| ??? 04/24/08 05:48 Modified: 04/24/08 06:02 Read: times |
#153927 - No busy flag until the end of software init Responding to: ???'s previous message |
The hancmd routine checks busy flag.
But the datasheet says as follows, at the bottom of the Software Initialization (page 44). # The busy flag cannot be checked until this point is reached. If the busy flag is not checked at all, the wait time should be longer than the total execution time of these instructions. Surely, if it were in bold face and greater letter, it would be nice for our old eyes :-) But they repeat it three times in the initialization flow. Then, it may be enough for young. Tsueno |
| Topic | Author | Date |
| Hantronix LCD 4 bit mode | 01/01/70 00:00 | |
| Busy bit checking | 01/01/70 00:00 | |
| Nibble Mode... | 01/01/70 00:00 | |
| appreciate all | 01/01/70 00:00 | |
| your datasheet is compatable with HD44780 | 01/01/70 00:00 | |
| No busy flag until the end of software init | 01/01/70 00:00 | |
the code 'runs' | 01/01/70 00:00 |