GxFpgaReadRegister

Reads a 32-bit FPGA register.

GxFpgaReadRegister (nHandle, dwOffset, pvData, dwSize, pnStatus)

Name	Type	Comments
nHandle	SHORT	Handle for a GX3500 board.
dwOffset	DWORD	The offset in the FPGA’s shared memory space in terms of bytes, must be aligned to 4 bytes address.
pvData	PVOID	A buffer that will contain the data read. Buffer size must be as indicated by the dwSize.
dwSize	DWORD	The number of bytes to be read from the memory location must be multiple of 4.
pnStatus	PSHORT	Returned status: 0 on success, negative number on failure.

This function will read one or more double words from the FPGA’s registers. The offset to be read from must be 4 byte aligned.

The Maximum value of dwOffset is 0x400.

The following reads an buffer of double words from the FPGA’s memory:

DWORD adwData[100];

GxFpgaReadMemory (nHandle, 0x8, &adwData, 400, &nStatus);