| ??? 02/04/10 05:52 Read: times |
#172882 - pull up on ds1307 sqwout Responding to: ???'s previous message |
i was able to solve the problem by using pullup resister on pin 7 sqwout of DS1307 . i also had to clear CH bit on seconds 00h resister. Now iam getting
1 Hz output frequency . With this iam now sure that my i2c write routine is correct. Now i will proceed further with RTC. anil |
| Topic | Author | Date |
| problem with ds1307 andi2c | 01/01/70 00:00 | |
| Did you provide a resistor... | 01/01/70 00:00 | |
pull up on ds1307 sqwout | 01/01/70 00:00 | |
| Pullup resistor size... | 01/01/70 00:00 | |
| clock halt bit? | 01/01/70 00:00 | |
| ds1307 and i2c problem | 01/01/70 00:00 | |
| A 10MHz analog scope is fine for 100kHz i2c | 01/01/70 00:00 |