[VC5503] HPI Boot

Kaka

Other Parts Discussed in Thread: TMS320VC5503

Hi TI Experts,

Please let me confirm the following question.

[Question]
Now my customer use the boot image(binary file) size of odd byte sizes and using the HPI boot for their application. If use this image for C5503 with using the HPI boot, there will be a lack in 1 byte data because the HPI peripheral is 16 bit access.
So, would you please teach me the last "1byte" data value which my customer should send to C5503?

They checked the data size of binary file on file properties on Windows PC. And this size is 8753 bytes. So, the bit value is "70024" bits and the time of access is"4376.5". I would like to know the value of 8bit(1byte) data.

I do not know that the binary image size is depends on the boot file size(odd, even byte size). Is this influence on the access via HPI?

If you have any question, please let me know.
Best regards.
Kaka

over 7 years ago

0 Lalindra Jayatilleke over 7 years ago

TI__Mastermind 30365 points

Kaka,
We are looking at this question and will get back to you. Thanks.

Lali

0 Ming Wei over 7 years ago

TI__Mastermind 41935 points

Hi Kala,

First of all, I want to clarify that the C5503 does not support HPI mode. Only C5517 supports the HPI mode.

Since the C55xx only allows byte addressing for code space, the odd size of the boot image must caused by the code sections. You can use the method in the http://www.ti.com/lit/an/sprabd7c/sprabd7c.pdf sections 3.3.1.3 to make sure the code sections are aligned to 16 bit word. The hex66 will pad each section to 64 bit (see table 4 for details). This way, the boot image will be guaranteed to be even byte in size.

Best regards,

Ming

0 Kaka over 7 years ago in reply to Ming Wei

Guru 24520 points

Hi Ming,

The target device is TMS320VC5503. This device support the HPI Boot. Rihgt?

I do not know why the bootimg is generated with odd image size.

Is there any prbolem for the pratameter for hex55.exe?

Best regards.
Kaka

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[VC5503] HPI Boot