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342 lines
10 KiB
342 lines
10 KiB
/*
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/ _____) _ | |
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( (____ _____ ____ _| |_ _____ ____| |__
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\____ \| ___ | (_ _) ___ |/ ___) _ \
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_____) ) ____| | | || |_| ____( (___| | | |
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(______/|_____)_|_|_| \__)_____)\____)_| |_|
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(C)2013 Semtech
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Description: Target board general functions implementation
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License: Revised BSD License, see LICENSE.TXT file include in the project
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Maintainer: Miguel Luis and Gregory Cristian
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*/
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/*******************************************************************************
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* @file stm32l0xx_hw.c
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* @author MCD Application Team
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* @version V1.1.2
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* @date 08-September-2017
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* @brief system hardware driver
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2017 STMicroelectronics International N.V.
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* All rights reserved.</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted, provided that the following conditions are met:
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*
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* 1. Redistribution of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of other
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* contributors to this software may be used to endorse or promote products
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* derived from this software without specific written permission.
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* 4. This software, including modifications and/or derivative works of this
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* software, must execute solely and exclusively on microcontroller or
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* microprocessor devices manufactured by or for STMicroelectronics.
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* 5. Redistribution and use of this software other than as permitted under
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* this license is void and will automatically terminate your rights under
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* this license.
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*
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* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
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* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
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* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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#include <hw_i2c.h>
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#include "hw.h"
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#include "radio.h"
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#include "debug.h"
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#include "vcom.h"
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/*!
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* \brief Unique Devices IDs register set ( STM32L0xxx )
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*/
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#define ID1 ( 0x1FF80050 )
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#define ID2 ( 0x1FF80054 )
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#define ID3 ( 0x1FF80064 )
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/*!
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* \brief ADC Vbat measurement constants
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*/
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/* Internal voltage reference, parameter VREFINT_CAL*/
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#define VREFINT_CAL ((uint16_t*) ((uint32_t) 0x1FF80078))
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#define LORAWAN_MAX_BAT 254
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/* Internal temperature sensor: constants data used for indicative values in */
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/* this example. Refer to device datasheet for min/typ/max values. */
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/* Internal temperature sensor, parameter TS_CAL1: TS ADC raw data acquired at
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*a temperature of 110 DegC (+-5 DegC), VDDA = 3.3 V (+-10 mV). */
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#define TEMP30_CAL_ADDR ((uint16_t*) ((uint32_t) 0x1FF8007A))
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/* Internal temperature sensor, parameter TS_CAL2: TS ADC raw data acquired at
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*a temperature of 30 DegC (+-5 DegC), VDDA = 3.3 V (+-10 mV). */
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#define TEMP110_CAL_ADDR ((uint16_t*) ((uint32_t) 0x1FF8007E))
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/* Vdda value with which temperature sensor has been calibrated in production
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(+-10 mV). */
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#define VDDA_TEMP_CAL ((uint32_t) 3000)
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/*!
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* Flag to indicate if the MCU is Initialized
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*/
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static bool McuInitialized = false;
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/**
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* @brief This function initializes the hardware
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* @param None
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* @retval None
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*/
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void HW_Init( void )
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{
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if( McuInitialized == false )
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{
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#if defined( USE_BOOTLOADER )
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/* Set the Vector Table base location at 0x3000 */
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NVIC_SetVectorTable( NVIC_VectTab_FLASH, 0x3000 );
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#endif
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// HW_AdcInit( );
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Radio.IoInit( );
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HW_SPI_Init( );
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HW_RTC_Init( );
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HW_I2C_Init();
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vcom_Init( );
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McuInitialized = true;
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}
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}
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/**
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* @brief This function Deinitializes the hardware
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* @param None
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* @retval None
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*/
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void HW_DeInit( void )
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{
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HW_SPI_DeInit( );
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Radio.IoDeInit( );
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HW_I2C_DeInit();
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vcom_DeInit( );
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McuInitialized = false;
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}
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/**
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* @brief This function Initializes the hardware Ios
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* @param None
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* @retval None
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*/
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static void HW_IoInit( void )
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{
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HW_SPI_IoInit( );
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HAL_I2C_MspInit(&hi2c1);
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Radio.IoInit( );
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vcom_IoInit( );
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}
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/**
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* @brief This function Deinitializes the hardware Ios
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* @param None
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* @retval None
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*/
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static void HW_IoDeInit( void )
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{
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HW_SPI_IoDeInit( );
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HAL_I2C_MspDeInit(&hi2c1);
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Radio.IoDeInit( );
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vcom_IoDeInit( );
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}
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void HW_GpioInit(void)
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{
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/* STM32L0 Gpios are all already configured in analog input at nReset*/
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}
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/**
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* @brief System Clock Configuration
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* The system Clock is configured as follow :
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* System Clock source = PLL (HSI)
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* SYSCLK(Hz) = 32000000
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* HCLK(Hz) = 32000000
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* AHB Prescaler = 1
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* APB1 Prescaler = 1
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* APB2 Prescaler = 1
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* HSI Frequency(Hz) = 16000000
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* PLLMUL = 6
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* PLLDIV = 3
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* Flash Latency(WS) = 1
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* @retval None
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*/
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void SystemClock_Config( void )
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{
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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/* Enable HSE Oscillator and Activate PLL with HSE as source */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
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RCC_OscInitStruct.HSEState = RCC_HSE_OFF;
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RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
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RCC_OscInitStruct.PLL.PLLMUL = RCC_PLLMUL_6;
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RCC_OscInitStruct.PLL.PLLDIV = RCC_PLLDIV_3;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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Error_Handler();
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}
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/* Set Voltage scale1 as MCU will run at 32MHz */
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__HAL_RCC_PWR_CLK_ENABLE();
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
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/* Poll VOSF bit of in PWR_CSR. Wait until it is reset to 0 */
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while (__HAL_PWR_GET_FLAG(PWR_FLAG_VOS) != RESET) {};
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/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
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clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
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{
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Error_Handler();
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}
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}
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/**
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* @brief This function return a random seed
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* @note based on the device unique ID
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* @param None
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* @retval see
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*/
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uint32_t HW_GetRandomSeed( void )
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{
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return ( ( *( uint32_t* )ID1 ) ^ ( *( uint32_t* )ID2 ) ^ ( *( uint32_t* )ID3 ) );
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}
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/**
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* @brief This function return a unique ID
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* @param unique ID
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* @retval none
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*/
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void HW_GetUniqueId( uint8_t *id )
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{
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id[7] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 24;
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id[6] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 16;
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id[5] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 8;
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id[4] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) );
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id[3] = ( ( *( uint32_t* )ID2 ) ) >> 24;
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id[2] = ( ( *( uint32_t* )ID2 ) ) >> 16;
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id[1] = ( ( *( uint32_t* )ID2 ) ) >> 8;
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id[0] = ( ( *( uint32_t* )ID2 ) );
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}
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/**
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* @brief Enters Low Power Stop Mode
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* @note ARM exists the function when waking up
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* @param none
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* @retval none
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*/
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void HW_EnterStopMode( void)
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{
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BACKUP_PRIMASK();
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DISABLE_IRQ( );
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HW_IoDeInit( );
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/*clear wake up flag*/
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SET_BIT(PWR->CR, PWR_CR_CWUF);
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RESTORE_PRIMASK( );
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/* Enter Stop Mode */
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HAL_PWR_EnterSTOPMode ( PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI );
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}
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/**
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* @brief Exists Low Power Stop Mode
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* @note Enable the pll at 32MHz
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* @param none
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* @retval none
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*/
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void HW_ExitStopMode( void)
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{
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/* Disable IRQ while the MCU is not running on HSI */
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BACKUP_PRIMASK();
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DISABLE_IRQ( );
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/* After wake-up from STOP reconfigure the system clock */
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/* Enable HSI */
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__HAL_RCC_HSI_ENABLE();
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/* Wait till HSI is ready */
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while( __HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET ) {}
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/* Enable PLL */
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__HAL_RCC_PLL_ENABLE();
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/* Wait till PLL is ready */
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while( __HAL_RCC_GET_FLAG( RCC_FLAG_PLLRDY ) == RESET ) {}
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/* Select PLL as system clock source */
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__HAL_RCC_SYSCLK_CONFIG ( RCC_SYSCLKSOURCE_PLLCLK );
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/* Wait till PLL is used as system clock source */
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while( __HAL_RCC_GET_SYSCLK_SOURCE( ) != RCC_SYSCLKSOURCE_STATUS_PLLCLK ) {}
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/*initilizes the peripherals*/
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HW_IoInit( );
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RESTORE_PRIMASK( );
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}
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/**
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* @brief Enters Low Power Sleep Mode
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* @note ARM exits the function when waking up
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* @param none
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* @retval none
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*/
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void HW_EnterSleepMode( void)
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{
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HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
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}
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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