| ??? 11/29/07 15:04 Read: times |
#147567 - if we do the usual guesswork... Responding to: ???'s previous message |
... and try to figure out what the OP wanted to ask - which, being a newbie, might not be able to ask - I suppose, the question was: I have an old program (an example perhaps), which uses P3.7 as a general purpose input (output) pin (e.g. for LED blinkey). Now, I want to interface 8255 to 8051, and write a similar program, but this time, instead of P3.7, I want to use an input (output) pin of 8255.
JW |
| Topic | Author | Date |
| Q for Richard Erlacher | 01/01/70 00:00 | |
| Is only Richard allowed to reply, then? | 01/01/70 00:00 | |
| Not afraid! | 01/01/70 00:00 | |
| How is the 8255 connected? | 01/01/70 00:00 | |
| I'll just go look at the user page. | 01/01/70 00:00 | |
| You mean this? | 01/01/70 00:00 | |
| XDATA | 01/01/70 00:00 | |
| Memory mapped! | 01/01/70 00:00 | |
| Sarcasm not in short supply! | 01/01/70 00:00 | |
| questions with questions | 01/01/70 00:00 | |
| I am just a lowly noob... | 01/01/70 00:00 | |
| memory mapped antique - beware ... | 01/01/70 00:00 | |
| if we do the usual guesswork... | 01/01/70 00:00 | |
| Spanish | 01/01/70 00:00 | |
| Your question is vague and confusing! | 01/01/70 00:00 | |
| Thankyou Richard and Andy. | 01/01/70 00:00 | |
No worries, mate! | 01/01/70 00:00 |