TDA4VM: Errors while using C++ libraries <string> and <istream> on CCS

To complete my previous message, I'm working on C7x DSP 

Hi Mélanie,

I'll look into this issue. In the meantime, could you please try running a simple code example in bare-metal mode?

Best regards,
Sivadeep

Hi Sivadeep, 

Could you give me more specifications about what you mean by: 'running a simple code example in bare-metal mode'? I guess that the example should use that kind of library, right?
Are there examples of that kind in the packages provided by TI?

Best regards,
Mélanie 

Hi Mélanie,

Mélanie Esteves said:

Could you give me more specifications about what you mean by: 'running a simple code example in bare-metal mode'? I guess that the example should use that kind of library, right?

I will try from my side. What I meant is to execute a simple code which is invoking these libraries. I think all the aforementioned packages are available in TI CGT

Could you please give me a sample code if possible.

Regards,
Sivadeep 

I'm sorry, but there are too many codes and folders to look through ... so without any indication of which one I should use or in which file I should look, it's clearly complicated... even more when we are looking  for codes using specific librairies 

Hi Mélanie,

I’ll try to reproduce this and will update my findings in this thread.

Best regards,
Sivadeep

Hi Mélanie,

Sorry for the delay in response. I was not able to reproduce the issue from my side. I tried using a baremetal application code. I'm attatching the code below.

#include <string>
#include <fstream>
#include <sstream>
#include <iostream>

int main()
{
    std::string start = "C7000 Test";
    size_t len = start.length();

    // Output to console
    std::cout << "String: " << start << "\n";
    std::cout << "Length: " << len << "\n";

    std::ofstream outfile("test_output.txt");
    if (outfile.is_open()) {
    outfile << "File stream working with C7x.\n";
    outfile.close();
    std::cout << "File write success.\n";
    } else {
    std::cout << "Failed to open file.\n";
    }

    std::istringstream iss("146 246");
    int a, b;
    iss >> a >> b;
    std::cout << "Parsed integers: " << a << ", " << b << "\n";

    //while (1); // Hold for debugger inspection
    return 0;
}

Can you try the same in bare-metal mode. Most probably the issue maybe with CCS installation.

Regards,
Sivadeep

Hi Sivadeep, 

Thank you for your answer ! 
I run your code on CCS in baremetal mode. However, I did not encounter any issues, the debug session was sucessful.
As a result, I quite do not understand where the issues mentionned comes from... 

Regards, 

Mélanie

Hi,

Can you please check if all the steps from below links are followed.

• processor-sdk-rtos-j721s2/08_05_00_11/exports/docs/psdk_rtos/docs/user_guide/evm_setup_j721s2.html
• https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-j721s2/08_05_00_11/exports/docs/psdk_rtos/docs/user_guide/ccs_setup_j721s2.html

Regards,

Sivadeep

Hi, 

There are indeed

Regards, 

Mélanie

Hi,

I'm not sure what the issue is. Since the libraries mentioned are working in the test code, the problem might be coming from your code.

Regards,
Sivadeep

Hi, 

I noticed something unusual: since I allowed my J721 EVM and my computer to shut down for several days, the error messages have disappeared. Could it be possible that those errors occurred when the cache memory was overfilled due to launching too many debug sessions?

Regards, 

Mélanie 

Hi, 

I will check this case. Please check if the issue is still reproducible.

Regards,
Sivadeep