/**
* Writes the account data to the SHAiButton. First, this function asserts that the account page
* number is known. The account data is copied from dataBuffer starting at the offset. If there
* are less than 32 bytes available to copy, this function only copies the bytes that are
* available.
*
* @param dataBuffer the buffer to copy the account data from
* @param offset the index into the buffer where copying should begin
* @return whether or not the data write succeeded
* @throws OneWireIOException on a 1-Wire communication error such as reading an incorrect CRC
* from a 1-Wire device. This could be caused by a physical interruption in the 1-Wire Network
* due to shorts or a newly arriving 1-Wire device issuing a 'presence pulse'.
* @throws OneWireException on a communication or setup error with the 1-Wire adapter
*/
public synchronized boolean writeAccountData(byte[] dataBuffer, int offset)
throws OneWireException, OneWireIOException {
// init local vars
OneWireContainer18 ibcL = this.ibc;
// make sure account info is properly setup
if (!checkAccountPageInfo(ibcL)) return false;
int numBytes = Math.min(32, dataBuffer.length - offset);
System.arraycopy(dataBuffer, offset, this.accountData, 0, numBytes);
if (ibcL.writeDataPage(this.accountPageNumber, this.accountData)) {
if (this.writeCycleCounter >= 0) this.writeCycleCounter++;
return true;
}
// if write failed, we don't know what the write cycle counter is
this.writeCycleCounter = -1;
// and this cache should be marked dirty
this.accountData[0] = 0;
return false;
}
