TMS320F28379D: hex utility question, I need to generate one Hex file for my code which is either Motorola Hex or Intel Hex format.

Jay Amlani

Part Number: TMS320F28379D

Hi,

I want to generate one hex file, either in Motorola or intel hex format. The reason for this is that I am trying to implement calibration and INCA only supports limited types of hex files and at a time only one hex file. This has reduced my options.

Now, One of the way I think this could work is generating Motorola(s-1) 16 bit hex file, and use --memwidth and --romwidth as 16. This should work because the for TMS320C28x the target width is 16 bits.

But I keep getting the warning: address 0x00080000 exceeds 16-bit limit - truncated

And When I use this hex file in INCA it gives me error that the address are overlapping and does not recognize the file properly.

Am I missing something? Can you please help me with additional options which I might need to use with it.

Thank you,

Jay

over 2 years ago

0 George Mock over 2 years ago

TI__Guru**** 250260 points

I can't test to be sure, but I'm confident that changing from ...

Jay Amlani said:
Motorola(s-1) 16 bit hex

... to Motorola S2 format, or Motorola S3 format, will work. For the details, please search the C28x assembly tools manual for the chapter titled Hex Conversion Utility Description.

Please let me know if this reply resolves the problem.

Thanks and regards,

-George

0 Jay Amlani over 2 years ago in reply to George Mock

Prodigy 115 points

I get the same warning, address exceeds 16-bit limit even for S2 and S3 format when I keep the --memwidth and --romwidth as 16.

0 George Mock over 2 years ago in reply to Jay Amlani

TI__Guru**** 250260 points

I am unable to reproduce that result. For S3 format, do you use the option --motorola=3 (or -m3 for short)?

Thanks and regards,

-George

0 Jay Amlani over 2 years ago in reply to George Mock

Prodigy 115 points

Yes, I am selecting Motorola S hex(--motorola, -m=3) on the GUI under Output format and for specify memory width and specify rom width I select 16.

0 George Mock over 2 years ago in reply to Jay Amlani

TI__Guru**** 250260 points

Please submit the CCS project. Zip it up as described in the article Sharing projects. Then attach that zip file to your next post.

Thanks and regards,

-George

0 Jay Amlani over 2 years ago in reply to George Mock

Prodigy 115 points

I tried with clean project, followed by build project and the warnings went away with --motorola=3 option.
But the INCA tool is still giving error about the file being incomplete.

So I did some more debugging and it seems that CCS created 4 files in total for can_ex2_loopback_interrupts demo program. Why is it generating multiple hex files?

can_ex2_loopback_interrupts.zip

0 George Mock over 2 years ago in reply to Jay Amlani

TI__Guru**** 250260 points

You say ...

Jay Amlani said:
and for specify memory width and specify rom width I select 16.

But you didn't. Please specify --romwidth=16. That fixes part of the problem. By the way, you don't need to specify --memwidth=16, because that is the default.

The other problem is that the .econst output section, which is an initialized section, is allocated to a memory range on page 1, and not to a memory range on page 0. I'm not sure of the best fix. One possible fix is to change the allocation of .econst to a memory range on page 0. The other possible fix is to change the both the MEMORY directive, and the SECTIONS directive, to no longer use page 1.

To understand why these changes fix the problem, please search the C28x assembly tools manual for the sub-chapter titled Partitioning Data Into Output Files.

Thanks and regards,

-George

0 Jay Amlani over 2 years ago in reply to George Mock

Prodigy 115 points

Thank you George, I will read the sections pointed out by you and give it a try.

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TMS320F28379D: hex utility question, I need to generate one Hex file for my code which is either Motorola Hex or Intel Hex format.