Re: TI-H: diskdrive 2 calc


[Prev][Next][Index][Thread]

Re: TI-H: diskdrive 2 calc




>> Most likely if you aren't using a controller you will probably need to time
>> things exactly on the dot or else it will fall apart.  Like serial.
>>
>> I could whip up an AVR that did it fine in 10 minutes.  The problem with
>> the PIC is that it is literally 4 times slower than the AVR.
>>
>> 1 instruction cycle on an 8MHz AVR is 125ns.  1 instruction cycle on an
>> 8MHz PIC is 500ns.
>
>So.... if he wants to use a PIC, let him. PICs can go much higher than 8
>MHz, as AVRs probably can also. The PIC16C67, for example, is rated to 20
>MHz. I believe there are several models which can go to 33 MHz.

I never said not to use a pic.  I said he might end up with some trouble
when it comes to timeing things exactly.  Its fun using the PIC, but only
if its possible.



References: