The nRF24L01+ wireless dongle firmware
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gex-nrf-dongle/Src/gpio.c

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/**
******************************************************************************
* File Name : gpio.c
* Description : This file provides code for the configuration
* of all used GPIO pins.
******************************************************************************
* This notice applies to any and all portions of this file
* that are not between comment pairs USER CODE BEGIN and
* USER CODE END. Other portions of this file, whether
* inserted by the user or by software development tools
* are owned by their respective copyright owners.
*
* Copyright (c) 2018 STMicroelectronics International N.V.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted, provided that the following conditions are met:
*
* 1. Redistribution of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of other
* contributors to this software may be used to endorse or promote products
* derived from this software without specific written permission.
* 4. This software, including modifications and/or derivative works of this
* software, must execute solely and exclusively on microcontroller or
* microprocessor devices manufactured by or for STMicroelectronics.
* 5. Redistribution and use of this software other than as permitted under
* this license is void and will automatically terminate your rights under
* this license.
*
* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "gpio.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/*----------------------------------------------------------------------------*/
/* Configure GPIO */
/*----------------------------------------------------------------------------*/
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
void MX_GPIO_Init(void)
{
LL_EXTI_InitTypeDef EXTI_InitStruct;
LL_GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOC);
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOD);
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
/**/
LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED1_Pin);
LL_GPIO_ResetOutputPin(LED_GPIO_Port, LEDRX_Pin);
LL_GPIO_ResetOutputPin(LED_GPIO_Port, LEDTX_Pin);
LL_GPIO_SetOutputPin(RENUM_GPIO_Port, RENUM_Pin);
/**/
// LL_GPIO_ResetOutputPin(GPIOA, NRF_CE_Pin|NRF_NSS_Pin);
/**/
GPIO_InitStruct.Pin = LED1_Pin|LEDRX_Pin|LEDTX_Pin;
GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
LL_GPIO_Init(LED_GPIO_Port, &GPIO_InitStruct);
/**/
GPIO_InitStruct.Pin = NRF_CE_Pin|NRF_NSS_Pin|RENUM_Pin;
GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
#if 1
/**/
LL_GPIO_AF_SetEXTISource(LL_GPIO_AF_EXTI_PORTA, LL_GPIO_AF_EXTI_LINE1); // IRQ on PA1
/**/
EXTI_InitStruct.Line_0_31 = LL_EXTI_LINE_1;
EXTI_InitStruct.LineCommand = ENABLE;
EXTI_InitStruct.Mode = LL_EXTI_MODE_IT;
EXTI_InitStruct.Trigger = LL_EXTI_TRIGGER_FALLING;
LL_EXTI_Init(&EXTI_InitStruct);
NVIC_EnableIRQ(EXTI2_IRQn);
/**/
LL_GPIO_SetPinMode(NRF_IRQ_GPIO_Port, NRF_IRQ_Pin, LL_GPIO_MODE_FLOATING);
#endif
}
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/