rename the not-yet-to-use file

2014-03-28 18:40:56 +07:00
parent 7ddef973b6
commit 1f29229f96
1 changed files with 0 additions and 0 deletions
--- a/vendor/freertos/freertoslpc/FreeRTOS_lpc43xx_m0_Tick.c_bck
+++ b/vendor/freertos/freertoslpc/FreeRTOS_lpc43xx_m0_Tick.c_bck
@@ -0,0 +1,124 @@
+/*
+ * @brief FreeRTOS LPC43xx M0 core tick function using RITimer
+ *
+ * @note
+ * Copyright(C) NXP Semiconductors, 2012
+ * All rights reserved.
+ *
+ * @par
+ * Software that is described herein is for illustrative purposes only
+ * which provides customers with programming information regarding the
+ * LPC products.  This software is supplied "AS IS" without any warranties of
+ * any kind, and NXP Semiconductors and its licensor disclaim any and
+ * all warranties, express or implied, including all implied warranties of
+ * merchantability, fitness for a particular purpose and non-infringement of
+ * intellectual property rights.  NXP Semiconductors assumes no responsibility
+ * or liability for the use of the software, conveys no license or rights under any
+ * patent, copyright, mask work right, or any other intellectual property rights in
+ * or to any products. NXP Semiconductors reserves the right to make changes
+ * in the software without notification. NXP Semiconductors also makes no
+ * representation or warranty that such application will be suitable for the
+ * specified use without further testing or modification.
+ *
+ * @par
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation is hereby granted, under NXP Semiconductors' and its
+ * licensor's relevant copyrights in the software, without fee, provided that it
+ * is used in conjunction with NXP Semiconductors microcontrollers.  This
+ * copyright, permission, and disclaimer notice must appear in all copies of
+ * this code.
+ */
+
+#include "chip.h"
+#include "FreeRTOS.h"
+
+/** @defgroup FreeRTOS_43XX_M0_TICK LPC43xx M0 core tick function using RITimer
+ * @ingroup RTOS_FreeRTOS
+ * @note	This driver adds support for the RITimer for the FreeRTOS tick on the LPC43xx.
+ * The M0 core in LPC43XX series of controllers does not have internal systick timer,
+ * so the RITIMER is used to generate the RTOS ticks.
+ * @{
+ */
+
+ #if (defined(CHIP_LPC43XX) && defined(CORE_M0) && (configUSE_CUSTOM_TICK == 1))
+
+ /*****************************************************************************
+ * Private types/enumerations/variables
+ ****************************************************************************/
+
+#define portNVIC_PENDSVSET          0x10000000
+#define portNVIC_INT_CTRL           ((volatile unsigned long *) 0xe000ed04)
+#define portMIN_INTERRUPT_PRIORITY  (255UL)
+#define portNVIC_SYSTICK_PRI        portMIN_INTERRUPT_PRIORITY
+
+#define RITENCLR               (1 << 1)
+#define RITINT                 (1 << 0)
+
+/* Timer reload value for next tick */
+static uint32_t reload_val;
+
+/*****************************************************************************
+ * Public types/enumerations/variables
+ ****************************************************************************/
+
+/* FreeRTOS tick update function */
+extern void vTaskIncrementTick(void);
+
+/*****************************************************************************
+ * Private functions
+ ****************************************************************************/
+
+/*****************************************************************************
+ * Public functions
+ ****************************************************************************/
+
+/**
+ * @brief	Tick interrupt handler routine
+ * @return	Nothing
+ * @note	This function handles the tick interrupts that are generated by RITIMER.
+ */
+void xPortSysTickHandler(void)
+{
+	unsigned long ulDummy;
+
+	/* TODO: check if WWDT interrupt and redirect */
+	Chip_RIT_ClearInt(LPC_RITIMER);
+	Chip_RIT_SetCOMPVAL(LPC_RITIMER, Chip_RIT_GetCounter(LPC_RITIMER) + reload_val);/* Reload value */
+
+#if configUSE_PREEMPTION == 1
+	/* If using preemption, also force a context switch. */
+	*(portNVIC_INT_CTRL) = portNVIC_PENDSVSET;
+#endif
+
+	ulDummy = portSET_INTERRUPT_MASK_FROM_ISR();
+	{
+		vTaskIncrementTick();
+	}
+	portCLEAR_INTERRUPT_MASK_FROM_ISR(ulDummy);
+}
+
+/**
+ * @brief	Initialize tick interrupts
+ * @return	Nothing
+ * @note	This function initializes the tick interrupts, and must
+ * be called before starting the freeRTOS scheduler.
+ */
+void prvSetupTimerInterrupt(void)
+{
+	/* Clear any pending interrupt */
+	Chip_RIT_ClearInt(LPC_RITIMER);
+
+	/* Calculate reload value */
+	reload_val = (configCPU_CLOCK_HZ / configTICK_RATE_HZ);
+	Chip_RIT_SetCOMPVAL(LPC_RITIMER, Chip_RIT_GetCounter(LPC_RITIMER) + reload_val);/* Start tick */
+
+	/* Set the priority and enable the interrupt */
+	NVIC_SetPriority((IRQn_Type) RITIMER_IRQn, portNVIC_SYSTICK_PRI);
+	NVIC_EnableIRQ((IRQn_Type) RITIMER_IRQn);
+}
+
+#endif
+
+/**
+ * @}
+ */