| ??? 02/12/09 06:26 Read: times |
#162307 - thank you for the answer Responding to: ???'s previous message |
Richard,
I have solved most of the conflict with the code, being the principal problem that I wasn't using the accumulator, but just the registers. When I said Port A, I was talking about the Port A of the first i8255, and about the less significant bits, I meant I was trying to use the port only as a 4-bit interface. I'm using the as31 assembler by the way. Now the problem I have is that I need to change the use of the accumulator inside the program, but I can check that on my own, anyways, I appreciate that you answered, and I'll take on consideration your comment for my next experiment (I'm just practicing in the 8051 because I want to learn about microcontrollers from a general view). Thank you. |
| Topic | Author | Date |
| Need some help with port reading and LCD displaying. | 01/01/70 00:00 | |
| be more specific in your statement of the problem! | 01/01/70 00:00 | |
| is other part(LCD) working? | 01/01/70 00:00 | |
| The LCD actually is working | 01/01/70 00:00 | |
| It worked better than mine | 01/01/70 00:00 | |
| You still have no loop | 01/01/70 00:00 | |
| Nearly perfectly working | 01/01/70 00:00 | |
| what is Your default code? | 01/01/70 00:00 | |
| My actual code | 01/01/70 00:00 | |
| that's not 'code' | 01/01/70 00:00 | |
| Sorry | 01/01/70 00:00 | |
| Is this really all of it? | 01/01/70 00:00 | |
Yeah, it's all of it | 01/01/70 00:00 | |
| thank you for the answer | 01/01/70 00:00 | |
| Compare Jump NOT Equal | 01/01/70 00:00 |