I've got this the following code snippets... when compiling, I kept on getting error: implicit declaration of function. This "eeprom_memory_update_byte" came from avr/eeprom.h. What I am trying to update the atmel processor eeprom memory (not write, but to update) In commands.c (in a function):

bool Update_EEPROM_Memory_byte(byte val1, byte val2)
{
uint8_t eepromAddr = val1;
uint8_t eepromVal = val2;

eeprom_memory_update_byte(eepromAddr, eepromVal);
return 1;
}

In eeprom.h

void eeprom_update_byte (uint8_t *__p, uint8_t __value);

In eeprom.c

bool eeprom_memory_update_byte(uint8_t eeprom_addr, uint8_t eepromValue)
{
eeprom_update_byte((uint8_t*) eeprom_addr, eepromValue);

uint8\_t eepromVal = eeprom\_read\_byte(( uint8\_t \*) eeprom\_addr);
    
if (eepromValue == eepromVal)
  return 1;
else
  return 0;

}

please help!

As I said on the first post: Local Service.

Help me to clarify the "account" you are speaking of? I'm on Administrator account.

I am currently working on monitoring the folder on desktop. When the hex data files are dragged into the "Monitored" folder, it would automatically start to analyze the hex files and create the interpreted files into other folder. I have created the Local Service process "Interpreter Service". The thing is that when I started the service then it abruptly stopped running. Upon checking Event Viewer, it reported the error: Service cannot be started. System.ArgumentException: The directory name C:\Users\RBWorkstation\Desktop\Monitored Folder\ is invalid. at System.IO.FileSystemWatcher.set_Path(String value) at InterpreterService.UM_InterpreterService.OnStart(String[] args) at System.ServiceProcess.ServiceBase.ServiceQueuedMainCallback(Object state) The folder is right on my desktop! So anyone have any suggestion on how to fix this so this service can find the folder? Thanks! ~ Ron Boucher

Thanks! I'm learning more depth on the use of DataTable... I do appreciate some help with this. You've answered my questions.

I plan to write the "res" value into text file (also Excel file.) I used this example as to see the quick result of the res value output through MessageBox before I start writing to the file.

Updated code... Seems to be working... Any suggestion for a better approach?

DataTable dataTable = new DataTable();

dataTable.Columns.Add("Variable", typeof(string));
dataTable.Columns.Add("Hex Value", typeof(Int64));
dataTable.Columns.Add("Value", typeof(string));
dataTable.Columns.Add("Hide", typeof(bool));

dataTable.Rows.Add("Ronald", 0x0, "Value = 0", false);
dataTable.Rows.Add("Ronald", 0x1, "Value = 1", true);
dataTable.Rows.Add("Ronald", 0x2, "Value = 2", false);
dataTable.Rows.Add("Ronald", 0x4, "Value = 4", true);
dataTable.Rows.Add("Ronald", 0x8, "Value = 8", false);
dataTable.Rows.Add("Ronald", 0x16, "Value = 16", false);
dataTable.Rows.Add("Ronald", 0x32, "Value = 32", false);
dataTable.Rows.Add("Ronald", 0x64, "Value = 64", true);
dataTable.Rows.Add("Ronald", 0x128, "Value = 128", false);
dataTable.Rows.Add("Ronald", 0xFF, "Value = 255", true);

try
{
DataRow selectedRow = dataTable.Select("").FirstOrDefault(x => (Int64)x["Hex Value"] == Convert.ToInt64(tb_Input.Text, 16));
lbl_Result.Text = selectedRow["Value"].ToString();
}
catch
{
lbl_Result.Text = "Unknown";
}

DataRow[] drArrRow = dataTable.Select("Hide = False");
DataTable filteredDataTable = new DataTable();

filteredDataTable.Columns.Add("Variable", typeof(string));
filteredDataTable.Columns.Add("Value", typeof(string));

foreach (DataRow dr in drArrRow)
{
filteredDataTable.Rows.Add(dr["Variable"], dr["Value"]);
}

string res = String.Join(Environment.NewLine, filteredDataTable.Rows.OfType().Select(x => String.Join(" ; ", x.ItemArray)));

MessageBox.Show(res);

I've got it... Now one question hasn't been answered. How do I generate output showing only the "Variable" and "Value" columns?

What I am trying to accomplish is that I am making the datatable to interpret large data. I only wanted to print out the header, then the data. Also only to show "Variable" and "Value" columns. I'm not sure how to weed out the "Hex Value" column. Also to list the rows that are (Hidden = false). I'm not sure how to accomplish this. On the bottom code (with variable "res" does show all of the rows with all of the columns, but no header... :sigh:

DataTable dataTable = new DataTable();
dataTable.Columns.Add("Variable", typeof(string));
dataTable.Columns.Add("Hex Value", typeof(Int64));
dataTable.Columns.Add("Value", typeof(string));
dataTable.Columns.Add("Hidden", typeof(bool));

dataTable.Rows.Add("Ronald", 0x0, "Value = 0", false);
dataTable.Rows.Add("Ronald", 0x1, "Value = 1", false);
dataTable.Rows.Add("Ronald", 0x2, "Value = 2", true);
dataTable.Rows.Add("Ronald", 0x4, "Value = 4", true);
dataTable.Rows.Add("Ronald", 0x8, "Value = 8", false);
dataTable.Rows.Add("Ronald", 0x16, "Value = 16", true);
dataTable.Rows.Add("Ronald", 0x32, "Value = 32", false);
dataTable.Rows.Add("Ronald", 0x64, "Value = 64", false);
dataTable.Rows.Add("Ronald", 0x128, "Value = 128", false);
dataTable.Rows.Add("Ronald", 0xFF, "Value = 255", true);

try
{
DataRow selectedRow = dataTable.Select("").FirstOrDefault(x => (Int64)x["Hex Value"] == Convert.ToInt64(tb_Input.Text, 16));
lbl_Result.Text = selectedRow["Value"].ToString();
}
catch
{
lbl_Result.Text = "Unknown";
}

string res = String.Join(Environment.NewLine, dataTable.Rows.OfType().Select(x => String.Join(" ; ", x.ItemArray)));

MessageBox.Show(res);

Thanks! I'll get that fixed right away.

Can you explain why? Is this the step that you're referring to: 1) right click on "Reference" node 2) Add Reference 3) Click on "Projects" tab 4) Select the dlls to reference

Hmm I like the 2nd suggestion (external dll). That would sure help out!

I'm using Visual Studio 2010. When I was compiling the execuables that contains 19 different dlls. Each dlls have dependency on other dlls. I just got bumped into a couple of incorrect dlls' date of creation. For example, one dll 'error.dll' is being depended by half of the dlls which consists of error codes and its translations. some of the dlls has error.dll referenced being pointed to the error/bin/debug and others was pointed to error/bin/release. When compiling overall solutions, the exe ended up having the wrong version of error.dll. Is there a better way to control the location of reference files... I mean a way to test or ensure that these references are pointed in their right places to ensure that these dlls are pulled correctly? Thanks... respond back if you have any questions or answers. ~ Ron Boucher

Since that I have created about 15 separate libraries for the main exe, they are in the same folder as exe. I was thinking of putting those class libraries (DLLs) into a folder called "Libraries" in the main exe folder, so that the directory will look cleaner and organized. How can I do that so that the exe file can load libraries from "Libraries" folder? I'm using Visual Studio 2010 Premium.

Thanks! Now that the solution is much easier to work on and compiling! THANKS A HEAP!

Found it.. but not sure how to add items in project dependencies. The thing is that the those dlls are seperated (independent) in other folders... I think I need to put those dll projects in the exe project. Am I right?

I am not sure if there is an easy way to compile the codes. I have created 1 exe and 4 dlls. The exe relies (depends) on 4 dlls ('a', 'b', 'c', 'd'). Illustration is as shown below:

exe -> 'a' -> 'c' -> 'd'
-> 'b' ----^

The 'd' dll is the lowest level. The 'd' is referenced in 'c' dll. and so on. Also that 'a' and 'b' dlls are referenced in exe. Now when making changes in 'c' dll, I would compile the exe but the 'c' dll remains previous version, not updated when compiling the exe. I would have to compile each dlls ('a', and 'b') then the exe so that the updated 'c' dll is passed over to the exe. Now for the question is there the easy way to compile those dlls at once? Thanks! : Forgot to add that I'm using Visual Studio 2010

... Or the other way to perform "stimulated" serial port communication?

I am using Visual Studio premium 2010

Is there a way to override SerialPort.ReadExisting() method? I'm working on the unit testing on the software that involves with Serial Port communication, using "test doubles". Anyone can point me any suggestions? Thanks!