Hello,
On Fri, 8 Nov 2019, Aleksandar Markovic wrote:
[c] DS3231 also has programmable square-wave output + 32 KHz output pin.
M41T80 chip also supports this feature. However, qemu does not support
emulation of these features [2]. Do I take the same approach ?
Hi, Rajath.
I would rather have you amend M41T80, if there is a missing functionality.
cc-in Zoltan the creator of M41T80 emulation, for his opinion.
The missing functionality (such as alarm timer, if I remember correctly)
could be added, but I did not bother to fully implement it because the
clients I was interested in only used the RTC part, so current
implementation is sufficient for that. Not sure if anything would use the
missing features but it would be nice to fully implement the chip.
I'm not sure what you plan to use DS3231 for but if clients only use part
of the functions then maybe implementing those first might be enough but
if you have time to correctly implement everything then that's probably
even better.
If you or someone else is still looking for a relatively easy device to
implement I have this:
https://osdn.net/projects/qmiga/wiki/SubprojectMac99I2C
The difficulty in that is that it has no docs but only open source drivers
to figure out how it works but if someone likes a challenge it may improve
mac99 emulation.
Regards,
BALATON Zoltan
