| ??? 01/21/13 11:41 Read: times |
#189279 - Hardware Responding to: ???'s previous message |
Write first 0xFF to port 2 before reading That presumes that the value he must read from port 2 originates outside the microcontroller, an assumption that seems contradicted by the requirement that he write his result to port 2. In any case, he clearly needs to better understand the hardware aspects of input/output. Joe |
| Topic | Author | Date |
| 8051 QUESTION | 01/01/70 00:00 | |
| Input/output | 01/01/70 00:00 | |
| quasi bidirectional ports | 01/01/70 00:00 | |
| Hardware | 01/01/70 00:00 | |
8051 basics | 01/01/70 00:00 |