Reading a register bit

[ravichobey]

Hi All,

I am newbie to this forum.

My Question is:

I am using a 16 bit register in FPGA code.The address of that register is 0x77200000 and i want to read the third register of that 16 bit register.

How it is possible?

Thanks for your support,

Regards,
ravi

[Banfa]

I am using a 16 bit register in FPGA code.The address of that register is 0x77200000 and i want to read the third register of that 16 bit register.

Do you mean you want to read the 3rd bit?

You can read the full 16bit register into a variable

   unsigned short reg = *(unsigned short *)0x77200000;
 

Then use the bitwise operators ( | & ^ ~ << >> ) to isolate the third bit.