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Virtual COM Port Software Source Code

PaladinSon53
Prodigy 115 points
Other Parts Discussed in Thread: TUSB3410

I am working on a project that requires me to make some modifications to the device side firmware that is included with the Virtual COM Port software that I downlaoded from you website.  Can I receive the firmware source code?

  • 0
    TI__Genius 16210 points

    TI can make the source code for our TUSBWINVCP available - it includes both the device firmware source as well as the PC-sode driver source.  Due to Export Control Requirements, in order to provide the Virtual COM Port source code to you, you will need to send an e-mail to usb@ti.com with answers to the following:
    a) Legal Company Name
    b) Physical address of "a" (not a PO Box)
                Street:
                City:
                State/Province/Region:
                Postal Code:
                Country:
    c) Company representative who will be responsible for receiving the code
                Name:
                Phone:
                E-mail:
    d) What is the Intended end-equipment/application that you will use the TUSB3410 in?
    e) What type of processor/equipment will the UART portion of the TUSB3410 be interfaced with?
    f) Which market will this product target? 
                Communication/Telecommunications
                Industrial/Control/Test/Medical Equipment
                Computers
                Automotive/Consumer Products
                Military
                Other (please specify): 

  • 0 in reply to DHarmon
    Prodigy 100 points

    Unfortunately, this source code is very old and not supported by the current IAR tools. It is essentially obsolete.

     

    I have spent about a week trying to build it with the current toolset, and still have a long way to go.

     

    Is there an up to date version of this code, or any support for rebuilding it ?

     

    If not, is the implication that one should use the part as is, using the existing firmware ?

     

    This would be a shame, as it would be a useful part if programming it was supported.

     

  • 0 in reply to nicholas rose
    TI__Genius 16210 points

    Nicholas,

    I know I responded to your direct e-mail, but I thought I would post this as well for others to review.

    Since we only provide a firmware build that has not changed in many years, we have not upgraded to a newer version of IAR.

    Please work with IAR on porting this version to their newer compilers - we have not done it and therefore can not comment on what needs to be done to accomplish this.

  • 0 in reply to DHarmon
    Prodigy 100 points

    Hi Dan

     

    I am familiar with the difficulties of supporting aging products, but you should probably flag the TUSB line as such, and in particular give strong warnings against trying to use the source code which should only be viewed as an application example.

     

    My guess is that IAR will view it as a TI problem (although their failure to support past compiler features is worrying). I've done most of the work to port it, but it is not something that someone outside TI or IAR would want to do (a LOT of work). For example, the compiler changed from big-endian to little-endian at some point - you can imagine the issues this causes.

     

    Even a small part like the TUSB line requires a large amount of understanding to use for any non-trivial applications. Ideally the manufacturer will supply working code examples which can be edited and rebuilt to produce similar products - doing the whole thing from scratch is rarely worth the effort. But, obviously this kind of support requires resources.

     

    I think I will probably have to move to a more modern and better supported part - a loyal TI man might suggest Luminary. It's been a learning experience....

     

  • 0 in reply to nicholas rose
    TI__Intellectual 2170 points

    Hello Nicholas,

    I've heard from some of TI's customers whose intend to customize the TUSB3410 FW source code that the old IAR compiler v5.50 is still being provided by IAR itself. I think a special request of this specific old IAR compiler should be made in order to build the FW and with no porting effort.

    Regards,

    Ismael

  • 0 in reply to Ismael Duron10236
    Prodigy 100 points

    Thanks for the thought - worth looking into.

    But I'm torn, as I've done 90% of the porting work, and would like to get the benefits of the current compiler. What to do ... ?

     

     

  • 0 in reply to nicholas rose
    Prodigy 100 points

    From my last post - the "What to do" was a rhetorical question - no reply expected ...