Diff: vendor/Freescale/KL25Z/hal/analogout_api.c

Revision:

13:0645d8841f51

Parent:

12:5fa2273de5db

Child:

14:096882eb0961

--- a/vendor/Freescale/KL25Z/hal/analogout_api.c	Wed Jul 24 11:11:21 2013 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,86 +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 "analogout_api.h"
-
-#include "cmsis.h"
-#include "pinmap.h"
-#include "error.h"
-
-#define RANGE_12BIT     0xFFF
-
-static const PinMap PinMap_DAC[] = {
-    {PTE30, DAC_0, 0},
-    {NC   , NC   , 0}
-};
-
-void analogout_init(dac_t *obj, PinName pin) {
-    obj->dac = (DACName)pinmap_peripheral(pin, PinMap_DAC);
-    if (obj->dac == (uint32_t)NC) {
-        error("DAC pin mapping failed");
-    }
-
-    SIM->SCGC6 |= SIM_SCGC6_DAC0_MASK;
-
-    uint32_t port = (uint32_t)pin >> PORT_SHIFT;
-    SIM->SCGC5 |= 1 << (SIM_SCGC5_PORTA_SHIFT + port);
-
-    DAC0->DAT[obj->dac].DATH = 0;
-    DAC0->DAT[obj->dac].DATL = 0;
-
-    DAC0->C1 = DAC_C1_DACBFMD_MASK;     // One-Time Scan Mode
-
-    DAC0->C0 = DAC_C0_DACEN_MASK        // Enable
-             | DAC_C0_DACSWTRG_MASK;    // Software Trigger
-
-    pinmap_pinout(pin, PinMap_DAC);
-
-    analogout_write_u16(obj, 0);
-}
-
-void analogout_free(dac_t *obj) {}
-
-static inline void dac_write(dac_t *obj, int value) {
-    DAC0->DAT[obj->dac].DATL = (uint8_t)( value       & 0xFF);
-    DAC0->DAT[obj->dac].DATH = (uint8_t)((value >> 8) & 0xFF);
-}
-
-static inline int dac_read(dac_t *obj) {
-    return ((DAC0->DAT[obj->dac].DATH << 8) | DAC0->DAT[obj->dac].DATL);
-}
-
-void analogout_write(dac_t *obj, float value) {
-    if (value < 0.0) {
-        dac_write(obj, 0);
-    } else if (value > 1.0) {
-        dac_write(obj, RANGE_12BIT);
-    } else {
-        dac_write(obj, value * (float)RANGE_12BIT);
-    }
-}
-
-void analogout_write_u16(dac_t *obj, uint16_t value) {
-    dac_write(obj, value >> 4); // 12-bit
-}
-
-float analogout_read(dac_t *obj) {
-    uint32_t value = dac_read(obj);
-    return (float)value * (1.0f / (float)RANGE_12BIT);
-}
-
-uint16_t analogout_read_u16(dac_t *obj) {
-    uint32_t value = dac_read(obj); // 12-bit
-    return (value << 4) | ((value >> 8) & 0x003F);
-}