At 08:43 AM 9/23/99 +1000, Dennis Plunkett wrote:
>At 14:15 22/09/99 -0700, you wrote:
>>On Wed, 22 Sep 1999 19:57:53 +0100, you wrote:
>>
>>>Can anyone please help, I need to upload and execute the following srecord
>>>into a M68HC11.
>>>
>>>I believe it must first be converted into binary format,is this correct ?
>>>
>>>Second how do I get it to execute ?
>>>
>>>S105B6007E00AD
>>>S105B601E8007B
>>>S105B602510042
>>>S105B6701B58
>>>S105B674EFF3
>>>S105B676DCBA
>>>S105B6800000
>>>S105B6810000
>>>S105B6820000
>>>
>>>--
>>>Regards,
>>>Simon
>>
>>Hi Simon!
>>Its been a while since I've messed with MOTs processors but here
>>goes...
>>No you do not have to convert it to anything but what you have.  This
>>is a standard "S" record.  There should me some form of monitor rom on
>>the system that you are uploading it to.  Most of the motorola stuff
>>is loosely based on the old MIKBUG of the original 6800 days.  Usually
>>a "L" command followed by the ascii "S" record.  The "S" record is
>>followed by a "S9" record that indicates "End of transmission".  The
>>old monitors I used had a "J" command followed by a 4 hex digit
>>address.  This would commence execution at that address.
>>
>>You might check the motorola web sites and look for monitor reference
>>info.  There are several for the HC11.
>>
>>Best regards
>>Dave Duley
>>
>>
>
>
>Not quite so,
>The HC11 has an internal boot loader sequence that is entered into at reset
>with the conditions of MODA and MODB. The Srecord in this case is loaded
>into the first 256 bytes of RAM only. If this is a bootloader for more
>code, the frist block must be an exec file to load the bytes above and
>beyond the first 256.
>
>All that aside youre file seems to be missing some bytes. Anyway you will
>find bootloader stuff in the big HC11 book. Note that these boot loadres
>are for loading larger files!, but it will give you the basic idea on what
>is required, just remember your file size, of course you can have more RAM
>and use that too!
>
>Now the file is loaded byte by byte until 256 bytes are loaded (At which
>time the processor will reset and execuite from 0000 (Default bootloader
>reset vector (See the stuff on interrupts and vectors)). As for the file,
>yep binary for the bootloader only (The examples are for S-record in the
>extended code, but you may use binary)
>
>But why a HClemon? Why not a good functional processor like a nice PIC,
>AVR, 8051, perhaps one of them 4004 would be better for your purpose...
><VBG> ->(Huge in fact)
>
>Dennis
>
Sorry for the delay in adding my bit, but downloading code to HC11's is
quite easy.  I have, and will be happy to supply to anyone interested,
a MS-DOS program for downloading S records.  This program supplies its
own boot block code, does verification, etc.  If there is much demand
I will put it up on a web site.

Bob