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Allow use of any available baud rate.

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This commit is contained in:
Edward Wright 2021-10-20 11:24:17 -04:00
parent b555181cb3
commit 16722d499c
1 changed files with 20 additions and 11 deletions
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29
SimplySerial/SimplySerial.cs
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@ -13,7 +13,7 @@ namespace SimplySerial
{ {
class SimplySerial class SimplySerial
{ {
const string version = "0.6.0"; const string version = "0.7.0";
private const int STD_OUTPUT_HANDLE = -11; private const int STD_OUTPUT_HANDLE = -11;
private const uint ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x0004; private const uint ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x0004;
@ -175,7 +175,7 @@ namespace SimplySerial
} }
// if we get this far, it should be safe to set up the specified/selected serial port // if we get this far, it should be safe to set up the specified/selected serial port
serialPort = new SerialPort(port.name, baud, parity, dataBits, stopBits) serialPort = new SerialPort(port.name)
{ {
Handshake = Handshake.None, // we don't need to support any handshaking at this point Handshake = Handshake.None, // we don't need to support any handshaking at this point
ReadTimeout = 1, // minimal timeout - we don't want to wait forever for data that may not be coming! ReadTimeout = 1, // minimal timeout - we don't want to wait forever for data that may not be coming!
@ -184,6 +184,21 @@ namespace SimplySerial
RtsEnable = true // without this we don't ever receive any data RtsEnable = true // without this we don't ever receive any data
}; };
// attempt to set the baud rate, fail if the specified value is not supported by the hardware
try
{
serialPort.BaudRate = baud;
}
catch (ArgumentOutOfRangeException)
{
ExitProgram(("The specified baud rate (" + baud + ") is not supported."), exitCode: -2);
}
// set other port parameters (which have already been validated)
serialPort.Parity = parity;
serialPort.DataBits = dataBits;
serialPort.StopBits = stopBits;
// attempt to open the serial port, deal with failures // attempt to open the serial port, deal with failures
try try
{ {
@ -403,16 +418,10 @@ namespace SimplySerial
autoConnect = AutoConnect.ONE; autoConnect = AutoConnect.ONE;
} }
// validate baud rate, terminate on error // process baud rate, invalid rates will throw exceptions and get handled elsewhere
else if (argument[0].StartsWith("b")) else if (argument[0].StartsWith("b"))
{ {
// these are the baud rates we're supporting for now
string[] availableBaudRates = new string[] { "1200", "2400", "4800", "7200", "9600", "14400", "19200", "38400", "57600", "115200" };
if (availableBaudRates.Contains(argument[1]))
baud = Convert.ToInt32(argument[1]); baud = Convert.ToInt32(argument[1]);
else
ExitProgram(("Invalid baud rate specified <" + argument[1] + ">"), exitCode: -1);
} }
// validate parity, terminate on error // validate parity, terminate on error
@ -580,7 +589,7 @@ namespace SimplySerial
Console.WriteLine(" -list Display a list of available serial (COM) ports"); Console.WriteLine(" -list Display a list of available serial (COM) ports");
Console.WriteLine(" -com:PORT COM port number (i.e. 1 for COM1, 22 for COM22, etc.)"); Console.WriteLine(" -com:PORT COM port number (i.e. 1 for COM1, 22 for COM22, etc.)");
Console.WriteLine(" -baud:RATE 1200 | 2400 | 4800 | 7200 | 9600 | 14400 | 19200 | 38400 |"); Console.WriteLine(" -baud:RATE 1200 | 2400 | 4800 | 7200 | 9600 | 14400 | 19200 | 38400 |");
Console.WriteLine(" 57600 | 115200"); Console.WriteLine(" 57600 | 115200 | (Any valid baud rate for the specified port.)");
Console.WriteLine(" -parity:PARITY NONE | EVEN | ODD | MARK | SPACE"); Console.WriteLine(" -parity:PARITY NONE | EVEN | ODD | MARK | SPACE");
Console.WriteLine(" -databits:VAL 4 | 5 | | 7 | 8"); Console.WriteLine(" -databits:VAL 4 | 5 | | 7 | 8");
Console.WriteLine(" -stopbits:VAL 0 | 1 | 1.5 | 2"); Console.WriteLine(" -stopbits:VAL 0 | 1 | 1.5 | 2");