Renamed main folder to firmware

firmware/sam3s_examples_include/dacc.h

@@ -0,0 +1,146 @@
+/* ----------------------------------------------------------------------------
+ *         ATMEL Microcontroller Software Support
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2009, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
+ * ----------------------------------------------------------------------------
+ */
+
+/**
+ *  \file
+ *
+ *  \section Purpose
+ *
+ *  Interface for configuration the Analog-to-Digital Converter (DACC) peripheral.
+ *
+ *  \section Usage
+ *
+ *  -# Configurate the pins for DACC
+ *  -# Initialize the DACC with DACC_Initialize().
+ *  -# Select the active channel using DACC_EnableChannel()
+ *  -# Start the conversion with DACC_StartConversion()
+ *  -# Wait the end of the conversion by polling status with DACC_GetStatus()
+ *  -# Finally, get the converted data using DACC_GetConvertedData()
+ *
+*/
+#ifndef _DACC_
+#define _DACC_
+
+/*----------------------------------------------------------------------------
+ *        Headers
+ *----------------------------------------------------------------------------*/
+#include "chip.h"
+
+#include <stdint.h>
+#include <assert.h>
+
+/*------------------------------------------------------------------------------
+ *         Definitions
+ *------------------------------------------------------------------------------*/
+#define DACC_CHANNEL_0 0
+#define DACC_CHANNEL_1 1
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/*------------------------------------------------------------------------------
+ *         Macros function of register access
+ *------------------------------------------------------------------------------*/
+#define DACC_CfgModeReg(pDACC, mode)  { \
+             (pDACC)->DACC_MR = (mode);\
+        }
+
+#define DACC_GetModeReg(pDACC)                ((pDACC)->DACC_MR)
+
+#define DACC_StartConversion(pDACC)           ((pDACC)->DACC_CR = DACC_CR_START)
+
+#define DACC_SoftReset(pDACC)                 ((pDACC)->DACC_CR = DACC_CR_SWRST)
+
+#define DACC_EnableChannel(pDACC, channel)    {\
+            (pDACC)->DACC_CHER = (1 << (channel));\
+        }
+
+#define DACC_DisableChannel(pDACC, channel)  {\
+            (pDACC)->DACC_CHDR = (1 << (channel));\
+        }
+
+#define DACC_EnableIt(pDACC, mode)            {\
+            assert( ((mode)&0xFFF00000)== 0 ) ;\
+            (pDACC)->DACC_IER = (mode);\
+        }
+
+#define DACC_DisableIt(pDACC, mode)           {\
+            assert( ((mode)&0xFFF00000)== 0 ) ;\
+            (pDACC)->DACC_IDR = (mode);\
+        }
+
+#define DACC_EnableDataReadyIt(pDACC)         ((pDACC)->DACC_IER = AT91C_DACC_DRDY)
+
+#define DACC_GetStatus(pDACC)                 ((pDACC)->DACC_ISR)
+
+#define DACC_GetChannelStatus(pDACC)          ((pDACC)->DACC_CHSR)
+
+#define DACC_GetInterruptMaskStatus(pDACC)    ((pDACC)->DACC_IMR)
+
+#define DACC_GetLastConvertedData(pDACC)      ((pDACC)->DACC_LCDR)
+
+#define DACC_CfgAnalogCtrlReg(pDACC,mode)     {\
+            assert( ((mode) & 0xFFFCFF3C)==0 ) ;\
+            (pDACC)->DACC_ACR = (mode);\
+        }
+
+#define DACC_CfgExtModeReg(pDACC, extmode)    {\
+            assert( ((extmode) & 0xFF00FFFE)==0 ) ;\
+            (pDACC)->DACC_EMR = (extmode);\
+        }
+
+#define DACC_GetAnalogCtrlReg(pDACC)          ((pDACC)->DACC_ACR)
+
+/*------------------------------------------------------------------------------
+ *         Exported functions
+ *------------------------------------------------------------------------------*/
+extern void DACC_Initialize( Dacc* pDACC,
+                     uint8_t idDACC,
+                     uint8_t trgEn,
+                     uint8_t trgSel,
+                     uint8_t word,
+                     uint8_t sleepMode,
+                     uint32_t mck,
+                     uint8_t refresh,/*refresh period*/
+                     uint8_t user_sel,/*user channel selection*/
+                     uint32_t tag_mode,/*using tag for channel number*/
+                     uint32_t startup
+                     );
+
+
+extern void DACC_SetConversionData( Dacc* pDACC, uint32_t dwData ) ;
+
+extern uint32_t DACC_WriteBuffer( Dacc* pDACC, uint16_t* pwBuffer, uint32_t dwSize ) ;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* #ifndef _DACC_ */