| ??? 07/24/07 00:49 Read: times |
#142229 - connetion diagram, and line status may help Responding to: ???'s previous message |
Please draw a connection diagram first.
Then check line voltage of each point when it's not working. ( especially D+, D-, DE, and /RE of your embedded board ) For 485, halp duplex differential line can only have one 'master' at a time. if DE and /RE are connected together (for most cases), your MC cannot receive data while holding DE high. |
| Topic | Author | Date |
| CY8051F320 , Serial communication problem | 01/01/70 00:00 | |
| A schematic please | 01/01/70 00:00 | |
| the logical solution | 01/01/70 00:00 | |
| reply | 01/01/70 00:00 | |
| answers | 01/01/70 00:00 | |
connetion diagram, and line status may help | 01/01/70 00:00 |