mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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

Import librarymbed

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_STM32F407VG/analogout_api.c@440:8a0b45cd594f, 2014-12-16 (annotated)

Committer:
mbed_official
Date:
Tue Dec 16 08:15:08 2014 +0000
Revision:
440:8a0b45cd594f
Parent:
428:4ddf7f7eabbb 
Synchronized with git revision 67fbbf0b635d0c0d93fbe433306c537c2ad206aa



Full URL: https://github.com/mbedmicro/mbed/commit/67fbbf0b635d0c0d93fbe433306c537c2ad206aa/



Targets: nrf51 - updating app_timer.c from Norid'c SDKv7.1.0

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 285:31249416b6f9 34 #include "mbed_error.h"
mbed_official 141:706f8dea204a 35 #include "stm32f4xx_hal.h"
mbed_official 428:4ddf7f7eabbb 36 #include "PeripheralPins.h"
mbed_official 141:706f8dea204a 37
mbed_official 141:706f8dea204a 38 #define RANGE_12BIT (0xFFF)
mbed_official 141:706f8dea204a 39
mbed_official 141:706f8dea204a 40 DAC_HandleTypeDef DacHandle;
mbed_official 141:706f8dea204a 41 static DAC_ChannelConfTypeDef sConfig;
mbed_official 141:706f8dea204a 42
mbed_official 141:706f8dea204a 43 void analogout_init(dac_t *obj, PinName pin)
mbed_official 141:706f8dea204a 44 {
mbed_official 141:706f8dea204a 45 uint32_t channel ;
mbed_official 141:706f8dea204a 46 HAL_StatusTypeDef status;
mbed_official 141:706f8dea204a 47
mbed_official 141:706f8dea204a 48 // Get the peripheral name (DAC_1, ...) from the pin and assign it to the object
mbed_official 141:706f8dea204a 49 obj->dac = (DACName)pinmap_peripheral(pin, PinMap_DAC);
mbed_official 141:706f8dea204a 50
mbed_official 141:706f8dea204a 51 if (obj->dac == (DACName)NC) {
mbed_official 141:706f8dea204a 52 error("DAC pin mapping failed");
mbed_official 141:706f8dea204a 53 }
mbed_official 141:706f8dea204a 54
mbed_official 141:706f8dea204a 55 // Configure GPIO
mbed_official 141:706f8dea204a 56 pinmap_pinout(pin, PinMap_DAC);
mbed_official 141:706f8dea204a 57
mbed_official 141:706f8dea204a 58 // Save the channel for the write and read functions
mbed_official 141:706f8dea204a 59 obj->channel = pin;
mbed_official 141:706f8dea204a 60
mbed_official 141:706f8dea204a 61 __GPIOA_CLK_ENABLE();
mbed_official 141:706f8dea204a 62
mbed_official 141:706f8dea204a 63 __DAC_CLK_ENABLE();
mbed_official 141:706f8dea204a 64
mbed_official 141:706f8dea204a 65 DacHandle.Instance = DAC;
mbed_official 141:706f8dea204a 66
mbed_official 141:706f8dea204a 67 status = HAL_DAC_Init(&DacHandle);
mbed_official 141:706f8dea204a 68 if ( status != HAL_OK ) {
mbed_official 141:706f8dea204a 69 error("HAL_DAC_Init failed");
mbed_official 141:706f8dea204a 70 }
mbed_official 141:706f8dea204a 71
mbed_official 141:706f8dea204a 72 sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
mbed_official 141:706f8dea204a 73 sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
mbed_official 141:706f8dea204a 74
mbed_official 141:706f8dea204a 75 if (obj->channel == PA_4) {
mbed_official 141:706f8dea204a 76 channel = DAC_CHANNEL_1;
mbed_official 141:706f8dea204a 77 } else {
mbed_official 141:706f8dea204a 78 channel = DAC_CHANNEL_2;
mbed_official 141:706f8dea204a 79 }
mbed_official 141:706f8dea204a 80
mbed_official 141:706f8dea204a 81 if (HAL_DAC_ConfigChannel(&DacHandle, &sConfig, channel) != HAL_OK) {
mbed_official 141:706f8dea204a 82 error("HAL_DAC_ConfigChannel failed");
mbed_official 141:706f8dea204a 83 }
mbed_official 141:706f8dea204a 84
mbed_official 141:706f8dea204a 85 if (HAL_DAC_Start(&DacHandle, channel) != HAL_OK) {
mbed_official 141:706f8dea204a 86 error("HAL_DAC_Start failed");
mbed_official 141:706f8dea204a 87 }
mbed_official 141:706f8dea204a 88
mbed_official 141:706f8dea204a 89 if (HAL_DAC_SetValue(&DacHandle, channel, DAC_ALIGN_12B_R, 0x000) != HAL_OK) {
mbed_official 141:706f8dea204a 90 error("HAL_DAC_SetValue failed");
mbed_official 141:706f8dea204a 91 }
mbed_official 141:706f8dea204a 92
mbed_official 141:706f8dea204a 93 }
mbed_official 141:706f8dea204a 94
mbed_official 141:706f8dea204a 95 void analogout_free(dac_t *obj)
mbed_official 141:706f8dea204a 96 {
mbed_official 141:706f8dea204a 97 }
mbed_official 141:706f8dea204a 98
mbed_official 141:706f8dea204a 99 static inline void dac_write(dac_t *obj, uint16_t value)
mbed_official 141:706f8dea204a 100 {
mbed_official 242:7074e42da0b2 101 HAL_StatusTypeDef status = HAL_ERROR;
mbed_official 141:706f8dea204a 102
mbed_official 141:706f8dea204a 103 if (obj->channel == PA_4) {
mbed_official 141:706f8dea204a 104 status = HAL_DAC_SetValue(&DacHandle, DAC_CHANNEL_1, DAC_ALIGN_12B_R, value);
mbed_official 141:706f8dea204a 105 } else if (obj->channel == PA_5) {
mbed_official 141:706f8dea204a 106 status = HAL_DAC_SetValue(&DacHandle, DAC_CHANNEL_2, DAC_ALIGN_12B_R, value);
mbed_official 141:706f8dea204a 107 }
mbed_official 141:706f8dea204a 108
mbed_official 141:706f8dea204a 109 if ( status != HAL_OK ) {
mbed_official 141:706f8dea204a 110 error("ADC pin mapping failed");
mbed_official 141:706f8dea204a 111 }
mbed_official 141:706f8dea204a 112 }
mbed_official 141:706f8dea204a 113
mbed_official 141:706f8dea204a 114 static inline int dac_read(dac_t *obj)
mbed_official 141:706f8dea204a 115 {
mbed_official 141:706f8dea204a 116 if (obj->channel == PA_4) {
mbed_official 141:706f8dea204a 117 return (int)HAL_DAC_GetValue(&DacHandle, DAC_CHANNEL_1);
mbed_official 141:706f8dea204a 118 } else if (obj->channel == PA_5) {
mbed_official 141:706f8dea204a 119 return (int)HAL_DAC_GetValue(&DacHandle, DAC_CHANNEL_2);
mbed_official 141:706f8dea204a 120 }
mbed_official 242:7074e42da0b2 121 return 0; /* Just silented warning */
mbed_official 141:706f8dea204a 122 }
mbed_official 141:706f8dea204a 123
mbed_official 141:706f8dea204a 124 void analogout_write(dac_t *obj, float value)
mbed_official 141:706f8dea204a 125 {
mbed_official 141:706f8dea204a 126 if (value < 0.0f) {
mbed_official 141:706f8dea204a 127 dac_write(obj, 0); // Min value
mbed_official 141:706f8dea204a 128 } else if (value > 1.0f) {
mbed_official 141:706f8dea204a 129 dac_write(obj, (uint16_t)RANGE_12BIT); // Max value
mbed_official 141:706f8dea204a 130 } else {
mbed_official 141:706f8dea204a 131 dac_write(obj, (uint16_t)(value * (float)RANGE_12BIT));
mbed_official 141:706f8dea204a 132 }
mbed_official 141:706f8dea204a 133 }
mbed_official 141:706f8dea204a 134
mbed_official 141:706f8dea204a 135 void analogout_write_u16(dac_t *obj, uint16_t value)
mbed_official 141:706f8dea204a 136 {
mbed_official 141:706f8dea204a 137 if (value > (uint16_t)RANGE_12BIT) {
mbed_official 141:706f8dea204a 138 value = (uint16_t)RANGE_12BIT; // Max value
mbed_official 141:706f8dea204a 139 }
mbed_official 141:706f8dea204a 140
mbed_official 141:706f8dea204a 141 dac_write(obj, value);
mbed_official 141:706f8dea204a 142 }
mbed_official 141:706f8dea204a 143
mbed_official 141:706f8dea204a 144 float analogout_read(dac_t *obj)
mbed_official 141:706f8dea204a 145 {
mbed_official 141:706f8dea204a 146
mbed_official 141:706f8dea204a 147 uint32_t value = dac_read(obj);
mbed_official 141:706f8dea204a 148 return (float)value * (1.0f / (float)RANGE_12BIT);
mbed_official 141:706f8dea204a 149 }
mbed_official 141:706f8dea204a 150
mbed_official 141:706f8dea204a 151 uint16_t analogout_read_u16(dac_t *obj)
mbed_official 141:706f8dea204a 152 {
mbed_official 141:706f8dea204a 153 return (uint16_t)dac_read(obj);
mbed_official 141:706f8dea204a 154 }
mbed_official 141:706f8dea204a 155
mbed_official 141:706f8dea204a 156 #endif // DEVICE_ANALOGOUT