| ??? 03/01/09 06:51 Read: times |
#162962 - Even with !CS == 1 ?? Responding to: ???'s previous message |
I want to ask a silly question...have you verified by direct measurement that the P2.5 operations you are performing are actually getting to the physical RTC part?
If not I would strongly suggest that you use an oscilloscope to verify this. It may even be helpful to make a very simple test program that does nothing but toggle the rtcce bit using the same definitions and syntax as your RTC program and use that in conjunction with the oscilloscope measurement. Michael Karas |
| Topic | Author | Date |
| RTC DS12c887 Chip select | 01/01/70 00:00 | |
| WHY ON EARTH | 01/01/70 00:00 | |
| with the help of Xbyte or XDATA | 01/01/70 00:00 | |
| Speaking the Truth....... | 01/01/70 00:00 | |
| I don't see | 01/01/70 00:00 | |
| what you said is true. but there is another | 01/01/70 00:00 | |
| Even with !CS == 1 ?? | 01/01/70 00:00 | |
| I have done that before posting this thread! | 01/01/70 00:00 | |
| How fast multimeter | 01/01/70 00:00 | |
| actually.. | 01/01/70 00:00 | |
| I just saw it | 01/01/70 00:00 | |
| then I am in real trouble | 01/01/70 00:00 | |
| replace the XBYTE with ... | 01/01/70 00:00 | |
| sorry but... | 01/01/70 00:00 | |
| or | 01/01/70 00:00 | |
| Play with the ports | 01/01/70 00:00 | |
| thank god | 01/01/70 00:00 | |
| sorry I could not reply due to my ill health | 01/01/70 00:00 | |
| it is | 01/01/70 00:00 | |
and Erik one last.. | 01/01/70 00:00 |