Interrupts Identification (handling)

Hello all again;

In a program I want to do, I want to handle more than an interrupt source, so I enable theese interrupts:
-RB Port Change Interrupt
-Timer1 Overflow Interrupt

in the ON INTERRUPT part, ¿How can I identify which interrupt was triggered?

(if relevant, PIC is a 16F628A)

regards
Rod

Hi,

Just check if corresponding interrupt flags are set ... before clearing them !

that's all !

Alain

Quote:

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Originally Posted by Acetronics

Hi,

Just check if corresponding interrupt flags are set ... before clearing them !

that's all !

Alain

---

LOL so simple ! thank you.
-something like:

Code:

---

...
ON INTERRUPT GOTO IntHandler
...
...
IntHandler:
  If PIR1.0=1 then
    PIR1.0=0 'Clear flag
    ..do my thing...
    RESUME
  EndIF

  If INTCON.0=1 then
    INTCON.0=0 'Clear flag
    ..do my thing...
    RESUME
  EndIF

---

but.. if I have 10 interrupts enabled and the last interrupt checking ('If' statement) was the triggered, will I always have to check the previous 9 each??, sounds like it will.

PD: ENABLE & DISABLE are optional, am I ok?

Why not use Darrels Interrupts?

Ioannis

Quote:

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Originally Posted by RodSTAR

LOL so simple ! thank you.
-something like:
[code]
...
?

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Yess ... so simple

Quote:

---

Originally Posted by RodSTAR

but.. if I have 10 interrupts enabled and the last interrupt checking ('If' statement) was the triggered, will I always have to check the previous 9 each??, sounds like it will.
?

---

You see anther way to check which has triggered ???

it's a Pic specifics !!!

Quote:

---

Originally Posted by RodSTAR

PD: ENABLE & DISABLE are optional, am I ok


?

---

heuuuuu, disable before the interrupt stubb !!! or it will be fun ...

Ioannis ( hello ...) is right ... BUT if your device shows ~> 2K prog space min. ( say ~> 100 SRAM Bytes ...). The 12F683 is the minimum size to allow something "usable" ...

Alain

Hi Alain. He stated that the device is F628, so it might fit the budget! But on the other hand, On Interrupts, depending on the length of the PBP program might consume RAM too.

Ioannis