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This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_STM/TARGET_DISCO_F407VG/analogout_api.c@268:402bcc0c870b, 2014-07-29 (annotated)

Committer:
mbed_official
Date:
Tue Jul 29 19:00:07 2014 +0100
Revision:
268:402bcc0c870b
Parent:
251:de9a1e4ffd79
Child:
285:31249416b6f9
Synchronized with git revision 490d1a6606b3138f165c5edf2f2370ca616587c0



Full URL: https://github.com/mbedmicro/mbed/commit/490d1a6606b3138f165c5edf2f2370ca616587c0/



[LPC1114] Sleep fix + some device.h settings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 141:706f8dea204a 1 /* mbed Microcontroller Library
mbed_official 141:706f8dea204a 2 * Copyright (c) 2014, STMicroelectronics
mbed_official 141:706f8dea204a 3 * All rights reserved.
mbed_official 141:706f8dea204a 4 *
mbed_official 141:706f8dea204a 5 * Redistribution and use in source and binary forms, with or without
mbed_official 141:706f8dea204a 6 * modification, are permitted provided that the following conditions are met:
mbed_official 141:706f8dea204a 7 *
mbed_official 141:706f8dea204a 8 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 141:706f8dea204a 9 * this list of conditions and the following disclaimer.
mbed_official 141:706f8dea204a 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 141:706f8dea204a 11 * this list of conditions and the following disclaimer in the documentation
mbed_official 141:706f8dea204a 12 * and/or other materials provided with the distribution.
mbed_official 141:706f8dea204a 13 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 141:706f8dea204a 14 * may be used to endorse or promote products derived from this software
mbed_official 141:706f8dea204a 15 * without specific prior written permission.
mbed_official 141:706f8dea204a 16 *
mbed_official 141:706f8dea204a 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 141:706f8dea204a 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 141:706f8dea204a 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 141:706f8dea204a 20 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 141:706f8dea204a 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 141:706f8dea204a 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 141:706f8dea204a 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 141:706f8dea204a 24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 141:706f8dea204a 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 141:706f8dea204a 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 141:706f8dea204a 27 */
mbed_official 141:706f8dea204a 28 #include "analogout_api.h"
mbed_official 141:706f8dea204a 29
mbed_official 141:706f8dea204a 30 #if DEVICE_ANALOGOUT
mbed_official 141:706f8dea204a 31
mbed_official 141:706f8dea204a 32 #include "cmsis.h"
mbed_official 141:706f8dea204a 33 #include "pinmap.h"
mbed_official 251:de9a1e4ffd79 34 #include "error.h"
mbed_official 141:706f8dea204a 35 #include "stm32f4xx_hal.h"
mbed_official 141:706f8dea204a 36
mbed_official 141:706f8dea204a 37 #define RANGE_12BIT (0xFFF)
mbed_official 141:706f8dea204a 38
mbed_official 141:706f8dea204a 39 DAC_HandleTypeDef DacHandle;
mbed_official 141:706f8dea204a 40 static DAC_ChannelConfTypeDef sConfig;
mbed_official 141:706f8dea204a 41
mbed_official 141:706f8dea204a 42 static const PinMap PinMap_DAC[] = {
mbed_official 141:706f8dea204a 43 {PA_4, DAC_0, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0xFF)}, // DAC_OUT1
mbed_official 141:706f8dea204a 44 {PA_5, DAC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0xFF)}, // DAC_OUT2
mbed_official 141:706f8dea204a 45 {NC, NC, 0}
mbed_official 141:706f8dea204a 46 };
mbed_official 141:706f8dea204a 47
mbed_official 141:706f8dea204a 48 void analogout_init(dac_t *obj, PinName pin)
mbed_official 141:706f8dea204a 49 {
mbed_official 141:706f8dea204a 50 uint32_t channel ;
mbed_official 141:706f8dea204a 51 HAL_StatusTypeDef status;
mbed_official 141:706f8dea204a 52
mbed_official 141:706f8dea204a 53 // Get the peripheral name (DAC_1, ...) from the pin and assign it to the object
mbed_official 141:706f8dea204a 54 obj->dac = (DACName)pinmap_peripheral(pin, PinMap_DAC);
mbed_official 141:706f8dea204a 55
mbed_official 141:706f8dea204a 56 if (obj->dac == (DACName)NC) {
mbed_official 141:706f8dea204a 57 error("DAC pin mapping failed");
mbed_official 141:706f8dea204a 58 }
mbed_official 141:706f8dea204a 59
mbed_official 141:706f8dea204a 60 // Configure GPIO
mbed_official 141:706f8dea204a 61 pinmap_pinout(pin, PinMap_DAC);
mbed_official 141:706f8dea204a 62
mbed_official 141:706f8dea204a 63 // Save the channel for the write and read functions
mbed_official 141:706f8dea204a 64 obj->channel = pin;
mbed_official 141:706f8dea204a 65
mbed_official 141:706f8dea204a 66 __GPIOA_CLK_ENABLE();
mbed_official 141:706f8dea204a 67
mbed_official 141:706f8dea204a 68 __DAC_CLK_ENABLE();
mbed_official 141:706f8dea204a 69
mbed_official 141:706f8dea204a 70 DacHandle.Instance = DAC;
mbed_official 141:706f8dea204a 71
mbed_official 141:706f8dea204a 72 status = HAL_DAC_Init(&DacHandle);
mbed_official 141:706f8dea204a 73 if ( status != HAL_OK ) {
mbed_official 141:706f8dea204a 74 error("HAL_DAC_Init failed");
mbed_official 141:706f8dea204a 75 }
mbed_official 141:706f8dea204a 76
mbed_official 141:706f8dea204a 77 sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
mbed_official 141:706f8dea204a 78 sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
mbed_official 141:706f8dea204a 79
mbed_official 141:706f8dea204a 80 if (obj->channel == PA_4) {
mbed_official 141:706f8dea204a 81 channel = DAC_CHANNEL_1;
mbed_official 141:706f8dea204a 82 } else {
mbed_official 141:706f8dea204a 83 channel = DAC_CHANNEL_2;
mbed_official 141:706f8dea204a 84 }
mbed_official 141:706f8dea204a 85
mbed_official 141:706f8dea204a 86 if (HAL_DAC_ConfigChannel(&DacHandle, &sConfig, channel) != HAL_OK) {
mbed_official 141:706f8dea204a 87 error("HAL_DAC_ConfigChannel failed");
mbed_official 141:706f8dea204a 88 }
mbed_official 141:706f8dea204a 89
mbed_official 141:706f8dea204a 90 if (HAL_DAC_Start(&DacHandle, channel) != HAL_OK) {
mbed_official 141:706f8dea204a 91 error("HAL_DAC_Start failed");
mbed_official 141:706f8dea204a 92 }
mbed_official 141:706f8dea204a 93
mbed_official 141:706f8dea204a 94 if (HAL_DAC_SetValue(&DacHandle, channel, DAC_ALIGN_12B_R, 0x000) != HAL_OK) {
mbed_official 141:706f8dea204a 95 error("HAL_DAC_SetValue failed");
mbed_official 141:706f8dea204a 96 }
mbed_official 141:706f8dea204a 97
mbed_official 141:706f8dea204a 98 }
mbed_official 141:706f8dea204a 99
mbed_official 141:706f8dea204a 100 void analogout_free(dac_t *obj)
mbed_official 141:706f8dea204a 101 {
mbed_official 141:706f8dea204a 102 }
mbed_official 141:706f8dea204a 103
mbed_official 141:706f8dea204a 104 static inline void dac_write(dac_t *obj, uint16_t value)
mbed_official 141:706f8dea204a 105 {
mbed_official 242:7074e42da0b2 106 HAL_StatusTypeDef status = HAL_ERROR;
mbed_official 141:706f8dea204a 107
mbed_official 141:706f8dea204a 108 if (obj->channel == PA_4) {
mbed_official 141:706f8dea204a 109 status = HAL_DAC_SetValue(&DacHandle, DAC_CHANNEL_1, DAC_ALIGN_12B_R, value);
mbed_official 141:706f8dea204a 110 } else if (obj->channel == PA_5) {
mbed_official 141:706f8dea204a 111 status = HAL_DAC_SetValue(&DacHandle, DAC_CHANNEL_2, DAC_ALIGN_12B_R, value);
mbed_official 141:706f8dea204a 112 }
mbed_official 141:706f8dea204a 113
mbed_official 141:706f8dea204a 114 if ( status != HAL_OK ) {
mbed_official 141:706f8dea204a 115 error("ADC pin mapping failed");
mbed_official 141:706f8dea204a 116 }
mbed_official 141:706f8dea204a 117 }
mbed_official 141:706f8dea204a 118
mbed_official 141:706f8dea204a 119 static inline int dac_read(dac_t *obj)
mbed_official 141:706f8dea204a 120 {
mbed_official 141:706f8dea204a 121 if (obj->channel == PA_4) {
mbed_official 141:706f8dea204a 122 return (int)HAL_DAC_GetValue(&DacHandle, DAC_CHANNEL_1);
mbed_official 141:706f8dea204a 123 } else if (obj->channel == PA_5) {
mbed_official 141:706f8dea204a 124 return (int)HAL_DAC_GetValue(&DacHandle, DAC_CHANNEL_2);
mbed_official 141:706f8dea204a 125 }
mbed_official 242:7074e42da0b2 126 return 0; /* Just silented warning */
mbed_official 141:706f8dea204a 127 }
mbed_official 141:706f8dea204a 128
mbed_official 141:706f8dea204a 129 void analogout_write(dac_t *obj, float value)
mbed_official 141:706f8dea204a 130 {
mbed_official 141:706f8dea204a 131 if (value < 0.0f) {
mbed_official 141:706f8dea204a 132 dac_write(obj, 0); // Min value
mbed_official 141:706f8dea204a 133 } else if (value > 1.0f) {
mbed_official 141:706f8dea204a 134 dac_write(obj, (uint16_t)RANGE_12BIT); // Max value
mbed_official 141:706f8dea204a 135 } else {
mbed_official 141:706f8dea204a 136 dac_write(obj, (uint16_t)(value * (float)RANGE_12BIT));
mbed_official 141:706f8dea204a 137 }
mbed_official 141:706f8dea204a 138 }
mbed_official 141:706f8dea204a 139
mbed_official 141:706f8dea204a 140 void analogout_write_u16(dac_t *obj, uint16_t value)
mbed_official 141:706f8dea204a 141 {
mbed_official 141:706f8dea204a 142 if (value > (uint16_t)RANGE_12BIT) {
mbed_official 141:706f8dea204a 143 value = (uint16_t)RANGE_12BIT; // Max value
mbed_official 141:706f8dea204a 144 }
mbed_official 141:706f8dea204a 145
mbed_official 141:706f8dea204a 146 dac_write(obj, value);
mbed_official 141:706f8dea204a 147 }
mbed_official 141:706f8dea204a 148
mbed_official 141:706f8dea204a 149 float analogout_read(dac_t *obj)
mbed_official 141:706f8dea204a 150 {
mbed_official 141:706f8dea204a 151
mbed_official 141:706f8dea204a 152 uint32_t value = dac_read(obj);
mbed_official 141:706f8dea204a 153 return (float)value * (1.0f / (float)RANGE_12BIT);
mbed_official 141:706f8dea204a 154 }
mbed_official 141:706f8dea204a 155
mbed_official 141:706f8dea204a 156 uint16_t analogout_read_u16(dac_t *obj)
mbed_official 141:706f8dea204a 157 {
mbed_official 141:706f8dea204a 158 return (uint16_t)dac_read(obj);
mbed_official 141:706f8dea204a 159 }
mbed_official 141:706f8dea204a 160
mbed_official 141:706f8dea204a 161 #endif // DEVICE_ANALOGOUT