Import Mbed OS hard-float snapshot

targets/TARGET_NUVOTON/TARGET_M261/device/StdDriver/m261_acmp.c

@@ -0,0 +1,108 @@
+/**************************************************************************//**
+ * @file     acmp.c
+ * @version  V3.00
+ * $Revision: 1 $
+ * $Date: 16/07/07 7:50p $
+ * @brief    Analog Comparator(ACMP) driver source file
+ *
+ * @note
+ * @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *   1. Redistributions of source code must retain the above copyright notice,
+ *      this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright notice,
+ *      this list of conditions and the following disclaimer in the documentation
+ *      and/or other materials provided with the distribution.
+ *   3. Neither the name of Nuvoton Technology Corp. nor the names of its contributors
+ *      may be used to endorse or promote products derived from this software
+ *      without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*****************************************************************************/
+
+#include "M261.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/** @addtogroup Standard_Driver Standard Driver
+  @{
+*/
+
+/** @addtogroup ACMP_Driver ACMP Driver
+  @{
+*/
+
+
+/** @addtogroup ACMP_EXPORTED_FUNCTIONS ACMP Exported Functions
+  @{
+*/
+
+
+/**
+  * @brief  Configure the specified ACMP module
+  *
+  * @param[in]  acmp      The pointer of the specified ACMP module
+  * @param[in]  u32ChNum  Comparator number.
+  * @param[in]  u32NegSrc Comparator negative input selection.  Including:
+  *                  - \ref ACMP_CTL_NEGSEL_PIN
+  *                  - \ref ACMP_CTL_NEGSEL_CRV
+  *                  - \ref ACMP_CTL_NEGSEL_VBG
+  *                  - \ref ACMP_CTL_NEGSEL_DAC
+  * @param[in]  u32HysSel The hysteresis function option. Including:
+  *                  - \ref ACMP_CTL_HYSTERESIS_30MV
+  *                  - \ref ACMP_CTL_HYSTERESIS_20MV
+  *                  - \ref ACMP_CTL_HYSTERESIS_10MV
+  *                  - \ref ACMP_CTL_HYSTERESIS_DISABLE
+  *
+  * @return     None
+  *
+  * @details    Configure hysteresis function, select the source of negative input and enable analog comparator.
+  */
+void ACMP_Open(ACMP_T *acmp, uint32_t u32ChNum, uint32_t u32NegSrc, uint32_t u32HysSel)
+{
+    acmp->CTL[u32ChNum] = (acmp->CTL[u32ChNum] & (~(ACMP_CTL_NEGSEL_Msk | ACMP_CTL_HYSSEL_Msk))) | (u32NegSrc | u32HysSel | ACMP_CTL_ACMPEN_Msk);
+}
+
+/**
+  * @brief  Close analog comparator
+  *
+  * @param[in]  acmp The pointer of the specified ACMP module
+  * @param[in]  u32ChNum Comparator number.
+  *
+  * @return     None
+  *
+  * @details  This function will clear ACMPEN bit of ACMP_CTL register to disable analog comparator.
+  */
+void ACMP_Close(ACMP_T *acmp, uint32_t u32ChNum)
+{
+    acmp->CTL[u32ChNum] &= (~ACMP_CTL_ACMPEN_Msk);
+}
+
+
+
+/*@}*/ /* end of group ACMP_EXPORTED_FUNCTIONS */
+
+/*@}*/ /* end of group ACMP_Driver */
+
+/*@}*/ /* end of group Standard_Driver */
+
+#ifdef __cplusplus
+}
+#endif
+
+/*** (C) COPYRIGHT 2019 Nuvoton Technology Corp. ***/
+