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Erik Strand
lufa
Commits
d3699d02
Commit
d3699d02
authored
May 18, 2010
by
Dean Camera
Browse files
Added new ADC_DisableChannel() function (thanks to Mich Davis).
parent
f13bc35a
Changes
2
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LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h
View file @
d3699d02
...
...
@@ -287,6 +287,49 @@
#endif
}
/** Deconfigures the given ADC channel, re-enabling digital I/O mode instead of analog. This
* function sets the associated port pin as an input and re-enabled the digital portion of
* the I/O.
*
* \note This must only be called for ADC channels with are connected to a physical port
* pin of the AVR, denoted by its special alternative function ADCx.
* \n\n
*
* \note The channel number must be specified as an integer, and NOT a ADC_CHANNELx mask.
*
* \param[in] Channel ADC channel number to set up for conversions
*/
static
inline
void
ADC_DisableChannel
(
const
uint8_t
Channel
)
{
#if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \
defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB647__) || \
defined(__AVR_ATmega32U6__))
DDRF
&=
~
(
1
<<
Channel
);
DIDR0
&=
~
(
1
<<
Channel
);
#elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))
if
(
Channel
<
8
)
{
DDRF
&=
~
(
1
<<
Channel
);
DIDR0
&=
~
(
1
<<
Channel
);
}
else
if
(
Channel
==
8
)
{
DDRD
&=
~
(
1
<<
4
);
DIDR2
&=
~
(
1
<<
0
);
}
else
if
(
Channel
<
11
)
{
DDRD
&=
~
(
1
<<
(
Channel
-
3
));
DIDR2
&=
~
(
1
<<
(
Channel
-
8
));
}
else
{
DDRB
&=
~
(
1
<<
(
Channel
-
7
));
DIDR2
&=
~
(
1
<<
(
Channel
-
8
));
}
#endif
}
/** Starts the reading of the given channel, but does not wait until the conversion has completed.
* Once executed, the conversion status can be determined via the \ref ADC_IsReadingComplete() macro and
* the result read via the \ref ADC_GetResult() macro.
...
...
LUFA/ManPages/ChangeLog.txt
View file @
d3699d02
...
...
@@ -8,7 +8,7 @@
*
* \section Sec_ChangeLogXXXXXX Version XXXXXX
* <b>New:</b>
* -
N/A
* -
Added new ADC_DisableChannel() function (thanks to Mich Davis)
*
* <b>Changed:</b>
* - N/A
...
...
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