> I'm new to the TI BIOS & DSP's.
>
> I need a function that warm or cold reboots the processor.
>
> I think I should be able to do this using SYS_exit offered
> by the BIOS but I'm a little fuzzy on the details.
SYS_exit() calls a function that you can define. The default TI function is
UTL_halt(), which if I recall correctly
just spins (does nothing). You can change this function; i.e. call a function
that does something.
But none of that will cause a reset.
Some of the C5000 series devices had a RESET instruction that would reset some
registers (not all) and cause a warm
restart. But I don't think C67x has this, and also C67x devices don't
have an onchip ROM bootloader. Jumping to the
Reset vector isn't going to reset any registers, so you probably need some
way to actually pull on the Reset line.
Richard's ideas are good.
-Jeff
_____________________________________
Reply by Richard Williams●January 25, 20122012-01-25
Tom,
depending on the underlying DSP...
You can force a watchdog reset event by sending the wrong sequence to the
watchdog I/O.
caveat: the watchdog has to be enable.
You can tie one of the GPIO, set as an output during initialization, to the
DSP
reset line,
Then toggle it LOW to force a DSP reset event.
You can jump to the reset vector for a warm re-boot
If the BIOS has a 'reset' entry point, you can call that entry
point.
There are several other methods that can/will force a DSP reset.
R. Williams
---------- Original Message -----------
From: "Tom"
To: c...
Sent: Wed, 25 Jan 2012 19:05:26 -0000
Subject: [c6x] Looking for Ideas on how to warm/cold reset a C67XX via on-board
SW
> Hi All,
> I'm new to the TI BIOS & DSP's.
>
> I need a function that warm or cold reboots the processor.
>
> I think I should be able to do this using SYS_exit offered by the BIOS
> but I'm a little fuzzy on the details.
>
> Tom ------- End of Original Message -------
_____________________________________
Reply by Tom●January 25, 20122012-01-25
Hi All,
I'm new to the TI BIOS & DSP's.
I need a function that warm or cold reboots the processor.
I think I should be able to do this using SYS_exit offered by the BIOS but
I'm a little fuzzy on the details.