_asm directive in KDS

[frankbannon]

Hi everyone,

I am a noob with KDS and Kinetis MCU's.

I imported "hello world" examples for the FRDMKL26Z board and I am compiling.  I get a build error with the auto generated "Statup.c" code.  The complier is expecting an add'l "(" in the ASM directive, see below.

It appears that the statup.c code was imported from Keil and not specific to KDS and KDS doesn't like the syntax.  Any thoughts?

__asm void __thumb_startup(void)

{

  IMPORT __init_hardware

  IMPORT __main

  LDR R0, =__init_hardware

  BLX R0

  LDR R0, =__main

  BX R0

  ALIGN 4

}

[ZhangJennie]

Hi Frank,

the syntax is for ARM C compiler.

__asm void __thumb_startup(void)

{ <assembly code>}

  if use GNU C compiler, use this syntax, for example:

__asm (

        "mov    r0,%0\n\t"

        "cmp    r0,#0\n\t"

        "beq    skip_sp\n\t"

        "mov    sp,r0\n\t"

        "sub    sp,#4\n\t"

        "mov    r0,#0\n\t"

        "mvn    r0,r0\n\t"

        "str    r0,[sp,#0]\n\t"

        "add    sp,#4\n\t"

        "skip_sp:\n\t"

        ::"r"(addr));

Have a great day,
Zhang Jun

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[ivadorazinova]

Hi Frank Bannon,

please, where you get the example Hello World for KL26Z?

Do you work with KSDK V1.1 ?

Best Regards,

Iva

[frankbannon]

Iva,

I am using KDS2.0

I got the example code from the FRDMKL26 sample code.  It is a CW project.

Frank