Re: STM32 ROMINT don't run

Hi Samuel

On 22/01/14 17:24, Samuel Charnet wrote:

> I want to try the ecos OS. My board come from waveshare, it is based
> on stm32f407ig core ( http://www.wvshare.com/product/EVK407I.htm )
> 
> After some days I have ecos from CVS compiled. With the configtool I
> have created my library with the stm3240 template and i have modified
> the startup type to ROMINT
> 
> I have a simple thread which blink a led. I can upload the binary file
> to the stm32 (i use the last openocd from source and olimex
> arm-usb-ocd-h jtag device)
> 
> Unfortunately the led don't blink. With gdb i can't break on any
> function and the stack seems broken.

You may be observing the following issue:

    http://bugs.ecos.sourceware.org/show_bug.cgi?id=1001864

Try modifying hal/cortexm/arch/current/src/hal_misc.c to read as follows:

> #if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_ROMINT)
> // Relocate data from ROM to RAM

Does that resolve the issue for you?

John Dallaway
eCos maintainer
http://www.dallaway.org.uk/john

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