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Author Topic: Sonnet crescendo 7200 and OS4.1  (Read 37944 times)

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Offline psxphill

Re: Sonnet crescendo 7200 and OS4.1
« on: May 19, 2018, 08:28:57 AM »
Quote from: Iggy;839499
Thanks Karlos, I must admit that I'm old enough to remember when most projects were small enough to be handled by one programmer (or a lead programmer anyway).

Source control is very useful even with one person projects.

If you give each commit a decent description then it can remind you why you did something, without having to pollute the code with extraneous comments.

It can also be used as an infinite undo buffer, of course how much you can undo at a time is limited by how often you commit. It should be an end to those head scratching sessions while "this was working last week" goes over and over in your mind, or at least it will tell you exactly what changed.

Accidentally changing a line which doesn't stop it compiling/running but changes the behaviour are also much easier to detect.
 

Offline psxphill

Re: Sonnet crescendo 7200 and OS4.1
« Reply #1 on: May 21, 2018, 09:16:14 PM »
Quote from: kev711;839572
but you can find XPC107 easily MPC107 was a ceramic chip that i havent seen used anywhere

Isn't it like XC68060 vs MC68060? Where they fix bugs in the XC and then it becomes MC when it's signed off?

"Motorola will continue to support both the Z00K21S (Rev C, i.e.
      XPC107APX66/100LC)mask revision and the new mask revision, Z02K21S.
      The Rev D XPC107 is not a drop in replacement in some designs. Thus,
      Rev C will still be offered. For any new design, Motorola strongly
      suggests customers use the rev D version.
     
      For more information, please refer to the application notes,"MPC107,
      Revision 1.3 and 1.4: Comparison and Compatibility." (AN2455/D) on
      the MPC107 product summary page on the web.

CHANGED PART IDENTIFICATION

      XPC107 product built with the Rev D mask, Z02K21S, will have a "D"
      suffix at the end of the device number (XPC107APX66LD and
      XPC107APX100LD),as opposed to the "C" suffix for the Z00K21S mask
      product (XPC107APX66C and XPC107APX100LC) Also, the device marking
      will contain "02K21S" as the mask revision. All other marking on the
      device will remain unchanged. "

The XC68060 and MC68060 were both available in ceramic, it will have "FE" on the chip. I would expect XPC107 and MPC107 to be the same.
« Last Edit: May 21, 2018, 09:23:51 PM by psxphill »