| ??? 07/06/07 08:00 Read: times |
#141541 - Please read... Responding to: ???'s previous message |
Please read and follow the instructions for posting source code - they've been given to you once already: http://www.8052.com/forum/read.phtml?id=141478
Also, please pay attention to "kHz", "MHz", etc, as also mentioned above. Prev Ravanth said:
Problem is some times it dials & sometimes it doesnot work.. Please find any bug in the code How do you know it's a bug in the code? Telephone line interfacing is a specialist area: are you sure that all your hardware is correct - including impedances, signal levels, etc. Maybe your code is working perfectly, but your hardware is just not quite right for the exchange to recognise your dialling...? Have you checked what is actually happening on the telephone line? You need to be more precise about what happens when it "doesn't work" You also need to check what happens when it does "work" - are all the timings, frequencies, levels, etc well within their specified limits (especially on the actual phone line), or are they just marginal? Also beware that there may well be legal and/or regulatory requirements for connecting equipment to the public telephone network... See, for example: http://www.8052.com/forum/read.phtml?id=132540 |
| Topic | Author | Date |
| HT 9200A somes times dials ...sometimes does not d | 01/01/70 00:00 | |
| Please read... | 01/01/70 00:00 | |
| this is suspicious | 01/01/70 00:00 | |
| You didnt' look hard enough! | 01/01/70 00:00 | |
| Consensus | 01/01/70 00:00 | |
| aaaaaah soooo, it's SPI! | 01/01/70 00:00 | |
| Jan's cprrect | 01/01/70 00:00 | |
| Toggling the Clk pin does not works. | 01/01/70 00:00 | |
Not useful | 01/01/70 00:00 |