| ??? 12/30/04 16:48 Read: times |
#84120 - Polling/Interrupt For Serial Input |
I need to take 4800 bauds serial input from Port 1 pin 0, so I need to do either polling or interrupt based.
I have tried to use Time 0 overflow interrupt, whenever that interrupt is called I take the value from P1^0 and put it in the character, do it for 8 times until the character is complete, skip the start bit and stop bit. The problem is that thing only works for almost 55-60 % and rest values are garbage. If any one can advise a better method to take serial input from single parallel port pin, I will be really grateful. Regards Naveed |
| Topic | Author | Date |
| Polling/Interrupt For Serial Input | 01/01/70 00:00 | |
| bible time | 01/01/70 00:00 | |
| Soft UART | 01/01/70 00:00 | |
| Hardware? | 01/01/70 00:00 | |
| SW UART is not a taboo! | 01/01/70 00:00 | |
| yes... | 01/01/70 00:00 | |
| think before you do | 01/01/70 00:00 | |
| Use oversampling | 01/01/70 00:00 | |
| soft UART | 01/01/70 00:00 | |
| Half bits | 01/01/70 00:00 | |
| Oversampling | 01/01/70 00:00 | |
| It's not so bad | 01/01/70 00:00 | |
| Oh yes it is! | 01/01/70 00:00 | |
| Haven't read it completely? | 01/01/70 00:00 | |
| neither have I | 01/01/70 00:00 | |
| Sure you did not! | 01/01/70 00:00 | |
| did I miss it | 01/01/70 00:00 | |
| Problem displaying posts? | 01/01/70 00:00 | |
| sure that will work | 01/01/70 00:00 | |
| NOT A PIC | 01/01/70 00:00 | |
| Just forget 89c51 then. | 01/01/70 00:00 | |
| @Erik | 01/01/70 00:00 | |
| ...all said already. | 01/01/70 00:00 | |
| OS? Threads?! | 01/01/70 00:00 | |
| Appnote to read | 01/01/70 00:00 | |
| threads | 01/01/70 00:00 | |
Problem Solved | 01/01/70 00:00 |