[Elecraft] Re: RTC Question (February 31st)

[Wayne Burdick]

Francis Belliveau wrote:

> While I was trying to set the date, the display
> frequently changed to F0.91; I'm wondering what that meant?

Hi Fran,

You just discovered an obscure feature of the KAF2 firmware that I
neglected to document in the KAF2 manual: if you set the date to
February 31st (any year), the RTC display will show the KAF2
micrcontroller's firmware revision. (We picked this invalid date because
we assumed it would never be used during normal date setting, but your
RTC chip apparently came up with it somehow.) You saw "F0.91" which
means revision 0.91, the current production revision. KAF2 PICs with
this revision of firmware may actually be labeled "1.00".

I'll add this to the next rev of the KAF2 manual.

Thanks,
Wayne
N6KR