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| Search found 7 matches |
| Author | Message |
|---|---|
 Topic: Interrupt levels and priorities |
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| myheadhurts Replies: 10 Views: 15749 |
 Forum: General CCS C Discussion Posted: Thu Dec 09, 2004 8:57 am Subject: Interrupt levels and priorities |
| Cheers Mark, this looks like just the ticket. I will give it a twirl and let you know later. | |
| Topic: Please help me about led is blink when i swap my sourcecode! |
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| myheadhurts Replies: 3 Views: 8269 |
Forum: General CCS C Discussion Posted: Thu Dec 09, 2004 8:24 am Subject: Please help me about led is blink when i swap my sourcecode! |
| Does the string to LCD function use the same port pin? this could account for the flash of the LED | |
| Topic: Interrupt levels and priorities |
|
| myheadhurts Replies: 10 Views: 15749 |
Forum: General CCS C Discussion Posted: Thu Dec 09, 2004 8:06 am Subject: Interrupt levels and priorities |
| cheers for that, I have looked at the asm/c listing and it appears to be in the correct places now.
It still looks like my fast interrupt is not interrupting my RDA interrupt. Do I need to set t ... |
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| Topic: Interrupt levels and priorities |
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| myheadhurts Replies: 10 Views: 15749 |
Forum: General CCS C Discussion Posted: Thu Dec 09, 2004 4:31 am Subject: Interrupt levels and priorities |
| forgive me for being a little thick!
I understand now that I have to use the fast keyword and the implications of backing up registers, but I don't seem to be able to fathom out specifically how or ... |
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| Topic: Interrupt levels and priorities |
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| myheadhurts Replies: 10 Views: 15749 |
Forum: General CCS C Discussion Posted: Thu Dec 09, 2004 3:07 am Subject: Interrupt levels and priorities |
| I've included the relavent code below.
I tried the #int_fast, but the ccs complier doesn't seem to recognise it and throws up an 'invalid pre-processor directive' message. #include <18F252.h> ... |
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| Topic: Interrupt levels and priorities |
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| myheadhurts Replies: 10 Views: 15749 |
Forum: General CCS C Discussion Posted: Wed Dec 08, 2004 11:10 am Subject: Interrupt levels and priorities |
| oh yeah, i forgot to mention, i am using a PIC18F252 | |
| Topic: Interrupt levels and priorities |
|
| myheadhurts Replies: 10 Views: 15749 |
Forum: General CCS C Discussion Posted: Wed Dec 08, 2004 11:09 am Subject: Interrupt levels and priorities |
| I seem to be struggling a little in guaranteeeing the level assigned to interrupts. I am using ext1 and need it to be in the high level interrupts section, and rda that needs to be in the low level se ... | |
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