how can shift four 8 bit value to one 32 bit variable

[chandru]

 

hi , i want to shift four 8bit value to one 32 bit varible . i using below format . but the controller only getting first 16 bit value . please any one tell how can i shift

 

 

unsigned char a=0x11,b=0x22,c=0x33,d=0x44;

unsigned long int data=(a<<24)|(b<<16)|(c<<|(d);

 

[AJISH ALFRED]

Hi,

Try this,

 

data = data | a;

data = data << 8;

 

data = data | b;

data = data << 8;

 

data = data | c;

data = data << 8;

 

data = data | d;

 

[VIJAYAKUMAR]

hi chandru

 

 

problem in ur shifting is ur data is unsigned char , so this is the problem in ur shifting 

 take a,b,c,d , same type , long int u ill not get problem, other wise make casting and check 

 

[VIJAYAKUMAR]

hi chandru

 

 

 

unsigned long int data=(unsigned long int )(a<<24)|(unsigned long int )(b<<16)|(unsigned long int )(c<<|(unsigned long int )(d);

 

 

 

try this one it should work !

[Author]

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