differential input adc board K64F Compatible hal freescale K64F

Dependents:   trms_helloworld AnalogIn_Diff_helloworld

Fork of AnalogIn_Diff by frederic blanc

Revision:
5:c24df4d64aa1
Parent:
4:a833fa5cce1e
Child:
6:f39be15f056c
--- a/AnalohIn_Diff.cpp	Tue Sep 22 13:40:55 2015 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,88 +0,0 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2006-2013 ARM Limited
- *
- * 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 "AnalogIn_Diff.h"
-
-#if FSL_FEATURE_ADC_HAS_DIFF_MODE
-
-
-
-AnalogIn_Diff::AnalogIn_Diff(int adc_ch)
-{
-    
-    const uint32_t temp[] = ADC_BASE_ADDRS;
-    for (int i = 0; i < sizeof(temp) / sizeof(temp[0]); i++)
-        adc_addrs[i] = temp[i];
-
-    
-    instance=(adc_ch>>1)&1;
-    chnNum=(adc_ch>>0)&1;
-          
-    
-    CLOCK_SYS_EnableAdcClock(instance);
-
-    uint32_t bus_clock;
-    CLOCK_SYS_GetFreq(kBusClock, &bus_clock);
-    uint32_t clkdiv;
-    for (clkdiv = 0; clkdiv < 4; clkdiv++) {
-        if ((bus_clock >> clkdiv) <= MAX_FADC)
-            break;
-    }
-    if (clkdiv == 4) {
-        clkdiv = 0x3; //Set max div
-    }
-
-    /* adc is enabled/triggered when reading. */
-
-    ADC_HAL_Init(adc_addrs[instance]);
-    ADC_HAL_SetClkSrcMode(adc_addrs[instance], kAdcClkSrcOfBusClk);
-    ADC_HAL_SetClkDividerMode(adc_addrs[instance], (adc_clk_divider_mode_t)(clkdiv & 0x3));
-    ADC_HAL_SetRefVoltSrcMode(adc_addrs[instance], kAdcRefVoltSrcOfVref);
-    ADC_HAL_SetResolutionMode(adc_addrs[instance], kAdcResolutionBitOfDiffModeAs16);
-    ADC_HAL_SetContinuousConvCmd(adc_addrs[instance], false);//false
-    ADC_HAL_SetHwTriggerCmd(adc_addrs[instance], false); /* sw trigger */
-    ADC_HAL_SetHwAverageCmd(adc_addrs[instance], false); /*Average*/
-    //ADC_HAL_SetHwAverageCmd(adc_addrs[instance], true);
-    //ADC_HAL_SetHwAverageMode(adc_addrs[instance], kAdcHwAverageCountOf32);
-    ADC_HAL_SetChnMuxMode(adc_addrs[instance], kAdcChnMuxOfB); /* only B channels are avail */
-
-}
-
-AnalogIn_Diff::~AnalogIn_Diff() { }
-
-void AnalogIn_Diff::test (int x)
-{
-       printf("\r\n %i: 0x%08lx\r\n",x,(long)adc_addrs[instance]);
-}
-
-
-int16_t AnalogIn_Diff::read_raws16()    // Returns a 16bit signed integer
-{
-    /* sw trigger (SC1A) */
-
-    ADC_HAL_ConfigChn(adc_addrs[instance], 0, false, true, chnNum);
-    while (!ADC_HAL_GetChnConvCompletedCmd(adc_addrs[instance], 0));
-   return ADC_HAL_GetChnConvValueRAW(adc_addrs[instance], 0);
-
-}
-
-float AnalogIn_Diff::read()
-{
-    int16_t value = read_raws16();
-    return (float)value * (1.0f / (float)0xFFFF);
-}
-
-#endif // FSL_FEATURE_ADC_HAS_DIFF_MODE