| ??? 01/14/09 22:40 Read: times |
#161515 - why is this a bad idea Responding to: ???'s previous message |
If TI is set, the serial ISR is entered. If you don't clear it, the ISR is re-entered again and again, until "main" clears TI. There is always exactly one instruction executed of "main" between consecutive interrupts. Ergo, your "main" will run incredibly slow.
http://www.8052.com/faqs/138108 JW PS. You have read Jon Ledbetter's serial pdf, havent' you? It is pointed to from http://www.8052.com/faqs/120308 . FAQs are your friends... ;-) The interrupt driven example given there is flawed (and Jon did not have time since then to correct it), but otherwise it contains quite a bit of useful information. |
| Topic | Author | Date |
| serial interrupt? | 01/01/70 00:00 | |
| Your Problem | 01/01/70 00:00 | |
| still not working | 01/01/70 00:00 | |
| you need to flag somehow the end of transmission | 01/01/70 00:00 | |
| reply to Jan | 01/01/70 00:00 | |
| Several | 01/01/70 00:00 | |
| To Hans | 01/01/70 00:00 | |
| And my reply to Charles | 01/01/70 00:00 | |
| no interrupts works | 01/01/70 00:00 | |
| the solution | 01/01/70 00:00 | |
| Isn't that what Hans said? | 01/01/70 00:00 | |
| Perfectly????? Prolly should look again. | 01/01/70 00:00 | |
| Got to look ahead... | 01/01/70 00:00 | |
| Another thing to consider | 01/01/70 00:00 | |
| reply to Andy Neil | 01/01/70 00:00 | |
| reply to Michael Karas | 01/01/70 00:00 | |
| why is this a bad idea | 01/01/70 00:00 | |
| Exactly why not perfect !!! | 01/01/70 00:00 | |
| response to Jan Waclawek | 01/01/70 00:00 | |
| interrupts forever | 01/01/70 00:00 | |
| nope | 01/01/70 00:00 | |
Re: Erik | 01/01/70 00:00 | |
| if you HAVE to mix ... | 01/01/70 00:00 |