From e01b1f1f1eeff80a2670e0c7d52619e7dd5a85e2 Mon Sep 17 00:00:00 2001 From: gdisirio Date: Sat, 8 Jan 2011 13:40:44 +0000 Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2617 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- os/ports/RVCT/ARMCMx/chcore_v6m.c | 56 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 os/ports/RVCT/ARMCMx/chcore_v6m.c (limited to 'os/ports/RVCT/ARMCMx/chcore_v6m.c') diff --git a/os/ports/RVCT/ARMCMx/chcore_v6m.c b/os/ports/RVCT/ARMCMx/chcore_v6m.c new file mode 100644 index 000000000..6340df81c --- /dev/null +++ b/os/ports/RVCT/ARMCMx/chcore_v6m.c @@ -0,0 +1,56 @@ +/* + ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio. + + This file is part of ChibiOS/RT. + + ChibiOS/RT is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + ChibiOS/RT is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +/** + * @file RVCT/ARMCMx/chcore_v6m.c + * @brief ARMv6-M architecture port code. + * + * @addtogroup RVCT_ARMCMx_V6M_CORE + * @{ + */ + +#include "ch.h" + +/** + * @brief PC register temporary storage. + */ +regarm_t _port_saved_pc; + +/** + * @brief IRQ nesting counter. + */ +unsigned _port_irq_nesting; + +/** + * @brief System Timer vector. + * @details This interrupt is used as system tick. + * @note The timer must be initialized in the startup code. + */ +CH_IRQ_HANDLER(SysTickVector) { + + CH_IRQ_PROLOGUE(); + + chSysLockFromIsr(); + chSysTimerHandlerI(); + chSysUnlockFromIsr(); + + CH_IRQ_EPILOGUE(); +} + +/** @} */ -- cgit v1.2.3