org.lsst.ccs.drivers.ad

Class Cypress

java.lang.Object

org.lsst.ccs.drivers.ad.Cypress

Direct Known Subclasses:

I2cBus, SpiBus

public class Cypress
extends Object

Routines to access Cypress EZUSB chip functions on an Analog Devices evaluation board

Author:

Owen Saxton

Constructor Summary

Constructors

Constructor and Description
Cypress()

Method Summary

Modifier and Type	Method and Description
void	load(String name, boolean force) Loads memory from a file
int	readMemory(int addr, byte[] data, int timeout) Reads byte array from memory
int	readMemory(int addr, byte[] data, int offs, int leng, int timeout) Reads byte array from memory
void	setReset(boolean on) Sets or clears the RESET state
void	setUsbDevice(org.lsst.ccs.drivers.usb.UsbDevice usb) Sets the USB device for subsequent operations.
int	writeMemory(int addr, byte[] data) Writes byte array to memory
int	writeMemory(int addr, byte[] data, int offs, int leng) Writes byte array to memory

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Cypress

public Cypress()

Method Detail

setUsbDevice

public void setUsbDevice(org.lsst.ccs.drivers.usb.UsbDevice usb)

Sets the USB device for subsequent operations.

Parameters:

usb - The USB device to set

setReset

public void setReset(boolean on)
              throws org.lsst.ccs.drivers.commons.DriverException

Sets or clears the RESET state

Parameters:

on - If true, sets RESET, otherwise clears RESET

Throws:

org.lsst.ccs.drivers.commons.DriverException

readMemory

public int readMemory(int addr,
                      byte[] data,
                      int timeout)
               throws org.lsst.ccs.drivers.commons.DriverException

Reads byte array from memory

Parameters:

addr - The first address to read

data - The array of bytes to read into

timeout - The maximum time to wait (ms), or 0 for no timeout

Returns:

The number of bytes read.

Throws:

org.lsst.ccs.drivers.commons.DriverException

readMemory

public int readMemory(int addr,
                      byte[] data,
                      int offs,
                      int leng,
                      int timeout)
               throws org.lsst.ccs.drivers.commons.DriverException

Reads byte array from memory

Parameters:

addr - The first address to read

data - The array of bytes to read into

offs - The offset in data to the first byte to read into

leng - The number of bytes to read

timeout - The maximum time to wait (ms), or 0 for no timeout

Returns:

The number of bytes read.

Throws:

org.lsst.ccs.drivers.commons.DriverException

writeMemory

public int writeMemory(int addr,
                       byte[] data)
                throws org.lsst.ccs.drivers.commons.DriverException

Writes byte array to memory

Parameters:

addr - The first address to write

data - The array of bytes to write

Returns:

The number of bytes written.

Throws:

org.lsst.ccs.drivers.commons.DriverException

writeMemory

public int writeMemory(int addr,
                       byte[] data,
                       int offs,
                       int leng)
                throws org.lsst.ccs.drivers.commons.DriverException

Writes byte array to memory

Parameters:

addr - The first address to write

data - The array of bytes to write

offs - The offset in data to the first byte to write from

leng - The number of bytes to write

Returns:

The number of bytes written.

Throws:

org.lsst.ccs.drivers.commons.DriverException

load

public void load(String name,
                 boolean force)
          throws org.lsst.ccs.drivers.commons.DriverException

Loads memory from a file

Parameters:

name - The name of the "hex" file to load

force - If true, force the load even if memory appears to be already loaded correctly.

Throws:

org.lsst.ccs.drivers.commons.DriverException