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Last commit 20 Feb 2019 by 
mbed official
targets/hal/TARGET_STM/TARGET_STM32F0/analogout_api.c@630:825f75ca301e, 2015-09-28 (annotated)
- Committer:
- mbed_official
- Date:
- Mon Sep 28 10:45:10 2015 +0100
- Revision:
- 630:825f75ca301e
- Parent:
- 469:fc4922e0c183
Synchronized with git revision 54fbe4144faf309c37205a5d39fa665daa919f10
Full URL: https://github.com/mbedmicro/mbed/commit/54fbe4144faf309c37205a5d39fa665daa919f10/
NUCLEO_F031K6 : Add new target
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 219:993c9b0acbcc | 1 | /* mbed Microcontroller Library |
| mbed_official | 219:993c9b0acbcc | 2 | * Copyright (c) 2014, STMicroelectronics |
| mbed_official | 219:993c9b0acbcc | 3 | * All rights reserved. |
| mbed_official | 219:993c9b0acbcc | 4 | * |
| mbed_official | 219:993c9b0acbcc | 5 | * Redistribution and use in source and binary forms, with or without |
| mbed_official | 219:993c9b0acbcc | 6 | * modification, are permitted provided that the following conditions are met: |
| mbed_official | 219:993c9b0acbcc | 7 | * |
| mbed_official | 219:993c9b0acbcc | 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 219:993c9b0acbcc | 9 | * this list of conditions and the following disclaimer. |
| mbed_official | 219:993c9b0acbcc | 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 219:993c9b0acbcc | 11 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 219:993c9b0acbcc | 12 | * and/or other materials provided with the distribution. |
| mbed_official | 219:993c9b0acbcc | 13 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| mbed_official | 219:993c9b0acbcc | 14 | * may be used to endorse or promote products derived from this software |
| mbed_official | 219:993c9b0acbcc | 15 | * without specific prior written permission. |
| mbed_official | 219:993c9b0acbcc | 16 | * |
| mbed_official | 219:993c9b0acbcc | 17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| mbed_official | 219:993c9b0acbcc | 18 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| mbed_official | 219:993c9b0acbcc | 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| mbed_official | 219:993c9b0acbcc | 20 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| mbed_official | 219:993c9b0acbcc | 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 219:993c9b0acbcc | 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| mbed_official | 219:993c9b0acbcc | 23 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| mbed_official | 219:993c9b0acbcc | 24 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| mbed_official | 219:993c9b0acbcc | 25 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| mbed_official | 219:993c9b0acbcc | 26 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 219:993c9b0acbcc | 27 | */ |
| mbed_official | 239:8cadf13dff33 | 28 | #include "mbed_assert.h" |
| mbed_official | 219:993c9b0acbcc | 29 | #include "analogout_api.h" |
| mbed_official | 219:993c9b0acbcc | 30 | |
| mbed_official | 219:993c9b0acbcc | 31 | #if DEVICE_ANALOGOUT |
| mbed_official | 219:993c9b0acbcc | 32 | |
| mbed_official | 219:993c9b0acbcc | 33 | #include "cmsis.h" |
| mbed_official | 219:993c9b0acbcc | 34 | #include "pinmap.h" |
| mbed_official | 285:31249416b6f9 | 35 | #include "mbed_error.h" |
| mbed_official | 414:4ec4c5b614b0 | 36 | #include "PeripheralPins.h" |
| mbed_official | 219:993c9b0acbcc | 37 | |
| mbed_official | 219:993c9b0acbcc | 38 | #define DAC_RANGE (0xFFF) // 12 bits |
| mbed_official | 219:993c9b0acbcc | 39 | |
| mbed_official | 219:993c9b0acbcc | 40 | static DAC_HandleTypeDef DacHandle; |
| mbed_official | 219:993c9b0acbcc | 41 | |
| mbed_official | 630:825f75ca301e | 42 | void analogout_init(dac_t *obj, PinName pin) { |
| mbed_official | 219:993c9b0acbcc | 43 | DAC_ChannelConfTypeDef sConfig; |
| mbed_official | 219:993c9b0acbcc | 44 | |
| mbed_official | 219:993c9b0acbcc | 45 | DacHandle.Instance = DAC; |
| mbed_official | 219:993c9b0acbcc | 46 | |
| mbed_official | 219:993c9b0acbcc | 47 | // Get the peripheral name (DAC_1, ...) from the pin and assign it to the object |
| mbed_official | 219:993c9b0acbcc | 48 | obj->dac = (DACName)pinmap_peripheral(pin, PinMap_DAC); |
| mbed_official | 239:8cadf13dff33 | 49 | MBED_ASSERT(obj->dac != (DACName)NC); |
| mbed_official | 219:993c9b0acbcc | 50 | |
| mbed_official | 219:993c9b0acbcc | 51 | // Configure GPIO |
| mbed_official | 219:993c9b0acbcc | 52 | pinmap_pinout(pin, PinMap_DAC); |
| mbed_official | 219:993c9b0acbcc | 53 | |
| mbed_official | 219:993c9b0acbcc | 54 | // Save the channel for future use |
| mbed_official | 219:993c9b0acbcc | 55 | obj->pin = pin; |
| mbed_official | 219:993c9b0acbcc | 56 | |
| mbed_official | 219:993c9b0acbcc | 57 | // Enable DAC clock |
| mbed_official | 219:993c9b0acbcc | 58 | __DAC1_CLK_ENABLE(); |
| mbed_official | 219:993c9b0acbcc | 59 | |
| mbed_official | 219:993c9b0acbcc | 60 | // Configure DAC |
| mbed_official | 219:993c9b0acbcc | 61 | sConfig.DAC_Trigger = DAC_TRIGGER_NONE; |
| mbed_official | 219:993c9b0acbcc | 62 | sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_DISABLE; |
| mbed_official | 219:993c9b0acbcc | 63 | |
| mbed_official | 219:993c9b0acbcc | 64 | if (pin == PA_4) { |
| mbed_official | 219:993c9b0acbcc | 65 | HAL_DAC_ConfigChannel(&DacHandle, &sConfig, DAC_CHANNEL_1); |
| mbed_official | 219:993c9b0acbcc | 66 | } else { // PA_5 |
| mbed_official | 219:993c9b0acbcc | 67 | HAL_DAC_ConfigChannel(&DacHandle, &sConfig, DAC_CHANNEL_2); |
| mbed_official | 219:993c9b0acbcc | 68 | } |
| mbed_official | 219:993c9b0acbcc | 69 | |
| mbed_official | 219:993c9b0acbcc | 70 | analogout_write_u16(obj, 0); |
| mbed_official | 219:993c9b0acbcc | 71 | } |
| mbed_official | 219:993c9b0acbcc | 72 | |
| mbed_official | 630:825f75ca301e | 73 | void analogout_free(dac_t *obj) { |
| mbed_official | 219:993c9b0acbcc | 74 | // Reset DAC and disable clock |
| mbed_official | 219:993c9b0acbcc | 75 | __DAC1_FORCE_RESET(); |
| mbed_official | 219:993c9b0acbcc | 76 | __DAC1_RELEASE_RESET(); |
| mbed_official | 219:993c9b0acbcc | 77 | __DAC1_CLK_DISABLE(); |
| mbed_official | 219:993c9b0acbcc | 78 | |
| mbed_official | 219:993c9b0acbcc | 79 | // Configure GPIO |
| mbed_official | 219:993c9b0acbcc | 80 | pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); |
| mbed_official | 219:993c9b0acbcc | 81 | } |
| mbed_official | 219:993c9b0acbcc | 82 | |
| mbed_official | 630:825f75ca301e | 83 | static inline void dac_write(dac_t *obj, uint16_t value) { |
| mbed_official | 219:993c9b0acbcc | 84 | if (obj->pin == PA_4) { |
| mbed_official | 219:993c9b0acbcc | 85 | HAL_DAC_SetValue(&DacHandle, DAC_CHANNEL_1, DAC_ALIGN_12B_R, value); |
| mbed_official | 219:993c9b0acbcc | 86 | HAL_DAC_Start(&DacHandle, DAC_CHANNEL_1); |
| mbed_official | 219:993c9b0acbcc | 87 | } else { // PA_5 |
| mbed_official | 219:993c9b0acbcc | 88 | HAL_DAC_SetValue(&DacHandle, DAC_CHANNEL_2, DAC_ALIGN_12B_R, value); |
| mbed_official | 219:993c9b0acbcc | 89 | HAL_DAC_Start(&DacHandle, DAC_CHANNEL_2); |
| mbed_official | 219:993c9b0acbcc | 90 | } |
| mbed_official | 219:993c9b0acbcc | 91 | } |
| mbed_official | 219:993c9b0acbcc | 92 | |
| mbed_official | 630:825f75ca301e | 93 | static inline int dac_read(dac_t *obj) { |
| mbed_official | 219:993c9b0acbcc | 94 | if (obj->pin == PA_4) { |
| mbed_official | 219:993c9b0acbcc | 95 | return (int)HAL_DAC_GetValue(&DacHandle, DAC_CHANNEL_1); |
| mbed_official | 219:993c9b0acbcc | 96 | } else { // PA_5 |
| mbed_official | 219:993c9b0acbcc | 97 | return (int)HAL_DAC_GetValue(&DacHandle, DAC_CHANNEL_2); |
| mbed_official | 219:993c9b0acbcc | 98 | } |
| mbed_official | 219:993c9b0acbcc | 99 | } |
| mbed_official | 219:993c9b0acbcc | 100 | |
| mbed_official | 630:825f75ca301e | 101 | void analogout_write(dac_t *obj, float value) { |
| mbed_official | 219:993c9b0acbcc | 102 | if (value < 0.0f) { |
| mbed_official | 219:993c9b0acbcc | 103 | dac_write(obj, 0); // Min value |
| mbed_official | 219:993c9b0acbcc | 104 | } else if (value > 1.0f) { |
| mbed_official | 219:993c9b0acbcc | 105 | dac_write(obj, (uint16_t)DAC_RANGE); // Max value |
| mbed_official | 219:993c9b0acbcc | 106 | } else { |
| mbed_official | 219:993c9b0acbcc | 107 | dac_write(obj, (uint16_t)(value * (float)DAC_RANGE)); |
| mbed_official | 219:993c9b0acbcc | 108 | } |
| mbed_official | 219:993c9b0acbcc | 109 | } |
| mbed_official | 219:993c9b0acbcc | 110 | |
| mbed_official | 630:825f75ca301e | 111 | void analogout_write_u16(dac_t *obj, uint16_t value) { |
| mbed_official | 219:993c9b0acbcc | 112 | if (value > (uint16_t)DAC_RANGE) { |
| mbed_official | 219:993c9b0acbcc | 113 | dac_write(obj, (uint16_t)DAC_RANGE); // Max value |
| mbed_official | 219:993c9b0acbcc | 114 | } else { |
| mbed_official | 219:993c9b0acbcc | 115 | dac_write(obj, value); |
| mbed_official | 219:993c9b0acbcc | 116 | } |
| mbed_official | 219:993c9b0acbcc | 117 | } |
| mbed_official | 219:993c9b0acbcc | 118 | |
| mbed_official | 630:825f75ca301e | 119 | float analogout_read(dac_t *obj) { |
| mbed_official | 219:993c9b0acbcc | 120 | uint32_t value = dac_read(obj); |
| mbed_official | 219:993c9b0acbcc | 121 | return (float)((float)value * (1.0f / (float)DAC_RANGE)); |
| mbed_official | 219:993c9b0acbcc | 122 | } |
| mbed_official | 219:993c9b0acbcc | 123 | |
| mbed_official | 630:825f75ca301e | 124 | uint16_t analogout_read_u16(dac_t *obj) { |
| mbed_official | 219:993c9b0acbcc | 125 | return (uint16_t)dac_read(obj); |
| mbed_official | 219:993c9b0acbcc | 126 | } |
| mbed_official | 219:993c9b0acbcc | 127 | |
| mbed_official | 219:993c9b0acbcc | 128 | #endif // DEVICE_ANALOGOUT |
