/** ****************************************************************************** * @file stm32_eval.c * @author MCD Application Team * @version V3.1.0 * @date 06/19/2009 * @brief This file provides firmware functions to manage Leds, push-buttons * and COM ports available on STM32 Evaluation Boards from STMicroelectronics. ****************************************************************************** * @copy * * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. * *

© COPYRIGHT 2009 STMicroelectronics

*/ /* Includes ------------------------------------------------------------------*/ #include "stm32_eval.h" /** @addtogroup Utilities * @{ */ /** @defgroup STM32_EVAL * @brief This file provides firmware functions to manage Leds, push-buttons * and COM ports available on STM32 Evaluation Boards from STMicroelectronics. * @{ */ /** @defgroup STM32_EVAL_Private_TypesDefinitions * @{ */ /** * @} */ /** @defgroup STM32_EVAL_Private_Defines * @{ */ /** * @} */ /** @defgroup STM32_EVAL_Private_Macros * @{ */ /** * @} */ /** @defgroup STM32_EVAL_Private_Variables * @{ */ GPIO_TypeDef* GPIO_PORT[LEDn] = {LED1_GPIO_PORT, LED2_GPIO_PORT, LED3_GPIO_PORT, LED4_GPIO_PORT}; const uint16_t GPIO_PIN[LEDn] = {LED1_GPIO_PIN, LED2_GPIO_PIN, LED3_GPIO_PIN, LED4_GPIO_PIN}; const uint32_t GPIO_CLK[LEDn] = {LED1_GPIO_CLK, LED2_GPIO_CLK, LED3_GPIO_CLK, LED4_GPIO_CLK}; #ifdef USE_STM3210C_EVAL GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {WAKEUP_BUTTON_PORT, TAMPER_BUTTON_PORT, KEY_BUTTON_PORT}; const uint16_t BUTTON_PIN[BUTTONn] = {WAKEUP_BUTTON_PIN, TAMPER_BUTTON_PIN, KEY_BUTTON_PIN}; const uint32_t BUTTON_CLK[BUTTONn] = {WAKEUP_BUTTON_CLK, TAMPER_BUTTON_CLK, KEY_BUTTON_CLK}; const uint16_t BUTTON_EXTI_LINE[BUTTONn] = {WAKEUP_BUTTON_EXTI_LINE, TAMPER_BUTTON_EXTI_LINE, KEY_BUTTON_EXTI_LINE}; const uint16_t BUTTON_PORT_SOURCE[BUTTONn] = {WAKEUP_BUTTON_PORT_SOURCE, TAMPER_BUTTON_PORT_SOURCE, KEY_BUTTON_PORT_SOURCE}; const uint16_t BUTTON_PIN_SOURCE[BUTTONn] = {WAKEUP_BUTTON_PIN_SOURCE, TAMPER_BUTTON_PIN_SOURCE, KEY_BUTTON_PIN_SOURCE}; const uint16_t BUTTON_IRQn[BUTTONn] = {WAKEUP_BUTTON_IRQn, TAMPER_BUTTON_IRQn, KEY_BUTTON_IRQn}; USART_TypeDef* COM_USART[COMn] = {EVAL_COM1}; GPIO_TypeDef* COM_PORT[COMn] = {EVAL_COM1_GPIO}; const uint32_t COM_USART_CLK[COMn] = {EVAL_COM1_CLK}; const uint32_t COM_POR_CLK[COMn] = {EVAL_COM1_GPIO_CLK}; const uint16_t COM_TX_PIN[COMn] = {EVAL_COM1_TxPin}; const uint16_t COM_RX_PIN[COMn] = {EVAL_COM1_RxPin}; #else GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {WAKEUP_BUTTON_PORT, TAMPER_BUTTON_PORT, KEY_BUTTON_PORT, RIGHT_BUTTON_PORT, LEFT_BUTTON_PORT, UP_BUTTON_PORT, DOWN_BUTTON_PORT, SEL_BUTTON_PORT}; const uint16_t BUTTON_PIN[BUTTONn] = {WAKEUP_BUTTON_PIN, TAMPER_BUTTON_PIN, KEY_BUTTON_PIN, RIGHT_BUTTON_PIN, LEFT_BUTTON_PIN, UP_BUTTON_PIN, DOWN_BUTTON_PIN, SEL_BUTTON_PIN}; const uint32_t BUTTON_CLK[BUTTONn] = {WAKEUP_BUTTON_CLK, TAMPER_BUTTON_CLK, KEY_BUTTON_CLK, RIGHT_BUTTON_CLK, LEFT_BUTTON_CLK, UP_BUTTON_CLK, DOWN_BUTTON_CLK, SEL_BUTTON_CLK}; const uint16_t BUTTON_EXTI_LINE[BUTTONn] = {WAKEUP_BUTTON_EXTI_LINE, TAMPER_BUTTON_EXTI_LINE, KEY_BUTTON_EXTI_LINE, RIGHT_BUTTON_EXTI_LINE, LEFT_BUTTON_EXTI_LINE, UP_BUTTON_EXTI_LINE, DOWN_BUTTON_EXTI_LINE, SEL_BUTTON_EXTI_LINE}; const uint16_t BUTTON_PORT_SOURCE[BUTTONn] = {WAKEUP_BUTTON_PORT_SOURCE, TAMPER_BUTTON_PORT_SOURCE, KEY_BUTTON_PORT_SOURCE, RIGHT_BUTTON_PORT_SOURCE, LEFT_BUTTON_PORT_SOURCE, UP_BUTTON_PORT_SOURCE, DOWN_BUTTON_PORT_SOURCE, SEL_BUTTON_PORT_SOURCE}; const uint16_t BUTTON_PIN_SOURCE[BUTTONn] = {WAKEUP_BUTTON_PIN_SOURCE, TAMPER_BUTTON_PIN_SOURCE, KEY_BUTTON_PIN_SOURCE, RIGHT_BUTTON_PIN_SOURCE, LEFT_BUTTON_PIN_SOURCE, UP_BUTTON_PIN_SOURCE, DOWN_BUTTON_PIN_SOURCE, SEL_BUTTON_PIN_SOURCE}; const uint16_t BUTTON_IRQn[BUTTONn] = {WAKEUP_BUTTON_IRQn, TAMPER_BUTTON_IRQn, KEY_BUTTON_IRQn, RIGHT_BUTTON_IRQn, LEFT_BUTTON_IRQn, UP_BUTTON_IRQn, DOWN_BUTTON_IRQn, SEL_BUTTON_IRQn}; USART_TypeDef* COM_USART[COMn] = {EVAL_COM1, EVAL_COM2}; GPIO_TypeDef* COM_PORT[COMn] = {EVAL_COM1_GPIO, EVAL_COM2_GPIO}; const uint32_t COM_USART_CLK[COMn] = {EVAL_COM1_CLK, EVAL_COM2_CLK}; const uint32_t COM_POR_CLK[COMn] = {EVAL_COM1_GPIO_CLK, EVAL_COM2_GPIO_CLK}; const uint16_t COM_TX_PIN[COMn] = {EVAL_COM1_TxPin, EVAL_COM2_TxPin}; const uint16_t COM_RX_PIN[COMn] = {EVAL_COM1_RxPin, EVAL_COM2_RxPin}; #endif /** * @} */ /** @defgroup STM32_EVAL_Private_FunctionPrototypes * @{ */ /** * @} */ /** @defgroup STM32_EVAL_Private_Functions * @{ */ /** * @brief Configures LED GPIO. * @param Led: Specifies the Led to be configured. * This parameter can be one of following parameters: * @arg LED1 * @arg LED2 * @arg LED3 * @arg LED4 * @retval None */ void STM_EVAL_LEDInit(Led_TypeDef Led) { GPIO_InitTypeDef GPIO_InitStructure; /* Enable the GPIO_LED Clock */ RCC_APB2PeriphClockCmd(GPIO_CLK[Led], ENABLE); /* Configure the GPIO_LED pin */ GPIO_InitStructure.GPIO_Pin = GPIO_PIN[Led]; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIO_PORT[Led], &GPIO_InitStructure); } /** * @brief Turns selected LED On. * @param Led: Specifies the Led to be set on. * This parameter can be one of following parameters: * @arg LED1 * @arg LED2 * @arg LED3 * @arg LED4 * @retval None */ void STM_EVAL_LEDOn(Led_TypeDef Led) { GPIO_PORT[Led]->BSRR = GPIO_PIN[Led]; } /** * @brief Turns selected LED Off. * @param Led: Specifies the Led to be set off. * This parameter can be one of following parameters: * @arg LED1 * @arg LED2 * @arg LED3 * @arg LED4 * @retval None */ void STM_EVAL_LEDOff(Led_TypeDef Led) { GPIO_PORT[Led]->BRR = GPIO_PIN[Led]; } /** * @brief Toggles the selected LED. * @param Led: Specifies the Led to be toggled. * This parameter can be one of following parameters: * @arg LED1 * @arg LED2 * @arg LED3 * @arg LED4 * @retval None */ void STM_EVAL_LEDToggle(Led_TypeDef Led) { GPIO_PORT[Led]->ODR ^= GPIO_PIN[Led]; } /** * @brief Configures Button GPIO and EXTI Line. * @param Button: Specifies the Button to be configured. * This parameter can be one of following parameters: * @arg Button_WAKEUP: Wakeup Push Button * @arg Button_TAMPER: Tamper Push Button * @arg Button_KEY: Key Push Button * @arg Button_RIGHT: Joystick Right Push Button * @arg Button_LEFT: Joystick Left Push Button * @arg Button_UP: Joystick Up Push Button * @arg Button_DOWN: Joystick Down Push Button * @arg Button_SEL: Joystick Sel Push Button * @param Button_Mode: Specifies Button mode. * This parameter can be one of following parameters: * @arg Mode_GPIO: Button will be used as simple IO * @arg Mode_EXTI: Button will be connected to EXTI line with interrupt * generation capability * @retval None */ void STM_EVAL_PBInit(Button_TypeDef Button, Button_Mode_TypeDef Button_Mode) { GPIO_InitTypeDef GPIO_InitStructure; EXTI_InitTypeDef EXTI_InitStructure; NVIC_InitTypeDef NVIC_InitStructure; /* Enable Button GPIO clock */ RCC_APB2PeriphClockCmd(BUTTON_CLK[Button] | RCC_APB2Periph_AFIO, ENABLE); /* Configure Button pin as input floating */ GPIO_InitStructure.GPIO_Pin = BUTTON_PIN[Button]; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStructure); if (Button_Mode == Mode_EXTI) { /* Connect Button EXTI Line to Button GPIO Pin */ GPIO_EXTILineConfig(BUTTON_PORT_SOURCE[Button], BUTTON_PIN_SOURCE[Button]); /* Configure Button EXTI line */ EXTI_InitStructure.EXTI_Line = BUTTON_EXTI_LINE[Button]; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; if(Button != Button_WAKEUP) { EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; } else { EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising; } EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); /* Enable and set Button EXTI Interrupt to the lowest priority */ NVIC_InitStructure.NVIC_IRQChannel = BUTTON_IRQn[Button]; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); } } /** * @brief Returns the selected Button state. * @param Button: Specifies the Button to be checked. * This parameter can be one of following parameters: * @arg Button_WAKEUP: Wakeup Push Button * @arg Button_TAMPER: Tamper Push Button * @arg Button_KEY: Key Push Button * @arg Button_RIGHT: Joystick Right Push Button * @arg Button_LEFT: Joystick Left Push Button * @arg Button_UP: Joystick Up Push Button * @arg Button_DOWN: Joystick Down Push Button * @arg Button_SEL: Joystick Sel Push Button * @retval The Button GPIO pin value. */ uint32_t STM_EVAL_PBGetState(Button_TypeDef Button) { return GPIO_ReadInputDataBit(BUTTON_PORT[Button], BUTTON_PIN[Button]); } /** * @brief Configures COM port. * @param COM: Specifies the COM port to be configured. * This parameter can be one of following parameters: * @arg COM1 * @arg COM2 * @param USART_InitStruct: pointer to a USART_InitTypeDef structure that * contains the configuration information for the specified USART peripheral. * @retval None */ void STM_EVAL_COMInit(COM_TypeDef COM, USART_InitTypeDef* USART_InitStruct) { GPIO_InitTypeDef GPIO_InitStructure; /* Enable GPIO clock */ RCC_APB2PeriphClockCmd(COM_POR_CLK[COM] | RCC_APB2Periph_AFIO, ENABLE); /* Enable UART clock */ #if defined (USE_STM3210E_EVAL) if (COM == COM1) { RCC_APB2PeriphClockCmd(COM_USART_CLK[COM], ENABLE); } else { RCC_APB1PeriphClockCmd(COM_USART_CLK[COM], ENABLE); } #elif defined (USE_STM3210B_EVAL) if (COM == COM1) { RCC_APB2PeriphClockCmd(COM_USART_CLK[COM], ENABLE); } else { /* Enable the USART2 Pins Software Remapping */ GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE); RCC_APB1PeriphClockCmd(COM_USART_CLK[COM], ENABLE); } #elif defined (USE_STM3210C_EVAL) if (COM == COM1) { /* Enable the USART2 Pins Software Remapping */ GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE); RCC_APB1PeriphClockCmd(COM_USART_CLK[COM], ENABLE); } #endif /* Configure USART Tx as alternate function push-pull */ GPIO_InitStructure.GPIO_Pin = COM_TX_PIN[COM]; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(COM_PORT[COM], &GPIO_InitStructure); /* Configure USART Rx as input floating */ GPIO_InitStructure.GPIO_Pin = COM_RX_PIN[COM]; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; GPIO_Init(COM_PORT[COM], &GPIO_InitStructure); /* USART configuration */ USART_Init(COM_USART[COM], USART_InitStruct); /* Enable USART */ USART_Cmd(COM_USART[COM], ENABLE); } /** * @} */ /** * @} */ /** * @} */ /******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/