110 lines
4.7 KiB
C
110 lines
4.7 KiB
C
/************************************************************************************//**
|
|
* \file Demo\ARMCM4_TM4C_DK_TM4C123G_IAR\Boot\main.c
|
|
* \brief Bootloader application source file.
|
|
* \ingroup Boot_ARMCM4_TM4C_DK_TM4C123G_IAR
|
|
* \internal
|
|
*----------------------------------------------------------------------------------------
|
|
* C O P Y R I G H T
|
|
*----------------------------------------------------------------------------------------
|
|
* Copyright (c) 2014 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 should have received a copy of the GNU General Public License along with OpenBLT.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* A special exception to the GPL is included to allow you to distribute a combined work
|
|
* that includes OpenBLT without being obliged to provide the source code for any
|
|
* proprietary components. The exception text is included at the bottom of the license
|
|
* file <license.html>.
|
|
*
|
|
* \endinternal
|
|
****************************************************************************************/
|
|
|
|
/****************************************************************************************
|
|
* Include files
|
|
****************************************************************************************/
|
|
#include "boot.h" /* bootloader generic header */
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
#include "inc/hw_ints.h"
|
|
#include "inc/hw_memmap.h"
|
|
#include "inc/hw_nvic.h"
|
|
#include "inc/hw_sysctl.h"
|
|
#include "inc/hw_types.h"
|
|
#include "driverlib/sysctl.h"
|
|
#include "driverlib/gpio.h"
|
|
#if (BOOT_FILE_LOGGING_ENABLE > 0)
|
|
#include "driverlib/uartlib.h"
|
|
#endif
|
|
|
|
/****************************************************************************************
|
|
* Function prototypes
|
|
****************************************************************************************/
|
|
static void Init(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 none.
|
|
**
|
|
****************************************************************************************/
|
|
void main(void)
|
|
{
|
|
/* initialize the microcontroller */
|
|
Init();
|
|
/* initialize the bootloader */
|
|
BootInit();
|
|
|
|
/* start the infinite program loop */
|
|
while (1)
|
|
{
|
|
/* run the bootloader task */
|
|
BootTask();
|
|
}
|
|
} /*** end of main ***/
|
|
|
|
|
|
/************************************************************************************//**
|
|
** \brief Initializes the microcontroller.
|
|
** \return none.
|
|
**
|
|
****************************************************************************************/
|
|
static void Init(void)
|
|
{
|
|
/* set the clocking to run at 50MHz from the PLL */
|
|
SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_XTAL_16MHZ | SYSCTL_OSC_MAIN);
|
|
#if (BOOT_COM_UART_ENABLE > 0)
|
|
#if (BOOT_COM_UART_CHANNEL_INDEX == 0)
|
|
/* enable and configure UART0 related peripherals and pins */
|
|
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
|
|
GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
|
|
#endif
|
|
#elif (BOOT_FILE_LOGGING_ENABLE > 0)
|
|
/* log info strings to UART during firmware updates from local file storage */
|
|
/* enable and configure UART0 related peripherals and pins */
|
|
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
|
|
GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
|
|
/* enable the UART0 peripheral */
|
|
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
|
|
/* configure the UART0 baudrate and communication parameters */
|
|
UARTConfigSetExpClk(UART0_BASE, SysCtlClockGet(), 57600,
|
|
(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |
|
|
UART_CONFIG_PAR_NONE));
|
|
#endif
|
|
} /*** end of Init ***/
|
|
|
|
|
|
/*********************************** end of main.c *************************************/
|