Connecting to UF32 with P&E Multilink

Started by joss_scholten2000 October 28, 2005
I've been trying to connect to a UF32 board with the P&E micro
Multilink to the boards BDM. The multilink works fine with a C32
board I have, but no dice on the UF32.. any suggestions?



Also, I don't know if this is related or not, but the chip itself on
the evaluation board seems to be extremely hot and gets there very
quickly. I believe the manual indicates this is normal, but I just
wanted to double check.. can anyone else who has used a UF32 confirm
that it gets this hot?




'DP256s do not get hot. How much current are you pulling from your
ports and how are they configured ? (pullup, etc.)

On Mon, 2005-10-31 at 01:29 +0000, joss_scholten2000 wrote:
> Also, I don't know if this is related or not, but the chip itself on
> the evaluation board seems to be extremely hot and gets there very
> quickly. I believe the manual indicates this is normal, but I just
> wanted to double check.. can anyone else who has used a UF32 confirm
> that it gets this hot? >
>
> Yahoo! Groups Links >
--
Kim Lux, Diesel Research Inc.


Can't even BDM into it.. Not at lab so can't get voltage/current
draws.. I'll check the clock and currents tommorow.




Check that the internal voltage pins aren't
connected to the chip power supply. This has
been the cause in the past.

Regards,
Darren Moore
> -----Original Message-----
> From: 68HC12@68HC... [mailto:68HC12@68HC...] > Can't even BDM into it.. Not at lab so can't get voltage/current
> draws.. I'll check the clock and currents tommorow.




Sorry,

Can you clarify what you meant a little, I don't follow.. And this is
still an issue on the development boards? Thanks.



There's an issue with some mask-sets of the UF32 regarding a secured
device-- once they've been secured, they cannot be unsecured. (secured
HCS12 devices do not allow BDM communication).

It sounds like you've inadvertantly secured the device....

Regards,
Mark
P&E

joss_scholten2000 wrote:

>Can't even BDM into it.. Not at lab so can't get voltage/current
>draws.. I'll check the clock and currents tommorow. >
>
>Yahoo! Groups Links >
>


--

--

____________________________
*Mark L. Cukier*, /Design Engineer/
P&E Microcomputer Systems
656 Beacon Street, Floor 2
Boston, MA 02215
_________________________________
e-mail: mark@mark... <mailto:mark@mark...>
phone : (617) 353-9206 x19
fax : (617) 353-9205
_________________________________

visit us on the web at: http: //www.pemicro.com


What would lead to it being accidently secured? I just got the board,
although I'm unsure if its been used before (doing some work for a
professor), but I've done nothing except turn it on and attempt to
connect it. Thanks.



The security byte is simply a flash location... so programming this
location with a given value would secure the device. I would talk to the
professor and find out whether or not he's programmed the device-- if he
has, check out the S-Record to verify whether or not the security byte
(detailed in the UF32 user's guide) was programmed with a "secure" value.

Regards,
Mark

joss_scholten2000 wrote:

>What would lead to it being accidently secured? I just got the board,
>although I'm unsure if its been used before (doing some work for a
>professor), but I've done nothing except turn it on and attempt to
>connect it. Thanks. >
>
>Yahoo! Groups Links >
>


--

--

____________________________
*Mark L. Cukier*, /Design Engineer/
P&E Microcomputer Systems
656 Beacon Street, Floor 2
Boston, MA 02215
_________________________________
e-mail: mark@mark... <mailto:mark@mark...>
phone : (617) 353-9206 x19
fax : (617) 353-9205
_________________________________

visit us on the web at: http: //www.pemicro.com


--- In 68HC12@68HC..., "joss_scholten2000"
<joss_scholten2000@y...> wrote:
>
> Also, I don't know if this is related or not, but the chip itself on
> the evaluation board seems to be extremely hot and gets there very
> quickly. I believe the manual indicates this is normal, but I just
> wanted to double check.. can anyone else who has used a UF32 confirm
> that it gets this hot?
>

I don't know why nobody using UF32 responded to this, but I really
doubt that it is supposed to get real hot real fast. If it does not
respond it usually means one of two possibilities:

1. It got securred
or
2. It got real hot real fast (another term is fried).

Can your hot chip boil water? Does it fall within the temperature
specs of the product?