| ??? 06/01/03 06:17 Read: times |
#47155 - RE: serial communication with AT89C2051 Responding to: ???'s previous message |
Yeah i did figure that out and started using timer 1.
but the pc is still not respond. i wrote a program to send a single string with some delay. i am able to see flickring on the txd pin if i connect a led to it. but using a max232 chip i am still not able to send anything to the pc. the initialisation routine is given below INIT clr TR1 ;stop timer 1 mov TH1,#0FAH ;256-6: 9600 baud mov TL1,#0FAH anl TMOD,#0FH ;Timer1: 8 bit auto- reload orl TMOD,#20H setb TR1 ;start timer mov SCON,#50H ;InitRS232 setb TI orl PCON,#80H ;SMOD=1 is there something wrong. this routine is working fine on the 89s8252 with a 11.0592MHz crystal. vinod |
| Topic | Author | Date |
| serial communication with AT89C2051 | 01/01/70 00:00 | |
| RE: serial communication with AT89C2051 | 01/01/70 00:00 | |
| RE: serial communication with AT89C2051 | 01/01/70 00:00 | |
| RE: serial communication with AT89C2051 | 01/01/70 00:00 | |
| RE: serial communication with AT89C2051 | 01/01/70 00:00 | |
| RE: serial communication with AT89C2051 | 01/01/70 00:00 | |
| RE: serial communication with AT89C2051 | 01/01/70 00:00 | |
| RE: serial communication with AT89C2051 | 01/01/70 00:00 | |
| RE: serial communication with AT89C2051 | 01/01/70 00:00 | |
| still not sucessful | 01/01/70 00:00 | |
| RE: serial communication with AT89C2051 | 01/01/70 00:00 | |
| RE: serial communication with AT89C2051 | 01/01/70 00:00 | |
| RE: serial communication with AT89C2051 | 01/01/70 00:00 | |
Try this code | 01/01/70 00:00 |



