| ??? 01/31/05 17:41 Read: times |
#86213 - Why not use the UART? Responding to: ???'s previous message |
Stephen Harris said:
Is it possible to use transmit serial data over one bit of port one. Of course it is - you just need to write software that switches the required bit between '1' and '0' with the appropriate timing... But why not just use the 8051's UART? If you're already using the UART for something else, why not use a variant with two UARTs?! For more info, search for "Soft UART" or "Software UART" I understand that P1 can be used for parallel data but i want to use just P1.1 or P1.2 etc for serial transmission. Is it possible to use PCON ? PCON controls the 8051 Serial Port (UART) - if you're using P1 pins instead of the Serial Port, then PCON is of no use to you for that! |
| Topic | Author | Date |
| P1 serial data | 01/01/70 00:00 | |
| Why not use the UART? | 01/01/70 00:00 | |
| Pin 10 and 11 | 01/01/70 00:00 | |
| back to basics | 01/01/70 00:00 | |
| OK | 01/01/70 00:00 | |
| will cost you anyhow | 01/01/70 00:00 | |
| Already Have | 01/01/70 00:00 | |
| What kind od serial data | 01/01/70 00:00 | |
| Type of data | 01/01/70 00:00 | |
| RTFM | 01/01/70 00:00 | |
| Wrong end of stick! | 01/01/70 00:00 | |
| Serial | 01/01/70 00:00 | |
| still unspecific | 01/01/70 00:00 | |
| ROM | 01/01/70 00:00 | |
| a ROM can not map anything | 01/01/70 00:00 | |
| End of wrong stick! | 01/01/70 00:00 | |
| Mystery? | 01/01/70 00:00 | |
| its still a mystery | 01/01/70 00:00 | |
| Module | 01/01/70 00:00 | |
| not yet | 01/01/70 00:00 | |
| UART is not a good choice | 01/01/70 00:00 | |
| Manchester | 01/01/70 00:00 | |
| You didn't get it, but that's OK | 01/01/70 00:00 | |
| The Stick! | 01/01/70 00:00 | |
| OK | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 | |
| Extra UART needed? | 01/01/70 00:00 | |
| Wires? Grounding?? | 01/01/70 00:00 | |
| uC to RF module interface wires | 01/01/70 00:00 | |
| disconnect the MAX232 | 01/01/70 00:00 | |
It looks like a straight tranceiver | 01/01/70 00:00 |