public int SetTimeoutApi(UInt16 timeout)
{
switch (as_atAdapterType)
{
case AdapterSelector.AdapterType.AS_AT_DUMMY:
break;
case AdapterSelector.AdapterType.AS_AT_AARDVARK:
if (iHandler <= 0)
{
if (ConnectApi() < 0)
{
MessageBox.Show("I2cMasterConnectApi() fail!!");
}
return(-1);
}
return(AardvarkApi.aa_i2c_bus_timeout(iHandler, timeout));
case AdapterSelector.AdapterType.AS_AT_MCP2221:
if (timeout > 0xFF)
{
return(-1);
}
if (ipHandler == IntPtr.Zero)
{
if (ConnectApi() < 0)
{
MessageBox.Show("I2cMasterConnectApi() fail!!");
}
return(-1);
}
return(Mcp2221Api.Mcp2221SetAdvancedCommParamsApi(ipHandler, Convert.ToByte(timeout), 1));
default:
break;
}
return(-1);
}
/*=====================================================================
| MAIN PROGRAM
| ====================================================================*/
public static void Main(string[] args)
{
int handle;
int port = 0;
int bitrate = 100;
int bus_timeout;
byte device;
byte addr;
short length;
if (args.Length != 6)
{
Console.WriteLine("usage: aai2c_eeprom PORT BITRATE read SLAVE_ADDR OFFSET LENGTH");
Console.WriteLine("usage: aai2c_eeprom PORT BITRATE write SLAVE_ADDR OFFSET LENGTH");
Console.WriteLine("usage: aai2c_eeprom PORT BITRATE zero SLAVE_ADDR OFFSET LENGTH");
return;
}
string command = args[2];
// Parse the port argument
try {
port = Convert.ToInt32(args[0]);
}
catch (Exception) {
Console.WriteLine("Error: invalid port number");
return;
}
// Parse the bitrate argument
try {
bitrate = Convert.ToInt32(args[1]);
}
catch (Exception) {
Console.WriteLine("Error: invalid bitrate");
return;
}
// Parse the slave address argument
try {
if (args[3].StartsWith("0x"))
{
device = Convert.ToByte(args[3].Substring(2), 16);
}
else
{
device = Convert.ToByte(args[3]);
}
}
catch (Exception) {
Console.WriteLine("Error: invalid device number");
return;
}
// Parse the memory offset argument
try {
if (args[4].StartsWith("0x"))
{
addr = Convert.ToByte(args[4].Substring(2), 16);
}
else
{
addr = Convert.ToByte(args[4]);
}
}
catch (Exception) {
Console.WriteLine("Error: invalid memory addr");
return;
}
// Parse the length
try {
length = Convert.ToInt16(args[5]);
}
catch (Exception) {
Console.WriteLine("Error: invalid length");
return;
}
// Open the device
handle = AardvarkApi.aa_open(port);
if (handle <= 0)
{
Console.WriteLine("Unable to open Aardvark device on port {0}",
port);
Console.WriteLine("error: {0}",
AardvarkApi.aa_status_string(handle));
return;
}
// Ensure that the I2C subsystem is enabled
AardvarkApi.aa_configure(handle, AardvarkConfig.AA_CONFIG_SPI_I2C);
// Enable the I2C bus pullup resistors (2.2k resistors).
// This command is only effective on v2.0 hardware or greater.
// The pullup resistors on the v1.02 hardware are enabled by default.
AardvarkApi.aa_i2c_pullup(handle, AardvarkApi.AA_I2C_PULLUP_BOTH);
// Power the EEPROM using the Aardvark adapter's power supply.
// This command is only effective on v2.0 hardware or greater.
// The power pins on the v1.02 hardware are not enabled by default.
AardvarkApi.aa_target_power(handle,
AardvarkApi.AA_TARGET_POWER_BOTH);
// Set the bitrate
bitrate = AardvarkApi.aa_i2c_bitrate(handle, bitrate);
Console.WriteLine("Bitrate set to {0} kHz", bitrate);
// Set the bus lock timeout
bus_timeout = AardvarkApi.aa_i2c_bus_timeout(handle, BUS_TIMEOUT);
Console.WriteLine("Bus lock timeout set to {0} ms", bus_timeout);
// Perform the operation
if (command == "write")
{
_writeMemory(handle, device, addr, length, false);
Console.WriteLine("Wrote to EEPROM");
}
else if (command == "read")
{
_readMemory(handle, device, addr, length);
}
else if (command == "zero")
{
_writeMemory(handle, device, addr, length, true);
Console.WriteLine("Zeroed EEPROM");
}
else
{
Console.WriteLine("unknown command: {0}", command);
}
// Close the device and exit
AardvarkApi.aa_close(handle);
}