Merge pull request #2 from douweh/master

Fix for #1 by making delay explicit

Author: mathieukaelin

src/MagAlpha.cpp

@@ -109,9 +109,11 @@ uint8_t MagAlpha::readRegister(uint8_t address){
   digitalWrite(_spiChipSelectPin, LOW);
   SPI.transfer16(READ_REG_COMMAND | ((address & 0x1F) << 8) | 0x00);
   digitalWrite(_spiChipSelectPin, HIGH);
+  delayMicroseconds(1); //Wait for 1us (=1000 ns) to respect tIdleReg of 750ns before register readout
   digitalWrite(_spiChipSelectPin, LOW);
   readbackRegisterValue = ((SPI.transfer16(0x0000) & 0xFF00) >> 8);
   digitalWrite(_spiChipSelectPin, HIGH);
+  delayMicroseconds(1); //Wait for 1us (=1000 ns) to respect tIdleReg of 750ns after register readout
   return readbackRegisterValue;
 }