Re: nanopi/allwinner i2c not working.
Daniel Braniss <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.arm |
|---|---|
| Message-ID | <[email protected]> |
> On 7 Oct 2020, at 11:59, Andriy Gapon <[email protected]> wrote: > > On 07/10/2020 11:33, Andriy Gapon wrote: >> Perhaps the problem is on the device's side? > >> From here https://www.nxp.com/docs/en/user-guide/141520.pdf > § 6.2.4 > However, it may happen that the PN532 does not acknowledge its own address > immediately after having finished a previous exchange. > > So, perhaps an application level delay is needed? > I am not really familiar with the device and its communication protocol details, > so maybe I am talking nonsense. there is some black magic involved here :-) i’ll try putting someday, and some other stuff. btw, I have a dtsoto enable the 2nd. 2c but now Isee that the ‘official’ one is different, can you priced me with a correct one? and is there a way to lower the i2c speed? thanks, and it’s back to the drawing board for me. danny > > -- > Andriy Gapon _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-arm To unsubscribe, send any mail to "[email protected]"