What version supports the motorola 6811 (if any)?

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What version supports the motorola 6811 (if any)?

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Old8Bit
Contributor I

From an earlier post I learned that codewarrior started with the HC11 processor... I now have (2) more questions:

1. I know that HC08 does not refer to the 6808 but does HC11 refer to the 6811?  Some of my internet searches appear to imply that it does but I'm not sure... especially since HC08 is not the same as the 6808.

2. If HC11 does mean 6811, does the most recent version of CodeWarrior still support the 6811 or do I need to go to an older version.

 

Thanks so much!

Tim

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Lundin
Senior Contributor IV

The family name is 68HC11. HC11 or 6811 would be shorter versions of the same thing... but nobody uses 6811 when referring to this MCU.

 

I suspect you will have to find some very old version of Metrowerks Codewarrior for HC11. Metrowerks were bought by Motorola/Freescale somewhere around 1999 and absorbed into Freescale over the following years. At the same time they stopped supporting a whole lot of CPUs/MCUs. I started using Codewarrior in 2002 and I don't remember seing any HC11 support even back then.

 

Are you looking for assembler or C?

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Lundin
Senior Contributor IV

The family name is 68HC11. HC11 or 6811 would be shorter versions of the same thing... but nobody uses 6811 when referring to this MCU.

 

I suspect you will have to find some very old version of Metrowerks Codewarrior for HC11. Metrowerks were bought by Motorola/Freescale somewhere around 1999 and absorbed into Freescale over the following years. At the same time they stopped supporting a whole lot of CPUs/MCUs. I started using Codewarrior in 2002 and I don't remember seing any HC11 support even back then.

 

Are you looking for assembler or C?

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Old8Bit
Contributor I

Thanks!  Just looking to do some assembly lang.  Strange how the HC08 is not the 6808 but the HC11 is the 6811!

tim

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rocco
Senior Contributor II

 

Hi Tim,

Old8Bit wrote:

Strange how the HC08 is not the 6808 but the HC11 is the 6811!


 

From someone who was there, it's not that strange. The 6808 was from the late '70s, and the 68HC08 was from the late '90s. By the time they created the HC08 family, no one at Motorola remembered the there even was a 6808.

 

The 6811, on the other hand, was much later (I think early '90s?) and evolved into the high-speed-cmos process, becoming 68HC11. The same thing occurred with the 6805, with it becoming the 68HC05.

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rocco
Senior Contributor II

Hi Tim,

 

I looked around for what the appropriate cross-assembler would be, and I think that Motorola's assemblers for the HC11 are AS11, AS6811 and ASHC11. They are DOS programs that predate both CodeWarrior and its predecessor, MCUez. Old.

 

It looks like there are a lot of HC11 resources, including AS11, available here:

http://www.mil.ufl.edu/4744/software_hc11.html

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Old8Bit
Contributor I

Thanks Rocco!        Great Link.  

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