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Code Issues Releases Activity

Remove steps to disable pull ups as they are not needed

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The Due has external pull-ups on the SDA0 and SCL0, and PIO_Configure
in Wire*_Init does not enable then.
This commit is contained in:
Sandeep Mistry 2015-09-29 17:12:33 -04:00
parent fdef4f27fe
commit 851efaefd7
1 changed files with 6 additions and 12 deletions
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18
hardware/arduino/sam/libraries/Wire/Wire.cpp
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@ -398,12 +398,9 @@ static void Wire_Deinit(void) {
pmc_disable_periph_clk(WIRE_INTERFACE_ID);
// disable pull ups
pinMode(PIN_WIRE_SDA, OUTPUT);
pinMode(PIN_WIRE_SCL, OUTPUT);
digitalWrite(PIN_WIRE_SDA, LOW);
digitalWrite(PIN_WIRE_SCL, LOW);
// no need to undo PIO_Configure,
// as Peripheral A was enable by default before,
// and pullups were not enabled
}
TwoWire Wire = TwoWire(WIRE_INTERFACE, Wire_Init, Wire_Deinit);
@ -439,12 +436,9 @@ static void Wire1_Deinit(void) {
pmc_disable_periph_clk(WIRE1_INTERFACE_ID);
// disable pull ups
pinMode(PIN_WIRE1_SDA, OUTPUT);
pinMode(PIN_WIRE1_SCL, OUTPUT);
digitalWrite(PIN_WIRE1_SDA, LOW);
digitalWrite(PIN_WIRE1_SCL, LOW);
// no need to undo PIO_Configure,
// as Peripheral A was enable by default before,
// and pullups were not enabled
}
TwoWire Wire1 = TwoWire(WIRE1_INTERFACE, Wire1_Init, Wire1_Deinit);