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Flash file system problem

Genp

I have a problem with the project using Flash file system (RTL-ARM) on LPC2368 (no real time system).
I believe the problem is somewhere with the retarget.c file.

Originally I used the retarget.c from http_demo.
tcp/ip and dhcp worked fine. I implemented sd card directory read. I can read the flash disk and print the directory using printf.

Problems have started when I tried to read the file.
As soon as I declared FILE *fin in my function, I've got an error "L6200E: Symbol __stdout multiply defined (by retarget.o and stdio.o)" when linking.

I replaced the file retarget.c by the file from the project Keil\ARM\RV30\RTL\Boards\Keil\MCB2300\SD_File.
Now it compiles and links ok, but when I start debugging (using Ulink), after download it goes straight to the endless loop in _sys_exit in retarget.c. On reset/start it does the same.

Does anybody have a clue what is going on here ?
I coudn't find any clear explanation on how to configure the retarget.c.

Gennady

Parents
  • 0 in reply to Franc Urbanc

    Thanks a lot - assigning a heap size fixed the debugging (_sys_exit loop) problem.
    But now I have another one - formatted print is missing. It seems that both file and printf use stdout.
    In the project 'SD_File' for the mcb2300 board both file and printf are used, but it doesn't run on my mcb2370, so I don't know if it works.

    Any idea how to fix it?

    Thank you again,
    Gennady

Reply
  • 0 in reply to Franc Urbanc

    Thanks a lot - assigning a heap size fixed the debugging (_sys_exit loop) problem.
    But now I have another one - formatted print is missing. It seems that both file and printf use stdout.
    In the project 'SD_File' for the mcb2300 board both file and printf are used, but it doesn't run on my mcb2370, so I don't know if it works.

    Any idea how to fix it?

    Thank you again,
    Gennady

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