startup.c file for stm32f2xx

[acihana]

Posted on December 03, 2011 at 13:55

Hi,

I'm using STM32f205RB with codesourcery g++ compiller. I need startup file written in c language which includes vector table and interrupt handlers. In example projects there are only startup.s files.

[Andrew Neil]

Posted on December 03, 2011 at 19:38

''I need startup file written in c language which includes vector table and interrupt handlers''

Why?''In example projects there are only startup.s files'' So why not use them??

[Tesla DeLorean]

Posted on December 03, 2011 at 22:25

You'd think if it were remotely appropriate for it to be in C that it would already exist in that in form?

The linker works with object files, assemble the S file, and link it in. Learn to use the tools, and the requirements of the ARM Cortex-M3 in regard to it's vectors and there placement. Understand the startup requirements of G++, and if the C runtime startup requirements are the different, or the same.

[acihana]

Posted on December 05, 2011 at 08:43

Thanks for replies,

I wrote it myself. The file's attached if needed. ________________ Attachments : startup.c : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HtWm&d=%2Fa%2F0X0000000aRI%2F7cYyTErb.U8uoSDTsVQBLZ2FV8UB5SBEpMWqlGk36as&asPdf=false

[infoinfo989]

Posted on December 06, 2011 at 00:26

That's pretty interesting. I use the standard .s file like everyone else, but I think what you've done is interesting. One question: is it for the F1x or F2x processors? This discussion is about the 2xx however your attached file says:

// startup.c - Boot code for STM32F10x Arm Cortex-M3 microcontrollers // Copyright (c) 2007-2008 Bilkon Bilgisayar Kontrollu Cihazlar Ltd.Sti

Which processor did you use this file for? Thanks.

[domen23]

Posted on December 09, 2011 at 13:31

Interrupt handler names give out it's stm32f2xx. Other than those, all arm-cortex-m3 have the same startup code anyways.

[stforum.tormod9]

Posted on December 10, 2011 at 20:43

I have also been using C files instead of assembly, at least for the vector table, for STM32F1xx. It actually worked better using C in my case.

https://gitorious.org/dsonano/dso-firmware/blobs/master/DS0201_LIB/source/stm32f10x_vector.c It seems like ST used C in IAR examples, but assembly in GCC examples. The above file has some modifications so that it builds both with IAR and GCC.

[domen23]

Posted on December 12, 2011 at 07:30

> From: Tormod

> It actually worked better using C in my case.

What do you mean by this?

[acihana]

Posted on December 14, 2011 at 17:13

Hi Frank,

I copied that explanation header from my another file, so I made a mistake it must be like that;

// startup.c - Boot code for STM32F2xx Arm Cortex-M3 microcontrollers// Copyright (c) 2011-2012 Bilkon Bilgisayar Kontrollu Cihazlar Ltd.Sti

[acihana]

Posted on December 14, 2011 at 17:20

Yes, largely the same except for interrupt handler orders.