ChibiOS Free Embedded RTOS

Posted: **Fri May 30, 2014 11:44 pm**

I see that the STM32F4 port supports remapping the NVIC vector table by re-defining CORTEX_VTOR_INIT, located in ARMCMx/STM32F4xx/cmparams.h. However, I would like to re-define this variable on a per-project basis. Due to the order of inclusion, re-defining it in chconf.h or with a compiler -D directive will not override the definition of this macro. Can the definition in cmparams.h be changed to a default definition? Ie,

Code: Select all

#ifndef CORTEX_VTOR_INIT
#define CORTEX_VTOR_INIT 0x00000000
#endif

This way, it can be re-defined in chconf.h.

Posted: **Sat May 31, 2014 7:30 am**

Hi,

It is not located in cmparams.h, it is located in chcore_v7m.h as follow:

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/**
 * @brief   NVIC VTOR initialization expression.
 */
#if !defined(CORTEX_VTOR_INIT) || defined(__DOXYGEN__)
#define CORTEX_VTOR_INIT                0x00000000
#endif

You just need to add

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#define CORTEX_VTOR_INIT                0x00000000

to chconf.h or as a -Dxxx in your makefile.

Giovanni

Posted: **Sat May 31, 2014 9:24 pm**

Well, the egg is on my face. I think I made that modification (moving the definition from chcore_v7m.h to chparams.h) in my local copy.

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