The function efs_destroyfile (NDK 1.94) halt the cpu if called repeatedly from software interrupt on dsp DM642

Hi all,

I am testing an application on a DM642 DSP.

I have a hardware interrupt which calls a software interrupt  that calls a function “WebUpdate”.

Every second this function creates and destroys an xml file using the NDK libraries 1.94:

WebUpdate()

{

efs_destroyfile("errors.xml");

CreateXml();            //fill the buffer errors_xml

efs_createfile("errors.xml", errors_xml_size, (Uint8 *)errors_xml);

}

This code runs for a few minutes, then the CPU halts after the call to “efs_destroyfile”

I’ve done another test putting the function WebUpdate() inside a TASK rather than an interrupt.

In this case all works well, the application never fails  (NO CPU_halt)

I’d like to know if this tests “make sense”: are there any known issues calling the NDK functions inside an interrupt?

Test conditions:

-          XDS510 usb emulator

-           TMS320DM642 DSP

-          Code Composer 3.3.82.13, Code generation Tools 6.08, Bios 5.33.04

-          NDK 1.94

Valle Gianni