| ??? 12/17/06 21:55 Read: times |
#129649 - Try DS89C450, AT89S2051 (qty 2) Responding to: ???'s previous message |
Hello Tomas,
Try a DS89C450 which has two serial ports and two AT89S2051 IC's. This will give you four ports total. Use parallel ports of AT89S2051 and DS89C450 to pass data to/from DS89C450. Some simple hand shakeing to coordinate data flow should take care of the logistics. You can see a block diagram at this address http://members.aol.com/cpu8052/dabasinskas.gif. Regards, Charles Bannister  |
| Topic | Author | Date |
| newbie interfacing rs232 | 01/01/70 00:00 | |
| details... | 01/01/70 00:00 | |
| re: details... | 01/01/70 00:00 | |
| Automatic serial data switch? | 01/01/70 00:00 | |
| B & B? | 01/01/70 00:00 | |
| A bit OTT? | 01/01/70 00:00 | |
| Try DS89C450, AT89S2051 (qty 2) | 01/01/70 00:00 | |
| Why more microcontrollers? | 01/01/70 00:00 | |
| is an external UART cheaper? | 01/01/70 00:00 | |
| Are we over-complicating this? | 01/01/70 00:00 | |
Can switch autmatically in hardware | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 |