URL:
<http://savannah.nongnu.org/bugs/?35971>
Summary: attiny4313 (2313a) pin-change interrupts
PCINT[0...2]_vect etc.
Project: AVR C Runtime Library
Submitted by: madworm
Submitted on: Fri 23 Mar 2012 11:50:40 PM GMT
Category: Header
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Header files
Status: None
Percent Complete: 0%
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Release: 1.8.0
Fixed Release: None
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Details:
According to the datasheet these mcus support pin-change interrupts in 3
groups and hence also 3 pin-change interrupts:
PCINT0_vect ( vector #12 - avr-libc counting: 11 )
PCINT1_vect ( vector #20 - 19 )
PCINT2_vect ( vector #21 - 20 )
Strangely I can only find the enable bit 'PCIE' for group 0 in the latest
'iotn4313.h' I got from this site. It should have PCIE0, PCIE1 and PCIE2.
However PCMSK2 for example is defined, but useless without the ISR enabled.
Also what is unfortunate is the naming convention of the interrupts.
PCINT0_vect is called PCINT_B_vect
PCINT1_vect is called PCINT_A_vect
PCINT2_vect is caleld PCINT_D_vect
Where's PCINT_C_vect btw?
Sticking to the names of the datasheet would be best.
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