Calibre | Calibre UK UCA93 guide

CALIBRE

When the master terminates the transfer, the adapter completes sending the data block to the host together with a single status byte indicating how the transfer went, and the data is put into a global variable. The BlockSlaveReceiverStatus function waits for this status byte and the byte can be interpreted as in the function definition.

When the BlockSlaveReceiver function terminates the adapter goes back into an idle state – it will not acknowledge its own address or repeat any other slave behaviour until the slave function is called again.

If the master erroneously sends a read address when the BlockSlaveReceiver function has been called the adapter will send a fixed sequence of 0x55s until the master terminates the transfer.

Issue 1.0	Page 21
01/07/03

Image 24

Calibre UK UCA93 manual Calibre

Contents

Calibre Calibre Contents Connecting the Adapter to your System General IntroductionPacking List Bus Termination and Protection Variable Voltage Bus Power Supply Bus Capacitance Limitations/Cable Choice Installing the Adapter Introduction Libraries for Programming in Microsoft Windows Environments Function Prototypes Calibre Int SlaveBlockTimeout Int ownaddressInt ClockSpeed Int BusVoltage Int DataByte SendAddressInt I2CData None Using the Adapter Int I2Cstatus Int NoBytesToSend Int NoTriesInt DataVal Returns an unused integer Int Timeout Int RdDataInt NoBytesToTransmit Int NoBytesToReceive Int PullupVoltage Int IOState Int SendAddressNoStatus WriteByteNoStatus Real-Time Bus Monitor Stop Bit 4 The BER Bus Error Bit Appendix a I2C Communications Adapter Status CodesBit 7 MSB The old PIN Bit Bit 5 The old STS Bit USB Bus Characteristics Polling the Status Register and how to avoid itBlock Functions Block Write Function Slave Transmitter Function Slave Receiver Function Calibre When the the Most Commonly Asked I2C Questions Question Get corrupted transfers why is this?General Questions Question Do you have software to talk to my........?