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ArchIoNode

This node is meant to provide the memory IO operation of the platform. It is supposed to implement write32 and read32 methods.

ArchIoNode is meant to be inherited by a top AddrmapNode.

By default a default ArchIoNode is provided and will be copied to the output directory. The default node provides a typical memory IO operations for a CPU. However it is possible to override this node in cases of:

  • Using generated halcpp drivers as a UVM-RAL for SystemC-UVM or C++ testbenches.
  • For debugging, where you might want to replace memory IO with console prints
  • For Emulation, where you might want to model memory IO operations and side effects in the platform.
  • Or Simply if the provided ArchIoNode is not adequate.

Overriding ArchIoNode​

In order to override the default class the easiest way to do it is following:

#define _ARCH_IO_H_

class ArchIoNode {
public:
// ... Your custom implementation
};

#include "soc_hal.h"

The easiest solution is to define macro _ARCH_IO_H_ before including the HAL driver header file (in this case soc_hal.h). After that you need to provide your custom implementation for ArchIoNode.