| ??? 02/17/04 21:53 Read: times |
#64974 - Stop Bits - dont worry! Responding to: ???'s previous message |
- it receives 9th bit which is first stop bit: if it is not "1" then reception will be drop;
- Frame Error feature detects second stop bit: if it is not "1" then it sets FE bit to indicate that stop bit (in our case it is SECOND stop bit) is invalid; This is not necessary! "1 Stop Bit" is simply a minimum specification that the UART needs to see. You have to have at lease some minimum "stop" time, so that the UART can then see the transition at the beginning of the next Start bit! The Stop bit is at the line idle state, so it makes no difference whether you actually have 2 stop bits, or just 1 stop bit and 1 bit-time of idle! |
| Topic | Author | Date |
| Changing serial protocol in BASIC-52 | 01/01/70 00:00 | |
| RE: Changing serial protocol in BASIC-52 | 01/01/70 00:00 | |
| RE: Changing serial protocol in BASIC-52 | 01/01/70 00:00 | |
| RE: Changing serial protocol in BASIC-52 | 01/01/70 00:00 | |
| RE: Changing serial protocol in BASIC-52 | 01/01/70 00:00 | |
| RE: Changing serial protocol in BASIC-52 | 01/01/70 00:00 | |
| RE: Changing serial protocol in BASIC-52 | 01/01/70 00:00 | |
| RE: Changing serial protocol in BASIC-52 | 01/01/70 00:00 | |
| Stop Bits - dont worry! | 01/01/70 00:00 | |
RE: Stop Bits - dont worry! | 01/01/70 00:00 | |
| RE: Changing serial protocol in BASIC-52 | 01/01/70 00:00 |