CIO & Printf

Jessie Cui

There is a red message when the code run into the instruction of "printf();"

The message is :

The CIO command cmd:(255) in the CIO buffer at address (0x821b00) was not recognized. Please check the device and program memory maps.

So I increase the heap size first, but the phenomenon is still there. Is the heap size not big enough?

Then I put the funtcion contain "printf()" in a new section "MyTestMem". And CIO is a seperate secion in .cmd file. Below is my .cmd file.

-c
-heap 0x5000
-stack 0x3000

MEMORY
{
        L1D:     o = 00f00000h   l = 00008000h
        L1P:     o = 00e00000h   l = 00008000h
        L2:      o = 00800000h   l = 00200000h
}

SECTIONS
{
    .csl_vect   >       L2
    .text       >       L2
    .stack      >       L2
    .bss        >       L2
    .cinit      >       L2
    .cio        >       L2
    .const      >       L2
    .data       >       L2
    .switch     >       L2
    .sysmem     >       L2
    .far        >       L2
    .testMem    >       L2
    .MyDataMem >       L2
   .MyTestMem >       L2
}

Thanks.

over 16 years ago

0 Bernie Thompson TI over 16 years ago

TI__Mastermind 41665 points

What version of CCS are you using? I believe there was a bug in a earlier version of CCS 3.3 that could lead to this problem, it may be worth updating CCS to a newer service release from the update advisor under the help menu of CCS.

0 Jessie Cui over 16 years ago in reply to Bernie Thompson TI

Prodigy 250 points

Bernie Thompson said:

What version of CCS are you using? I believe there was a bug in a earlier version of CCS 3.3 that could lead to this problem, it may be worth updating CCS to a newer service release from the update advisor under the help menu of CCS.

My version is 3.3.77

Is it too old?

0 Mariana over 16 years ago in reply to Jessie Cui

TI__Mastermind 24340 points

Hi Jessie,

This is SR 8, to see the version number please see this page.

This bug was corrected in SR3, so although it is always good to get the latest SR, this might not be the problem. Could you please go to spectrum's website and get the latest drivers?

0 Brad Griffis over 16 years ago in reply to Mariana

TI__Guru*** 125430 points

Please read the section "How to use printf in a project" at this wiki page:

http://wiki.davincidsp.com/index.php/Tips_for_using_printf

Perhaps you've missed one of those steps.

Brad

0 Alexsander Malyshev over 14 years ago in reply to Brad Griffis

Prodigy 70 points

The CIO command cmd:(255) in the CIO buffer at address (0x81275f00) was not recognized. Please check the device and program memory maps.

Hello,

I am working on a encoder (c64xplus_mpeg4enc_02_02_04_production) with DSP/ BIOS

After the end of the encoder output file to be written to disk. The file is written, but the file is empty. After debugging and run the program displays:

*******************************************

Read Configuration Set 1

*******************************************

Running in Output Dump Mode

Creating Algorithm Instance...

Algorithm Instance Creation Done...

The DSP shows that the program is still running.

When I manually try to halt the execution, I get an error:

The CIO command cmd:(255) in the CIO buffer at address (0x81275f00) was not recognized. Please check the device and program memory maps.

At that address, as per the map file, the rts64plus.lib -> trgmsg.obj is present.

Please let me know why this would come up and how to resolve this. Show you how to fix the problem? Why is the output file is empty? How to get the full output file?

Thank you

Malyshev.

0 Brad Griffis over 14 years ago in reply to Alexsander Malyshev

TI__Guru*** 125430 points

You might open the Kernel Object Viewer and see if there are any issues related to stack overflows, etc. Try updating to the latest version of CCS. See the troubleshooting section of this article too:

http://processors.wiki.ti.com/index.php/Tips_for_using_printf

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CIO & Printf