| ??? 02/12/05 22:46 Read: times |
#87234 - Obtaining Delays Responding to: ???'s previous message |
Ronan Meere said:
I want to turn the pin high, clear the pin, and set the next pin high etc. Is the code as follows
SETB P2.2 CLR P2.2 SETB P2.3 etc That is exactly right. If I want to include a delay between the pins going high, how would I do it. is it like ?,
SETB P2.2 CLR P2.2 Call Delay1 SETB P2.3 CLR P2.3 Possibly Finally If I want the subroutine [Delay1] to be 25 seconds, how would I code it? The problem with coding a long delay in a subroutine is that the micro can do nothing else while it is in the delay code. If you allow interrupts then they could delay the delay code so your delays are inaccurate. A better way to create delays is to use a timer interrupt to make your own RTC. Alternatively you could use a simple time triggered cooperative scheduler to implement a range of delays. Ian |
| Topic | Author | Date |
| delays | 01/01/70 00:00 | |
| delay routine ideas | 01/01/70 00:00 | |
| further ideas | 01/01/70 00:00 | |
| change p2 outputs | 01/01/70 00:00 | |
| Bad practice Peter | 01/01/70 00:00 | |
| sorry | 01/01/70 00:00 | |
| Obtaining Delays | 01/01/70 00:00 | |
| Not RTC | 01/01/70 00:00 | |
| it is good! | 01/01/70 00:00 | |
| it is good. | 01/01/70 00:00 | |
| Not so good | 01/01/70 00:00 | |
| Stop wasting our time Meero | 01/01/70 00:00 | |
| pot and kettle | 01/01/70 00:00 | |
| Eric the great. | 01/01/70 00:00 | |
Erik the great | 01/01/70 00:00 |