// ----------------------------------------------------------------------------
|
// ----------------------------------------------------------------------------
|
|
|
// SystemC reset signal generator
|
// SystemC reset signal generator
|
|
|
// Copyright (C) 2008 Embecosm Limited <info@embecosm.com>
|
// Copyright (C) 2008 Embecosm Limited <info@embecosm.com>
|
|
|
// Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
|
// Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
|
|
|
// This file is part of the cycle accurate model of the OpenRISC 1000 based
|
// This file is part of the cycle accurate model of the OpenRISC 1000 based
|
// system-on-chip, ORPSoC, built using Verilator.
|
// system-on-chip, ORPSoC, built using Verilator.
|
|
|
// This program is free software: you can redistribute it and/or modify it
|
// This program is free software: you can redistribute it and/or modify it
|
// under the terms of the GNU Lesser General Public License as published by
|
// under the terms of the GNU Lesser General Public License as published by
|
// the Free Software Foundation, either version 3 of the License, or (at your
|
// the Free Software Foundation, either version 3 of the License, or (at your
|
// option) any later version.
|
// option) any later version.
|
|
|
// This program is distributed in the hope that it will be useful, but WITHOUT
|
// This program is distributed in the hope that it will be useful, but WITHOUT
|
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
// License for more details.
|
// License for more details.
|
|
|
// You should have received a copy of the GNU Lesser General Public License
|
// You should have received a copy of the GNU Lesser General Public License
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
// ----------------------------------------------------------------------------
|
// ----------------------------------------------------------------------------
|
|
|
// $Id: ResetSC.cpp 286 2009-02-03 11:19:30Z jeremy $
|
// $Id: ResetSC.cpp 286 2009-02-03 11:19:30Z jeremy $
|
|
|
#include "ResetSC.h"
|
#include "ResetSC.h"
|
|
|
SC_HAS_PROCESS( ResetSC );
|
SC_HAS_PROCESS(ResetSC);
|
|
|
//! Constructor for the reset generator
|
//! Constructor for the reset generator
|
|
|
//! @param name Name of this module, passed to the parent
|
//! @param name Name of this module, passed to the parent
|
//! constructor.
|
//! constructor.
|
//! @param resetCounter Number of cycles of reset to provide.
|
//! @param resetCounter Number of cycles of reset to provide.
|
|
|
ResetSC::ResetSC (sc_core::sc_module_name name,
|
ResetSC::ResetSC(sc_core::sc_module_name name, int _resetCounter):
|
int _resetCounter) :
|
sc_module(name), resetCounter(_resetCounter)
|
sc_module (name),
|
|
resetCounter (_resetCounter)
|
|
{
|
{
|
SC_METHOD (driveReset);
|
SC_METHOD(driveReset);
|
sensitive << clk.neg();
|
sensitive << clk.neg();
|
|
|
} // ResetSC ()
|
} // ResetSC ()
|
|
|
|
|
//! Method to drive the reset port (active low). We will be called as an
|
//! Method to drive the reset port (active low). We will be called as an
|
//! initialization, which can be used to drive the reset low.
|
//! initialization, which can be used to drive the reset low.
|
void
|
void ResetSC::driveReset()
|
ResetSC::driveReset()
|
|
{
|
|
if (resetCounter > 0)
|
|
{
|
{
|
|
if (resetCounter > 0) {
|
rst = 1;
|
rst = 1;
|
rstn = 0;
|
rstn = 0;
|
resetCounter--;
|
resetCounter--;
|
}
|
} else {
|
else
|
|
{
|
|
rst = 0;
|
rst = 0;
|
rstn = 1;
|
rstn = 1;
|
}
|
}
|
} // driveReset()
|
} // driveReset()
|
|
|
|
|
No newline at end of file
|
No newline at end of file
|
