| ??? 09/29/05 18:14 Read: times |
#101739 - MT8870 & MAX232 Compatibility!!! |
Hi all members
In my new project i have used of both MT8870(DTMF detector) And MAX232(serial interface chip) While serial cable isn't attached MT8870 works proper But whenever the cable is connected to the board MT8870 doesn't work and it can't detect any tone? Do any body know what is root of this problem!! Thanks Reza |
| Topic | Author | Date |
| MT8870 & MAX232 Compatibility!!! | 01/01/70 00:00 | |
| Ground | 01/01/70 00:00 | |
| Unanimous! | 01/01/70 00:00 | |
| Earthing! | 01/01/70 00:00 | |
| Thanks! | 01/01/70 00:00 | |
| DAA for MT8870 | 01/01/70 00:00 | |
| Thanks Ijaz | 01/01/70 00:00 | |
| Schematic! | 01/01/70 00:00 | |
| To Ijaz | 01/01/70 00:00 | |
| Re: Schematic | 01/01/70 00:00 | |
| Thanks! | 01/01/70 00:00 | |
| Another Question! | 01/01/70 00:00 | |
| The answer is obvious! | 01/01/70 00:00 | |
| Erik,Andy,Ijaz,Russell | 01/01/70 00:00 | |
| Transformer in DAA | 01/01/70 00:00 | |
| Transformer in DAA | 01/01/70 00:00 | |
| Is relay a good choice! | 01/01/70 00:00 | |
| sure, but what would that accomplish? yo | 01/01/70 00:00 | |
| You'll need something like this : | 01/01/70 00:00 | |
| Thanks, | 01/01/70 00:00 | |
| congratulation! | 01/01/70 00:00 | |
| I have used this way too,Reza! | 01/01/70 00:00 | |
similar | 01/01/70 00:00 |