IOTester connects embedded I/O hardware to the PC and enable the hardware to be accessed and controlled direct from an ordinary PC program application written in C or C++. From your PC program do basic low-level access for RD, WR, AND, OR, XOR operations directly on target I/O hardware. Also support for embedded target interrupt handling by functions on the PC, and DMA like block transfers between the target I/O hardware and data buffers in the PC application.