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Adding ability to send repeated starts in Wire library.

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This adds an additional (boolean) parameter to both endTransmission() and requestFrom(), which specifies whether or not to send a stop condition after the corresponding transmission.  This defaults to true, as in the previous behavior of the library.

http://code.google.com/p/arduino/issues/detail?id=663
This commit is contained in:
David A. Mellis
2012-02-18 20:05:11 -05:00
parent 561cd7054d
commit 2f29f898de
4 changed files with 111 additions and 16 deletions
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5
libraries/Wire/Wire.h
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@@ -15,6 +15,8 @@
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
*/
#ifndef TwoWire_h
@@ -50,8 +52,11 @@ class TwoWire : public Stream
void beginTransmission(uint8_t);
void beginTransmission(int);
uint8_t endTransmission(void);
uint8_t endTransmission(uint8_t);
uint8_t requestFrom(uint8_t, uint8_t);
uint8_t requestFrom(uint8_t, uint8_t, uint8_t);
uint8_t requestFrom(int, int);
uint8_t requestFrom(int, int, int);
virtual size_t write(uint8_t);
virtual size_t write(const uint8_t *, size_t);
virtual int available(void);