Hi jinx

I see you mentioned the 68HC705..

I've got about thirty lovely small pcb's driven by 68HC70508 's. Three
serial ports, I/O on gal's, I2C..
Anyway, I've looked up the motorola chips, and can't seem to find anything
that I can upgrade the OTP's to flash with. So best to pull the 232 chips
out and trash them?

Is there a MC68.. chip that you are aware of that I could use.


Regards
Roland

y chips

>> straight  forward way without using macros, I have achieved
>> code that is readable, maintainable, and performs as it was
>> designed to do, and everyone is happy
>
>And you can't argue with happy ;-)
>
>Just to be clear, no one would get on a high horse trying to tell you
>that you don't know what's good for you. I have a comfort zone too.
>The major benefits for me using macros are (1) reduces typos
>(2) quicker to write code and (3) no or less time spent debugging
>sections that are done deals (IF you have been careful)
>
>I find _simple_ macros particularly useful. MOVFW for example
>
>movfw    macro   litval
>         movf    litval,w
>         endm
>
>I have been known to type something like movf temp,f when I meant
>movf temp,w. We've all done it. It's very very easy to overlook this
>during debugging. Using movwf temp is much more informative from
>that point of view. As a result I now spend more time optimising
>functionality (which is important) rather than looking for typing errors
>(which is annoying and always ends up with a self-kicking). And that
>makes ME happy ;-)
>
>> As far as 'EQU' and 'DEFINES' are concerned, I use them all the
>> time.  I wouldn't write a program unless I did.  Unless it was very
>> small, but then again ?
>
>I have some small 68HC705 test programs, very old code, pre-PIC,
>that I didn't bother to use defines for. As part of a HDD clean-up last
>week I looked through them. Hardly had a clue what they were for
>
>           bset 4,0
>           nop
>           bclr 4,0
>           nop
>           bclr 1,0
>           nop
>           bset 1,0
>
>Hmmm, what did that do again ? Up to the port comments, down
>to the code, up to the comments for the next lot..........
>
>If I'd originally defined them as reset4040 and clock4040 I'd have
>saved 10 minutes last week. It's all so obvious when you're in the
>groove, but don't see it for a while and you'd be just as clueless
>as anyone
>
>But I think I'm flogging a dead (high) horse ;-)
>
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