| ??? 06/22/05 04:36 Read: times |
#95547 - For io expenssion Responding to: ???'s previous message |
for io expension three mode can be used
1) PC as master and other as slaves. 2) PC as Master and one 89c51 as salve and connectd so many serial in parellel out like (CD4094BC). 3) using RS-485 which is better then for fast 300,600,900 relays drive.All components on same box. |
| Topic | Author | Date |
| One 89c51 Master and 7 Slaves | 01/01/70 00:00 | |
| Multiple 8051s communication | 01/01/70 00:00 | |
| Standard IO expender | 01/01/70 00:00 | |
| try 74xx273 | 01/01/70 00:00 | |
| Try parallel comm, | 01/01/70 00:00 | |
| Defeating the object? | 01/01/70 00:00 | |
| Parallel communnication | 01/01/70 00:00 | |
| expand the i/o | 01/01/70 00:00 | |
| Cart Before Horse | 01/01/70 00:00 | |
| Why not HC595? | 01/01/70 00:00 | |
| questions | 01/01/70 00:00 | |
| Answer | 01/01/70 00:00 | |
| From CBHS to STPC | 01/01/70 00:00 | |
| textile machine ... | 01/01/70 00:00 | |
| You're never too old to learn | 01/01/70 00:00 | |
| RS-485?? | 01/01/70 00:00 | |
| CAN?? | 01/01/70 00:00 | |
| the most I ever drove | 01/01/70 00:00 | |
| For io expenssion | 01/01/70 00:00 | |
| Big Box | 01/01/70 00:00 | |
| The best: | 01/01/70 00:00 | |
| Maxim | 01/01/70 00:00 | |
| explain,what calculation | 01/01/70 00:00 | |
Hmmmm.... | 01/01/70 00:00 |