Can't log SPI barometer(VT1000) reading to SD card with SD lib

Other Hardware Storage
2

I don't know anything about the barometer itself, but I do know a little about the SPI bus. Try this.

  pinMode(chipSelectPin, OUTPUT);
  // disable SD while read/write to barometer.
  // Once SD.begin() runs, this will be HIGH if not in a SD function
  pinMode(SD_chipSelectPin,OUTPUT);
  digitalWrite(SD_chipSelectPin,HIGH);

  //Configure SCP1000 for low noise configuration:
  writeRegister(0x02, 0x2D);
  writeRegister(0x01, 0x03);
  writeRegister(0x03, 0x02);
  // give the sensor time to set up:
  delay(100);

You may need to check if the barometer library writeRegister (and readRegister?) functions manipulate the SS pin for the barometer. The read/write functions should set the barometer SS LOW, do the read/write, then set the SS pin HIGH.

edit: My bad. I used the wrong SS pin, It should have been SD_chipSelectPin. Also if the barometer read/write routines do not manipulate the SS pin, it isn't hard. Like this:

  digitalWrite(chipSelectPin,LOW);
  writeRegister(0x02, 0x2D);
  writeRegister(0x01, 0x03);
  writeRegister(0x03, 0x02);
  digitalWrite(chipSelectPin,HIGH);