Diff: lpc17xx_systick.h

Revision:

0:84d7747641aa

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lpc17xx_systick.h	Sun Mar 20 18:45:15 2011 +0000
@@ -0,0 +1,107 @@
+/***********************************************************************//**
+ * @file		lpc17xx_systick.h
+ * @brief		Contains all macro definitions and function prototypes
+ * 				support for SYSTICK firmware library on LPC17xx
+ * @version		2.0
+ * @date		21. May. 2010
+ * @author		NXP MCU SW Application Team
+ **************************************************************************
+ * Software that is described herein is for illustrative purposes only
+ * which provides customers with programming information regarding the
+ * products. This software is supplied "AS IS" without any warranties.
+ * NXP Semiconductors assumes no responsibility or liability for the
+ * use of the software, conveys no license or title under any patent,
+ * copyright, or mask work right to the product. NXP Semiconductors
+ * reserves the right to make changes in the software without
+ * notification. NXP Semiconductors also make no representation or
+ * warranty that such application will be suitable for the specified
+ * use without further testing or modification.
+ **************************************************************************/
+
+/* Peripheral group ----------------------------------------------------------- */
+/** @defgroup SYSTICK SYSTICK
+ * @ingroup LPC1700CMSIS_FwLib_Drivers
+ * @{
+ */
+
+#ifndef LPC17XX_SYSTICK_H_
+#define LPC17XX_SYSTICK_H_
+
+/* Includes ------------------------------------------------------------------- */
+#include "LPC17xx.h"
+#include "lpc_types.h"
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+/* Private Macros ------------------------------------------------------------- */
+/** @defgroup SYSTICK_Private_Macros SYSTICK Private Macros
+ * @{
+ */
+/*********************************************************************//**
+ * Macro defines for System Timer Control and status (STCTRL) register
+ **********************************************************************/
+#define ST_CTRL_ENABLE		((uint32_t)(1<<0))
+#define ST_CTRL_TICKINT		((uint32_t)(1<<1))
+#define ST_CTRL_CLKSOURCE	((uint32_t)(1<<2))
+#define ST_CTRL_COUNTFLAG	((uint32_t)(1<<16))
+
+/*********************************************************************//**
+ * Macro defines for System Timer Reload value (STRELOAD) register
+ **********************************************************************/
+#define ST_RELOAD_RELOAD(n)		((uint32_t)(n & 0x00FFFFFF))
+
+/*********************************************************************//**
+ * Macro defines for System Timer Current value (STCURRENT) register
+ **********************************************************************/
+#define ST_RELOAD_CURRENT(n)	((uint32_t)(n & 0x00FFFFFF))
+
+/*********************************************************************//**
+ * Macro defines for System Timer Calibration value (STCALIB) register
+ **********************************************************************/
+#define ST_CALIB_TENMS(n)		((uint32_t)(n & 0x00FFFFFF))
+#define ST_CALIB_SKEW			((uint32_t)(1<<30))
+#define ST_CALIB_NOREF			((uint32_t)(1<<31))
+
+#define CLKSOURCE_EXT			((uint32_t)(0))
+#define CLKSOURCE_CPU			((uint32_t)(1))
+
+/**
+ * @}
+ */
+
+
+/* Public Functions ----------------------------------------------------------- */
+/** @defgroup SYSTICK_Public_Functions SYSTICK Public Functions
+ * @{
+ */
+
+void SYSTICK_InternalInit(uint32_t time);
+void SYSTICK_ExternalInit(uint32_t freq, uint32_t time);
+
+void SYSTICK_Cmd(FunctionalState NewState);
+void SYSTICK_IntCmd(FunctionalState NewState);
+uint32_t SYSTICK_GetCurrentValue(void);
+void SYSTICK_ClearCounterFlag(void);
+
+/**
+ * @}
+ */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* LPC17XX_SYSTICK_H_ */
+
+/**
+ * @}
+ */
+
+/* --------------------------------- End Of File ------------------------------ */