On Fri, Mar 20, 2020 at 20:05:20 +0530, Pankaj Bansal wrote: > From: Pankaj Bansal <pankaj.ban...@nxp.com> > > Add comments to explain the register read and write operation > on Ds1307. These comments have been referred from data sheet: > > https://datasheets.maximintegrated.com/en/ds/DS1307.pdf > > Signed-off-by: Pankaj Bansal <pankaj.ban...@nxp.com>
Reviewed-by: Leif Lindholm <l...@nuviainc.com> > --- > Silicon/Maxim/Library/Ds1307RtcLib/Ds1307RtcLib.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/Silicon/Maxim/Library/Ds1307RtcLib/Ds1307RtcLib.c > b/Silicon/Maxim/Library/Ds1307RtcLib/Ds1307RtcLib.c > index fd7a8696e405..444e01124811 100644 > --- a/Silicon/Maxim/Library/Ds1307RtcLib/Ds1307RtcLib.c > +++ b/Silicon/Maxim/Library/Ds1307RtcLib/Ds1307RtcLib.c > @@ -28,6 +28,11 @@ STATIC EFI_I2C_MASTER_PROTOCOL *mI2cMaster; > > /** > Read RTC register. > + Data Read-Slave Transmitter Mode > + > + <Slave Address> <Word Address (n)> <Slave Address> <Data(n)> <Data(n+1)> > <Data(n+2)> <Data(n+X)> > + > + The first byte is received and handled as in the slave receiver mode. > > @param RtcRegAddr Register offset of RTC to be read. > > @@ -69,6 +74,9 @@ RtcRead ( > > /** > Write RTC register. > + Data Write-Slave Receiver Mode > + > + <Slave Address> <Word Address (n)> <Data(n)> <Data(n+1)> <Data(n+X)> > > @param RtcRegAddr Register offset of RTC to write. > @param Val Value to be written > -- > 2.17.1 > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#56760): https://edk2.groups.io/g/devel/message/56760 Mute This Topic: https://groups.io/mt/72077431/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
