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Tool/software: Code Composer Studio
I'm using Code Composer version 7.4.0 with a DSPBIOS (version 6.33.6.50) application with a c6657 processor. I was trying to process datas using a function named "DSPF_sp_fftSPxSP" from TI's math library.
Unfortunately when I used those then the application aborted after few seconds because an internal exception was thrown: "Loop buffer exception and missed stall".
The error message is as follows:
B26=0xc2840000 B27=0x0
B28=0x3e47c5c3 B29=0x3f7b14be
B30=0xc2300000 B31=0x0
NTSR=0x1420f
ITSR=0xf
IRP=0x80f498
SSR=0x0
AMR=0x0
RILC=0x20
ILC=0x1b
Exception at 0x806464
EFR=0x2 NRP=0x806464
Internal exception: IERR=0x180
Loop buffer exception
Missed stall exception
ti.sysbios.family.c64p.Exception: line 248: E_exceptionMin: pc = 0x00806464, sp = 0x008125f8.
To see more exception detail, use ROV or set 'ti.sysbios.family.c64p.Exception.enablePrint = true;'
xdc.runtime.Error.raise: terminating execution
When I blocked the FFT function, that eliminates all the above problem.
Do you have some kind of technical answer explaining this unexpected behavior and the correct way to use FFT function?
