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Mysteo
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/************************************************************************************//**
* \file Demo/ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE/Prog/App/app.c
* \brief User program application source file.
* \ingroup Prog_ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2020 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 "header.h" /* generic header */
/************************************************************************************//**
** \brief Initializes the user program application. Should be called once during
** software program initialization.
** \return none.
**
****************************************************************************************/
void AppInit(void)
{
/* Initialize the timer driver. */
TimerInit();
/* Initialize the led driver. */
LedInit();
/* initialize the bootloader interface */
BootComInit();
} /*** end of AppInit ***/
/************************************************************************************//**
** \brief Task function of the user program application. Should be called
** continuously in the program loop.
** \return none.
**
****************************************************************************************/
void AppTask(void)
{
/* Toggle LED with a fixed frequency. */
LedToggle();
/* check for bootloader activation request */
BootComCheckActivationRequest();
} /*** end of AppTask ***/
/*********************************** end of app.c **************************************/

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/************************************************************************************//**
* \file Demo/ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE/Prog/App/app.h
* \brief User program application header file.
* \ingroup Prog_ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2020 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
****************************************************************************************/
#ifndef APP_H
#define APP_H
/****************************************************************************************
* Function prototypes
****************************************************************************************/
void AppInit(void);
void AppTask(void);
#endif /* APP_H */
/*********************************** end of app.h **************************************/

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/************************************************************************************//**
* \file Demo/ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE/Prog/App/boot.c
* \brief Demo program bootloader interface source file.
* \ingroup Prog_ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2020 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 "header.h" /* generic header */
/****************************************************************************************
* Function prototypes
****************************************************************************************/
#if (BOOT_COM_RS232_ENABLE > 0)
static void BootComRs232Init(void);
static void BootComRs232CheckActivationRequest(void);
#endif
/************************************************************************************//**
** \brief Initializes the communication interface.
** \return none.
**
****************************************************************************************/
void BootComInit(void)
{
#if (BOOT_COM_RS232_ENABLE > 0)
BootComRs232Init();
#endif
} /*** end of BootComInit ***/
/************************************************************************************//**
** \brief Receives the CONNECT request from the host, which indicates that the
** bootloader should be activated and, if so, activates it.
** \return none.
**
****************************************************************************************/
void BootComCheckActivationRequest(void)
{
#if (BOOT_COM_RS232_ENABLE > 0)
BootComRs232CheckActivationRequest();
#endif
} /*** end of BootComCheckActivationRequest ***/
/************************************************************************************//**
** \brief Bootloader activation function.
** \return none.
**
****************************************************************************************/
void BootActivate(void)
{
/* perform software reset to activate the bootoader again */
NVIC_SystemReset();
} /*** end of BootActivate ***/
#if (BOOT_COM_RS232_ENABLE > 0)
/****************************************************************************************
* U N I V E R S A L A S Y N C H R O N O U S R X T X I N T E R F A C E
****************************************************************************************/
/****************************************************************************************
* Macro definitions
****************************************************************************************/
/** \brief Timeout time for the reception of a CTO packet. The timer is started upon
* reception of the first packet byte.
*/
#define RS232_CTO_RX_PACKET_TIMEOUT_MS (100u)
/****************************************************************************************
* Local data declarations
****************************************************************************************/
/** \brief UART handle to be used in API calls. */
static UART_HandleTypeDef rs232Handle;
/****************************************************************************************
* Function prototypes
****************************************************************************************/
static unsigned char Rs232ReceiveByte(unsigned char *data);
/************************************************************************************//**
** \brief Initializes the UART communication interface.
** \return none.
**
****************************************************************************************/
static void BootComRs232Init(void)
{
/* Configure UART peripheral. */
rs232Handle.Instance = USART2;
rs232Handle.Init.BaudRate = BOOT_COM_RS232_BAUDRATE;
rs232Handle.Init.WordLength = UART_WORDLENGTH_8B;
rs232Handle.Init.StopBits = UART_STOPBITS_1;
rs232Handle.Init.Parity = UART_PARITY_NONE;
rs232Handle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
rs232Handle.Init.Mode = UART_MODE_TX_RX;
rs232Handle.Init.OverSampling = UART_OVERSAMPLING_16;
rs232Handle.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_ENABLE;
rs232Handle.Init.ClockPrescaler = UART_PRESCALER_DIV1;
/* Initialize the UART peripheral. */
HAL_UART_Init(&rs232Handle);
} /*** end of BootComRs232Init ***/
/************************************************************************************//**
** \brief Receives the CONNECT request from the host, which indicates that the
** bootloader should be activated and, if so, activates it.
** \return none.
**
****************************************************************************************/
static void BootComRs232CheckActivationRequest(void)
{
static unsigned char xcpCtoReqPacket[BOOT_COM_RS232_RX_MAX_DATA+1];
static unsigned char xcpCtoRxLength;
static unsigned char xcpCtoRxInProgress = 0;
static unsigned long xcpCtoRxStartTime = 0;
/* start of cto packet received? */
if (xcpCtoRxInProgress == 0)
{
/* store the message length when received */
if (Rs232ReceiveByte(&xcpCtoReqPacket[0]) == 1)
{
/* check that the length has a valid value. it should not be 0 */
if ( (xcpCtoReqPacket[0] > 0) &&
(xcpCtoReqPacket[0] <= BOOT_COM_RS232_RX_MAX_DATA) )
{
/* store the start time */
xcpCtoRxStartTime = TimerGet();
/* indicate that a cto packet is being received */
xcpCtoRxInProgress = 1;
/* reset packet data count */
xcpCtoRxLength = 0;
}
}
}
else
{
/* store the next packet byte */
if (Rs232ReceiveByte(&xcpCtoReqPacket[xcpCtoRxLength+1]) == 1)
{
/* increment the packet data count */
xcpCtoRxLength++;
/* check to see if the entire packet was received */
if (xcpCtoRxLength == xcpCtoReqPacket[0])
{
/* done with cto packet reception */
xcpCtoRxInProgress = 0;
/* check if this was an XCP CONNECT command */
if ((xcpCtoReqPacket[1] == 0xff) && (xcpCtoRxLength == 2))
{
/* connection request received so start the bootloader */
BootActivate();
}
}
}
else
{
/* check packet reception timeout */
if (TimerGet() > (xcpCtoRxStartTime + RS232_CTO_RX_PACKET_TIMEOUT_MS))
{
/* cancel cto packet reception due to timeout. note that this automatically
* discards the already received packet bytes, allowing the host to retry.
*/
xcpCtoRxInProgress = 0;
}
}
}
} /*** end of BootComRs232CheckActivationRequest ***/
/************************************************************************************//**
** \brief Receives a communication interface byte if one is present.
** \param data Pointer to byte where the data is to be stored.
** \return 1 if a byte was received, 0 otherwise.
**
****************************************************************************************/
static unsigned char Rs232ReceiveByte(unsigned char *data)
{
HAL_StatusTypeDef result;
/* receive a byte in a non-blocking manner */
result = HAL_UART_Receive(&rs232Handle, data, 1, 0);
/* process the result */
if (result == HAL_OK)
{
/* success */
return 1;
}
/* error occurred */
return 0;
} /*** end of Rs232ReceiveByte ***/
#endif /* BOOT_COM_RS232_ENABLE > 0 */
/*********************************** end of boot.c *************************************/

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/************************************************************************************//**
* \file Demo/ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE/Prog/App/boot.h
* \brief Demo program bootloader interface header file.
* \ingroup Prog_ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2020 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
****************************************************************************************/
#ifndef BOOT_H
#define BOOT_H
/****************************************************************************************
* Function prototypes
****************************************************************************************/
void BootComInit(void);
void BootComCheckActivationRequest(void);
void BootActivate(void);
#endif /* BOOT_H */
/*********************************** end of boot.h *************************************/

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/************************************************************************************//**
* \file Demo/ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE/Prog/App/header.h
* \brief Generic header file.
* \ingroup Prog_ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2020 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
****************************************************************************************/
#ifndef HEADER_H
#define HEADER_H
/****************************************************************************************
* Include files
****************************************************************************************/
#include "../../Boot/App/blt_conf.h" /* bootloader configuration */
#include "stm32g0xx.h" /* STM32 CPU and HAL header */
#include "app.h" /* Application header */
#include "boot.h" /* bootloader interface driver */
#include "led.h" /* LED driver */
#include "timer.h" /* Timer driver */
#endif /* HEADER_H */
/*********************************** end of header.h ***********************************/

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/************************************************************************************//**
* \file Demo/ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE/Prog/App/led.c
* \brief LED driver source file.
* \ingroup Prog_ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2020 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 "header.h" /* generic header */
/****************************************************************************************
* Macro definitions
****************************************************************************************/
/** \brief Toggle interval time in milliseconds. */
#define LED_TOGGLE_MS (500)
/************************************************************************************//**
** \brief Initializes the LED.
** \return none.
**
****************************************************************************************/
void LedInit(void)
{
/* Note that the initialization of the LED GPIO pin is done in HAL_MspInit(). All that
* is left to do here is to make sure the LED is turned off after initialization.
*/
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);
} /*** end of LedInit ***/
/************************************************************************************//**
** \brief Toggles the LED at a fixed time interval.
** \return none.
**
****************************************************************************************/
void LedToggle(void)
{
static unsigned char led_toggle_state = 0;
static unsigned long timer_counter_last = 0;
unsigned long timer_counter_now;
/* check if toggle interval time passed */
timer_counter_now = TimerGet();
if ( (timer_counter_now - timer_counter_last) < LED_TOGGLE_MS)
{
/* not yet time to toggle */
return;
}
/* determine toggle action */
if (led_toggle_state == 0)
{
led_toggle_state = 1;
/* turn the LED on */
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);
}
else
{
led_toggle_state = 0;
/* turn the LED off */
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);
}
/* store toggle time to determine next toggle interval */
timer_counter_last = timer_counter_now;
} /*** end of LedToggle ***/
/*********************************** end of led.c **************************************/

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/************************************************************************************//**
* \file Demo/ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE/Prog/App/led.h
* \brief LED driver header file.
* \ingroup Prog_ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2020 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
****************************************************************************************/
#ifndef LED_H
#define LED_H
/****************************************************************************************
* Function prototypes
****************************************************************************************/
void LedInit(void);
void LedToggle(void);
#endif /* LED_H */
/*********************************** end of led.h **************************************/

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/************************************************************************************//**
* \file Demo/ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE/Prog/App/timer.c
* \brief Timer driver source file.
* \ingroup Prog_ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2020 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 "header.h" /* generic header */
/************************************************************************************//**
** \brief Initializes the timer.
** \return none.
**
****************************************************************************************/
void TimerInit(void)
{
/* The HAL initialization already configured the Systick interrupt to generate an
* interrupt every 1 millisecond. Nothing more needs to be done here.
*/
} /*** end of TimerInit ***/
/************************************************************************************//**
** \brief Obtains the counter value of the millisecond timer.
** \return Current value of the millisecond timer.
**
****************************************************************************************/
unsigned long TimerGet(void)
{
/* Read and return the tick counter value. */
return HAL_GetTick();
} /*** end of TimerGet ***/
/*********************************** end of timer.c ************************************/

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/************************************************************************************//**
* \file Demo/ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE/Prog/App/timer.h
* \brief Timer driver header file.
* \ingroup Prog_ARMCM0_STM32G0_Nucleo_G071RB_CubeIDE
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2020 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
****************************************************************************************/
#ifndef TIMER_H
#define TIMER_H
/****************************************************************************************
* Function prototypes
****************************************************************************************/
void TimerInit(void);
unsigned long TimerGet(void);
#endif /* TIMER_H */
/*********************************** end of timer.h ************************************/