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Renaming SPI.send() to SPI.transfer() to better reflect its bi-directional nature.

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This commit is contained in:
David A. Mellis
2010-08-07 20:08:53 +00:00
parent 05e8d675cd
commit 3899ffc75d
4 changed files with 28 additions and 28 deletions
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4
libraries/SPI/SPI.h
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@ -38,7 +38,7 @@ class SPIClass {
public:
SPIClass();
inline static byte send(byte _data);
inline static byte transfer(byte _data);
// SPI Configuration methods
@ -59,7 +59,7 @@ public:
extern SPIClass SPI;
byte SPIClass::send(byte _data) {
byte SPIClass::transfer(byte _data) {
SPDR = _data;
while (!(SPSR & _BV(SPIF)))
;

10
libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.pde
View File

@ -92,8 +92,8 @@ void writeRegister(byte registerName, byte registerValue) {
// take the chip select low to select the device:
digitalWrite(chipSelectPin, LOW);
SPI.send(registerName); //Send register location
SPI.send(registerValue); //Send value to record into register
SPI.transfer(registerName); //Send register location
SPI.transfer(registerValue); //Send value to record into register
// take the chip select high to de-select:
digitalWrite(chipSelectPin, HIGH); //Select SPI device
@ -114,9 +114,9 @@ unsigned int readRegister(byte registerName, int numBytes) {
// take the chip select low to select the device:
digitalWrite(chipSelectPin, LOW);
// send the device the register you want to read:
int command = SPI.send(registerName);
int command = SPI.transfer(registerName);
// send a value of 0 to read the forst byte returned:
inByte = SPI.send(0x00);
inByte = SPI.transfer(0x00);
// if there's more than one byte returned,
// shift the first byte then get the second byte:
@ -126,7 +126,7 @@ unsigned int readRegister(byte registerName, int numBytes) {
break;
case 2:
result = inByte << 8;
inByte = SPI.send(0x00);
inByte = SPI.transfer(0x00);
result = result |inByte;
break;
}