Robot stops after some time with Bluetooth

Hi,

First of all, thanks for all the help so far. Now I’m almost at the end of my project, everything works, except the robot stops after some time.

So, basically I am using a mini-ABB with SSC-32 controller on a AH-3 hexapod. I am trying to send it commands serially through bluetooth. I have an IOGear bluetooth serial adapter rovingnetworks.com/documents … -specs.pdf on the Robot’s mini-ABB. I am using SERIN command to recieve data.

serin S_IN,i38400,[Xcomponent,Ycomponent]

I am sending continuous velocity vector commands for Robot to move, for example I send 100 100] continuously from Matlab - I do calculations and scale them properly and the Robot does exactly what it is supposed to do. But with the bluetooth serial adapters, after some time, the transfer of bytes stops. The Firefly usually indicates with yellow light blinking if it is recieving or transferring data and there is no yellow light blinking anymore.
I gotta say that with a serial cable however, everything works fine. BUt then again, if the bluetooth FIrefly is NOT connected to mini-ABB on the Robot, it is connected to any terminal, it does NOT STOP transferring bytes.
So a combination of bluetooth on this microcontroller just stops making it work.

Also, I realized that if I put a pause inbetween the sending values, the robot runs longer, i.e. the transfer of data keeps on going for longer. The longer the pause the further the Robot goes (ie. the longer the data is transferred). So it seems like the bytes being sent, some of them are not being recieved when the program executes and its as if there is a buffer of these unused bytes which when gets full, the transfer stops. The longer the pause, the slower this buffer gets full as the unused bytes are less. (wonder if I am making any sense - coz I don’t see any buffer in documentation, but it just feels like that)

I tried assigning a pin for handshaking, not sure if this is the only change I need to do (there is no flow control on Matlab, or bluetooth side though):

serin S_IN\P11,i38400,[Xcomponent,Ycomponent][code]

[/code]

But this creates more problems for me, as the data recieved is wrong and i have to put long pauses for the Robot to interpret direction of the vector right… and even then, IT STILL STOPS AFTER A WHILE.

Any ideas or thoughts are much appreciated.
Thanks.

Have you tested with something other than the blue tooth adapter and it works fine? I fnot do so.

Also post your code. Any time a program seems to die after some amount of time repeatably, that could indicate a gosub without a return or accessing an array out of bounds(eg you define an array for 100 but access beyond the 100th position trashing some other variable or memory location). This could cause your prgraom to freeze or do other wierd things.

Also if Matlab doesn’t use flow control do NOT use the flow control pin with serin. It will either cause your program to hang or won’t do anything(depends what the state of that pin is).

P.S. I am assuming this is using an AtomPro though I don’t see you state that specifically.

So,as I mentioned everything works perfectly with a Serial Cable instead of bluetooth serial adapter. My Robot is supposed to take that command and go on endlessly as Matlab is sending the command endlessly, and it does so with Serial Cable.

I am using Atom 28.

With serial cable, I have to initially disable all the control lines from Matlab in order for it to work - otherwise it does not even register the first command (I have to say serialPort.RequestTosend = ‘off’ and DataTerminalReady = ‘off’, with bluetooth however, it works without disablign anything from Matlab… and infact using that code of disabling does nothing. Not sure if thats related.

Not sure about this gosub statement, is there a way past it then? Here’s the code, it uses the PS2 version of PowerPod software to create the template, but I am not using PS2:

[code]
; Use Basic Micro ATOM IDE 02.2.1.1
; *** not suitable for IDE 05.3.0.0 (there’s a specific version for this IDE)
; Use Basic Atom 28
; *** not compatible with Basic Atom Pro (new version for BA Pro soon)

;************************************************
;*** Basic Atom with SSC-32 and PS2 DualShock ***
;----------------- 1.36 3DOF-A ------------------
;--------------- PS2 Controller -----------------
;-------------- Round Body (H3-R) ---------------
;********** Bot Board Buzzer support ************
;***** Little Gripper / Pan & Tilt support ******
;**************** Deck support ******************
;************************************************
;** Programmer: Laurent Gay, [email protected] **
;************************************************
;
; let’s say that the 2 switches holes of the H3/H3R is the ‘rear’ of the robot
;
; *** using 3 ‘right’ legs and 3 ‘left’ legs ***
; put the SSC-32 card with the PC serial port looking to ‘Front’ (opposite to H3R switches)
;
; 3 right legs connections :
; Rear Right leg : Hip Horizontal : pin 0, Hip Vertical : pin 1, Knee : pin 2
; Middle Right leg : Hip Horizontal : pin 4, Hip Vertical : pin 5, Knee : pin 6
; Front Right leg : Hip Horizontal : pin 8, Hip Vertical : pin 9, Knee : pin 10
;
; 3 left legs connections :
; Rear Left leg : Hip Horizontal : pin 16, Hip Vertical : pin 17, Knee : pin 18
; Middle Left leg : Hip Horizontal : pin 20, Hip Vertical : pin 21, Knee : pin 22
; Front Left leg : Hip Horizontal : pin 24, Hip Vertical : pin 25, Knee : pin 26
;
; Default mode :
; Move the robot (2 axis translation) with the right joystick
; Turn with the left joystick X axis
; move Up/Down body with the left joystick Y axis
; lock/unlock the height with the left joystick push button (L3)
;
; Body move mode :
; Push ‘select’ button to activate this mode (push ‘select’ again to return to default mode)
; move the body horizontally (2 axis translation) with the right joystick
; the left joystick push button (L3) has a new function now, it selects between 4 control modes for the left joystick:
; 1)- (by default) move the body vertically + rotate around the vertical axis
; 2)- (push L3 to activate) move the body vertically + roll
; 3)- (push L3 again to activate) pitch + rotate around the vertical axis
; 4)- (push L3 again to activate) pitch + roll the body
; pushing L3 again will return to mode 1 (cycling)
;
; go to standby position with the ‘Triangle’ button, press again to go to walk position
; Attack posture with the ‘Cross’ button (*** only possible if legs are not moving )
; All = 1500 posture with the ‘Circle’ button (
only possible if legs are not moving )
; Learning to fly posture with the ‘Square’ button (uh ? nutty ?..it CAN fly…) (
only possible if legs are not moving )
; Change the legs ‘up’ position with the digital Up/Down buttons
;
; Change the gait speed with digital right/left buttons
;
; Presets buttons (only with ‘Default’ mode):
; - R1 => Tall grass
; - L1 => Tile floor
; - R2 => Body low
; - L2 => Default preset
;
; Little Gripper support on Pin 29 (Left/Right) and 30 (Open/Close) (only in ‘Body move’ mode)
; - R1 => Open
; - L1 => Close
; - R2 => Rotate Right
; - L2 => Rotate Left
;
; Deck support on Pin 31 (panning servo)
; allow to handle a deck (for camera, sensors, lights)
; the panning servo will follow the direction it walk
; Additional tilt servo support for 180° Deck on pin 28 (Round body only)
; When using a 180° deck + 2 GP2D12 back to back on a tilt servo
; the tilt servo will incline the ‘usable’ GP2D12 (looking the walking direction) to floor
; when walking at low speed, the angle increase (looking near)
; when walking at full speed, the angle is close to horizontal (looking far)
; when going opposite direction, the angle is mirrored to vertical,
; making the opposite GP2D12 looking near or far
;
; Start button toggles between the ‘knee angle shift’ and ‘normal’ mode
;
; R3 button (right joystick push button) : Horn
;
; you may have to push the Analog Button on a MadCatz Wireless controller (if in sleep mode)
;
;
*********************************************
;
;
;--------------------------------------------------------------------
;-------------Constants
;PS2 Controller / BotBoard I
DAT con P4
CMD con P5
SEL con P6
CLK con P7

DeadZone con 28
PadMode con $79

;Deck
Deck_PulseMin con 600
Deck_PulseMax con 2400

;Little Gripper
LGripLR_PulseMin con 750
LGripLR_PulseMax con 2250
LGripOC_PulseMin con 750
LGripOC_PulseMax con 2250

;Legs
HipH_AngleMin con 21 ;30°
HipH_AngleMax con 107 ;150°
HipH_PulseMin con 910
HipH_PulseMax con 2090

HipV_AngleMin con 25 ;35°
HipV_AngleMax con 103 ;145°
HipV_PulseMin con 960
HipV_PulseMax con 2040

Knee_AngleMin con 36 ;50°
Knee_AngleMax con 107 ;150°
Knee_PulseMin con 1107
Knee_PulseMax con 2090

;****************************************************
; 3DOF-A Leg Dimensions (TibiaAngle constant = 0)
;HipV_HipH con 38 ;1.50" = 38mm (1.50 * 25.4)
;Femur_Length con 57 ;2.25" = 57mm (2.25 * 25.4)
;Tibia_Length con 124 ;4.875" = 124mm (4.875 * 25.4)

; 3DOF-B Leg Dimensions (TibiaAngle constant = 0)
;HipV_HipH con 29 ;1.14" = 29mm (1.14 * 25.4)
;Femur_Length con 57 ;2.25" = 57mm (2.25 * 25.4)
;Tibia_Length con 108 ;4.25" = 108mm (4.25 * 25.4)

; 3DOF-C Leg Dimensions (TibiaAngle constant = 20)
;HipV_HipH con 29 ;1.14" = 29mm (1.14 * 25.4)
;Femur_Length con 57 ;2.25" = 57mm (2.25 * 25.4)
;Tibia_Length con 141 ;5.55" = 141mm (5.55 * 25.4)

; 3DOF-(Old) Leg Dimensions (TibiaAngle constant = 0)
;HipV_HipH con 32 ;1.25" = 32mm (1.25 * 25.4)
;Femur_Length con 70 ;2.75" = 70mm (2.75 * 25.4)
;Tibia_Length con 108 ;4.25" = 108mm (4.25 * 25.4)
;****************************************************

; 3DOF-A Leg Dimensions (TibiaAngle constant = 0)
HipV_HipH con 38 ;1.50" = 38mm (1.50 * 25.4)
Femur_Length con 57 ;2.25" = 57mm (2.25 * 25.4)
Tibia_Length con 124 ;4.875" = 124mm (4.875 * 25.4)

LegUpShiftMin con 30
LegUpShiftMax con 70
KneeShiftPulse con 200 ;range is 0 to 255 (activated by pushing start button, affect the legs when up)
TibiaAngle con 0 ;range is -20 (interior) to 20 (exterior), 0 is vertical, this is ‘all time’ tibia angle

;ACos
;this data is storing values in the EEPROM starting at location 0 as no address are specified.
data 64,64,63,63,63,62,62,62,61,61,61,60,60,60,59,59,|
59,59,58,58,58,57,57,57,56,56,56,55,55,55,54,54,|
54,53,53,53,52,52,52,51,51,51,50,50,50,49,49,49,|
48,48,48,47,47,46,46,46,45,45,45,44,44,44,43,43,|
42,42,42,41,41,41,40,40,39,39,39,38,38,37,37,37,|
36,36,35,35,35,34,34,33,33,32,32,31,31,31,30,30,|
29,29,28,28,27,27,26,25,25,24,24,23,23,22,21,21,|
20,19,19,18,17,16,15,15,14,13,11,10,09,07,05,00

; Don’t use ByteTable instead, it takes too much memory
RRHH con “0” ;Rear Right leg : Hip Horizontal : pin 0
RRHH2 con “0”
RRHV con “0” ;Rear Right leg : Hip Vertical : pin 1
RRHV2 con “1”
RRK con “0” ;Rear Right leg : Knee : pin 2
RRK2 con “2”

MRHH con “0” ;Middle Right leg : Hip Horizontal : pin 4
MRHH2 con “4”
MRHV con “0” ;Middle Right leg : Hip Vertical : pin 5
MRHV2 con “5”
MRK con “0” ;Middle Right leg : Knee : pin 6
MRK2 con “6”

FRHH con “0” ;Front Right leg : Hip Horizontal : pin 8
FRHH2 con “8”
FRHV con “0” ;Front Right leg : Hip Vertical : pin 9
FRHV2 con “9”
FRK con “1” ;Front Right leg : Knee : pin 10
FRK2 con “0”

RLHH con “1” ;Rear Left leg : Hip Horizontal : pin 16
RLHH2 con “6”
RLHV con “1” ;Rear Left leg : Hip Vertical : pin 17
RLHV2 con “7”
RLK con “1” ;Rear Left leg : Knee : pin 18
RLK2 con “8”

MLHH con “2” ;Middle Left leg : Hip Horizontal : pin 20
MLHH2 con “0”
MLHV con “2” ;Middle Left leg : Hip Vertical : pin 21
MLHV2 con “1”
MLK con “2” ;Middle Left leg : Knee : pin 22
MLK2 con “2”

FLHH con “2” ;Front Left leg : Hip Horizontal : pin 24
FLHH2 con “4”
FLHV con “2” ;Front Left leg : Hip Vertical : pin 25
FLHV2 con “5”
FLK con “2” ;Front Left leg : Knee : pin 26
FLK2 con “6”

;Little Gripper Pin
LGripLR Con “2” ;Little Gripper Left/Right : pin 29
LGripLR2 Con “9”
LGripOC Con “3” ;Little Gripper Open/close : pin 30
LGripOC2 Con “0”

; Deck Pin
DeckP Con “3” ;Deck Panning servo : pin 31
DeckP2 Con “1”

; Additional Tilt servo for 180° Deck
DeckTilt Con “2”
DeckTilt2 Con “8”

;--------------------------------------------------------------------
;-------------Variables
Index var Byte
DualShock var Byte(7)
DS2Mode var Byte
LastButton var Byte(2)
Steps var Byte
FlipFlap var Bit
FlagOff var Bit
MovesDelay var Sbyte
HeightAdjust var Bit

HeightShift var Sbyte(6)
KneeShift var Byte(7)

Steering var Sbyte
Height var Sbyte
LastHeight var Sbyte
HeightLimit var Byte
XSpeed var Sbyte
YSpeed var Sbyte
Roll var Sbyte
Pitch var Sbyte
Rotate var Sbyte(6)
DCoord var Byte
DAngle var Byte
NbSteps var Byte
GaitSpeed var Byte
GaitSpeedTmp var Byte
StepFlag var Byte

TmpXPos var Long
TmpYPos var Long
TmpZPos var Long
TmpDistance var Long
TmpSEW var Word
TmpSEWSEW var Long
TmpCos var Long
TmpAngle var Sbyte

XPos var Sword(6)
YPos var Sword(6)
ZPos var Sword(6)
XPos2 var Sword(6)
YPos2 var Sword(6)
ZPos2 var Sword(6)
Distance var Sword

HipH_Angle var Sbyte
HipV_Angle var Sword
Knee_Angle var Sword

HipH_Pulse var Word(6)
HipV_Pulse var Word(6)
Knee_Pulse var Word(6)

LittleGripOCPulse var Word
LittleGripLRPulse var Word
Deck_Pulse var Word
DeckTilt_Pulse var Word

LegUpShift var Byte
GaitKind var Bit
Freeze var Bit
Tripod var Bit
LockLegs var Bit
LeftStickMode var Byte

;---------------Added Variables
First var byte ;variable to hold serial input
Second var byte
magnitude var SWord
;counterStraight var byte
anew var SWord
bnew var SWord
Xcomponent var Sbyte
Ycomponent var Sbyte

;Ycomponent var SWord
; changed all to SWord coz apparently Longs cannot handle sign - given wrong in the manual.

;--------------------------------------------------------------------
;***************
;*** Program ***
;***************

;-------------Init
clear
; this clear command will clear all the variables in the memory - good thing to do when starting a program

;clk is a variable that has to be assigned to a PIN and then ‘high’ will set it as an output of 5 volts
;usually used for LEDs
high CLK

;this is a variable of two bytes(array) only LastButton, 255 would mean all 1s
LastButton(0) = 255
LastButton(1) = 255

;next two variables are both words, words can be 0 to 65535. This is 1500 - what does it mean?
LittleGripOCPulse = 1500
LittleGripLRPulse = 1500

;ABS gives the absolute value, tibiaAngle is a constant 0. HeightLimit is a byte
HeightLimit = 25 - ABS(TibiaAngle / 2)

;pausing for 500 miliseconds?
pause 500

;-------------Init SSC-32 with pulse offsets-------------------------------------------------------------FIGURE OUT
serout p15,i38400,"#", |
RRHH,RRHH2,“po0 #”,RRHV,RRHV2,“po-100 #”,RRK,RRK2,“po-33 #”, |
MRHH,MRHH2,“po5 #”,MRHV,MRHV2,“po-100 #”,MRK,MRK2,“po-100 #”, |
FRHH,FRHH2,“po2 #”,FRHV,FRHV2,“po0 #”,FRK,FRK2,“po0 #”, |
RLHH,RLHH2,“po0 #”,RLHV,RLHV2,“po-79 #”,RLK,RLK2,“po-74 #”, |
MLHH,MLHH2,“po0 #”,MLHV,MLHV2,“po-12 #”,MLK,MLK2,“po40 #”, |
FLHH,FLHH2,“po-81 #”,FLHV,FLHV2,“po-100 #”,FLK,FLK2,“po0”,13]

;SSC-32 -> H3 engine
gosub H3Init
Sound 9,[100\4235, 200\4435]
;counterStraight = 0
;Xvalue = 0
;Yvalue = 0
;--------------------------------------------------------------------
;-------------Main loop
main

low SEL


serin S_IN\P11,i38400,[Xcomponent,Ycomponent]




                DualShock(1) = 255 ; need this to be this
	DualShock(2) = 255 ; need this to be this in order to disable other things - it won't work without this

	DualShock(5) = 128 ; so that steering is 0
	DualShock(6) = 128

XSpeed = Xcomponent
YSpeed = Ycomponent

high SEL
pause 1	


;**********************************************************************
; R1-L1-R2-L2 presets code
;
; to change Body Height (range is -25 (body up) to 25 (body down)) :
;Height = 10 ; for example
;
; to change Leg Up Shift (range is 20 (close to floor) to 70 (about 2.5 inches from floor))
;LegUpShift = 30 ; for example
;
; to change Gait Speed (range is 3 (fast) to 20 (very slow))
;GaitSpeed = 4 ; for example

If LockLegs then NoPresets
if (DualShock(2).bit3 = 0) and LastButton(1).bit3 then	;R1 Button test
	Height = -25		; tall grass
	LegUpShift = 70
	GaitSpeed = 10
elseif (DualShock(2).bit2 = 0) and LastButton(1).bit2	;L1 Button test
	Height = 5			; tile floor
	LegUpShift = 30
	GaitSpeed = 3
elseif (DualShock(2).bit1 = 0) and LastButton(1).bit1	;R2 Button test
	Height = 25			; Body low
	LegUpShift = 35
	GaitSpeed = 4
elseif (DualShock(2).bit0 = 0) and LastButton(1).bit0	;L2 Button test
	Height = 0			; Default preset
	LegUpShift = 35
	GaitSpeed = 4
else
	goto NoPresets
endif

HeightAdjust = 0
LegUpShift = (LegUpShift max LegUpShiftMax) min LegUpShiftMin 
GaitKind = LegUpShift > 45
GaitSpeedTmp = GaitSpeed max 20
MovesDelay = 8	

NoPresets
;**********************************************************************

if (DualShock(2).bit4 = 0) and LastButton(1).bit4 then	;Triangle Button test
	FlagOff = FlagOff ^ 1
	if FlagOff then
		gosub All1500
		Gosub InitPos
		Nap 3
		for Index = 0 to 31
			serout p15,i38400,"#",DEC Index,"P0"]
		next
		serout p15,i38400,[13]
	else
		gosub H3Init
	endif
endif

if FlagOff then
	nap 3
	goto OffEnd
endif

if (MovesDelay <= 0) or LockLegs then
	if (DualShock(2).bit5 = 0) and LastButton(1).bit5 then	;Circle Button test
		gosub All1500
	endif


endif

if (DualShock(1).bit0 = 0) and LastButton(0).bit0 then	;Select Button test
	LockLegs = LockLegs ^ 1
	Sound 9,[100\(2000 + LockLegs * 1000)]
	gosub FlatBody
endif

if (DualShock(1).bit3 = 0) and LastButton(0).bit3 then	;Start Button test
	KneeShift(6) = KneeShift(6) ^ KneeShiftPulse
	Sound 9,[100\(800 + KneeShift(6))]
endif

if (DualShock(1).bit1 = 0) and LastButton(0).bit1 then	;L3 Button test
	if LockLegs then
		LeftStickMode = (LeftStickMode + 1) & 3
		gosub FlatBody
	else
		HeightAdjust = HeightAdjust ^ 1
	endif
	Sound 9,[100\3500]
endif

if (DualShock(1).bit2 = 0) and LastButton(0).bit2 then	;R3 Button test (Horn)
	Sound 9,[800\392, 600\370, 200\0, 800\330, 600\294, 200\0, 300\330, 100\0, 300\330]
endif

if DualShock(1).bit4 = 0 then 	;Up Button test
	LegUpShift = (LegUpShift + 1) max LegUpShiftMax	
elseif DualShock(1).bit6 = 0	;Down Button test
	LegUpShift = (LegUpShift - 1) min LegUpShiftMin	
else
	goto NoSound
endif

GaitKind = LegUpShift > 45
Sound 9,[20\(LegUpShift * 10 + 400 + GaitKind * 200)]
MovesDelay = 8

NoSound

if (DualShock(1).bit5 = 0) and LastButton(0).bit5 then 	;Right Button test
	GaitSpeedTmp = (GaitSpeedTmp + 1) max 20
elseif (DualShock(1).bit7 = 0) and LastButton(0).bit7	;Left Button test
	GaitSpeedTmp = (GaitSpeedTmp - 1) min 3
else
	goto NoSound1
endif
Sound 9,[20\(50-GaitSpeedTmp) * 35 + 400]
MovesDelay = 8

NoSound1

GaitSpeed = GaitSpeedTmp min (3 + GaitKind)

for Index = 3 to 6
	if DualShock(Index) > (128 + DeadZone) then
		DualShock(Index) = DualShock(Index) - DeadZone/2
	elseif DualShock(Index) < (128 - DeadZone)
		DualShock(Index) = DualShock(Index) + DeadZone/2
	else
		DualShock(Index) = 128
	endif
next







StepFlag = (GaitSpeedTmp - 2) max 3
if HeightAdjust or LockLegs then
	Height = LastHeight + (((DualShock(6) - 128) / 5) - LastHeight) / StepFlag; Left Stick Vertical
endif

Height = (Height Max HeightLimit) min - HeightLimit

;H3
if Steering or (Height <> LastHeight) or YSpeed or XSpeed or LockLegs then
MovesDelay = 8
endif

if MovesDelay > 0 then
	LastHeight = Height
	DCoord = SQR(XSpeed * XSpeed + YSpeed * YSpeed)
	if XSpeed > 0 then
		TmpCos = XSpeed * 127 / DCoord
	else
		TmpCos = -((-XSpeed) * 127 / DCoord) ; **** due to bug in Basic ****
	endif
	gosub ACos
	DAngle = TmpAngle
	if YSpeed > 0 then
		DAngle = 256 - DAngle
	endif

	DCoord = DCoord max (128 - ABS(Height) - ABS(TibiaAngle * 2))

	; 180° Deck Code
	if (Dangle < 64 or Dangle > 191) and (DCoord > 0) then
		DeckTilt_Pulse = 1680 - Dcoord
	else
		DeckTilt_Pulse = 1380 + Dcoord
	endif
	Deck_Pulse =  ((Deck_PulseMax - Deck_PulseMin) * ((DAngle + 64 ) & $7F)) / 127 + Deck_PulseMin

	; 360° Deck Code
	;Deck_Pulse = ((Deck_PulseMax - Deck_PulseMin) * DAngle) / 255 + Deck_PulseMin

	Steps = Steps + 1
	if Steps > NbSteps then
		Steps = 1
		FlipFlap = FlipFlap ^ 1
		NbSteps = GaitSpeed
	endif

	if LockLegs then
		if LeftStickMode > 0 then ;Body roll and pitch
			if (leftStickMode & 1) then
				Roll = Roll + (Steering - Roll) / StepFlag
				Steering = 0
			else
				Roll = 0
			endif

			if (leftStickMode & 2) then
				Pitch = Pitch + (Height - Pitch) / StepFlag
				Height = 0
			else
				Pitch = 0
			endif

			HeightShift(0) = Roll/10
			HeightShift(2) = HeightShift(0)
			HeightShift(3) = -HeightShift(0)
			HeightShift(5) = HeightShift(3)

			HeightShift(0) = ((HeightShift(0) + Pitch) max HeightLimit) min -HeightLimit
			HeightShift(3) = -HeightShift(0)
			HeightShift(2) = ((HeightShift(2) - Pitch) max HeightLimit) min -HeightLimit
			HeightShift(5) = -HeightShift(2)

			HeightShift(1) = HeightShift(0) + HeightShift(2)
			HeightShift(4) = HeightShift(3) + HeightShift(5)
		endif
		LittleGripOCPulse = ((LittleGripOCPulse + (DualShock(2).bit3 * 50) - (DualShock(2).bit2 * 50)) |
			min LGripOC_PulseMin) max LGripOC_PulseMax
		LittleGripLRPulse = ((LittleGripLRPulse + (DualShock(2).bit1 * 50) - (DualShock(2).bit0 * 50)) |
			min LGripLR_PulseMin) max LGripLR_PulseMax
		GaitSpeedTmp = StepFlag + 2
	else
		StepFlag = NbSteps - Steps + 1
	endif

	for Index = 0 to 5
		XPos2(Index) = -(DCoord * COS(DAngle + (Index * 43 + 21)) / 300) ; 43 => 60 degrees
		ZPos2(Index) = -(DCoord * SIN(DAngle + (Index * 43 + 21)) / 300) ; 43 => 60 degrees
	next

	Tripod = FlipFlap
	gosub AorB_Down

	Freeze = Steps < (NbSteps - GaitKind)
	Tripod = FlipFlap ^ 1
	gosub AorB_Up	

	for Index = 0 to 5

		;Distance and HipH_Angle with XZ
		if Zpos(Index) > 0 then
			Distance = SQR((XPos(Index) * XPos(Index) + ZPos(Index) * ZPos(Index)) / 4) * 2
		else
			Distance = SQR((XPos(Index) * XPos(Index) |
				+ (-ZPos(Index)) * (-ZPos(Index))) / 4) * 2 ; **** due to bug in Basic ****
		endif
		if ZPos(Index) > 0 then
			TmpCos = ZPos(Index) * 127 / Distance
		else
			TmpCos = -(-ZPos(Index) * 127 / Distance) ; **** due to bug in Basic ****
		endif

		Distance = Distance + TibiaAngle ; Tibia angle for special legs (3DOF-C)

		Gosub ACos
		HipH_Angle = (TmpAngle max HipH_AngleMax) min HipH_AngleMin
		;----------

		;Set Angle
		TmpXPos = XPos(Index) * 127
		TmpYPos = (-((-YPos(Index)) * 127)) max 0 ; **** due to bug in Basic ****
		if ZPos(Index) > 0 then
			TmpZPos = ZPos(Index) * 127
		else
			TmpZPos = -((-ZPos(Index)) * 127) ; **** due to bug in Basic ****
		endif
		TmpDistance = ((Distance - HipV_HipH) * 127) min 0
		
		TmpSEWSEW = ((-TmpYPos) * (-TmpYPos) + TmpDistance * TmpDistance) / 16129 ; **** due to bug in Basic ****
		TmpSEW = SQR(TmpSEWSEW)

		TmpCos = (Femur_Length * Femur_Length + Tibia_Length * Tibia_Length - TmpSEWSEW)
		if TmpCos > 0 then
			TmpCos = TmpCos * 127 / (2 * Femur_Length * Tibia_Length)
		else
			TmpCos = -((-TmpCos) * 127 / (2 * Femur_Length * Tibia_Length)) ; **** due to bug in Basic ****
		endif 
		gosub ACos
		Knee_Angle = (TmpAngle max Knee_AngleMax) min Knee_AngleMin

		TmpCos = -TmpYPos / TmpSew
		gosub ACos
		HipV_Angle = TmpAngle

		TmpCos = (Femur_Length * Femur_Length - Tibia_Length * Tibia_Length + TmpSEWSEW) 
		if TmpCos > 0 then
			TmpCos = TmpCos * 127 / (2 * Femur_Length * TmpSEW) 
		else
			TmpCos = -((-TmpCos) * 127 / (2 * Femur_Length * TmpSEW)) ; **** due to bug in Basic ****
		endif
	    gosub ACos
	    HipV_Angle = ((TmpAngle + HipV_Angle) max HipV_AngleMax) min HipV_AngleMin
	    ;----------

		HipH_Angle = HipH_Angle + Rotate(Index)
		
		HipH_Pulse(Index) =  (((HipH_PulseMax - HipH_PulseMin) * (HipH_Angle - HipH_AngleMin) |
			/ (HipH_AngleMax - HipH_AngleMin) + HipH_PulseMin) max HipH_PulseMax) min HipH_PulseMin

		HipV_Pulse(Index) = (((HipV_PulseMax - HipV_PulseMin) * (HipV_Angle - HipV_AngleMin) |
			/ (HipV_AngleMax - HipV_AngleMin) + HipV_PulseMin) max HipV_PulseMax) min HipV_PulseMin

		Knee_Pulse(Index) = (((Knee_PulseMax - Knee_PulseMin) * (Knee_Angle - Knee_AngleMin) |
			/ (Knee_AngleMax - Knee_AngleMin) + Knee_PulseMin) max Knee_PulseMax) min Knee_PulseMin
		Knee_Pulse(Index) = 3000 - Knee_Pulse(Index) - KneeShift(Index) * 2
	next

	serout p15,i38400,"#",RRHH,RRHH2,"P",DEC HipH_Pulse(0),"#",RRHV,RRHV2,"P",DEC HipV_Pulse(0), |
		"#",RRK,RRK2,"P",DEC Knee_Pulse(0),"#",FRHH,FRHH2,"P",DEC HipH_Pulse(2), |
		"#",FRHV,FRHV2,"P",DEC HipV_Pulse(2),"#",FRK,FRK2,"P",DEC Knee_Pulse(2), |
		"#",MLHH,MLHH2,"P",DEC HipH_Pulse(4),"#",MLHV,MLHV2,"P",DEC 3000 - HipV_Pulse(4), |
		"#",MLK,MLK2,"P",DEC 3000 - Knee_Pulse(4),"#",MRHH,MRHH2,"P",DEC HipH_Pulse(1), |
		"#",MRHV,MRHV2,"P",DEC HipV_Pulse(1),"#",MRK,MRK2,"P",DEC Knee_Pulse(1), |	
		"#",RLHH,RLHH2,"P",DEC HipH_Pulse(5),"#",RLHV,RLHV2,"P",DEC 3000 - HipV_Pulse(5), |
		"#",RLK,RLK2,"P",DEC 3000 - Knee_Pulse(5),"#",FLHH,FLHH2,"P",DEC HipH_Pulse(3), |	
		"#",FLHV,FLHV2,"P",DEC 3000 - HipV_Pulse(3),"#",FLK,FLK2,"P",DEC 3000 - Knee_Pulse(3), |
		"#",DeckP,DeckP2,"P",DEC Deck_Pulse,"#",DeckTilt,DeckTilt2,"P",DEC DeckTilt_Pulse, |
		"#",LGripOC,LGripOC2,"P",DEC LittleGripOCPulse,"#",LGripLR,LGripLR2,"P",DEC LittleGripLRPulse,"T190",13]
else
	nap 3
	if MovesDelay < -17 then
		MovesDelay = (NbSteps - GaitKind) - Steps + 1
	EndIf	
endif
MovesDelay = MovesDelay - 1

OffEnd
LastButton(0) = DualShock(1)
LastButton(1) = DualShock(2)

;counterStraight = counterStraight + 1
goto main

;--------------------------------------------------------------------
;-------------Sub H3 Init
H3Init
LockLegs = 0
NbSteps = 4
GaitSpeedTmp = NbSteps
LegUpShift = 35

for Index = 0 to 5
	XPos(Index) = HipV_HipH + Femur_Length
	YPos(Index) = - Tibia_Length
	ZPos(Index) = 0
next

Gosub InitPos
MovesDelay = 8
; then All1500

;-------------Sub All1500
All1500
HeightAdjust = 1
height = 0
LastHeight = 0

for Index = 0 to 27	;preserve servo 28 (Deck Tilt),29 and 30 (Little Gripper),31 (Deck)
	serout p15,i38400,"#",DEC Index,"P1500"]
next
serout p15,i38400,"T576",13]

nap 5

Steps = NbSteps
; then Flat Body

;-------------Sub Flat Body
FlatBody
Roll = 0
Pitch = 0
for Index = 0 to 5
HeightShift(Index) = 0
next

return	

;-------------Sub InitPos
InitPos
serout p15,i38400,"#",RRHV,RRHV2,“P2100#”,RRK,RRK2,“P1800#”,MRHV,MRHV2,“P2100#”,MRK,MRK2,“P1800#”, |
FRHV,FRHV2,“P2100#”,FRK,FRK2,“P1800#”,RLHV,RLHV2,“P900#”,RLK,RLK2,“P1200#”,MLHV,MLHV2,“P900#”, |
MLK,MLK2,“P1200#”,FLHV,FLHV2,“P900#”,FLK,FLK2,“P1200T1152”,13]
nap 5
serout p15,i38400,"#",RRHH,RRHH2,“P1500#”,MRHH,MRHH2,“P1500#”,FRHH,FRHH2,“P1500#”, |
RLHH,RLHH2,“P1500#”,MLHH,MLHH2,“P1500#”,FLHH,FLHH2,“P1500T576”,13]
nap 5

return

;-------------Sub Arc Cosinus
ACos
TmpCos = (TmpCos max 127) min -127
if TmpCos < 0 then
read -TmpCos,TmpAngle
TmpAngle = 127 - TmpAngle
else
read TmpCos,TmpAngle
endif

return

;-------------Tripod ‘A’ (tripod = 0) or ‘B’ (Tripod = 1) Down
AorB_Down
for Index = 0 + Tripod to 4 + Tripod Step 2
KneeShift(Index) = 0
Rotate(Index) = Rotate(Index) + (Steering/5 - Rotate(Index))/StepFlag
YPos(Index) = -Tibia_Length + Height + HeightShift(Index)
XPos(Index) = XPos(Index) + (XPos2(Index) - (XPos(Index) - (HipV_HipH + Femur_Length)))/StepFlag
ZPos(Index) = ZPos(Index) + (ZPos2(Index) - ZPos(Index))/StepFlag
next

return

;-------------Tripod ‘A’ (tripod = 0) or ‘B’ (Tripod = 1) Up
AorB_Up
if LockLegs then AorB_Down ;Goto sub AorB_Down and return directly from it to main loop

if (Steps = NbSteps) and GaitKind then
	StepFlag = NbSteps
	goto AorB_Down	;Goto sub AorB_Down and return directly from it to main loop
else
 	StepFlag = StepFlag - GaitKind - 1
endif	

for Index = 0 + Tripod to 4 + Tripod Step 2
	if (Steps > 1) and (Steps < (NbSteps - GaitKind - 1)) then 
		KneeShift(Index) = KneeShift(6)
	else
		KneeShift(Index) = 0
	endif
	Rotate(Index) = Rotate(Index) + (-Steering/5 - Rotate(Index))/StepFlag
	YPos(Index) = -Tibia_Length + Height + (LegUpShift * Freeze)
	XPos(Index) = XPos(Index) + (-XPos2(Index) - (XPos(Index) - (HipV_HipH + Femur_Length)))/StepFlag
	ZPos(Index) = ZPos(Index) + (-ZPos2(Index) - ZPos(Index))/StepFlag
next

return	
[/code]

And also, I mentioned that bluetooth itself does not have any problems transferring data endlessly if it is NOT connected to my robot. As I said one serial adapter is on the computer and one on my Robot – if I take the one on the Robot and attach it to another PC, and read what I am sending through a terminal… it will never stop transferring - the way I want it to be.

so actually, I don’t really think the program is dying. But the microcontroller is doing something for sure to make the data transfer on Bluetooth stop. Because the Robot does not move coz it does not recieve any more data from the serial adapter.