Diff: targets/TARGET_Realtek/TARGET_AMEBA/analogout_api.c

Revision:

182:57724642e740

Parent:

181:96ed750bd169

--- a/targets/TARGET_Realtek/TARGET_AMEBA/analogout_api.c	Wed Jan 17 15:23:54 2018 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,189 +0,0 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2013-2016 Realtek Semiconductor Corp.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include "objects.h"
-#include "analogout_api.h"
-
-
-#if CONFIG_DAC_EN
-
-#include "cmsis.h"
-#include "pinmap.h"
-#include <string.h>
-
-#define DAC_POSITIVE_FULL_SCALE  0x7E0
-#define DAC_NEGATIVE_FULL_SCALE  0x820
-
-
-/** \brief analogout_init:\n
- *          to initialize DAC
- *  
- *   This function is mainly to initialize a DAC channel.
- *   \para dac_t *: obj
- *   \para PinName: pin
- */
-void analogout_init(dac_t *obj, PinName pin)
-{
-    uint32_t dac_idx;
-    uint32_t DacTemp;
-    PHAL_DAC_INIT_DAT   pHalDacInitData = (PHAL_DAC_INIT_DAT)&(obj->DACpara);
-    dac_idx = pin & 0x0F;
-
-    /* Assign dac index */
-    pHalDacInitData->DACIdx = dac_idx;
-
-    pHalDacInitData->DACEn         =   DAC_DISABLE;
-    pHalDacInitData->DACDataRate   =   DAC_DATA_RATE_250K;
-    pHalDacInitData->DACEndian     =   DAC_DATA_ENDIAN_LITTLE;
-    pHalDacInitData->DACBurstSz    =   10;
-    pHalDacInitData->DACDbgSel     =   DAC_DBG_SEL_DISABLE;
-    pHalDacInitData->DACDscDbgSel  =   DAC_DSC_DBG_SEL_DISABLE;
-    pHalDacInitData->DACBPDsc      =   DAC_BYPASS_DSC_SEL_DISABLE;
-    pHalDacInitData->DACDeltaSig   =   0;
-    pHalDacInitData->DACAnaCtrl0   =   0;
-    pHalDacInitData->DACAnaCtrl1   =   0;
-    pHalDacInitData->DACIntrMSK    =   DAC_FEATURE_DISABLED;
-    
-    /* DAC Function and Clock Enable*/
-    HalDACPinMuxInit(pHalDacInitData);
-
-    HalDACInit8195a(pHalDacInitData);
-    
-    HAL_DAC_WRITE32(pHalDacInitData->DACIdx, REG_DAC_INTR_CTRL, 
-                                (BIT_DAC_FIFO_FULL_EN       |
-                                 BIT_DAC_FIFO_OVERFLOW_EN   |
-                                 BIT_DAC_FIFO_STOP_EN       |
-                                 BIT_DAC__WRITE_ERROR_EN    |
-                                 BIT_DAC_DSC_OVERFLOW0_EN   |
-                                 BIT_DAC_DSC_OVERFLOW1_EN));
-    DBG_DAC_INFO("INTR MSK:%x\n", HAL_DAC_READ32(pHalDacInitData->DACIdx,REG_DAC_INTR_CTRL));
-
-    DacTemp = HAL_DAC_READ32(pHalDacInitData->DACIdx, REG_DAC_ANAPAR_DA1);
-    DacTemp |= (BIT31);
-    HAL_DAC_WRITE32(pHalDacInitData->DACIdx, REG_DAC_ANAPAR_DA1, DacTemp);
-    DBG_DAC_INFO("REG_DAC_ANAPAR_DA1:%08x\n",HAL_DAC_READ32(pHalDacInitData->DACIdx, REG_DAC_ANAPAR_DA1));
-    
-    DacTemp = HAL_DAC_READ32(pHalDacInitData->DACIdx, REG_DAC_CTRL);
-    DacTemp |= BIT3;
-    HAL_DAC_WRITE32(pHalDacInitData->DACIdx, REG_DAC_CTRL, DacTemp);
-    DBG_DAC_INFO("REG_DAC_CTRL:%08x\n",DacTemp);
-    
-    pHalDacInitData->DACEn  = DAC_ENABLE;
-    HalDACEnableRtl8195a(pHalDacInitData);
-    osDelay(6); //hardware needs some time to get ready
-}
-
-/** \brief analogout_free:\n
- *          to free DAC
- *  
- *   This function is mainly to free a DAC channel.
- *   \para dac_t *: obj
- */
-void analogout_free(dac_t *obj)
-{
-    PHAL_DAC_INIT_DAT   pHalDacInitData = (PHAL_DAC_INIT_DAT)&(obj->DACpara);
-
-    HalDACPinMuxDeInit(pHalDacInitData);
-
-    pHalDacInitData->DACEn  = DAC_DISABLE;
-    HalDACEnableRtl8195a(pHalDacInitData);
-}
-
-/** \brief analogout_write:\n
- *          to execute analogout_write
- *  
- *   This function is mainly to execute analog output and the value is a ratio.
- *   The upper/lower bound of DAC register input value is defined by 
- *   DAC_XXXXX_FULL_SCALE. The parameter "value" of this function should be 
- *   transfered to register value.
- *   
- *   \para dac_t *  : obj
- *   \para float      : value
- */
-void analogout_write(dac_t *obj, float value)
-{
-    uint32_t    dactemp;
-    uint16_t    dacnegtemp;
-    PHAL_DAC_INIT_DAT   pHalDacInitData = (PHAL_DAC_INIT_DAT)&(obj->DACpara);
-    
-    if (value < 0.0f) {
-        HAL_DAC_WRITE32(pHalDacInitData->DACIdx, REG_DAC0_FIFO_WR, 0x00000000);
-    } else if (value > 1.0f) {
-        dactemp = (DAC_POSITIVE_FULL_SCALE<<16) | DAC_POSITIVE_FULL_SCALE;
-        HAL_DAC_WRITE32(pHalDacInitData->DACIdx, REG_DAC0_FIFO_WR, dactemp);
-    } else {
-        if (value >= 0.5) {
-            dactemp     = (uint32_t)((((value-0.5)/0.5) * (2^12)) * DAC_POSITIVE_FULL_SCALE);
-            dactemp     = dactemp / (2^12);
-            dactemp     = (dactemp<<16) | dactemp;
-            HAL_DAC_WRITE32(pHalDacInitData->DACIdx, REG_DAC0_FIFO_WR, dactemp);
-        } else {
-            dacnegtemp  = (DAC_NEGATIVE_FULL_SCALE & 0x7FF);
-            dacnegtemp  = ((~dacnegtemp) + 1) & 0x7FF;
-            dactemp     = (uint32_t)(((0.5-value)/0.5) * (2^12) * dacnegtemp);
-            dactemp     = dactemp / (2^12);
-            dactemp     = 0x1000 - dactemp; //change to 2's complement
-            dactemp     = (dactemp<<16) | dactemp;
-            HAL_DAC_WRITE32(pHalDacInitData->DACIdx, REG_DAC0_FIFO_WR, dactemp);
-        }
-    }
-}
-
-/** \brief analogout_write_u16:\n
- *          to execute analogout_write_u16
- *
- *   The register value of DAC input is a format of 2's complement.
- *   The most maximum value of positive value drives DAC to output a voltage about 3.3V.
- *   The most mimimum value of negative value drives DAC to output a voltage about 0.
- *   And the middle value of 0x000 will drive DAC to output a voltage of half of max voltage.
- *
- *   \para dac_t *  : obj
- *   \para float      : value
- */
-void analogout_write_u16(dac_t *obj, uint16_t value)
-{
-    uint32_t    dactemp;
-    PHAL_DAC_INIT_DAT   pHalDacInitData = (PHAL_DAC_INIT_DAT)&(obj->DACpara);
-    
-    /* To give a two point data */
-    dactemp = (value << 16) | value;
-    HAL_DAC_WRITE32(pHalDacInitData->DACIdx, REG_DAC0_FIFO_WR, dactemp);
-}
-
-/** \brief analogout_read_u16:\n
- *          to read back analog output value in float format
- *  
- *   This function is NOT available in rtl8195a hardware design.
- *   It always returns a fixed value of 0.0;
- *   \para dac_t *  : obj
- */
-float analogout_read(dac_t *obj)
-{
-    return (float)0.0;
-}
-
-/** \brief analogout_read_u16:\n
- *          to read back analog output register value
- *  
- *   This function is NOT available in rtl8195a hardware design.
- *   It always returns a fixed value of 0xFFFF;
- *   \para dac_t *  : obj
- */
-uint16_t analogout_read_u16(dac_t *obj)
-{
-    return (uint16_t)0xFFFF;
-}
-
-#endif