-----Original Message----- From: wd@denx.de [mailto:wd@denx.de] Sent: Tuesday, 02 May 2006 12:01 PM To: Alan J. Luse Cc: u-boot-users@lists.sourceforge.net Subject: Re: [U-Boot-Users] [PATCH] Read DS1306 RTC Seconds First

In message <5642B638DBEF6A4DBF9E9BC68144866D0276A427@tamail1.timeamerica. com> you wrote:

...

Read DS1306 RTC seconds first to latch reading and maintain

integrity.

Your patch description does not match the content. You talk about reading, but modify the writing code.

And I think writing the seconds first is actually worse than the current code. Please explain what you really are trying to fix.

Best regards,

Wolfgang Denk

Wolfgang-

My mistake; there's a Linux driver that does the read backwards and I got them confused. Maxim/Dallas does in fact specify that the seconds should be written first; I quote:

"The internal time and date registers continue to increment during write operations. However, the countdown chain is reset when the seconds register is written. Writing the time and date registers within one second after writing the seconds register ensures consistent data."

I have reworded the patch description and resubmit it as attached.

Alan J. Luse Embedded Systems Engineer Time America, Inc.