Richard Vasquez / DMA_RAM_DAC

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stm32f3348_discovery.c@0:b079fa4ed182, 2016-11-02 (annotated)

Committer:
richardv
Date:
Wed Nov 02 23:50:52 2016 +0000
Revision:
0:b079fa4ed182
DMA RAM DAC

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richardv 0:b079fa4ed182 1 /**
richardv 0:b079fa4ed182 2 ******************************************************************************
richardv 0:b079fa4ed182 3 * @file stm32f3348_discovery.c
richardv 0:b079fa4ed182 4 * @author MCD Application Team
richardv 0:b079fa4ed182 5 * @version V1.0.0
richardv 0:b079fa4ed182 6 * @date 20-June-2014
richardv 0:b079fa4ed182 7 * @brief This file provides set of firmware functions to manage Leds,
richardv 0:b079fa4ed182 8 * push-button for STM32F3348 DISCO.
richardv 0:b079fa4ed182 9 ******************************************************************************
richardv 0:b079fa4ed182 10 * @attention
richardv 0:b079fa4ed182 11 *
richardv 0:b079fa4ed182 12 * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
richardv 0:b079fa4ed182 13 *
richardv 0:b079fa4ed182 14 * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
richardv 0:b079fa4ed182 15 * You may not use this file except in compliance with the License.
richardv 0:b079fa4ed182 16 * You may obtain a copy of the License at:
richardv 0:b079fa4ed182 17 *
richardv 0:b079fa4ed182 18 * http://www.st.com/software_license_agreement_liberty_v2
richardv 0:b079fa4ed182 19 *
richardv 0:b079fa4ed182 20 * Unless required by applicable law or agreed to in writing, software
richardv 0:b079fa4ed182 21 * distributed under the License is distributed on an "AS IS" BASIS,
richardv 0:b079fa4ed182 22 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
richardv 0:b079fa4ed182 23 * See the License for the specific language governing permissions and
richardv 0:b079fa4ed182 24 * limitations under the License.
richardv 0:b079fa4ed182 25 *
richardv 0:b079fa4ed182 26 ******************************************************************************
richardv 0:b079fa4ed182 27 */
richardv 0:b079fa4ed182 28
richardv 0:b079fa4ed182 29 /* Includes ------------------------------------------------------------------*/
richardv 0:b079fa4ed182 30 #include "stm32f3348_discovery.h"
richardv 0:b079fa4ed182 31
richardv 0:b079fa4ed182 32 /** @addtogroup Utilities
richardv 0:b079fa4ed182 33 * @{
richardv 0:b079fa4ed182 34 */
richardv 0:b079fa4ed182 35
richardv 0:b079fa4ed182 36 /** @addtogroup STM32F3348_DISCOVERY
richardv 0:b079fa4ed182 37 * @{
richardv 0:b079fa4ed182 38 */
richardv 0:b079fa4ed182 39
richardv 0:b079fa4ed182 40 /** @defgroup STM32F3348_DISCOVERY_LOW_LEVEL
richardv 0:b079fa4ed182 41 * @brief This file provides firmware functions to manage Leds and push-button
richardv 0:b079fa4ed182 42 * available on STM32F3348-DISCO board from STMicroelectronics.
richardv 0:b079fa4ed182 43 * @{
richardv 0:b079fa4ed182 44 */
richardv 0:b079fa4ed182 45
richardv 0:b079fa4ed182 46
richardv 0:b079fa4ed182 47 /* Private typedef -----------------------------------------------------------*/
richardv 0:b079fa4ed182 48 /* Private define ------------------------------------------------------------*/
richardv 0:b079fa4ed182 49 /* Private macro -------------------------------------------------------------*/
richardv 0:b079fa4ed182 50 /* Private variables ---------------------------------------------------------*/
richardv 0:b079fa4ed182 51
richardv 0:b079fa4ed182 52 GPIO_TypeDef* GPIO_PORT[LEDn] = {LED3_GPIO_PORT, LED4_GPIO_PORT,
richardv 0:b079fa4ed182 53 LED5_GPIO_PORT, LED6_GPIO_PORT};
richardv 0:b079fa4ed182 54
richardv 0:b079fa4ed182 55 const uint16_t GPIO_PIN[LEDn] = {LED3_PIN, LED4_PIN,
richardv 0:b079fa4ed182 56 LED5_PIN, LED6_PIN};
richardv 0:b079fa4ed182 57
richardv 0:b079fa4ed182 58 const uint32_t GPIO_CLK[LEDn] = {LED3_GPIO_CLK, LED4_GPIO_CLK,
richardv 0:b079fa4ed182 59 LED5_GPIO_CLK, LED6_GPIO_CLK};
richardv 0:b079fa4ed182 60
richardv 0:b079fa4ed182 61 GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {USER_BUTTON_GPIO_PORT};
richardv 0:b079fa4ed182 62
richardv 0:b079fa4ed182 63 const uint16_t BUTTON_PIN[BUTTONn] = {USER_BUTTON_PIN};
richardv 0:b079fa4ed182 64
richardv 0:b079fa4ed182 65 const uint32_t BUTTON_CLK[BUTTONn] = {USER_BUTTON_GPIO_CLK};
richardv 0:b079fa4ed182 66
richardv 0:b079fa4ed182 67 const uint16_t BUTTON_EXTI_LINE[BUTTONn] = {USER_BUTTON_EXTI_LINE};
richardv 0:b079fa4ed182 68
richardv 0:b079fa4ed182 69 const uint8_t BUTTON_PORT_SOURCE[BUTTONn] = {USER_BUTTON_EXTI_PORT_SOURCE};
richardv 0:b079fa4ed182 70
richardv 0:b079fa4ed182 71 const uint8_t BUTTON_PIN_SOURCE[BUTTONn] = {USER_BUTTON_EXTI_PIN_SOURCE};
richardv 0:b079fa4ed182 72
richardv 0:b079fa4ed182 73 const uint8_t BUTTON_IRQn[BUTTONn] = {USER_BUTTON_EXTI_IRQn};
richardv 0:b079fa4ed182 74
richardv 0:b079fa4ed182 75
richardv 0:b079fa4ed182 76 /* Private function prototypes -----------------------------------------------*/
richardv 0:b079fa4ed182 77
richardv 0:b079fa4ed182 78 /**
richardv 0:b079fa4ed182 79 * @brief Configures LED GPIO.
richardv 0:b079fa4ed182 80 * @param Led: Specifies the Led to be configured.
richardv 0:b079fa4ed182 81 * This parameter can be one of following parameters:
richardv 0:b079fa4ed182 82 * @arg LED3
richardv 0:b079fa4ed182 83 * @arg LED4
richardv 0:b079fa4ed182 84 * @arg LED5
richardv 0:b079fa4ed182 85 * @arg LED6
richardv 0:b079fa4ed182 86 * @retval None
richardv 0:b079fa4ed182 87 */
richardv 0:b079fa4ed182 88 void STM_EVAL_LEDInit(Led_TypeDef Led)
richardv 0:b079fa4ed182 89 {
richardv 0:b079fa4ed182 90 GPIO_InitTypeDef GPIO_InitStructure;
richardv 0:b079fa4ed182 91
richardv 0:b079fa4ed182 92 /* Enable the GPIO_LED Clock */
richardv 0:b079fa4ed182 93 RCC_AHBPeriphClockCmd(GPIO_CLK[Led], ENABLE);
richardv 0:b079fa4ed182 94
richardv 0:b079fa4ed182 95 /* Configure the GPIO_LED pin */
richardv 0:b079fa4ed182 96 GPIO_InitStructure.GPIO_Pin = GPIO_PIN[Led];
richardv 0:b079fa4ed182 97 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
richardv 0:b079fa4ed182 98 GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
richardv 0:b079fa4ed182 99 GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
richardv 0:b079fa4ed182 100 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
richardv 0:b079fa4ed182 101 GPIO_Init(GPIO_PORT[Led], &GPIO_InitStructure);
richardv 0:b079fa4ed182 102 }
richardv 0:b079fa4ed182 103
richardv 0:b079fa4ed182 104 /**
richardv 0:b079fa4ed182 105 * @brief Turns selected LED On.
richardv 0:b079fa4ed182 106 * @param Led: Specifies the Led to be set on.
richardv 0:b079fa4ed182 107 * This parameter can be one of following parameters:
richardv 0:b079fa4ed182 108 * @arg LED3
richardv 0:b079fa4ed182 109 * @arg LED4
richardv 0:b079fa4ed182 110 * @arg LED5
richardv 0:b079fa4ed182 111 * @arg LED6
richardv 0:b079fa4ed182 112 * @retval None
richardv 0:b079fa4ed182 113 */
richardv 0:b079fa4ed182 114 void STM_EVAL_LEDOn(Led_TypeDef Led)
richardv 0:b079fa4ed182 115 {
richardv 0:b079fa4ed182 116 GPIO_PORT[Led]->BSRR = GPIO_PIN[Led];
richardv 0:b079fa4ed182 117 }
richardv 0:b079fa4ed182 118
richardv 0:b079fa4ed182 119 /**
richardv 0:b079fa4ed182 120 * @brief Turns selected LED Off.
richardv 0:b079fa4ed182 121 * @param Led: Specifies the Led to be set off.
richardv 0:b079fa4ed182 122 * This parameter can be one of following parameters:
richardv 0:b079fa4ed182 123 * @arg LED3
richardv 0:b079fa4ed182 124 * @arg LED4
richardv 0:b079fa4ed182 125 * @arg LED5
richardv 0:b079fa4ed182 126 * @arg LED6
richardv 0:b079fa4ed182 127 * @retval None
richardv 0:b079fa4ed182 128 */
richardv 0:b079fa4ed182 129 void STM_EVAL_LEDOff(Led_TypeDef Led)
richardv 0:b079fa4ed182 130 {
richardv 0:b079fa4ed182 131 GPIO_PORT[Led]->BRR = GPIO_PIN[Led];
richardv 0:b079fa4ed182 132 }
richardv 0:b079fa4ed182 133
richardv 0:b079fa4ed182 134 /**
richardv 0:b079fa4ed182 135 * @brief Toggles the selected LED.
richardv 0:b079fa4ed182 136 * @param Led: Specifies the Led to be toggled.
richardv 0:b079fa4ed182 137 * This parameter can be one of following parameters:
richardv 0:b079fa4ed182 138 * @arg LED3
richardv 0:b079fa4ed182 139 * @arg LED4
richardv 0:b079fa4ed182 140 * @arg LED5
richardv 0:b079fa4ed182 141 * @arg LED6
richardv 0:b079fa4ed182 142 * @retval None
richardv 0:b079fa4ed182 143 */
richardv 0:b079fa4ed182 144 void STM_EVAL_LEDToggle(Led_TypeDef Led)
richardv 0:b079fa4ed182 145 {
richardv 0:b079fa4ed182 146 GPIO_PORT[Led]->ODR ^= GPIO_PIN[Led];
richardv 0:b079fa4ed182 147 }
richardv 0:b079fa4ed182 148
richardv 0:b079fa4ed182 149 /**
richardv 0:b079fa4ed182 150 * @brief Configures Button GPIO and EXTI Line.
richardv 0:b079fa4ed182 151 * @param Button: Specifies the Button to be configured.
richardv 0:b079fa4ed182 152 * This parameter should be: BUTTON_USER
richardv 0:b079fa4ed182 153 * @param Button_Mode: Specifies Button mode.
richardv 0:b079fa4ed182 154 * This parameter can be one of following parameters:
richardv 0:b079fa4ed182 155 * @arg BUTTON_MODE_GPIO: Button will be used as simple IO
richardv 0:b079fa4ed182 156 * @arg BUTTON_MODE_EXTI: Button will be connected to EXTI line with interrupt
richardv 0:b079fa4ed182 157 * generation capability
richardv 0:b079fa4ed182 158 * @retval None
richardv 0:b079fa4ed182 159 */
richardv 0:b079fa4ed182 160 void STM_EVAL_PBInit(Button_TypeDef Button, ButtonMode_TypeDef Button_Mode)
richardv 0:b079fa4ed182 161 {
richardv 0:b079fa4ed182 162 GPIO_InitTypeDef GPIO_InitStructure;
richardv 0:b079fa4ed182 163 EXTI_InitTypeDef EXTI_InitStructure;
richardv 0:b079fa4ed182 164 NVIC_InitTypeDef NVIC_InitStructure;
richardv 0:b079fa4ed182 165
richardv 0:b079fa4ed182 166 /* Enable the BUTTON Clock */
richardv 0:b079fa4ed182 167 RCC_AHBPeriphClockCmd(BUTTON_CLK[Button], ENABLE);
richardv 0:b079fa4ed182 168 RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
richardv 0:b079fa4ed182 169
richardv 0:b079fa4ed182 170 /* Configure Button pin as input */
richardv 0:b079fa4ed182 171 GPIO_InitStructure.GPIO_Pin = BUTTON_PIN[Button];
richardv 0:b079fa4ed182 172 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
richardv 0:b079fa4ed182 173 GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
richardv 0:b079fa4ed182 174
richardv 0:b079fa4ed182 175 GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStructure);
richardv 0:b079fa4ed182 176
richardv 0:b079fa4ed182 177 if (Button_Mode == BUTTON_MODE_EXTI)
richardv 0:b079fa4ed182 178 {
richardv 0:b079fa4ed182 179 /* Connect Button EXTI Line to Button GPIO Pin */
richardv 0:b079fa4ed182 180 SYSCFG_EXTILineConfig(BUTTON_PORT_SOURCE[Button], BUTTON_PIN_SOURCE[Button]);
richardv 0:b079fa4ed182 181
richardv 0:b079fa4ed182 182 /* Configure Button EXTI line */
richardv 0:b079fa4ed182 183 EXTI_InitStructure.EXTI_Line = BUTTON_EXTI_LINE[Button];
richardv 0:b079fa4ed182 184 EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
richardv 0:b079fa4ed182 185 EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
richardv 0:b079fa4ed182 186 EXTI_InitStructure.EXTI_LineCmd = ENABLE;
richardv 0:b079fa4ed182 187 EXTI_Init(&EXTI_InitStructure);
richardv 0:b079fa4ed182 188
richardv 0:b079fa4ed182 189 /* Enable and set Button EXTI Interrupt to the lowest priority */
richardv 0:b079fa4ed182 190 NVIC_InitStructure.NVIC_IRQChannel = BUTTON_IRQn[Button];
richardv 0:b079fa4ed182 191 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;
richardv 0:b079fa4ed182 192 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
richardv 0:b079fa4ed182 193 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
richardv 0:b079fa4ed182 194
richardv 0:b079fa4ed182 195 NVIC_Init(&NVIC_InitStructure);
richardv 0:b079fa4ed182 196
richardv 0:b079fa4ed182 197 }
richardv 0:b079fa4ed182 198 }
richardv 0:b079fa4ed182 199
richardv 0:b079fa4ed182 200 /**
richardv 0:b079fa4ed182 201 * @brief Returns the selected Button state.
richardv 0:b079fa4ed182 202 * @param Button: Specifies the Button to be checked.
richardv 0:b079fa4ed182 203 * This parameter should be: BUTTON_USER
richardv 0:b079fa4ed182 204 * @retval The Button GPIO pin value.
richardv 0:b079fa4ed182 205 */
richardv 0:b079fa4ed182 206 uint32_t STM_EVAL_PBGetState(Button_TypeDef Button)
richardv 0:b079fa4ed182 207 {
richardv 0:b079fa4ed182 208 return GPIO_ReadInputDataBit(BUTTON_PORT[Button], BUTTON_PIN[Button]);
richardv 0:b079fa4ed182 209 }
richardv 0:b079fa4ed182 210
richardv 0:b079fa4ed182 211 /**
richardv 0:b079fa4ed182 212 * @}
richardv 0:b079fa4ed182 213 */
richardv 0:b079fa4ed182 214
richardv 0:b079fa4ed182 215 /**
richardv 0:b079fa4ed182 216 * @}
richardv 0:b079fa4ed182 217 */
richardv 0:b079fa4ed182 218
richardv 0:b079fa4ed182 219 /**
richardv 0:b079fa4ed182 220 * @}
richardv 0:b079fa4ed182 221 */
richardv 0:b079fa4ed182 222
richardv 0:b079fa4ed182 223 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/