| ??? 03/08/05 06:50 Read: times |
#89251 - Definitely suspicious! Responding to: ???'s previous message |
I dredged up the HD44780 specs: taS address setup (RS,R/W) to E is 140nS min tdsw data setup for write to E is 195nS min So the tutorial is showing newbies how to do it wrong! It might work on a slow 8051, but with speedy 8051s proliferating - methinks they'll be trouble a plenty. The tutorial doesn't talk about the need to have delays when using a fast cpu either. |
| Topic | Author | Date |
| Hello World program problem. | 01/01/70 00:00 | |
| More info | 01/01/70 00:00 | |
| Scope ? | 01/01/70 00:00 | |
| Suspect tutorial? | 01/01/70 00:00 | |
| Definitely suspicious! | 01/01/70 00:00 | |
| You are right | 01/01/70 00:00 | |
| Craig, you are not the only one | 01/01/70 00:00 | |
| Of course... | 01/01/70 00:00 | |
| been there, done that | 01/01/70 00:00 | |
| For what it's worth (not much) | 01/01/70 00:00 | |
| Absolutely !!! | 01/01/70 00:00 | |
| ISIS ? | 01/01/70 00:00 | |
| Isis manufacturer website | 01/01/70 00:00 | |
| Here comes new(?) problem. ^_^; | 01/01/70 00:00 | |
| Correction | 01/01/70 00:00 | |
| Good to hear it really worked. ^_^ | 01/01/70 00:00 | |
| Be sure it solves your problem! | 01/01/70 00:00 | |
| Re: | 01/01/70 00:00 | |
| Its ISIS not the code | 01/01/70 00:00 | |
| Status not supported | 01/01/70 00:00 | |
| Polling Vs Delays | 01/01/70 00:00 | |
What kind of an excuse is that?! | 01/01/70 00:00 |