mirror of https://github.com/rusefi/wideband.git
208 lines
7.5 KiB
C
208 lines
7.5 KiB
C
/****************************************************************************************
|
|
* Include files
|
|
****************************************************************************************/
|
|
#include "boot.h" /* bootloader generic header */
|
|
#include "stm32f1xx.h" /* STM32 registers and drivers */
|
|
#include "stm32f1xx_ll_rcc.h" /* STM32 LL RCC header */
|
|
#include "stm32f1xx_ll_bus.h" /* STM32 LL BUS header */
|
|
#include "stm32f1xx_ll_system.h" /* STM32 LL SYSTEM header */
|
|
#include "stm32f1xx_ll_utils.h" /* STM32 LL UTILS header */
|
|
#include "stm32f1xx_ll_usart.h" /* STM32 LL USART header */
|
|
#include "stm32f1xx_ll_gpio.h" /* STM32 LL GPIO header */
|
|
|
|
#include "io_pins.h"
|
|
|
|
/****************************************************************************************
|
|
* 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 return 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_2);
|
|
if (LL_FLASH_GetLatency() != LL_FLASH_LATENCY_2)
|
|
{
|
|
/* Error setting flash latency. */
|
|
ASSERT_RT(BLT_FALSE);
|
|
}
|
|
|
|
/* Enable the HSE clock. */
|
|
LL_RCC_HSE_Enable();
|
|
/* Wait till HSE is ready. */
|
|
while (LL_RCC_HSE_IsReady() != 1)
|
|
{
|
|
;
|
|
}
|
|
|
|
/* Configure and enable the PLL. */
|
|
/* 48MHz max */
|
|
LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE_DIV_2, LL_RCC_PLL_MUL_12);
|
|
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_2);
|
|
LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
|
|
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;
|
|
|
|
/* AFIO and PWR clock enable. */
|
|
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_AFIO);
|
|
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
|
|
|
|
/* GPIO ports clock enable. */
|
|
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
|
|
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOB);
|
|
|
|
#if (BOOT_COM_RS232_ENABLE > 0)
|
|
/* UART clock enable. */
|
|
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_USART1);
|
|
/* UART TX and RX GPIO pin configuration. */
|
|
GPIO_InitStruct.Pin = LL_UART_TX_PIN;
|
|
GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
|
|
GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
|
|
GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
|
|
LL_GPIO_Init(UART_GPIO_PORT, &GPIO_InitStruct);
|
|
GPIO_InitStruct.Pin = LL_UART_RX_PIN;
|
|
GPIO_InitStruct.Mode = LL_GPIO_MODE_FLOATING;
|
|
GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
|
|
LL_GPIO_Init(UART_GPIO_PORT, &GPIO_InitStruct);
|
|
#endif
|
|
|
|
#if (BOOT_COM_CAN_ENABLE > 0)
|
|
/* CAN clock enable. */
|
|
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_CAN1);
|
|
/* CAN TX and RX GPIO pin configuration. */
|
|
GPIO_InitStruct.Pin = LL_CAN_TX_PIN;
|
|
GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
|
|
LL_GPIO_Init(CAN_GPIO_PORT, &GPIO_InitStruct);
|
|
GPIO_InitStruct.Pin = LL_CAN_RX_PIN;
|
|
GPIO_InitStruct.Mode = LL_GPIO_MODE_INPUT;
|
|
GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
|
|
LL_GPIO_Init(CAN_GPIO_PORT, &GPIO_InitStruct);
|
|
#endif
|
|
|
|
#if (BOOT_CPU_USER_PROGRAM_START_HOOK > 0)
|
|
/* Configure GPIO pin for (optional) backdoor entry input. */
|
|
GPIO_InitStruct.Pin = LL_GPIO_PIN_13;
|
|
GPIO_InitStruct.Mode = LL_GPIO_MODE_FLOATING;
|
|
LL_GPIO_Init(GPIOC, &GPIO_InitStruct);
|
|
#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();
|
|
|
|
/* Deinit used GPIOs. */
|
|
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)
|
|
/* UART clock disable. */
|
|
LL_APB2_GRP1_DisableClock(LL_APB2_GRP1_PERIPH_USART1);
|
|
#endif
|
|
|
|
/* GPIO ports clock disable. */
|
|
LL_APB2_GRP1_DisableClock(LL_APB2_GRP1_PERIPH_GPIOB);
|
|
LL_APB2_GRP1_DisableClock(LL_APB2_GRP1_PERIPH_GPIOA);
|
|
|
|
/* AFIO and PWR clock disable. */
|
|
LL_APB1_GRP1_DisableClock(LL_APB1_GRP1_PERIPH_PWR);
|
|
LL_APB2_GRP1_DisableClock(LL_APB2_GRP1_PERIPH_AFIO);
|
|
} /*** end of HAL_MspDeInit ***/
|
|
|
|
|
|
/*********************************** end of main.c *************************************/
|