public void WriteRead(
byte[] writeBuffer,
int writeOffset,
int writeLength,
byte[] readBuffer,
int readOffset,
int readLength)
{
if (BusType == BME280BusType.I2C)
{
I2CDevice.WriteRead(
writeBuffer,
writeOffset,
writeLength,
readBuffer,
readOffset,
readLength);
}
else
{
var _bufferSize = writeLength + readLength;
byte[] _readBuffer = new byte[_bufferSize];
byte[] _writeBuffer = new byte[_bufferSize];
Array.Copy(writeBuffer, writeOffset, _writeBuffer, 0, writeLength);
SpiDevice.TransferFullDuplex(_writeBuffer, _readBuffer);
Array.Copy(_readBuffer, writeLength, readBuffer, readOffset, readLength);
}
}
public byte[] ReadRegion(byte address, int length)
{
if (BusType == BME280BusType.I2C)
{
var readBuffer = new byte[length];
var writeBuffer = new byte[] { address };
I2CDevice.WriteRead(writeBuffer, readBuffer);
return(readBuffer);
}
else
{
var bufferSize = length + 1;
var txBuffer = new byte[bufferSize];
txBuffer[0] = (byte)(address | 0x80);
byte[] rxBuffer = new byte[txBuffer.Length];
SpiDevice.TransferFullDuplex(txBuffer, rxBuffer);
var output = new byte[length];
Array.Copy(rxBuffer, 1, output, 0, output.Length);
return(output);
}
}
