Diff: include/lpc17xx_dac.h

Revision:

0:1063a091a062

diff -r 000000000000 -r 1063a091a062 include/lpc17xx_dac.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/lpc17xx_dac.h	Wed Feb 17 16:22:39 2010 +0000
@@ -0,0 +1,144 @@
+/***********************************************************************//**
+ * @file    : lpc17xx_dac.h
+ * @brief    : Contains all macro definitions and function prototypes
+ *                 support for DAC firmware library on LPC17xx
+ * @version    : 1.0
+ * @date    : 3. April. 2009
+ * @author    : HieuNguyen
+ **************************************************************************
+ * 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 DAC
+ * @ingroup LPC1700CMSIS_FwLib_Drivers
+ * @{
+ */
+
+#ifndef LPC17XX_DAC_H_
+#define LPC17XX_DAC_H_
+
+/* Includes ------------------------------------------------------------------- */
+#include "cmsis.h"
+#include "lpc_types.h"
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+/* Public Types --------------------------------------------------------------- */
+/** @defgroup DAC_Public_Types
+ * @{
+ */
+
+/**
+ * @brief Current option in ADC confuration option */
+typedef enum
+{
+    DAC_MAX_CURRENT_700uA = 0,     /*!< The settling time of the DAC is 1 us max,
+                                and the maximum    current is 700 uA */
+    DAC_MAX_CURRENT_350uA        /*!< The settling time of the DAC is 2.5 us
+                                and the maximum current is 350 uA */
+} DAC_CURRENT_OPT;
+#define    PARAM_DAC_CURRENT_OPT(OPTION) ((OPTION == DAC_MAX_CURRENT_700uA)\
+||(OPTION == DAC_MAX_CURRENT_350uA))
+
+/**
+ * @brief Configuration for DA converter control register */
+typedef struct
+{
+
+    uint8_t  DBLBUF_ENA;     /**<
+                             -0: Disable DACR double buffering
+                             -1: when bit CNT_ENA, enable DACR double buffering feature
+                             */
+    uint8_t  CNT_ENA;        /*!<
+                             -0: Time out counter is disable
+                             -1: Time out conter is enable
+                             */
+    uint8_t  DMA_ENA;        /*!<
+                                 -0: DMA access is disable
+                                 -1: DMA burst request
+                            */
+    uint8_t RESERVED;
+
+} DAC_CONVERTER_CFG_Type;
+
+/**
+ * @}
+ */
+
+
+/* Public Macros -------------------------------------------------------------- */
+/** @defgroup DAC_Public_Macros
+ * @{
+ */
+
+/** After the selected settling time after this field is written with a
+new VALUE, the voltage on the AOUT pin (with respect to VSSA)
+is VALUE/1024 × VREF */
+#define DAC_VALUE(n)         ((uint32_t)((n&0x3FF)<<6))
+/** If this bit = 0: The settling time of the DAC is 1 microsecond max,
+ * and the maximum current is 700 microAmpere
+ * If this bit = 1: The settling time of the DAC is 2.5 microsecond
+ * and the maximum current is 350 microAmpere */
+#define DAC_BIAS_EN            ((uint32_t)(1<<16))
+/** Value to reload interrupt DMA counter */
+#define DAC_CCNT_VALUE(n)  ((uint32_t)(n&0xff))
+
+/** DCAR double buffering */
+#define DAC_DBLBUF_ENA        ((uint32_t)(1<<1))
+/** DCAR Time out count enable */
+#define DAC_CNT_ENA            ((uint32_t)(1<<2))
+/** DCAR DMA access */
+#define DAC_DMA_ENA            ((uint32_t)(1<<3))
+/** DCAR DACCTRL mask bit */
+#define DAC_DACCTRL_MASK    ((uint32_t)(0x0F))
+
+/** Macro to determine if it is valid DAC peripheral */
+#define PARAM_DACx(n)    (((uint32_t *)n)==((uint32_t *)LPC_DAC))
+
+/**
+ * @}
+ */
+
+/* Public Functions ----------------------------------------------------------- */
+/** @defgroup DAC_Public_Functions
+ * @{
+ */
+
+void     DAC_Init(LPC_DAC_TypeDef *DACx);
+void    DAC_UpdateValue (LPC_DAC_TypeDef *DACx, uint32_t dac_value);
+void    DAC_SetBias (LPC_DAC_TypeDef *DACx,uint32_t bias);
+void    DAC_ConfigDAConverterControl (LPC_DAC_TypeDef *DACx,DAC_CONVERTER_CFG_Type *DAC_ConverterConfigStruct);
+void     DAC_SetDMATimeOut(LPC_DAC_TypeDef *DACx,uint32_t time_out);
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* LPC17XX_DAC_H_ */
+
+/**
+ * @}
+ */
+
+/* --------------------------------- End Of File ------------------------------ */
+