Progamming help with FSBus dll

[sgaert]

Did you write a small programm to test your steppers wih the stepper board?

Here my programm:

#include "stdafx.h"
#include "fsbus.h"

int _tmain(int argc, _TCHAR* argv[])
{
CheckIn();
BOOL b = FsbusOpen("COM3");
FsbusWriteFmtVar(29, 80, 0);
FsbusMux(2000);
FsbusWriteFmtVar(29, 80, 2000);
FsbusMux(2000);
FsbusWriteFmtVar(29, 80, 0);
FsbusMux(2000);
CheckOut();
return 0;
}

[RobiD]

I tested the stepper boards when Dirk sent through some sample code some time ago (He used v1 of the dll to test it though, I think you pointed that out).
So, I know the boards work.
This was what I used (pretty well just minor changes to your code)

#include "stdafx.h"


int _tmain(int argc, _TCHAR* argv[])
{
    CheckIn();
    BOOL b = FsbusOpen("COM1");
    FsbusWriteFmtVar(29, 80, 0);
    FsbusMux(2000);
    FsbusWriteFmtVar(29, 80, 100);
    FsbusMux(2000);
    FsbusWriteFmtVar(29, 80, 0);
    FsbusMux(2000);
    CheckOut();
    return 0;
}

So, how am I doing with the code I've written so far for the ADF.

I am getting 1 compiling error though: steppergauges.cpp(22) : error C2447: '{' : missing function header (old-style formal list?)

This is the code exactly to this minute that is producing the error:

#include "stdafx.h"
#include "fsbus.h"

void cbSteppergauges(int oid, int val, double dval);
#define FS_ADF1RELATIVEBEARING 1
#define FS_ADF1DIALBEARING 2
//#define C_ADFCOMPASSCARD 3
//#define C_ADFBEARINGNEEDLE 4
#define C_RADFROSEADJUST 5

static int ADFroseadjust = 0;

void cbSteppergaugesBuildObjects()
{
	MkFsObject(FS_ADF1RELATIVEBEARING,"ADF Needle",  cbSteppergauges,  0x0C6A, 2, TP_I16,  FS_NORMAL,0);
	MkFsObject(FS_ADF1DIALBEARING,"ADF Compass Card",  cbSteppergauges,  0x0C6C, 2, TP_I16,  FS_NORMAL,0);
	//MkFsbusObject(BTP_V_OUT, C_ADFCOMPASSCARD,"",NULL,30,80,0);
	//MkFsbusObject(BTP_V_OUT, C_ADFBEARINGNEEDLE,"",NULL,29,80,0);
	MkFsbusObject(BTP_ROTARY, C_RADFROSEADJUST,	"",cbModecontrolpanel, 27, 26, 0);
}
void cbSteppergauges(int oid, int val, double dval);
{
	int x;
	switch(oid)
	{
	case FS_ADF1RELATIVEBEARING:
		FsbusWriteFmtVar(29,80,val);
		break;

	case FS_ADF1DIALBEARING:
		FsbusWriteFmtVar(30,80,val);
		break;

	case C_RADFROSEADJUST:
		ADFroseadjust -= val;
		while (ADFroseadjust > 360)
			ADFroseadjust -= 360;
		while (ADFroseadjust <=0)
			ADFroseadjust += 360;
		x = (ADFroseadjust % 360);
		FsWriteInt(FS_ADF1DIALBEARING,x);
		break;
	}
}

Once I get it to compile, should I just test it with the gauge and see what happens?

David

[sgaert]

try that test with the V3 dll. that works in my sample.

Edit: don´t!!!
void cbSteppergauges(int oid, int val, double dval);

has to be
void cbSteppergauges(int oid, int val, double dval)

[RobiD]

Great, compiles now.

So looking back at some code you worked with me on for my Altitude gauge, I can see how 'val' is worked out.

case FS_ALTIMETERFEET:
				val=val/5; // 1000feet for 360° are 200 steps (1000/200)
				//printf("Altimeter Feet %d\n", val);
				FsbusWriteFmtVar(8, 80,val);
				break;

So for the 'val' in the ADF code, I need to work out the number of steps to 360 deg, and divide the value by that as in the sample above. Am I correct?

Thanks

[sgaert]

sounds perfect. if you have a gear dont forget it.
A 200step neadle on a 360° scale don´t perfect.

[RobiD]

I do have gears so I will work it out.

I am trying to print the value of the ADF needle and the ADF rose face, and I don't seem to be getting anything.

Here's what I have (I have the same for the altitude and it prints it fine):

case FS_ADF1RELATIVEBEARING:
val=val/1; // 360° are ? steps
printf("ADF relative bearing %d\n", val);
FsbusWriteFmtVar(29,80,val);
break;

[sgaert]

I am trying to print the value of the ADF needle and the ADF rose face, and I don't seem to be getting anything.

if i understand that right, you whant to have a output like:
Input value: 12345 Needle Position: 67890

right??

[RobiD]

Well, it's not really important to have as I can get these figures from FSInterrogate. I was just wondering why it isn't printing any value at all when I move the needle or the dial face.

Also, the ADF Dial heading works on a simple 0 - 360, but the Needle works on -179.9 to 0 to 179.9 0 being at the top, -179 being to the left and +179 to the right. Will I need to write the needle differently?

[sgaert]

Yes, but i woudl try somethink like

case that with the -179 to 179:
val = val + 179;
than you have your 0 in the -179 positon.
but!!

if (val >=0)
{
val = ( val+1);
}

[RobiD]

Ah ha, then I can use the 360degress divided by how many steps the motor has in 360deg. I would never have thought of that.

Thank you.

So now I have:

case FS_ADF1RELATIVEBEARING:
val = val + 179;
if (val >=0)
{
val = (val+1);
}
printf("ADF relative bearing %d\n", val);
FsbusWriteFmtVar(29,80,val);
break;

Any idea why it's still not showing anything is the DOS box for the print function?