vadkudr
Joined: 12 Jul 2005
Posts: 120
Helped: 12
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 02 Nov 2007 8:12 Re: How to run asm code on TI`s C6713 DSP |
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It should be some examples in TI directories after installing code composer.
You should have vectors file
example:
;
; Copyright 2002 by Texas Instruments Incorporated.
; All rights reserved. Property of Texas Instruments Incorporated.
; Restricted rights to use, duplicate or disclose this code are
; granted through contract.
;
;
; "@(#) DSP/BIOS 4.80.208 12-06-02 (barracuda-l19)"
;
; ======== vectors.asm ========
; Plug in the entry point at RESET in the interrupt vector table
;
;
; ======== unused ========
; plug inifinite loop -- with nested branches to
; disable interrupts -- for all undefined vectors
;
unused .macro id
.global unused:id:
unused:id:
b unused:id: ; nested branches to block interrupts
nop 4
b unused:id:
nop
nop
nop
nop
nop
.endm
.sect ".vectors"
.ref _initblink ; main programm
.ref _mig ; interrupt service
.align 32*8*4 ; must be aligned on 256 word boundary
RESET:
mvkl _initblink,b0 ; load destination function address to b0
mvkh _initblink,b0
b b0 ; start branch to destination function
mvc PCE1,b0 ; address of interrupt vectors
mvc b0,ISTP ; set table to point here
nop 3 ; fill delay slot
nop
nop
;
; plug unused interrupts with infinite loops to
; catch stray interrupts
;
unused 1
unused 2
unused 3
unused 4
unused 5
unused 6
unused 7
unused 8
unused 9
unused 10
unused 11
unused 12
unused 13
; interrupt14 (TIMER0)
mvkl _mig,b0 ; load destination function address to b0
mvkh _mig,b0
b b0 ; start branch to destination function
nop 5
unused 15
than you need to define in your program section to place to
example
;
; Copyright 2004 by me :-)
; All rights reserved. Property of me :-)
; Unrestricted rights to use, duplicate or disclose this code
;
; ======== initblink.asm ========
;
; LEDs blinking in various types
;
.global _initblink
.sect ".text"
an you need define .cmd file
/*
* Copyright 2001 by Texas Instruments Incorporated.
* All rights reserved. Property of Texas Instruments Incorporated.
* Restricted rights to use, duplicate or disclose this code are
* granted through contract.
*/
/*
* ======== volume.cmd ========
*
*/
MEMORY
{
SDRAM : origin = 0x80000000, len = 0x400000
CPURAM : origin = 0x00000000, len = 0x10000
}
SECTIONS
{
.vectors > CPURAM
.text > CPURAM
.bss > CPURAM
.cinit > CPURAM
.const > CPURAM
.far > CPURAM
.stack > CPURAM
.cio > CPURAM
.sysmem > CPURAM
}
THE MOST IMPORTANT
in the zeroth vector should be jump to your code - see vectors file
in my case it is "_initblink"
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