[En-Nut-Discussion] Nut/OS 5.0 AT91 TWI RTC

Ole Reinhardt ole.reinhardt at embedded-it.de
Wed Jun 6 18:29:58 CEST 2012

Hi Harald,

> Before spending additional time on this issue, I just wanted to ask, if
> anyone else got any experience with the PCF8563 driver from the trunk,
> running on an AT91.

Yes, I'm using the driver on our eNet-sam7X board without any problems.

I tried it at least with the 4.10 release.

> I can see, that a TWI interrupt occurs, but only for TWI_TXRDY. No
> further interrupts appear, specifically TWI_TXCOMP interrupt is
> missing, which would post icb->tw_mm_mtx. In general, the
> initialization seems to work.

With the cortex M3 merge I had to change the AT91 TWI bus implementation
to provide the TWIBUS api. In general this is only some formalism and
should have no functional impact.

Which version do you test with?




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