| ??? 02/13/10 13:55 Read: times |
#173122 - clarify? Responding to: ???'s previous message |
Eatzik T said:
id like to create a timer interrupt when it will find out 9 pin legs state (of my 89s52) like port 2 and p1_3. Do you mean you want to "poll" the inputs, using a timer interrupt as your "trigger" to do each poll? Have you looked at the Tutorials on this site? if there was a change it will count it and store it. That bit should be easy - isn't it? how can i start with the registers? First, you need to know what registers there are, and what they do. For this, you will need to consult the device Datasheet (for device-specific features) and/or the so-called "bible" for the 8051 for features standard to the architecture: http://www.8052.com/faqs/120112 (i think it common) It is - so google should help? |
| Topic | Author | Date |
| help with timer interrupt for pins state | 01/01/70 00:00 | |
| clarify? | 01/01/70 00:00 | |
| replay | 01/01/70 00:00 | |
| bible time | 01/01/70 00:00 | |
| Time to read the Tutorials, then | 01/01/70 00:00 | |
Look At This | 01/01/70 00:00 |