CCS/TMS320F28027: TMS320F28027

Kevin Shu

Part Number: TMS320F28027
Other Parts Discussed in Thread: UNIFLASH, CONTROLSUITE

Tool/software: Code Composer Studio

Hi, I am getting the error when programming the piccolo:

C28xx: Flash Programmer: Error encountered when writing to flash memory
C28xx: File Loader: Memory write failed: Unknown error
C28xx: GEL: File: C:\Users\M\workspace_v7\Audio_ProjectNew\Debug\Audio_ProjectNew.out: Load failed.

I then used UniFlash to delete the flash and tried to verify the image from there and I get:

C28xx: File Loader: Verification failed: Values at address 0x3D7800@Program do not match Please verify target memory and memory map.

Below is my memory map:

over 8 years ago

0 Kevin Shu over 8 years ago

Prodigy 45 points

bump

0 Gautam Iyer over 8 years ago in reply to Kevin Shu

Guru 192875 points

Hi Kevin,

This is for the first time you tried to program the chip or was this chip programmed multiple times before?

Regards,
Gautam

0 Kevin Shu over 8 years ago in reply to Gautam Iyer

Prodigy 45 points

Hi Gautam,

What I am trying to do is to implement FFT into the F28027. As the F28027 only takes fixed point values, I can only do fixed point FFT. I wish to send my ADC readings to the FFT (seems like a difficult task that I thought it would be.. just because I have to change the memory map)

I've implemented the FixedPointLib from ControlSuite.

To answer your question, I did get another F28027 and was able to reprogram it. However, when I send my ADC values to the FTT function, it would throw the exact same error.

C28xx: Flash Programmer: Error encountered when writing to flash memory

C28xx: File Loader: Memory write failed: Unknown error

C28xx: GEL: File: C:\Users\M\workspace_v7\Audio_ProjectNew\Debug\Audio_ProjectNew.out: Load failed.

Would it be possible if I could send you my files?

0 Rajaravi Krishna Katta over 8 years ago in reply to Kevin Shu

TI__Expert 6795 points

Hi Kevin,

Could you please attach your project? I will check on my board.

Thanks,

Katta

0 Kevin Shu over 8 years ago in reply to Rajaravi Krishna Katta

Prodigy 45 points

Here it is. Let me know if you have any problems.

0 Rajaravi Krishna Katta over 8 years ago in reply to Kevin Shu

TI__Expert 6795 points

Hi,

When you mention ->"However, when I send my ADC values to the FTT function, it would throw the exact same error."
Do you get this error while running the code? Or while loading the code to the board.

If it is while running the code, when do you see this error? Is it while calling "RFFT32_brev"?

Was there a reason why the computational buffer is not aligned to 2N words boundary?

Thanks,
Katta

0 Rajaravi Krishna Katta over 8 years ago in reply to Kevin Shu

TI__Expert 6795 points

Hi Kevin,

While going through your project I found that in memory map file -> .reset is allocated to 0x3D78000 which is OTP location.
This allocation happened as you missed adding .reset in the linker command file.

-------------------------------------------------------------------------------------------------------------
SECTION ALLOCATION MAP

output attributes/
section page origin length input sections
-------- ---- ---------- ---------- ----------------
.reset 0 003d7800 00000002
003d7800 00000002 rts2800_ml.lib : boot28.obj (.reset)

FFTtf 0 003f0000 00001800
003f0000 00001800 c28x_fixedpoint_dsp_library.lib : FFT32_init.obj (FFTtf)
-------------------------------------------------------------------------------------------------------------

Is it done intentionally?

If not, add this line in the linker command file.
.reset : > RESET, PAGE = 0, TYPE = DSECT

With the memory map will become

-------------------------------------------------------------------------------------------------------------
SECTION ALLOCATION MAP

output attributes/
section page origin length input sections
-------- ---- ---------- ---------- ----------------
FFTtf 0 003f0000 00001800
003f0000 00001800 c28x_fixedpoint_dsp_library.lib : FFT32_init.obj (FFTtf)
-------------------------------------------------------------------------------------------------------------

Could you please make this change and program again?

Thanks,
Katta

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CCS/TMS320F28027: TMS320F28027