What I am doing here is, measuring 8 bit of IR sensor data. Here Reflectance_Read(time)
returns the 8 bit IR sensor data in Binary form.
Then taking the middle two sensors value, bit number 3 and 4 from the Data
variable as Right
and Left
variable, I tried to return something like OffRoad
, OnRoad
etc.
#define OffRoad = 0x0
#define OffToLeft = 0x1
#define OffToRight = 0x2
#define OnRoad = 0x3
#define LeftCheck = 0x10
#define RightCheck = 0x08
uint8_t Reflectance_Center(uint32_t time){
uint8_t Data;
uint8_t Left, Right;
Reflectance_Init();
Data = Reflectance_Read(time);
Left = Data&0x10;
Right = Data&0x08;
if(0){}
else if(Left==LeftCheck && Right==RightCheck) return OnRoad;
else if(Left==LeftCheck && Right!=RightCheck) return OffToRight;
else if(Left!=LeftCheck && Right==RightCheck) return OffToLeft;
else if(Left!=LeftCheck && Right!=RightCheck) return OffRoad;
return 0;
}
But I got an error from else if(Left==LeftCheck && Right==RightCheck) return OnRoad;
this line saying error #29: expected an expression
. I can't figure it out what is causing the error.
#define OFFROAD 0x0
#define OFFTOLEFT 0x1
#define OFFTORIGHT 0x2
#define ONROAD 0x3
#define LEFTCHECK 0x10
#define RIGHTCHECK 0x08
I've changed my #define
in the correct form.
My Problem is Solved!
#define LeftCheck = 0x010;
That syntax is incorrect (or well, at least it's probably not what you intend).
Change it to
#define Leftcheck 0x010
Also applies to all other of your defines.