Mbed OS and Pelion Device Management example over WIFI for DISCO_L475VG_IOT01 board

Dependencies:   X_NUCLEO_COMMON ST_INTERFACES

DEPRECATED

This example application is not maintained and not recommended. It uses an old version of Mbed OS, Pelion DM and Arm toolchain. It doesn't work with Mbed Studio.

Please use: https://os.mbed.com/teams/mbed-os-examples/code/mbed-os-example-pelion/

This example is known to work on the following platforms:

DISCO_L475E_IOT01A

Follow the Quick-Start instructions: https://cloud.mbed.com/quick-start

Example functionality

This example showcases the following device functionality:

  • Read onboard temperature and humidity sensors, and report them as Pelion LWM2M resources (see image below).
  • On user button click, increment Pelion LWM2M button resource.
  • Allow the user to change the state of the board LED from Pelion LWM2M led_state resource and PUT request.
  • Uses all onboard sensors and reports them as Pelion LWM2M resources.

/media/uploads/screamer/pelion_st_humidity_reading.png?v=2

Use this example with Mbed CLI

1. Import the application into your desktop:

mbed import https://os.mbed.com/teams/ST/code/pelion-example-disco-iot01

cd pelion-example-disco-iot01

2. Install the CLOUD_SDK_API_KEY

mbed config -G CLOUD_SDK_API_KEY <PELION_DM_API_KEY>

For instructions on how to generate your API key, please see the documentation.

3. Initialize firmware credentials (done once per repository). You can use the following command:

mbed dm init -d "<your company name in Pelion DM>" --model-name "<product model identifier>" -q --force

If above command do not work for your Mbed CLI, please consider upgrading Mbed CLI to version 1.8.x or above.

4. Compile and program:

mbed compile -t <toolchain> -m DISCO_L475VG_IOT01A

(supported toolchains : GCC_ARM / ARM / IAR)

5. You can connect on a virtual terminal/COM port to the platform using:

mbed sterm -b 115200

This should give you an output similar to:

[BOOT] Mbed Bootloader
[BOOT] ARM: 00000000000000000000
[BOOT] OEM: 00000000000000000000
[BOOT] Layout: 0 80096F4
[BOOT] Active firmware integrity check:
[BOOT] SHA256: 0660E360D432225D5251461998FD8617B017098C5F1F90D5FB607BF8C27ED530
[BOOT] Version: 1553615309
[BOOT] Slot 0 is empty
[BOOT] Active firmware up-to-date
[BOOT] Application's start address: 0x8010400
[BOOT] Application's jump address: 0x8011041
[BOOT] Application's stack address: 0x20018000
[BOOT] Forwarding to application...

Starting Simple Pelion Device Management Client example
You can hold the user button during boot to format the storage and change the device identity.

Sensors configuration:
Invalid new address!
HTS221  humidity & temperature    = 0xBC
LPS22HB pressure & temperature    = 0xB1
LIS3MDL magnetometer              = 0x3D
LSM6DSL accelerometer & gyroscope = 0x6A

Connecting to the network using Wifi...
Connected to the network successfully. IP address: 192.168.1.3
Initializing Pelion Device Management Client...
Initialized Pelion Client. Registering...
Registered to Pelion Device Management. Endpoint Name: 0169********************001002d5

ADC temp:     23.0037 C,  vref:      0.3661 V
HTS221 temp:   28.700 C,  humidity:   31.90 %
LPS22HB temp:  29.600 C,  pressure: 1032.01 mbar
LIS3MDL mag:    0.217 x,  -0.284 y,  -0.053 z [gauss]
LSM6DSL acc:    0.005 x,  -0.014 y,   1.029 z [g]
LSM6DSL gyro:   0.910 x,  -0.910 y,   1.120 z [dps]
VL53L0X dist:    1855 mm
Revision:
31:da14aa77f977
Parent:
30:15743b79c6cb
--- a/targets/TARGET_STM32L475xG_SRAM2/device/TOOLCHAIN_GCC_ARM/startup_stm32l475xx.S	Sat Mar 09 00:46:54 2019 +0000
+++ b/targets/TARGET_STM32L475xG_SRAM2/device/TOOLCHAIN_GCC_ARM/startup_stm32l475xx.S	Mon Mar 11 11:28:07 2019 +0000
@@ -1,510 +1,510 @@
-/**
-  ******************************************************************************
-  * @file      startup_stm32l475xx.s
-  * @author    MCD Application Team
-  * @version   V1.2.0
-  * @date      28-October-2016
-  * @brief     STM32L475xx devices vector table for GCC toolchain.
-  *            This module performs:
-  *                - Set the initial SP
-  *                - Set the initial PC == Reset_Handler,
-  *                - Set the vector table entries with the exceptions ISR address,
-  *                - Configure the clock system  
-  *                - Branches to main in the C library (which eventually
-  *                  calls main()).
-  *            After Reset the Cortex-M4 processor is in Thread mode,
-  *            priority is Privileged, and the Stack is set to Main.
-  ******************************************************************************
-  * @attention
-  *
-  * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
-  *
-  * Redistribution and use in source and binary forms, with or without modification,
-  * are permitted provided that the following conditions are met:
-  *   1. Redistributions of source code must retain the above copyright notice,
-  *      this list of conditions and the following disclaimer.
-  *   2. Redistributions in binary form must reproduce the above copyright notice,
-  *      this list of conditions and the following disclaimer in the documentation
-  *      and/or other materials provided with the distribution.
-  *   3. Neither the name of STMicroelectronics nor the names of its contributors
-  *      may be used to endorse or promote products derived from this software
-  *      without specific prior written permission.
-  *
-  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-  *
-  ******************************************************************************
-  */
-
-  .syntax unified
-	.cpu cortex-m4
-	.fpu softvfp
-	.thumb
-
-.global	g_pfnVectors
-.global	Default_Handler
-
-/* start address for the initialization values of the .data section.
-defined in linker script */
-.word	_sidata
-/* start address for the .data section. defined in linker script */
-.word	_sdata
-/* end address for the .data section. defined in linker script */
-.word	_edata
-
-.equ  BootRAM,        0xF1E0F85F
-/**
- * @brief  This is the code that gets called when the processor first
- *          starts execution following a reset event. Only the absolutely
- *          necessary set is performed, after which the application
- *          supplied main() routine is called.
- * @param  None
- * @retval : None
-*/
-
-    .section	.text.Reset_Handler
-	.weak	Reset_Handler
-	.type	Reset_Handler, %function
-Reset_Handler:
-  ldr   sp, =_estack    /* Atollic update: set stack pointer */
-
-/* Copy the data segment initializers from flash to SRAM */
-  movs	r1, #0
-  b	LoopCopyDataInit
-
-CopyDataInit:
-	ldr	r3, =_sidata
-	ldr	r3, [r3, r1]
-	str	r3, [r0, r1]
-	adds	r1, r1, #4
-
-LoopCopyDataInit:
-	ldr	r0, =_sdata
-	ldr	r3, =_edata
-	adds	r2, r0, r1
-	cmp	r2, r3
-	bcc	CopyDataInit
-
-/* Call the clock system intitialization function.*/
-    bl  SystemInit
-/* Call static constructors */
-  //bl __libc_init_array
-/* Call the application's entry point.*/
-  //bl  main
-  // Calling the crt0 'cold-start' entry point. There __libc_init_array is called
-  // and when existing hardware_init_hook() and software_init_hook() before 
-  // starting main(). software_init_hook() is available and has to be called due 
-  // to initializsation when using rtos.
-  bl _start
-  bx  lr    
-.size  Reset_Handler, .-Reset_Handler
-
-/**
- * @brief  This is the code that gets called when the processor receives an
- *         unexpected interrupt.  This simply enters an infinite loop, preserving
- *         the system state for examination by a debugger.
- *
- * @param  None
- * @retval : None
-*/
-    .section	.text.Default_Handler,"ax",%progbits
-Default_Handler:
-Infinite_Loop:
-	b	Infinite_Loop
-	.size	Default_Handler, .-Default_Handler
-/******************************************************************************
-*
-* The minimal vector table for a Cortex-M4.  Note that the proper constructs
-* must be placed on this to ensure that it ends up at physical address
-* 0x0000.0000.
-*
-******************************************************************************/
- 	.section	.isr_vector,"a",%progbits
-	.type	g_pfnVectors, %object
-	.size	g_pfnVectors, .-g_pfnVectors
-
-
-g_pfnVectors:
-	.word	_estack
-	.word	Reset_Handler
-	.word	NMI_Handler
-	.word	HardFault_Handler
-	.word	MemManage_Handler
-	.word	BusFault_Handler
-	.word	UsageFault_Handler
-	.word	0
-	.word	0
-	.word	0
-	.word	0
-	.word	SVC_Handler
-	.word	DebugMon_Handler
-	.word	0
-	.word	PendSV_Handler
-	.word	SysTick_Handler
-	.word	WWDG_IRQHandler
-	.word	PVD_PVM_IRQHandler
-	.word	TAMP_STAMP_IRQHandler
-	.word	RTC_WKUP_IRQHandler
-	.word	FLASH_IRQHandler
-	.word	RCC_IRQHandler
-	.word	EXTI0_IRQHandler
-	.word	EXTI1_IRQHandler
-	.word	EXTI2_IRQHandler
-	.word	EXTI3_IRQHandler
-	.word	EXTI4_IRQHandler
-	.word	DMA1_Channel1_IRQHandler
-	.word	DMA1_Channel2_IRQHandler
-	.word	DMA1_Channel3_IRQHandler
-	.word	DMA1_Channel4_IRQHandler
-	.word	DMA1_Channel5_IRQHandler
-	.word	DMA1_Channel6_IRQHandler
-	.word	DMA1_Channel7_IRQHandler
-	.word	ADC1_2_IRQHandler
-	.word	CAN1_TX_IRQHandler
-	.word	CAN1_RX0_IRQHandler
-	.word	CAN1_RX1_IRQHandler
-	.word	CAN1_SCE_IRQHandler
-	.word	EXTI9_5_IRQHandler
-	.word	TIM1_BRK_TIM15_IRQHandler
-	.word	TIM1_UP_TIM16_IRQHandler
-	.word	TIM1_TRG_COM_TIM17_IRQHandler
-	.word	TIM1_CC_IRQHandler
-	.word	TIM2_IRQHandler
-	.word	TIM3_IRQHandler
-	.word	TIM4_IRQHandler
-	.word	I2C1_EV_IRQHandler
-	.word	I2C1_ER_IRQHandler
-	.word	I2C2_EV_IRQHandler
-	.word	I2C2_ER_IRQHandler
-	.word	SPI1_IRQHandler
-	.word	SPI2_IRQHandler
-	.word	USART1_IRQHandler
-	.word	USART2_IRQHandler
-	.word	USART3_IRQHandler
-	.word	EXTI15_10_IRQHandler
-	.word	RTC_Alarm_IRQHandler
-	.word	DFSDM1_FLT3_IRQHandler
-	.word	TIM8_BRK_IRQHandler
-	.word	TIM8_UP_IRQHandler
-	.word	TIM8_TRG_COM_IRQHandler
-	.word	TIM8_CC_IRQHandler
-	.word	ADC3_IRQHandler
-	.word	FMC_IRQHandler
-	.word	SDMMC1_IRQHandler
-	.word	TIM5_IRQHandler
-	.word	SPI3_IRQHandler
-	.word	UART4_IRQHandler
-	.word	UART5_IRQHandler
-	.word	TIM6_DAC_IRQHandler
-	.word	TIM7_IRQHandler
-	.word	DMA2_Channel1_IRQHandler
-	.word	DMA2_Channel2_IRQHandler
-	.word	DMA2_Channel3_IRQHandler
-	.word	DMA2_Channel4_IRQHandler
-	.word	DMA2_Channel5_IRQHandler
-	.word	DFSDM1_FLT0_IRQHandler
-	.word	DFSDM1_FLT1_IRQHandler
-	.word	DFSDM1_FLT2_IRQHandler
-	.word	COMP_IRQHandler
-	.word	LPTIM1_IRQHandler
-	.word	LPTIM2_IRQHandler
-	.word	OTG_FS_IRQHandler
-	.word	DMA2_Channel6_IRQHandler
-	.word	DMA2_Channel7_IRQHandler
-	.word	LPUART1_IRQHandler
-	.word	QUADSPI_IRQHandler
-	.word	I2C3_EV_IRQHandler
-	.word	I2C3_ER_IRQHandler
-	.word	SAI1_IRQHandler
-	.word	SAI2_IRQHandler
-	.word	SWPMI1_IRQHandler
-	.word	TSC_IRQHandler
-	.word 0
-	.word 0
-	.word	RNG_IRQHandler
-	.word	FPU_IRQHandler
-
-
-/*******************************************************************************
-*
-* Provide weak aliases for each Exception handler to the Default_Handler.
-* As they are weak aliases, any function with the same name will override
-* this definition.
-*
-*******************************************************************************/
-
-  .weak	NMI_Handler
-	.thumb_set NMI_Handler,Default_Handler
-
-  .weak	HardFault_Handler
-	.thumb_set HardFault_Handler,Default_Handler
-
-  .weak	MemManage_Handler
-	.thumb_set MemManage_Handler,Default_Handler
-
-  .weak	BusFault_Handler
-	.thumb_set BusFault_Handler,Default_Handler
-
-	.weak	UsageFault_Handler
-	.thumb_set UsageFault_Handler,Default_Handler
-
-	.weak	SVC_Handler
-	.thumb_set SVC_Handler,Default_Handler
-
-	.weak	DebugMon_Handler
-	.thumb_set DebugMon_Handler,Default_Handler
-
-	.weak	PendSV_Handler
-	.thumb_set PendSV_Handler,Default_Handler
-
-	.weak	SysTick_Handler
-	.thumb_set SysTick_Handler,Default_Handler
-
-	.weak	WWDG_IRQHandler
-	.thumb_set WWDG_IRQHandler,Default_Handler
-
-	.weak	PVD_PVM_IRQHandler
-	.thumb_set PVD_PVM_IRQHandler,Default_Handler
-
-	.weak	TAMP_STAMP_IRQHandler
-	.thumb_set TAMP_STAMP_IRQHandler,Default_Handler
-
-	.weak	RTC_WKUP_IRQHandler
-	.thumb_set RTC_WKUP_IRQHandler,Default_Handler
-
-	.weak	FLASH_IRQHandler
-	.thumb_set FLASH_IRQHandler,Default_Handler
-
-	.weak	RCC_IRQHandler
-	.thumb_set RCC_IRQHandler,Default_Handler
-
-	.weak	EXTI0_IRQHandler
-	.thumb_set EXTI0_IRQHandler,Default_Handler
-
-	.weak	EXTI1_IRQHandler
-	.thumb_set EXTI1_IRQHandler,Default_Handler
-
-	.weak	EXTI2_IRQHandler
-	.thumb_set EXTI2_IRQHandler,Default_Handler
-
-	.weak	EXTI3_IRQHandler
-	.thumb_set EXTI3_IRQHandler,Default_Handler
-
-	.weak	EXTI4_IRQHandler
-	.thumb_set EXTI4_IRQHandler,Default_Handler
-
-	.weak	DMA1_Channel1_IRQHandler
-	.thumb_set DMA1_Channel1_IRQHandler,Default_Handler
-
-	.weak	DMA1_Channel2_IRQHandler
-	.thumb_set DMA1_Channel2_IRQHandler,Default_Handler
-
-	.weak	DMA1_Channel3_IRQHandler
-	.thumb_set DMA1_Channel3_IRQHandler,Default_Handler
-
-	.weak	DMA1_Channel4_IRQHandler
-	.thumb_set DMA1_Channel4_IRQHandler,Default_Handler
-
-	.weak	DMA1_Channel5_IRQHandler
-	.thumb_set DMA1_Channel5_IRQHandler,Default_Handler
-
-	.weak	DMA1_Channel6_IRQHandler
-	.thumb_set DMA1_Channel6_IRQHandler,Default_Handler
-
-	.weak	DMA1_Channel7_IRQHandler
-	.thumb_set DMA1_Channel7_IRQHandler,Default_Handler
-
-	.weak	ADC1_2_IRQHandler
-	.thumb_set ADC1_2_IRQHandler,Default_Handler
-
-	.weak	CAN1_TX_IRQHandler
-	.thumb_set CAN1_TX_IRQHandler,Default_Handler
-
-	.weak	CAN1_RX0_IRQHandler
-	.thumb_set CAN1_RX0_IRQHandler,Default_Handler
-
-	.weak	CAN1_RX1_IRQHandler
-	.thumb_set CAN1_RX1_IRQHandler,Default_Handler
-
-	.weak	CAN1_SCE_IRQHandler
-	.thumb_set CAN1_SCE_IRQHandler,Default_Handler
-
-	.weak	EXTI9_5_IRQHandler
-	.thumb_set EXTI9_5_IRQHandler,Default_Handler
-
-	.weak	TIM1_BRK_TIM15_IRQHandler
-	.thumb_set TIM1_BRK_TIM15_IRQHandler,Default_Handler
-
-	.weak	TIM1_UP_TIM16_IRQHandler
-	.thumb_set TIM1_UP_TIM16_IRQHandler,Default_Handler
-
-	.weak	TIM1_TRG_COM_TIM17_IRQHandler
-	.thumb_set TIM1_TRG_COM_TIM17_IRQHandler,Default_Handler
-
-	.weak	TIM1_CC_IRQHandler
-	.thumb_set TIM1_CC_IRQHandler,Default_Handler
-
-	.weak	TIM2_IRQHandler
-	.thumb_set TIM2_IRQHandler,Default_Handler
-
-	.weak	TIM3_IRQHandler
-	.thumb_set TIM3_IRQHandler,Default_Handler
-
-	.weak	TIM4_IRQHandler
-	.thumb_set TIM4_IRQHandler,Default_Handler
-
-	.weak	I2C1_EV_IRQHandler
-	.thumb_set I2C1_EV_IRQHandler,Default_Handler
-
-	.weak	I2C1_ER_IRQHandler
-	.thumb_set I2C1_ER_IRQHandler,Default_Handler
-
-	.weak	I2C2_EV_IRQHandler
-	.thumb_set I2C2_EV_IRQHandler,Default_Handler
-
-	.weak	I2C2_ER_IRQHandler
-	.thumb_set I2C2_ER_IRQHandler,Default_Handler
-
-	.weak	SPI1_IRQHandler
-	.thumb_set SPI1_IRQHandler,Default_Handler
-
-	.weak	SPI2_IRQHandler
-	.thumb_set SPI2_IRQHandler,Default_Handler
-
-	.weak	USART1_IRQHandler
-	.thumb_set USART1_IRQHandler,Default_Handler
-
-	.weak	USART2_IRQHandler
-	.thumb_set USART2_IRQHandler,Default_Handler
-
-	.weak	USART3_IRQHandler
-	.thumb_set USART3_IRQHandler,Default_Handler
-
-	.weak	EXTI15_10_IRQHandler
-	.thumb_set EXTI15_10_IRQHandler,Default_Handler
-
-	.weak	RTC_Alarm_IRQHandler
-	.thumb_set RTC_Alarm_IRQHandler,Default_Handler
-
-	.weak	DFSDM1_FLT3_IRQHandler
-	.thumb_set DFSDM1_FLT3_IRQHandler,Default_Handler
-
-	.weak	TIM8_BRK_IRQHandler
-	.thumb_set TIM8_BRK_IRQHandler,Default_Handler
-
-	.weak	TIM8_UP_IRQHandler
-	.thumb_set TIM8_UP_IRQHandler,Default_Handler
-
-	.weak	TIM8_TRG_COM_IRQHandler
-	.thumb_set TIM8_TRG_COM_IRQHandler,Default_Handler
-
-	.weak	TIM8_CC_IRQHandler
-	.thumb_set TIM8_CC_IRQHandler,Default_Handler
-
-	.weak	ADC3_IRQHandler
-	.thumb_set ADC3_IRQHandler,Default_Handler
-
-	.weak	FMC_IRQHandler
-	.thumb_set FMC_IRQHandler,Default_Handler
-
-	.weak	SDMMC1_IRQHandler
-	.thumb_set SDMMC1_IRQHandler,Default_Handler
-
-	.weak	TIM5_IRQHandler
-	.thumb_set TIM5_IRQHandler,Default_Handler
-
-	.weak	SPI3_IRQHandler
-	.thumb_set SPI3_IRQHandler,Default_Handler
-
-	.weak	UART4_IRQHandler
-	.thumb_set UART4_IRQHandler,Default_Handler
-
-	.weak	UART5_IRQHandler
-	.thumb_set UART5_IRQHandler,Default_Handler
-
-	.weak	TIM6_DAC_IRQHandler
-	.thumb_set TIM6_DAC_IRQHandler,Default_Handler
-
-	.weak	TIM7_IRQHandler
-	.thumb_set TIM7_IRQHandler,Default_Handler
-
-	.weak	DMA2_Channel1_IRQHandler
-	.thumb_set DMA2_Channel1_IRQHandler,Default_Handler
-
-	.weak	DMA2_Channel2_IRQHandler
-	.thumb_set DMA2_Channel2_IRQHandler,Default_Handler
-
-	.weak	DMA2_Channel3_IRQHandler
-	.thumb_set DMA2_Channel3_IRQHandler,Default_Handler
-
-	.weak	DMA2_Channel4_IRQHandler
-	.thumb_set DMA2_Channel4_IRQHandler,Default_Handler
-
-	.weak	DMA2_Channel5_IRQHandler
-	.thumb_set DMA2_Channel5_IRQHandler,Default_Handler
-
-	.weak	DFSDM1_FLT0_IRQHandler
-	.thumb_set DFSDM1_FLT0_IRQHandler,Default_Handler	
-	
-	.weak	DFSDM1_FLT1_IRQHandler
-	.thumb_set DFSDM1_FLT1_IRQHandler,Default_Handler	
-	
-	.weak	DFSDM1_FLT2_IRQHandler
-	.thumb_set DFSDM1_FLT2_IRQHandler,Default_Handler	
-	
-	.weak	COMP_IRQHandler
-	.thumb_set COMP_IRQHandler,Default_Handler
-	
-	.weak	LPTIM1_IRQHandler
-	.thumb_set LPTIM1_IRQHandler,Default_Handler
-	
-	.weak	LPTIM2_IRQHandler
-	.thumb_set LPTIM2_IRQHandler,Default_Handler	
-	
-	.weak	OTG_FS_IRQHandler
-	.thumb_set OTG_FS_IRQHandler,Default_Handler	
-	
-	.weak	DMA2_Channel6_IRQHandler
-	.thumb_set DMA2_Channel6_IRQHandler,Default_Handler	
-	
-	.weak	DMA2_Channel7_IRQHandler
-	.thumb_set DMA2_Channel7_IRQHandler,Default_Handler	
-	
-	.weak	LPUART1_IRQHandler
-	.thumb_set LPUART1_IRQHandler,Default_Handler	
-	
-	.weak	QUADSPI_IRQHandler
-	.thumb_set QUADSPI_IRQHandler,Default_Handler	
-	
-	.weak	I2C3_EV_IRQHandler
-	.thumb_set I2C3_EV_IRQHandler,Default_Handler	
-	
-	.weak	I2C3_ER_IRQHandler
-	.thumb_set I2C3_ER_IRQHandler,Default_Handler	
-	
-	.weak	SAI1_IRQHandler
-	.thumb_set SAI1_IRQHandler,Default_Handler
-	
-	.weak	SAI2_IRQHandler
-	.thumb_set SAI2_IRQHandler,Default_Handler
-	
-	.weak	SWPMI1_IRQHandler
-	.thumb_set SWPMI1_IRQHandler,Default_Handler
-	
-	.weak	TSC_IRQHandler
-	.thumb_set TSC_IRQHandler,Default_Handler
-	
-	.weak	RNG_IRQHandler
-	.thumb_set RNG_IRQHandler,Default_Handler
-	
-	.weak	FPU_IRQHandler
-	.thumb_set FPU_IRQHandler,Default_Handler
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+/**
+  ******************************************************************************
+  * @file      startup_stm32l475xx.s
+  * @author    MCD Application Team
+  * @version   V1.2.0
+  * @date      28-October-2016
+  * @brief     STM32L475xx devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address,
+  *                - Configure the clock system  
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M4 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+	.cpu cortex-m4
+	.fpu softvfp
+	.thumb
+
+.global	g_pfnVectors
+.global	Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word	_sidata
+/* start address for the .data section. defined in linker script */
+.word	_sdata
+/* end address for the .data section. defined in linker script */
+.word	_edata
+
+.equ  BootRAM,        0xF1E0F85F
+/**
+ * @brief  This is the code that gets called when the processor first
+ *          starts execution following a reset event. Only the absolutely
+ *          necessary set is performed, after which the application
+ *          supplied main() routine is called.
+ * @param  None
+ * @retval : None
+*/
+
+    .section	.text.Reset_Handler
+	.weak	Reset_Handler
+	.type	Reset_Handler, %function
+Reset_Handler:
+  ldr   sp, =_estack    /* Atollic update: set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  movs	r1, #0
+  b	LoopCopyDataInit
+
+CopyDataInit:
+	ldr	r3, =_sidata
+	ldr	r3, [r3, r1]
+	str	r3, [r0, r1]
+	adds	r1, r1, #4
+
+LoopCopyDataInit:
+	ldr	r0, =_sdata
+	ldr	r3, =_edata
+	adds	r2, r0, r1
+	cmp	r2, r3
+	bcc	CopyDataInit
+
+/* Call the clock system intitialization function.*/
+    bl  SystemInit
+/* Call static constructors */
+  //bl __libc_init_array
+/* Call the application's entry point.*/
+  //bl  main
+  // Calling the crt0 'cold-start' entry point. There __libc_init_array is called
+  // and when existing hardware_init_hook() and software_init_hook() before 
+  // starting main(). software_init_hook() is available and has to be called due 
+  // to initializsation when using rtos.
+  bl _start
+  bx  lr    
+.size  Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section	.text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+	b	Infinite_Loop
+	.size	Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex-M4.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+ 	.section	.isr_vector,"a",%progbits
+	.type	g_pfnVectors, %object
+	.size	g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+	.word	_estack
+	.word	Reset_Handler
+	.word	NMI_Handler
+	.word	HardFault_Handler
+	.word	MemManage_Handler
+	.word	BusFault_Handler
+	.word	UsageFault_Handler
+	.word	0
+	.word	0
+	.word	0
+	.word	0
+	.word	SVC_Handler
+	.word	DebugMon_Handler
+	.word	0
+	.word	PendSV_Handler
+	.word	SysTick_Handler
+	.word	WWDG_IRQHandler
+	.word	PVD_PVM_IRQHandler
+	.word	TAMP_STAMP_IRQHandler
+	.word	RTC_WKUP_IRQHandler
+	.word	FLASH_IRQHandler
+	.word	RCC_IRQHandler
+	.word	EXTI0_IRQHandler
+	.word	EXTI1_IRQHandler
+	.word	EXTI2_IRQHandler
+	.word	EXTI3_IRQHandler
+	.word	EXTI4_IRQHandler
+	.word	DMA1_Channel1_IRQHandler
+	.word	DMA1_Channel2_IRQHandler
+	.word	DMA1_Channel3_IRQHandler
+	.word	DMA1_Channel4_IRQHandler
+	.word	DMA1_Channel5_IRQHandler
+	.word	DMA1_Channel6_IRQHandler
+	.word	DMA1_Channel7_IRQHandler
+	.word	ADC1_2_IRQHandler
+	.word	CAN1_TX_IRQHandler
+	.word	CAN1_RX0_IRQHandler
+	.word	CAN1_RX1_IRQHandler
+	.word	CAN1_SCE_IRQHandler
+	.word	EXTI9_5_IRQHandler
+	.word	TIM1_BRK_TIM15_IRQHandler
+	.word	TIM1_UP_TIM16_IRQHandler
+	.word	TIM1_TRG_COM_TIM17_IRQHandler
+	.word	TIM1_CC_IRQHandler
+	.word	TIM2_IRQHandler
+	.word	TIM3_IRQHandler
+	.word	TIM4_IRQHandler
+	.word	I2C1_EV_IRQHandler
+	.word	I2C1_ER_IRQHandler
+	.word	I2C2_EV_IRQHandler
+	.word	I2C2_ER_IRQHandler
+	.word	SPI1_IRQHandler
+	.word	SPI2_IRQHandler
+	.word	USART1_IRQHandler
+	.word	USART2_IRQHandler
+	.word	USART3_IRQHandler
+	.word	EXTI15_10_IRQHandler
+	.word	RTC_Alarm_IRQHandler
+	.word	DFSDM1_FLT3_IRQHandler
+	.word	TIM8_BRK_IRQHandler
+	.word	TIM8_UP_IRQHandler
+	.word	TIM8_TRG_COM_IRQHandler
+	.word	TIM8_CC_IRQHandler
+	.word	ADC3_IRQHandler
+	.word	FMC_IRQHandler
+	.word	SDMMC1_IRQHandler
+	.word	TIM5_IRQHandler
+	.word	SPI3_IRQHandler
+	.word	UART4_IRQHandler
+	.word	UART5_IRQHandler
+	.word	TIM6_DAC_IRQHandler
+	.word	TIM7_IRQHandler
+	.word	DMA2_Channel1_IRQHandler
+	.word	DMA2_Channel2_IRQHandler
+	.word	DMA2_Channel3_IRQHandler
+	.word	DMA2_Channel4_IRQHandler
+	.word	DMA2_Channel5_IRQHandler
+	.word	DFSDM1_FLT0_IRQHandler
+	.word	DFSDM1_FLT1_IRQHandler
+	.word	DFSDM1_FLT2_IRQHandler
+	.word	COMP_IRQHandler
+	.word	LPTIM1_IRQHandler
+	.word	LPTIM2_IRQHandler
+	.word	OTG_FS_IRQHandler
+	.word	DMA2_Channel6_IRQHandler
+	.word	DMA2_Channel7_IRQHandler
+	.word	LPUART1_IRQHandler
+	.word	QUADSPI_IRQHandler
+	.word	I2C3_EV_IRQHandler
+	.word	I2C3_ER_IRQHandler
+	.word	SAI1_IRQHandler
+	.word	SAI2_IRQHandler
+	.word	SWPMI1_IRQHandler
+	.word	TSC_IRQHandler
+	.word 0
+	.word 0
+	.word	RNG_IRQHandler
+	.word	FPU_IRQHandler
+
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak	NMI_Handler
+	.thumb_set NMI_Handler,Default_Handler
+
+  .weak	HardFault_Handler
+	.thumb_set HardFault_Handler,Default_Handler
+
+  .weak	MemManage_Handler
+	.thumb_set MemManage_Handler,Default_Handler
+
+  .weak	BusFault_Handler
+	.thumb_set BusFault_Handler,Default_Handler
+
+	.weak	UsageFault_Handler
+	.thumb_set UsageFault_Handler,Default_Handler
+
+	.weak	SVC_Handler
+	.thumb_set SVC_Handler,Default_Handler
+
+	.weak	DebugMon_Handler
+	.thumb_set DebugMon_Handler,Default_Handler
+
+	.weak	PendSV_Handler
+	.thumb_set PendSV_Handler,Default_Handler
+
+	.weak	SysTick_Handler
+	.thumb_set SysTick_Handler,Default_Handler
+
+	.weak	WWDG_IRQHandler
+	.thumb_set WWDG_IRQHandler,Default_Handler
+
+	.weak	PVD_PVM_IRQHandler
+	.thumb_set PVD_PVM_IRQHandler,Default_Handler
+
+	.weak	TAMP_STAMP_IRQHandler
+	.thumb_set TAMP_STAMP_IRQHandler,Default_Handler
+
+	.weak	RTC_WKUP_IRQHandler
+	.thumb_set RTC_WKUP_IRQHandler,Default_Handler
+
+	.weak	FLASH_IRQHandler
+	.thumb_set FLASH_IRQHandler,Default_Handler
+
+	.weak	RCC_IRQHandler
+	.thumb_set RCC_IRQHandler,Default_Handler
+
+	.weak	EXTI0_IRQHandler
+	.thumb_set EXTI0_IRQHandler,Default_Handler
+
+	.weak	EXTI1_IRQHandler
+	.thumb_set EXTI1_IRQHandler,Default_Handler
+
+	.weak	EXTI2_IRQHandler
+	.thumb_set EXTI2_IRQHandler,Default_Handler
+
+	.weak	EXTI3_IRQHandler
+	.thumb_set EXTI3_IRQHandler,Default_Handler
+
+	.weak	EXTI4_IRQHandler
+	.thumb_set EXTI4_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel1_IRQHandler
+	.thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel2_IRQHandler
+	.thumb_set DMA1_Channel2_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel3_IRQHandler
+	.thumb_set DMA1_Channel3_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel4_IRQHandler
+	.thumb_set DMA1_Channel4_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel5_IRQHandler
+	.thumb_set DMA1_Channel5_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel6_IRQHandler
+	.thumb_set DMA1_Channel6_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel7_IRQHandler
+	.thumb_set DMA1_Channel7_IRQHandler,Default_Handler
+
+	.weak	ADC1_2_IRQHandler
+	.thumb_set ADC1_2_IRQHandler,Default_Handler
+
+	.weak	CAN1_TX_IRQHandler
+	.thumb_set CAN1_TX_IRQHandler,Default_Handler
+
+	.weak	CAN1_RX0_IRQHandler
+	.thumb_set CAN1_RX0_IRQHandler,Default_Handler
+
+	.weak	CAN1_RX1_IRQHandler
+	.thumb_set CAN1_RX1_IRQHandler,Default_Handler
+
+	.weak	CAN1_SCE_IRQHandler
+	.thumb_set CAN1_SCE_IRQHandler,Default_Handler
+
+	.weak	EXTI9_5_IRQHandler
+	.thumb_set EXTI9_5_IRQHandler,Default_Handler
+
+	.weak	TIM1_BRK_TIM15_IRQHandler
+	.thumb_set TIM1_BRK_TIM15_IRQHandler,Default_Handler
+
+	.weak	TIM1_UP_TIM16_IRQHandler
+	.thumb_set TIM1_UP_TIM16_IRQHandler,Default_Handler
+
+	.weak	TIM1_TRG_COM_TIM17_IRQHandler
+	.thumb_set TIM1_TRG_COM_TIM17_IRQHandler,Default_Handler
+
+	.weak	TIM1_CC_IRQHandler
+	.thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+	.weak	TIM2_IRQHandler
+	.thumb_set TIM2_IRQHandler,Default_Handler
+
+	.weak	TIM3_IRQHandler
+	.thumb_set TIM3_IRQHandler,Default_Handler
+
+	.weak	TIM4_IRQHandler
+	.thumb_set TIM4_IRQHandler,Default_Handler
+
+	.weak	I2C1_EV_IRQHandler
+	.thumb_set I2C1_EV_IRQHandler,Default_Handler
+
+	.weak	I2C1_ER_IRQHandler
+	.thumb_set I2C1_ER_IRQHandler,Default_Handler
+
+	.weak	I2C2_EV_IRQHandler
+	.thumb_set I2C2_EV_IRQHandler,Default_Handler
+
+	.weak	I2C2_ER_IRQHandler
+	.thumb_set I2C2_ER_IRQHandler,Default_Handler
+
+	.weak	SPI1_IRQHandler
+	.thumb_set SPI1_IRQHandler,Default_Handler
+
+	.weak	SPI2_IRQHandler
+	.thumb_set SPI2_IRQHandler,Default_Handler
+
+	.weak	USART1_IRQHandler
+	.thumb_set USART1_IRQHandler,Default_Handler
+
+	.weak	USART2_IRQHandler
+	.thumb_set USART2_IRQHandler,Default_Handler
+
+	.weak	USART3_IRQHandler
+	.thumb_set USART3_IRQHandler,Default_Handler
+
+	.weak	EXTI15_10_IRQHandler
+	.thumb_set EXTI15_10_IRQHandler,Default_Handler
+
+	.weak	RTC_Alarm_IRQHandler
+	.thumb_set RTC_Alarm_IRQHandler,Default_Handler
+
+	.weak	DFSDM1_FLT3_IRQHandler
+	.thumb_set DFSDM1_FLT3_IRQHandler,Default_Handler
+
+	.weak	TIM8_BRK_IRQHandler
+	.thumb_set TIM8_BRK_IRQHandler,Default_Handler
+
+	.weak	TIM8_UP_IRQHandler
+	.thumb_set TIM8_UP_IRQHandler,Default_Handler
+
+	.weak	TIM8_TRG_COM_IRQHandler
+	.thumb_set TIM8_TRG_COM_IRQHandler,Default_Handler
+
+	.weak	TIM8_CC_IRQHandler
+	.thumb_set TIM8_CC_IRQHandler,Default_Handler
+
+	.weak	ADC3_IRQHandler
+	.thumb_set ADC3_IRQHandler,Default_Handler
+
+	.weak	FMC_IRQHandler
+	.thumb_set FMC_IRQHandler,Default_Handler
+
+	.weak	SDMMC1_IRQHandler
+	.thumb_set SDMMC1_IRQHandler,Default_Handler
+
+	.weak	TIM5_IRQHandler
+	.thumb_set TIM5_IRQHandler,Default_Handler
+
+	.weak	SPI3_IRQHandler
+	.thumb_set SPI3_IRQHandler,Default_Handler
+
+	.weak	UART4_IRQHandler
+	.thumb_set UART4_IRQHandler,Default_Handler
+
+	.weak	UART5_IRQHandler
+	.thumb_set UART5_IRQHandler,Default_Handler
+
+	.weak	TIM6_DAC_IRQHandler
+	.thumb_set TIM6_DAC_IRQHandler,Default_Handler
+
+	.weak	TIM7_IRQHandler
+	.thumb_set TIM7_IRQHandler,Default_Handler
+
+	.weak	DMA2_Channel1_IRQHandler
+	.thumb_set DMA2_Channel1_IRQHandler,Default_Handler
+
+	.weak	DMA2_Channel2_IRQHandler
+	.thumb_set DMA2_Channel2_IRQHandler,Default_Handler
+
+	.weak	DMA2_Channel3_IRQHandler
+	.thumb_set DMA2_Channel3_IRQHandler,Default_Handler
+
+	.weak	DMA2_Channel4_IRQHandler
+	.thumb_set DMA2_Channel4_IRQHandler,Default_Handler
+
+	.weak	DMA2_Channel5_IRQHandler
+	.thumb_set DMA2_Channel5_IRQHandler,Default_Handler
+
+	.weak	DFSDM1_FLT0_IRQHandler
+	.thumb_set DFSDM1_FLT0_IRQHandler,Default_Handler	
+	
+	.weak	DFSDM1_FLT1_IRQHandler
+	.thumb_set DFSDM1_FLT1_IRQHandler,Default_Handler	
+	
+	.weak	DFSDM1_FLT2_IRQHandler
+	.thumb_set DFSDM1_FLT2_IRQHandler,Default_Handler	
+	
+	.weak	COMP_IRQHandler
+	.thumb_set COMP_IRQHandler,Default_Handler
+	
+	.weak	LPTIM1_IRQHandler
+	.thumb_set LPTIM1_IRQHandler,Default_Handler
+	
+	.weak	LPTIM2_IRQHandler
+	.thumb_set LPTIM2_IRQHandler,Default_Handler	
+	
+	.weak	OTG_FS_IRQHandler
+	.thumb_set OTG_FS_IRQHandler,Default_Handler	
+	
+	.weak	DMA2_Channel6_IRQHandler
+	.thumb_set DMA2_Channel6_IRQHandler,Default_Handler	
+	
+	.weak	DMA2_Channel7_IRQHandler
+	.thumb_set DMA2_Channel7_IRQHandler,Default_Handler	
+	
+	.weak	LPUART1_IRQHandler
+	.thumb_set LPUART1_IRQHandler,Default_Handler	
+	
+	.weak	QUADSPI_IRQHandler
+	.thumb_set QUADSPI_IRQHandler,Default_Handler	
+	
+	.weak	I2C3_EV_IRQHandler
+	.thumb_set I2C3_EV_IRQHandler,Default_Handler	
+	
+	.weak	I2C3_ER_IRQHandler
+	.thumb_set I2C3_ER_IRQHandler,Default_Handler	
+	
+	.weak	SAI1_IRQHandler
+	.thumb_set SAI1_IRQHandler,Default_Handler
+	
+	.weak	SAI2_IRQHandler
+	.thumb_set SAI2_IRQHandler,Default_Handler
+	
+	.weak	SWPMI1_IRQHandler
+	.thumb_set SWPMI1_IRQHandler,Default_Handler
+	
+	.weak	TSC_IRQHandler
+	.thumb_set TSC_IRQHandler,Default_Handler
+	
+	.weak	RNG_IRQHandler
+	.thumb_set RNG_IRQHandler,Default_Handler
+	
+	.weak	FPU_IRQHandler
+	.thumb_set FPU_IRQHandler,Default_Handler
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/