TMS320C6745 ROM Boot

Alex Savitskiy

Other Parts Discussed in Thread: TMS320C6745Hi!
I want to use internal ROM (TMS320C6745) for store my program. [DSPL2ROM o = 0x00700000 l = 0x00100000 /* 1MB L2 Internal ROM */ ]
I have to change SECTIONS in the file C6745.cmd ? How to do it ?
Boot.asm file is necessary in order to do it ?

SECTIONS
{
.text > SHDSPL2RAM
.stack > SHDSPL2RAM
.bss > SHDSPL2RAM
.cio > SHDSPL2RAM
.const > SHDSPL2RAM
.data > SHDSPL2RAM
.switch > SHDSPL2RAM
.sysmem > SHDSPL2RAM
.far > SHDSPL2RAM
.args > SHDSPL2RAM
.ppinfo > SHDSPL2RAM
.ppdata > SHDSPL2RAM

/* COFF sections */
.pinit > SHDSPL2RAM
.cinit > SHDSPL2RAM

/* EABI sections */
.binit > SHDSPL2RAM
.init_array > SHDSPL2RAM
.neardata > SHDSPL2RAM
.fardata > SHDSPL2RAM
.rodata > SHDSPL2RAM
.c6xabi.exidx > SHDSPL2RAM
.c6xabi.extab > SHDSPL2RAM
}

over 10 years ago

0 Titusrathinaraj Stalin over 10 years ago

TI__Guru** 116100 points

The given .cmd could boot from internal L2 DSP RAM.
Is it not working ?

Have you tried this .cmd in your project ?

0 Alex Savitskiy over 10 years ago in reply to Titusrathinaraj Stalin

Expert 1230 points

It is working.
But i want store my program to the internal ROM (not to the internal L2 DSP RAM).
What i must to do for this ?

0 Titusrathinaraj Stalin over 10 years ago in reply to Alex Savitskiy

TI__Guru** 116100 points

Hi Alex,
You can't access the internal ROM (its for RBL code and for users) but you can internal RAM (L1,L2,Shared RAM)

0 Alex Savitskiy over 10 years ago in reply to Titusrathinaraj Stalin

Expert 1230 points

Ok, thank you for this information.
Can i use NOR Flash M29W400DT with TMS320C6745 ?
How i must to be change SECTIONS in the file C6745.cmd (for using external flash)?

0 Titusrathinaraj Stalin over 10 years ago in reply to Alex Savitskiy

TI__Guru** 116100 points

Yes, you can use NOR flash.
Which CS pin are you used for NOR flash ?

0 Alex Savitskiy over 10 years ago in reply to Titusrathinaraj Stalin

Expert 1230 points

EMA_CS[2] pin i used for NOR flash.

0 Titusrathinaraj Stalin over 10 years ago in reply to Alex Savitskiy

TI__Guru** 116100 points

Try this.

MEMORY
{
AEMIF_CS2 org=0x60000000 len=0x02000000 /* AEMIF CS2 region */
}

SECTIONS
{
.text > AEMIF_CS2
.stack > AEMIF_CS2
.bss > AEMIF_CS2
.cio > AEMIF_CS2
.const > AEMIF_CS2
.data > AEMIF_CS2
.switch > AEMIF_CS2
.sysmem > AEMIF_CS2
.far > AEMIF_CS2
.args > AEMIF_CS2
.ppinfo > AEMIF_CS2
.ppdata > AEMIF_CS2

/* COFF sections */
.pinit > AEMIF_CS2
.cinit > AEMIF_CS2

/* EABI sections */
.binit > AEMIF_CS2
.init_array > AEMIF_CS2
.neardata > AEMIF_CS2
.fardata > AEMIF_CS2
.rodata > AEMIF_CS2
.c6xabi.exidx > AEMIF_CS2
.c6xabi.extab > AEMIF_CS2
}

0 Alex Savitskiy over 10 years ago in reply to Titusrathinaraj Stalin

Expert 1230 points

Thanks.

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TMS320C6745 ROM Boot