (Percepio menu) if more than 32KB, but it works using the CCS memory dump?

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<div class="post-metadata">

**Author:** ![johankraft](https://avatars.discourse-cdn.com/v4/letter/j/e68b1a/32.png) [@johankraft](https://forums.freertos.org/u/johankraft)\
**Post date:** [September 14, 2025, 3:03pm UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/13 "2025-09-14T15:03:01Z")

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I tested the Ecplise plugin with a 50 KB trace buffer and that worked fine in my setup. This was with STM32CubeIDE though. So there is no limitation in the plugin. However, we have only tested this on Eclipse IDEs based on GDB for the debugging. TI appears to use a different debug server. But great that you got it working anyway. If you want a simpler solution, I think CCS has a scripting system called DDS that might allow for automating the memory dump. I have not tried it, but maybe you could make a dds script for this.

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<div class="post-metadata">

**Author:** ![Namana](https://avatars.discourse-cdn.com/v4/letter/n/47e85d/32.png) [@Namana](https://forums.freertos.org/u/Namana)\
**Post date:** [September 14, 2025, 3:34pm UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/14 "2025-09-14T15:34:02Z")

</div>

Sorry. I got this from percepio

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<div class="post-metadata">

**Author:** ![Namana](https://avatars.discourse-cdn.com/v4/letter/n/47e85d/32.png) [@Namana](https://forums.freertos.org/u/Namana)\
**Post date:** [September 14, 2025, 3:36pm UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/15 "2025-09-14T15:36:07Z")

</div>

It’s my assumption.

Yes. It’s working

If I’m doing memory dump method manually

Try to open that in tracealyzer

I’m able to see trace data

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<div class="post-metadata">

**Author:** ![Namana](https://avatars.discourse-cdn.com/v4/letter/n/47e85d/32.png) [@Namana](https://forums.freertos.org/u/Namana)\
**Post date:** [September 14, 2025, 3:38pm UTC](https://forums.freertos.org/t/need-to-increase-the-duration-of-trace-data-using-ccs-percepio-using-snapshotmode/23848/16 "2025-09-14T15:38:01Z")

</div>

> [@johankraft](#):
>
> Eclipse IDEs based on GDB

But I didn’t tried yet with ccs IDE with the option of gdb.

May be my debug server was different. I will try GDB server.

Tomorrow I will check and let u know..

Thankyou @johankraft for guiding me in a right path till now.