| ??? 01/10/05 15:27 Read: times |
#84669 - parity and stop Responding to: ???'s previous message |
My problem is on the UART configuration. MODBUS requires to set the parity bit and to use 2 STOP bits. I havn't found in datasheets how to configure the 8051 UART do to this ?
Is it possible to configure parity and stop bits on the hardware UART ? The 9 bit modes gives you parity if 8+p, or second stopbit if 7+p. If 8+p start a 1 bit time timer at TI to achieve the extra stop bit (stop and idle is the same). In that case beware, if you have a derivative with double buffered SBUF (I do not recall which, but do recall that such exist) Erik |
| Topic | Author | Date |
| MODBUS on UART (parity & stop bits?) | 01/01/70 00:00 | |
| parity and stop | 01/01/70 00:00 | |
| parity and stop | 01/01/70 00:00 | |
| 2 Stop Bits | 01/01/70 00:00 | |
| stop bit | 01/01/70 00:00 | |
| Beware - early ti/ri flags! | 01/01/70 00:00 | |
Modbus | 01/01/70 00:00 |