| ??? 02/04/08 11:04 Modified: 02/04/08 11:09 Read: times |
#150299 - Crying wolf Responding to: ???'s previous message |
Jecksons Ben said:
I'm bulding this system
SHT-75------AT89S52---1 wire network I think I may have been a bit hasty? Possibly Jan too? Unfortunately, your posts have gained a reputation for "shooting from the hip" not having done basic research, and/or rejecting anything that doesn't precisely match your specific situation. Can someone tell me where to get 1 wire protocol core for AT89S5X? In this case, are you saying that you need the AT89S52 to be a Slave on the 1-Wire bus? Your post is not clear on this. The protocol is clearly defined on the Maxim website, and you do really need to start by reading the 2 key documents that I cited earlier. However, it is true to say that the stuff on the Maxim site is (almost) entirely focussed on implementing a 1-Wire Master. Having said that, given the protocol definition, and Master examples, it should not be hard to implement aSlave. Alternatively, you could use a DS2408 as the 1-Wire slave to provide a parallel interface to your AT89S52... Update: The Maxim Website said: (my emphasis).
The DS2408 is an 8-channel, programmable I/O 1-Wire chip ... A data-valid strobe output can be used to latch PIO logic states into external circuitry such as a microcontroller data bus. See the Datasheet for an example... |
| Topic | Author | Date |
| 1-wire protocol with AT89S5X | 01/01/70 00:00 | |
| It's all here | 01/01/70 00:00 | |
| Crying wolf | 01/01/70 00:00 | |
| 1-wire Slave | 01/01/70 00:00 | |
| Re: Some of the timing may be to tight to bit bang | 01/01/70 00:00 | |
| Like I2C | 01/01/70 00:00 | |
| Like I2C! | 01/01/70 00:00 | |
| read the @#$%^ website! | 01/01/70 00:00 | |
| Who says those are 1 wire stuff??? ben | 01/01/70 00:00 | |
| but is sensirion a 1-wire device? | 01/01/70 00:00 | |
| this one is - read the @#$%^ webpage | 01/01/70 00:00 | |
| Which one ? SHT7x_ has 2 pins DATA ,SCK . | 01/01/70 00:00 | |
| No, it isn't | 01/01/70 00:00 | |
| ok, then... | 01/01/70 00:00 | |
| AH, now I see | 01/01/70 00:00 | |
| Yes, it's unclear | 01/01/70 00:00 | |
| Why should we speculate ? Why shouldnt JBJ clarify | 01/01/70 00:00 | |
| Sorry for late response..... | 01/01/70 00:00 | |
| Slave code is not published | 01/01/70 00:00 | |
| Other 1-Wire Interfaces... | 01/01/70 00:00 | |
| Others | 01/01/70 00:00 | |
sorry late reply..give up | 01/01/70 00:00 |