| ??? 08/06/05 11:01 Read: times |
#98925 - no free ALE possible ! Responding to: ???'s previous message |
Abhishek Singh said:
i want to free the ALE signal.
The ALE can not be used as general IO port, so threre is no possibility to use it for other purposes as a clock output. On using ALE to fire the DS1232, it works as a pure reset circuit without any watchdog function. Thus I use on my boards always the MAX813L / SP813L watchdog + reset circuit. During software developing it can be simple disabled by a jumper. Peter |
| Topic | Author | Date |
| Feeding the DS1232 Dog | 01/01/70 00:00 | |
| Why? | 01/01/70 00:00 | |
| Exixsting Board | 01/01/70 00:00 | |
| That makes mr REALLY curious, what reaso | 01/01/70 00:00 | |
| Exixsting Board | 01/01/70 00:00 | |
| no free ALE possible ! | 01/01/70 00:00 | |
| but it does not need to be if the purpos | 01/01/70 00:00 | |
| the reason what you dont beleave... | 01/01/70 00:00 | |
| but ALE is "just" ALE, not a GPIO, pleas | 01/01/70 00:00 | |
| my plans | 01/01/70 00:00 | |
| Use a buffer if using a XTAL | 01/01/70 00:00 | |
| wave forms | 01/01/70 00:00 | |
| Not trivial... | 01/01/70 00:00 | |
| Thanks Kai...... | 01/01/70 00:00 | |
| conclusion | 01/01/70 00:00 | |
| What exactly goes wrong? | 01/01/70 00:00 | |
| here is whats go wrong | 01/01/70 00:00 | |
| Ground bounce! | 01/01/70 00:00 | |
| Another board is only solution | 01/01/70 00:00 | |
| 3 or 4 Pin Supervisor is also a solution | 01/01/70 00:00 | |
| Pronouncing | 01/01/70 00:00 | |
| Prahlad and Kai | 01/01/70 00:00 | |
Communication Failure. | 01/01/70 00:00 |