| 6502.org http://forum.6502.org/ |
|
| [88] 6502 irq http://forum.6502.org/viewtopic.php?f=7&t=344 |
Page 1 of 1 |
| Author: | forrestlyu [ Fri Jan 05, 2001 12:56 am ] |
| Post subject: | [88.1] 6502 irq |
i using weltrend 505f 6502 microcontroller met a problem which there are seven source can go irq ,if i enable that seven source in same time How can i identfy which source want interrupt |
|
| Author: | GARTHWILSON [ Fri Jan 05, 2001 4:22 am ] |
| Post subject: | [88.2] 6502 irq |
I've never heard of the 505f microcontroller, but I'm sure there are status registers or interrupt flag registers that your interrupt-service routine (ISR) can poll, in order of priority, to not only see what caused the interrupt(s), but to service them in order of importance or urgency if there was more than one at a time. Is there information about this microcontroller on the web? I'm interested. |
|
| Page 1 of 1 | All times are UTC |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|