Import Mbed OS hard-float snapshot

targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_acmp.c

@@ -0,0 +1,113 @@
+/**************************************************************************//**
+ * @file     acmp.c
+ * @version  V1.00
+ * $Revision: 3 $
+ * $Date: 14/05/29 1:13p $
+ * @brief    NUC472/NUC442 Analog Comparator(ACMP) driver source file
+ *
+ * @note
+ * Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved.
+*****************************************************************************/
+
+#include "NUC472_442.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
+  @{
+*/
+
+/** @addtogroup NUC472_442_ACMP_Driver ACMP Driver
+  @{
+*/
+
+
+/** @addtogroup NUC472_442_ACMP_EXPORTED_FUNCTIONS ACMP Exported Functions
+  @{
+*/
+
+
+/**
+  * @brief  Configure the specified ACMP module
+  *
+  * @param[in]  acmp The base address of ACMP module
+  * @param[in]  u32ChNum comparator number, could be 0, 1, 2
+  * @param[in]  u32NegSrc is comparator negative input selection.  Including:
+  *                  - \ref ACMP_VNEG_PIN
+  *                  - \ref ACMP_VNEG_BANDGAP
+  *                  - \ref ACMP_VNEG_4_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_5_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_6_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_7_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_8_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_9_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_10_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_11_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_12_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_13_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_14_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_15_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_16_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_17_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_18_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_19_OVER_24_VDD
+  *                  - \ref ACMP_VNEG_4_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_5_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_6_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_7_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_8_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_9_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_10_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_11_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_12_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_13_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_14_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_15_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_16_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_17_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_18_OVER_24_IREF
+  *                  - \ref ACMP_VNEG_19_OVER_24_IREF
+  *
+  * @param[in]  u32HysteresisEn is the hysteresis function option. Including:
+  *                  - \ref ACMP_HYSTERESIS_ENABLE
+  *                  - \ref ACMP_HYSTERESIS_DISABLE
+  * @return None
+  */
+void ACMP_Open(ACMP_T *acmp, uint32_t u32ChNum, uint32_t u32NegSrc, uint32_t u32HysteresisEn)
+{
+    if(u32NegSrc != ACMP_VNEG_PIN)
+        ACMP->VREF = u32NegSrc;
+    ACMP->CTL[u32ChNum] = (ACMP->CTL[u32ChNum] & (~(ACMP_CTL_NEGSEL_Msk | ACMP_CTL_HYSEN_Msk))) |
+                          ((u32NegSrc != ACMP_VNEG_PIN ? ACMP_CTL_NEGSEL_Msk : 0) | u32HysteresisEn | ACMP_CTL_ACMPEN_Msk);
+}
+
+/**
+  * @brief  This function close comparator
+  *
+  * @param[in]  acmp The base address of ACMP module
+  * @param[in]  u32ChNum comparator number.
+  *
+  * @return None
+  */
+void ACMP_Close(ACMP_T *acmp, uint32_t u32ChNum)
+{
+    ACMP->CTL[u32ChNum] &= (~ACMP_CTL_ACMPEN_Msk);
+}
+
+
+
+/*@}*/ /* end of group NUC472_442_ACMP_EXPORTED_FUNCTIONS */
+
+/*@}*/ /* end of group NUC472_442_ACMP_Driver */
+
+/*@}*/ /* end of group NUC472_442_Device_Driver */
+
+#ifdef __cplusplus
+}
+#endif
+
+/*** (C) COPYRIGHT 2014 Nuvoton Technology Corp. ***/
+