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Moving SPI pin initialization from constructor to begin() function. That way, the SPI library won't alter any pin states unless / until you call begin().

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This commit is contained in:
David A. Mellis
2010-08-07 21:24:49 +00:00
parent 08feacbb40
commit b89d8a9c11
5 changed files with 20 additions and 23 deletions
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14
libraries/SPI/SPI.h
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@@ -35,8 +35,6 @@
class SPIClass {
public:
SPIClass();
inline static byte transfer(byte _data);
// SPI Configuration methods
@@ -44,8 +42,8 @@ public:
inline static void attachInterrupt();
inline static void detachInterrupt(); // Default
inline static void begin(); // Default
inline static void end();
static void begin(); // Default
static void end();
static void setBitOrder(uint8_t);
static void setDataMode(uint8_t);
@@ -69,12 +67,4 @@ void SPIClass::detachInterrupt() {
SPCR &= ~_BV(SPIE);
}
void SPIClass::begin() {
SPCR |= _BV(SPE);
}
void SPIClass::end() {
SPCR &= ~_BV(SPE);
}
#endif