| ??? 11/26/04 13:38 Read: times |
#82016 - Yet another problem you must fix. Responding to: ???'s previous message |
There is still another problem in your code that must be fixed. On the transmit side you are setting port P1=0x00 in the main program. A couple of instructions father down you are trying to read the P1 into another variable. Standard types of 89C51's with their bi-directional I/O pins will be reading in a zero value to this variable every time. To permit port P1 to be used as a input port it is essential that you initialize it like this --> P1=0xFF.
Michael Karas |
| Topic | Author | Date |
| AT89c51 serial communication problem | 01/01/70 00:00 | |
| Try | 01/01/70 00:00 | |
| While loop in Transmit Char function | 01/01/70 00:00 | |
| mistakes | 01/01/70 00:00 | |
| mistakes fixed but still in a fix | 01/01/70 00:00 | |
| too more fix | 01/01/70 00:00 | |
| Give little more details | 01/01/70 00:00 | |
| more details | 01/01/70 00:00 | |
| problem solved | 01/01/70 00:00 | |
| answer wrong | 01/01/70 00:00 | |
| Yet another problem you must fix. | 01/01/70 00:00 | |
| Hex files needed | 01/01/70 00:00 | |
| Check The serial port | 01/01/70 00:00 | |
Problem solved | 01/01/70 00:00 |