| Kai Klaas 11/20/08 07:51 Modified: 11/20/08 08:10 Read: 929 times Germany Msg Score: +1 +1 Good Question |
#160152 - Why not using an ADC with a real ... Responding to: Chaitanya Thummar's previous message |
... microcontroller/microprocessor interface?
How do you want to "read" the ICL7135 by the microcontroller? By reading the D1-D5 and B1-B8 pins in free running mode of ICL7135? Then, take care, there's no timing specifications in the datasheet. Nothing about setup and hold times, so you don't really know when to sample the B1-B8 lines. The /strobe line could be used, though. Give it to a free /INT input of your micro and code a little interrupt service routine, which reads the D1-D5 and B1-B8 lines whenever an active /INT line is detected. Don't forget to read the polarity and overrange pins, too. Kai |
| Topic | Author | Date |
| Interfacing OF ADC ICL7135 | Chaitanya Thummar | 11/19/08 23:58 |
How to interface anything to anything else  | Andy Neil | 11/20/08 02:13 |
| Why not using an ADC with a real ... | Kai Klaas | 11/20/08 07:51 |
| ADS7816 is much better | John Smith | 12/06/08 05:41 |
| Hardly... | Kai Klaas | 12/06/08 08:04 |
| Let him do his assigned task. | Richard Erlacher | 12/06/08 11:06 |
| We don't know that | Andy Neil | 12/06/08 12:40 |
| That is never the correct answer, though. | Richard Erlacher | 12/06/08 17:34 |
| probing questions are often preferable | Andy Neil | 12/06/08 18:14 |
That is not the right sort of quesiton either | Richard Erlacher | 12/06/08 23:34 |
| Almost never a best. | Per Westermark | 12/06/08 17:34 |
| Why not search first? | Richard Erlacher | 12/06/08 11:03 |