| ??? 11/18/09 04:08 Read: times |
#170921 - Stopped oscillator? Responding to: ???'s previous message |
If you have transfer errors, you can manage to set the bit 7 of register 0, which results in the clock oscillator being stopped. Without oscillator, it will not count any time.
A robust program should try to count time in more than one way to detect if something is wrong. If the 8051 ticks time while you don't get the RTC interrupt within the expected time then your program knows that something is wrong. |
| Topic | Author | Date |
| RTC problem | 01/01/70 00:00 | |
| According to the RTC datasheet... | 01/01/70 00:00 | |
| what's there in place | 01/01/70 00:00 | |
| My past experience with RTC | 01/01/70 00:00 | |
| Kiran is right... | 01/01/70 00:00 | |
| new problem | 01/01/70 00:00 | |
| Stopped oscillator? | 01/01/70 00:00 | |
| It will help if | 01/01/70 00:00 | |
This could be the reason... | 01/01/70 00:00 | |
| @ kiran,munish | 01/01/70 00:00 | |
| Minimize I2C activity | 01/01/70 00:00 | |
| One step further | 01/01/70 00:00 |