H8S-2345 programming with FDT

I have a board with the H8S-2345 microprocessor and for many years I programmed the flash on board using a RS232 connection in BOOT mode. I used the FDT 4.9 with protocol A. Unfortunately the RS232 port is almost disappeared on modern computer and we have serious problems with USB adapter. The program remain hang up and the communication is interrupted. This programming method is working properly if the computer has a native RS232. What can I do to bypass the problem?

  • I'm sorry but I think there is no real alternative for this.
    When you have a look at the FDT installation directory you will find a utility "FDTAdvancedsetup.exe". This utility allows to add additional delays between single data transfers during programming to avoid communication problems.
  • In reply to FrankL:

    Thank you for replying me back. I'll try to tune FDT as you suggest.
  • In reply to FrankL:

    I made some tests, but nothing of the options in "FDTAdvancedsetup.exe" seems to help me. In particular the problem arises with WINDOWS 10 and USB-RS232 adapter, while with WIN7 I have no problem. For what I understand the problem concerns the "protocol A". As a matter of fact I made some test with FDT 4.09 in the same environment (WIN10), programming another board with an RX microprocessor that of course does't need protocol A and everything works very well. I'm wondering if there is the possibility to have the source code of protocol A, so as to rearrange and recompile it, or at least some document that expains the algorithm.
  • In reply to Lui Luigi:

    Lui,

    Here is some information about USB:
    www.beyondlogic.org/.../usb3.shtml

    I hope this helps

    Mike Clements
    RenesasRulz Moderator
  • This thread will be archived due to inactivity.

    Mike Clements
    RenesasRulz Moderator