Mouse code for the MacroRat

Dependencies:   ITG3200 QEI

Revision:
18:6a4db94011d3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-dev/targets/TARGET_NUVOTON/TARGET_M451/device/StdDriver/m451_dac.c	Sun May 14 23:18:57 2017 +0000
@@ -0,0 +1,94 @@
+/**************************************************************************//**
+ * @file     dac.c
+ * @version  V2.00
+ * $Revision: 8 $
+ * $Date: 15/08/11 10:26a $
+ * @brief    M451 series DAC driver source file
+ *
+ * @note
+ * Copyright (C) 2014~2015 Nuvoton Technology Corp. All rights reserved.
+*****************************************************************************/
+#include "M451Series.h"
+
+/** @addtogroup Standard_Driver Standard Driver
+  @{
+*/
+
+/** @addtogroup DAC_Driver DAC Driver
+  @{
+*/
+
+/** @addtogroup DAC_EXPORTED_FUNCTIONS DAC Exported Functions
+  @{
+*/
+
+/**
+  * @brief This function make DAC module be ready to convert.
+  * @param[in] dac Base address of DAC module.
+  * @param[in] u32Ch Not used in M451 Series DAC.
+  * @param[in] u32TrgSrc Decides the trigger source. Valid values are:
+  *                      - \ref DAC_WRITE_DAT_TRIGGER             :Write DAC_DAT trigger
+  *                      - \ref DAC_SOFTWARE_TRIGGER              :Software trigger
+  *                      - \ref DAC_LOW_LEVEL_TRIGGER             :STDAC pin low level trigger
+  *                      - \ref DAC_HIGH_LEVEL_TRIGGER            :STDAC pin high level trigger
+  *                      - \ref DAC_FALLING_EDGE_TRIGGER          :STDAC pin falling edge trigger
+  *                      - \ref DAC_RISING_EDGE_TRIGGER           :STDAC pin rising edge trigger
+  *                      - \ref DAC_TIMER0_TRIGGER                :Timer 0 trigger
+  *                      - \ref DAC_TIMER1_TRIGGER                :Timer 1 trigger
+  *                      - \ref DAC_TIMER2_TRIGGER                :Timer 2 trigger
+  *                      - \ref DAC_TIMER3_TRIGGER                :Timer 3 trigger
+  *                      - \ref DAC_PWM0_TRIGGER                  :PWM0 trigger
+  *                      - \ref DAC_PWM1_TRIGGER                  :PWM1 trigger
+  * @return None
+  * @details The DAC conversion can be started by writing DAC_DAT, software trigger or hardware trigger.
+  *         When TRGEN (DAC_CTL[4]) is 0, the data conversion is started by writing DAC_DAT register.
+  *         When TRGEN (DAC_CTL[4]) is 1, the data conversion is started by SWTRG (DAC_SWTRG[0]) is set to 1,
+  *         external STDAC pin, timer event, or PWM timer event.
+  */
+void DAC_Open(DAC_T *dac,
+              uint32_t u32Ch,
+              uint32_t u32TrgSrc)
+{
+    dac->CTL &= ~(DAC_CTL_ETRGSEL_Msk | DAC_CTL_TRGSEL_Msk | DAC_CTL_TRGEN_Msk);
+
+    dac->CTL |= (u32TrgSrc | DAC_CTL_DACEN_Msk);
+}
+
+/**
+  * @brief Disable DAC analog power.
+  * @param[in] dac Base address of DAC module.
+  * @param[in] u32Ch Not used in M451 Series DAC.
+  * @return None
+  * @details Disable DAC analog power for saving power consumption.
+  */
+void DAC_Close(DAC_T *dac, uint32_t u32Ch)
+{
+    dac->CTL &= (~DAC_CTL_DACEN_Msk);
+}
+
+/**
+  * @brief Set delay time for DAC to become stable.
+  * @param[in] dac Base address of DAC module.
+  * @param[in] u32Delay Decides the DAC conversion settling time, the range is from 0~(1023/PCLK*1000000) micro seconds.
+  * @return Real DAC conversion settling time (micro second).
+  * @details For example, DAC controller clock speed is 72MHz and DAC conversion setting time is 1 us, SETTLET (DAC_TCTL[9:0]) value must be greater than 0x48.
+  * @note User needs to write appropriate value to meet DAC conversion settling time base on PCLK (APB clock) speed.
+  */
+float DAC_SetDelayTime(DAC_T *dac, uint32_t u32Delay)
+{
+    SystemCoreClockUpdate();
+
+    dac->TCTL = ((SystemCoreClock * u32Delay / 1000000) & 0x3FF);
+
+    return ((dac->TCTL) * 1000000 / SystemCoreClock);
+}
+
+
+
+/*@}*/ /* end of group DAC_EXPORTED_FUNCTIONS */
+
+/*@}*/ /* end of group DAC_Driver */
+
+/*@}*/ /* end of group Standard_Driver */
+
+/*** (C) COPYRIGHT 2014~2015 Nuvoton Technology Corp. ***/