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@@ -19,17 +19,18 @@
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Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
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*/
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-#include <math.h>
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-#include "Arduino.h" // for digitalWrite
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+#include <math.h>
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+#include "config.h"
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+#include "fastio.h"
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#include "twi.h"
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void twi_init(void)
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{
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// activate internal pullups for twi.
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- digitalWrite(SDA, 1);
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- digitalWrite(SCL, 1);
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+ WRITE(SDA_PIN, 1);
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+ WRITE(SCL_PIN, 1);
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// initialize twi prescaler and bit rate
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TWSR &= ~(_BV(TWPS0) | _BV(TWPS1));
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@@ -44,8 +45,8 @@ void twi_init(void)
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void twi_disable(void)
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{
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// deactivate internal pullups for twi.
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- digitalWrite(SDA, 0);
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- digitalWrite(SCL, 0);
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+ WRITE(SDA_PIN, 0);
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+ WRITE(SCL_PIN, 0);
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}
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