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Two Flash chips

2002-11-14 by Robert Yablonski

Group,

I have a 68332 on which I have two flash chips.  The first is use for 
boot.  It resides at address 0 and is chip selected by CSboot.  The second 
resides at address 0 and is selected by CS8.   I am using PROG32 to load 
the flash chips.  Boot flash load works great.  I cannot get PROG32 to 
write to the second flash.

Is there any help out there.

Robert E. Yablonski

Re: [68300] Two Flash chips

2002-11-14 by Andrei Chichak

If PROG32 is anything like PROG32S (I hope it's better, much better), you 
will have to program CSBAR8 and CSOR8 before you can access the second 
flash set on CS8. Also check CSPAR and make sure that CS8 is enabled.

Are you doing 16 bit transfers to the second flash? Is A1 on the bus hooked 
to A0 on the chips? You have to program at different addresses, they are 
shifted by a bit.

Andrei

At 10:43 AM 11/14/2002 -0800, you wrote:

Show quoted textHide quoted text

>Group,
>
>I have a 68332 on which I have two flash chips.  The first is use for
>boot.  It resides at address 0 and is chip selected by CSboot.  The second
>resides at address 0 and is selected by CS8.   I am using PROG32 to load
>the flash chips.  Boot flash load works great.  I cannot get PROG32 to
>write to the second flash.
>
>Is there any help out there.
>
>Robert E. Yablonski
>
>
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Re: [68300] Two Flash chips

2002-11-14 by Dr. David A. Perreault

Robert

The programming algorithms from P&Em in, most cases,  are configured for 
CSBOOT. If it is the same type of flash, you can make a renamed copy of 
the algorithm and change the header pasrt of the file to turn off CSBOOT 
and turn on CS8. Instructions for doing this are in a file called 32p.doc

If you have problems doing this, log on to P&E's we site 
(www.pemicro.com), go to the flash programming algorithms section and do 
a request for a programming algorithm file. There is currently no charge 
for these algorithms.

Regards
Dave Perreault

Robert Yablonski wrote:

Show quoted textHide quoted text

>Group,
>
>I have a 68332 on which I have two flash chips.  The first is use for 
>boot.  It resides at address 0 and is chip selected by CSboot.  The second 
>resides at address 0 and is selected by CS8.   I am using PROG32 to load 
>the flash chips.  Boot flash load works great.  I cannot get PROG32 to 
>write to the second flash.
>
>Is there any help out there.
>
>Robert E. Yablonski
>
>
>---------------------------------------------------
>To unsubscribe from this group, send an email to:
>68300-unsubscribe@yahoogroups.com
>
>To learn more about Motorola Microcontrollers, please visit
>http://www.motorola.com/mcu
>
> 
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ 
>
>
>
>  
>