| ??? 07/25/10 10:34 Read: times |
#177439 - Explanation Responding to: ???'s previous message |
Yes, an input to a pin externally, a pin which is a part of a 10-pin header connector which looks like the one's in the image:
The example program when executed, turns on a LED on pressing of a button, apart from that, it says: The program also monitors P4.0. If P4.0 is high, it sets P4.1 low. If P4.0 is low, P4.1 is set high. The purpose of this part of the program is to show how to access the higher ports. Ports 4-7 are not available on all SFR pages, so the SFRPAGE register must be set correctly before reading or writing these ports. How To Test: 1) Download code to a 'F120 target board 2) Ensure that the J1 and J3 headers are shorted 3) Push the button (P3.7) and see that the LED turns on 4) Set P4.0 high and low using an external connection and check that the output on P4.1 is the inverse of P4.0 Therefore, how do i use the external connection with a single pin ? |
| Topic | Author | Date |
| Regarding header connector | 01/01/70 00:00 | |
| well, if you posted a link ... | 01/01/70 00:00 | |
| Explanation | 01/01/70 00:00 | |
| for what? | 01/01/70 00:00 | |
| To check... | 01/01/70 00:00 | |
| Inputs always related to something else | 01/01/70 00:00 | |
| School work | 01/01/70 00:00 | |
| Board Used | 01/01/70 00:00 | |
| Avoid "it" unless you have already defined what "it" is. | 01/01/70 00:00 | |
| Thank You | 01/01/70 00:00 | |
| could be misread without the addition | 01/01/70 00:00 | |
| Like This | 01/01/70 00:00 | |
Nice | 01/01/70 00:00 |