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Last commit 20 Feb 2019 by 
mbed official
targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/analogout_api.c@125:23cc3068a9e4, 2014-03-19 (annotated)
- Committer:
- mbed_official
- Date:
- Wed Mar 19 10:15:22 2014 +0000
- Revision:
- 125:23cc3068a9e4
- Child:
- 135:067cc8ba23da
Synchronized with git revision ace35dfba3748c7cdc102eb38ec6b9e1067c3252
Full URL: https://github.com/mbedmicro/mbed/commit/ace35dfba3748c7cdc102eb38ec6b9e1067c3252/
[NUCLEO_F302R8] Add cmsis and hal files + change F401RE clock to 84MHz
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 125:23cc3068a9e4 | 1 | /* mbed Microcontroller Library |
| mbed_official | 125:23cc3068a9e4 | 2 | * Copyright (c) 2014, STMicroelectronics |
| mbed_official | 125:23cc3068a9e4 | 3 | * All rights reserved. |
| mbed_official | 125:23cc3068a9e4 | 4 | * |
| mbed_official | 125:23cc3068a9e4 | 5 | * Redistribution and use in source and binary forms, with or without |
| mbed_official | 125:23cc3068a9e4 | 6 | * modification, are permitted provided that the following conditions are met: |
| mbed_official | 125:23cc3068a9e4 | 7 | * |
| mbed_official | 125:23cc3068a9e4 | 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 125:23cc3068a9e4 | 9 | * this list of conditions and the following disclaimer. |
| mbed_official | 125:23cc3068a9e4 | 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 125:23cc3068a9e4 | 11 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 125:23cc3068a9e4 | 12 | * and/or other materials provided with the distribution. |
| mbed_official | 125:23cc3068a9e4 | 13 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| mbed_official | 125:23cc3068a9e4 | 14 | * may be used to endorse or promote products derived from this software |
| mbed_official | 125:23cc3068a9e4 | 15 | * without specific prior written permission. |
| mbed_official | 125:23cc3068a9e4 | 16 | * |
| mbed_official | 125:23cc3068a9e4 | 17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| mbed_official | 125:23cc3068a9e4 | 18 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| mbed_official | 125:23cc3068a9e4 | 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| mbed_official | 125:23cc3068a9e4 | 20 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| mbed_official | 125:23cc3068a9e4 | 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 125:23cc3068a9e4 | 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| mbed_official | 125:23cc3068a9e4 | 23 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| mbed_official | 125:23cc3068a9e4 | 24 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| mbed_official | 125:23cc3068a9e4 | 25 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| mbed_official | 125:23cc3068a9e4 | 26 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 125:23cc3068a9e4 | 27 | */ |
| mbed_official | 125:23cc3068a9e4 | 28 | #include "analogout_api.h" |
| mbed_official | 125:23cc3068a9e4 | 29 | |
| mbed_official | 125:23cc3068a9e4 | 30 | #if DEVICE_ANALOGOUT |
| mbed_official | 125:23cc3068a9e4 | 31 | |
| mbed_official | 125:23cc3068a9e4 | 32 | #include "cmsis.h" |
| mbed_official | 125:23cc3068a9e4 | 33 | #include "pinmap.h" |
| mbed_official | 125:23cc3068a9e4 | 34 | #include "error.h" |
| mbed_official | 125:23cc3068a9e4 | 35 | |
| mbed_official | 125:23cc3068a9e4 | 36 | #define RANGE_12BIT (0xFFF) |
| mbed_official | 125:23cc3068a9e4 | 37 | |
| mbed_official | 125:23cc3068a9e4 | 38 | static const PinMap PinMap_DAC[] = { |
| mbed_official | 125:23cc3068a9e4 | 39 | {PA_4, DAC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // DAC_OUT1 |
| mbed_official | 125:23cc3068a9e4 | 40 | {NC, NC, 0} |
| mbed_official | 125:23cc3068a9e4 | 41 | }; |
| mbed_official | 125:23cc3068a9e4 | 42 | |
| mbed_official | 125:23cc3068a9e4 | 43 | void analogout_init(dac_t *obj, PinName pin) { |
| mbed_official | 125:23cc3068a9e4 | 44 | DAC_TypeDef *dac; |
| mbed_official | 125:23cc3068a9e4 | 45 | DAC_InitTypeDef DAC_InitStructure; |
| mbed_official | 125:23cc3068a9e4 | 46 | |
| mbed_official | 125:23cc3068a9e4 | 47 | // Get the peripheral name (DAC_1, ...) from the pin and assign it to the object |
| mbed_official | 125:23cc3068a9e4 | 48 | obj->dac = (DACName)pinmap_peripheral(pin, PinMap_DAC); |
| mbed_official | 125:23cc3068a9e4 | 49 | |
| mbed_official | 125:23cc3068a9e4 | 50 | if (obj->dac == (DACName)NC) { |
| mbed_official | 125:23cc3068a9e4 | 51 | error("DAC pin mapping failed"); |
| mbed_official | 125:23cc3068a9e4 | 52 | } |
| mbed_official | 125:23cc3068a9e4 | 53 | |
| mbed_official | 125:23cc3068a9e4 | 54 | dac = (DAC_TypeDef *)(obj->dac); |
| mbed_official | 125:23cc3068a9e4 | 55 | |
| mbed_official | 125:23cc3068a9e4 | 56 | // Configure GPIO |
| mbed_official | 125:23cc3068a9e4 | 57 | pinmap_pinout(pin, PinMap_DAC); |
| mbed_official | 125:23cc3068a9e4 | 58 | |
| mbed_official | 125:23cc3068a9e4 | 59 | // Save the channel for the write and read functions |
| mbed_official | 125:23cc3068a9e4 | 60 | obj->channel = pin; |
| mbed_official | 125:23cc3068a9e4 | 61 | |
| mbed_official | 125:23cc3068a9e4 | 62 | // Enable DAC clock |
| mbed_official | 125:23cc3068a9e4 | 63 | RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE); |
| mbed_official | 125:23cc3068a9e4 | 64 | |
| mbed_official | 125:23cc3068a9e4 | 65 | // Configure and enable DAC channel |
| mbed_official | 125:23cc3068a9e4 | 66 | DAC_StructInit(&DAC_InitStructure); |
| mbed_official | 125:23cc3068a9e4 | 67 | DAC_Init(dac, DAC_Channel_1, &DAC_InitStructure); |
| mbed_official | 125:23cc3068a9e4 | 68 | DAC_Cmd(dac, DAC_Channel_1, ENABLE); |
| mbed_official | 125:23cc3068a9e4 | 69 | |
| mbed_official | 125:23cc3068a9e4 | 70 | analogout_write_u16(obj, 0); |
| mbed_official | 125:23cc3068a9e4 | 71 | } |
| mbed_official | 125:23cc3068a9e4 | 72 | |
| mbed_official | 125:23cc3068a9e4 | 73 | void analogout_free(dac_t *obj) { |
| mbed_official | 125:23cc3068a9e4 | 74 | } |
| mbed_official | 125:23cc3068a9e4 | 75 | |
| mbed_official | 125:23cc3068a9e4 | 76 | static inline void dac_write(dac_t *obj, uint16_t value) { |
| mbed_official | 125:23cc3068a9e4 | 77 | DAC_TypeDef *dac = (DAC_TypeDef *)(obj->dac); |
| mbed_official | 125:23cc3068a9e4 | 78 | DAC_SetChannel1Data(dac, DAC_Align_12b_R, value); |
| mbed_official | 125:23cc3068a9e4 | 79 | } |
| mbed_official | 125:23cc3068a9e4 | 80 | |
| mbed_official | 125:23cc3068a9e4 | 81 | static inline int dac_read(dac_t *obj) { |
| mbed_official | 125:23cc3068a9e4 | 82 | DAC_TypeDef *dac = (DAC_TypeDef *)(obj->dac); |
| mbed_official | 125:23cc3068a9e4 | 83 | return (int)DAC_GetDataOutputValue(dac, DAC_Channel_1); |
| mbed_official | 125:23cc3068a9e4 | 84 | } |
| mbed_official | 125:23cc3068a9e4 | 85 | |
| mbed_official | 125:23cc3068a9e4 | 86 | void analogout_write(dac_t *obj, float value) { |
| mbed_official | 125:23cc3068a9e4 | 87 | if (value < 0.0f) { |
| mbed_official | 125:23cc3068a9e4 | 88 | dac_write(obj, 0); // Min value |
| mbed_official | 125:23cc3068a9e4 | 89 | } else if (value > 1.0f) { |
| mbed_official | 125:23cc3068a9e4 | 90 | dac_write(obj, (uint16_t)RANGE_12BIT); // Max value |
| mbed_official | 125:23cc3068a9e4 | 91 | } else { |
| mbed_official | 125:23cc3068a9e4 | 92 | dac_write(obj, (uint16_t)(value * (float)RANGE_12BIT)); |
| mbed_official | 125:23cc3068a9e4 | 93 | } |
| mbed_official | 125:23cc3068a9e4 | 94 | } |
| mbed_official | 125:23cc3068a9e4 | 95 | |
| mbed_official | 125:23cc3068a9e4 | 96 | void analogout_write_u16(dac_t *obj, uint16_t value) { |
| mbed_official | 125:23cc3068a9e4 | 97 | if (value > (uint16_t)RANGE_12BIT) { |
| mbed_official | 125:23cc3068a9e4 | 98 | dac_write(obj, (uint16_t)RANGE_12BIT); // Max value |
| mbed_official | 125:23cc3068a9e4 | 99 | } |
| mbed_official | 125:23cc3068a9e4 | 100 | else { |
| mbed_official | 125:23cc3068a9e4 | 101 | dac_write(obj, value); |
| mbed_official | 125:23cc3068a9e4 | 102 | } |
| mbed_official | 125:23cc3068a9e4 | 103 | } |
| mbed_official | 125:23cc3068a9e4 | 104 | |
| mbed_official | 125:23cc3068a9e4 | 105 | float analogout_read(dac_t *obj) { |
| mbed_official | 125:23cc3068a9e4 | 106 | uint32_t value = dac_read(obj); |
| mbed_official | 125:23cc3068a9e4 | 107 | return (float)value * (1.0f / (float)RANGE_12BIT); |
| mbed_official | 125:23cc3068a9e4 | 108 | } |
| mbed_official | 125:23cc3068a9e4 | 109 | |
| mbed_official | 125:23cc3068a9e4 | 110 | uint16_t analogout_read_u16(dac_t *obj) { |
| mbed_official | 125:23cc3068a9e4 | 111 | return (uint16_t)dac_read(obj); |
| mbed_official | 125:23cc3068a9e4 | 112 | } |
| mbed_official | 125:23cc3068a9e4 | 113 | |
| mbed_official | 125:23cc3068a9e4 | 114 | #endif // DEVICE_ANALOGOUT |
