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openblt/Target/Demo/ARMCM4_STM32F4_Olimex_STM32.../Boot/main.c

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/************************************************************************************//**
* \file Demo/ARMCM4_STM32F4_Olimex_STM32P405_TrueStudio/Boot/main.c
* \brief Bootloader application source file.
* \ingroup Boot_ARMCM4_STM32F4_Olimex_STM32P405_TrueStudio
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2017 by Feaser http://www.feaser.com All rights reserved
*
*----------------------------------------------------------------------------------------
* L I C E N S E
*----------------------------------------------------------------------------------------
* This file is part of OpenBLT. OpenBLT is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* OpenBLT is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You have received a copy of the GNU General Public License along with OpenBLT. It
* should be located in ".\Doc\license.html". If not, contact Feaser to obtain a copy.
*
* \endinternal
****************************************************************************************/
/****************************************************************************************
* Include files
****************************************************************************************/
#include "boot.h" /* bootloader generic header */
#include "stm32f4xx.h" /* STM32 registers and drivers */
#include "stm32f4xx_ll_rcc.h" /* STM32 LL RCC header */
#include "stm32f4xx_ll_pwr.h" /* STM32 LL PWR header */
#include "stm32f4xx_ll_bus.h" /* STM32 LL BUS header */
#include "stm32f4xx_ll_system.h" /* STM32 LL SYSTEM header */
#include "stm32f4xx_ll_utils.h" /* STM32 LL UTILS header */
#include "stm32f4xx_ll_usart.h" /* STM32 LL USART header */
#include "stm32f4xx_ll_gpio.h" /* STM32 LL GPIO header */
/****************************************************************************************
* Function prototypes
****************************************************************************************/
static void Init(void);
static void SystemClock_Config(void);
/************************************************************************************//**
** \brief This is the entry point for the bootloader application and is called
** by the reset interrupt vector after the C-startup routines executed.
** \return Program exit code.
**
****************************************************************************************/
int main(void)
{
/* initialize the microcontroller */
Init();
/* initialize the bootloader */
BootInit();
/* start the infinite program loop */
while (1)
{
/* run the bootloader task */
BootTask();
}
/* program should never get here */
return 0;
} /*** end of main ***/
/************************************************************************************//**
** \brief Initializes the microcontroller.
** \return none.
**
****************************************************************************************/
static void Init(void)
{
/* HAL library initialization */
HAL_Init();
/* configure system clock */
SystemClock_Config();
} /*** end of Init ***/
/************************************************************************************//**
** \brief System Clock Configuration. This code was created by CubeMX and configures
** the system clock to match the configuration in the bootloader's
** configuration (blt_conf.h), specifically the macros:
** BOOT_CPU_SYSTEM_SPEED_KHZ and BOOT_CPU_XTAL_SPEED_KHZ.
** Note that the Lower Layer drivers were selected in CubeMX for the RCC
** subsystem.
** \return none.
**
****************************************************************************************/
static void SystemClock_Config(void)
{
/* Set flash latency. */
LL_FLASH_SetLatency(LL_FLASH_LATENCY_5);
/* Verify flash latency setting. */
if(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_5)
{
/* Error setting flash latency. */
ASSERT_RT(BLT_FALSE);
}
/* Configure voltage regulator scaling. */
LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE1);
/* Enable the HSE clock. */
LL_RCC_HSE_Enable();
/* Wait till HSE is ready */
while(LL_RCC_HSE_IsReady() != 1)
{
;
}
/* Configure and enable the PLL. */
LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLM_DIV_8, 336, LL_RCC_PLLP_DIV_2);
LL_RCC_PLL_ConfigDomain_48M(LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLM_DIV_8, 336, LL_RCC_PLLQ_DIV_7);
LL_RCC_PLL_Enable();
/* Wait till PLL is ready */
while(LL_RCC_PLL_IsReady() != 1)
{
;
}
LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_4);
LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_2);
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
/* Wait till System clock is ready */
while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
{
;
}
/* Update the system clock speed setting. */
LL_SetSystemCoreClock(BOOT_CPU_SYSTEM_SPEED_KHZ * 1000u);
} /*** end of SystemClock_Config ***/
/************************************************************************************//**
** \brief Initializes the Global MSP. This function is called from HAL_Init()
** function to perform system level initialization (GPIOs, clock, DMA,
** interrupt).
** \return none.
**
****************************************************************************************/
void HAL_MspInit(void)
{
LL_GPIO_InitTypeDef GPIO_InitStruct;
#if (BOOT_FILE_LOGGING_ENABLE > 0) && (BOOT_COM_RS232_ENABLE == 0)
LL_USART_InitTypeDef USART_InitStruct;
#endif
/* SYSCFG and PWR clock enable. */
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SYSCFG);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
/* GPIO ports clock enable. */
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOA);
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOB);
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOC);
#if (BOOT_COM_RS232_ENABLE > 0) || (BOOT_FILE_LOGGING_ENABLE > 0)
/* UART clock enable. */
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_USART2);
#endif
#if (BOOT_COM_CAN_ENABLE > 0)
/* CAN clock enable. */
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_CAN1);
#endif
/* Configure GPIO pin for the LED. */
GPIO_InitStruct.Pin = LL_GPIO_PIN_12;
GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
LL_GPIO_Init(GPIOC, &GPIO_InitStruct);
LL_GPIO_SetOutputPin(GPIOC, LL_GPIO_PIN_12);
/* Configure GPIO pin for (optional) backdoor entry input. */
GPIO_InitStruct.Pin = LL_GPIO_PIN_0;
GPIO_InitStruct.Mode = LL_GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
#if (BOOT_COM_RS232_ENABLE > 0) || (BOOT_FILE_LOGGING_ENABLE > 0)
/* UART TX and RX GPIO pin configuration. */
GPIO_InitStruct.Pin = LL_GPIO_PIN_2 | LL_GPIO_PIN_3;
GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
GPIO_InitStruct.Alternate = LL_GPIO_AF_7;
LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
#if (BOOT_FILE_LOGGING_ENABLE > 0) && (BOOT_COM_RS232_ENABLE == 0)
/* configure UART peripheral */
USART_InitStruct.BaudRate = BOOT_COM_RS232_BAUDRATE;
USART_InitStruct.DataWidth = LL_USART_DATAWIDTH_8B;
USART_InitStruct.StopBits = LL_USART_STOPBITS_1;
USART_InitStruct.Parity = LL_USART_PARITY_NONE;
USART_InitStruct.TransferDirection = LL_USART_DIRECTION_TX_RX;
USART_InitStruct.HardwareFlowControl = LL_USART_HWCONTROL_NONE;
USART_InitStruct.OverSampling = LL_USART_OVERSAMPLING_16;
/* initialize the UART peripheral */
LL_USART_Init(USART2, &USART_InitStruct);
LL_USART_ConfigAsyncMode(USART2);
LL_USART_Enable(USART2);
#endif
#endif
#if (BOOT_COM_CAN_ENABLE > 0)
/* CAN TX and RX GPIO pin configuration. */
GPIO_InitStruct.Pin = LL_GPIO_PIN_8 | LL_GPIO_PIN_9;
GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
GPIO_InitStruct.Alternate = LL_GPIO_AF_9;
LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
#endif
#if (BOOT_COM_USB_ENABLE > 0)
/* USB pin configuration. */
GPIO_InitStruct.Pin = LL_GPIO_PIN_11 | LL_GPIO_PIN_12;
GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
GPIO_InitStruct.Alternate = LL_GPIO_AF_10;
LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
#endif
#if (BOOT_COM_USB_ENABLE > 0)
/* USB clock enable. */
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_OTGFS);
#endif
} /*** end of HAL_MspInit ***/
/************************************************************************************//**
** \brief DeInitializes the Global MSP. This function is called from HAL_DeInit()
** function to perform system level de-initialization (GPIOs, clock, DMA,
** interrupt).
** \return none.
**
****************************************************************************************/
void HAL_MspDeInit(void)
{
/* Reset the RCC clock configuration to the default reset state. */
LL_RCC_DeInit();
#if (BOOT_COM_USB_ENABLE > 0)
/* USB clock disable. */
LL_AHB2_GRP1_DisableClock(LL_AHB2_GRP1_PERIPH_OTGFS);
#endif
/* Deinit used GPIOs. */
LL_GPIO_DeInit(GPIOC);
LL_GPIO_DeInit(GPIOB);
LL_GPIO_DeInit(GPIOA);
#if (BOOT_COM_CAN_ENABLE > 0)
/* CAN clock disable. */
LL_APB1_GRP1_DisableClock(LL_APB1_GRP1_PERIPH_CAN1);
#endif
#if (BOOT_COM_RS232_ENABLE > 0) || (BOOT_FILE_LOGGING_ENABLE > 0)
#if (BOOT_FILE_LOGGING_ENABLE > 0) && (BOOT_COM_RS232_ENABLE == 0)
/* Disable UART peripheral */
LL_USART_Disable(USART2);
#endif
/* UART clock disable. */
LL_APB1_GRP1_DisableClock(LL_APB1_GRP1_PERIPH_USART2);
#endif
/* GPIO ports clock disable. */
LL_AHB1_GRP1_DisableClock(LL_AHB1_GRP1_PERIPH_GPIOC);
LL_AHB1_GRP1_DisableClock(LL_AHB1_GRP1_PERIPH_GPIOB);
LL_AHB1_GRP1_DisableClock(LL_AHB1_GRP1_PERIPH_GPIOA);
/* SYSCFG and PWR clock disable. */
LL_APB1_GRP1_DisableClock(LL_APB1_GRP1_PERIPH_PWR);
LL_APB2_GRP1_DisableClock(LL_APB2_GRP1_PERIPH_SYSCFG);
} /*** end of HAL_MspDeInit ***/
/*********************************** end of main.c *************************************/
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