| ??? 03/25/05 01:45 Read: times |
#90390 - Disabling DS1337 alarm Responding to: ???'s previous message |
Craig:
Craig said:
If I remember correctly, the initial state of the RTC registers is undefined. No...Craig, page 10 of datasheet said that A1IE and A2IE are disabled (logic 0) when power is first aplied. Craig said:
My application needs to read the status register to determine if an alarm has occurred. In my opinion, that is the problem, or your "error"....... why not to determine if the alarm has ocurred, reading the INTA/INTB output/s, I think, that the DS1337 was designed to disable the alarms by this way, unless you want to determine if an alarm has ocurred while your system was in "power off"...but this has no sense at all, so I insist...am I understanding your point ? or you're trying to do some incorrect use of chip. Sorry perhaps ...I can't transmit very exactly what I mean in English...hope you understand this. Best Regards. Alberto. |
| Topic | Author | Date |
| Disabling DS1337 alarm | 01/01/70 00:00 | |
| DS1337 alarms | 01/01/70 00:00 | |
| Disabling DS1337 alarm | 01/01/70 00:00 | |
| Disabling the alarms | 01/01/70 00:00 | |
| Disabling DS1337 alarm | 01/01/70 00:00 | |
Yes and no | 01/01/70 00:00 | |
| Stopping Alarms | 01/01/70 00:00 | |
| Forget that | 01/01/70 00:00 | |
| Yes it is confusing | 01/01/70 00:00 |