[HUB-1][SETUP] Initial commit for IOTA2-HUB Connectivity project

This commit also includes tasks for HUB-2 and HUB-4
Build path will be set to: tools/ARM-GNU/Linux64

.gitignore

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+# Prerequisites #
+*.d
+
+# Object files #
+*.o
+*.obj
+*.elf
+*.bin
+
+# Linker output #
+*.ilk
+*.map
+
+# Libraries #
+*.lib
+*.a
+
+# Shared objects (inc. Windows DLLs) #
+*.dll
+*.so
+*.so.*
+
+# Executables #
+*.exe
+*.out
+*.hex
+
+# System #
+*~
+*.swp
+*.swo
+.depend
+tags
+
+# Git #
+*.orig
+*.rej
+*.patch
+
+# Project #
+.cproject
+.project
+.settings/
+
+# Output #
+build/
+
+# as some tools might contain object files or libraries, 
+# include everything tools directry may have
+!tools/**
+

README.md

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+# iota2
+
+> Making Imaginations, Real
+
+<i2.iotasquare@gmail.com>
+
+## IOTA2-HUB
+IOTA2-HUB is an Ethernet connectivity module that is able to 
+monitorvarious components and provides multiple options to 
+connect over a number of internet protocols
+
+## System Configurations
+* MCU : STM32F407IGTx
+* CORE : ARM Cortex-M4
+* Package : LQFP100
+* RAM : 128KB - 0x20000 ( @ 0x20000000)
+* Flash : 512KB - 0x80000 ( @ 0x08000000)
+* Compilation Path : ./tools/ARM-GNU/Libux64
+
+## License
+#### GNU GPU v3
+> This program 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.
+ This program 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.
+
+**Free Software, Hell Yeah!**
+

STM32F407IGTx_FLASH.ld

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+/**
+ * @date        07-09-2019
+ * @author      iota square <i2>
+ *  _       _        ___  
+ * (_)     | |      |__ \.
+ *  _  ___ | |_ __ _   ) |
+ * | |/ _ \| __/ _` | / / 
+ * | | (_) | || (_| |/ /_ 
+ * |_|\___/ \__\__,_|____|
+ *
+ *
+ * @File        LinkerScript.ld
+ *
+ * @Abstract    Linker script for STM32F407IGTx Device with
+ *              512KByte FLASH, 192KByte RAM
+ *
+ *              Set heap size, stack size and stack location according
+ *              to application requirements.
+ *
+ *              Set memory bank area and size if external memory is used.
+ *
+ * @Target      STMicroelectronics STM32
+ *
+ * @License     GNU GPU v3
+ *
+ * This program 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.
+ *
+ * This program 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.
+ *
+ * Free Software, Hell Yeah!
+ *
+ **/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20020000;    /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0x200;      /* required amount of heap  */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Specify the memory areas */
+MEMORY
+{
+FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 512K
+RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 192K
+CCMRAM (rw)      : ORIGIN = 0x10000000, LENGTH = 64K
+}
+
+/* Define output sections */
+SECTIONS
+{
+  /* The startup code goes first into FLASH */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } >FLASH
+
+  /* The program code and other data goes into FLASH */
+  .text :
+  {
+    . = ALIGN(4);
+    *(.text)           /* .text sections (code) */
+    *(.text*)          /* .text* sections (code) */
+    *(.glue_7)         /* glue arm to thumb code */
+    *(.glue_7t)        /* glue thumb to arm code */
+    *(.eh_frame)
+
+    KEEP (*(.init))
+    KEEP (*(.fini))
+
+    . = ALIGN(4);
+    _etext = .;        /* define a global symbols at end of code */
+  } >FLASH
+
+  /* Constant data goes into FLASH */
+  .rodata :
+  {
+    . = ALIGN(4);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(4);
+  } >FLASH
+
+  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+  .ARM : {
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+  } >FLASH
+
+  .preinit_array     :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  } >FLASH
+  .init_array :
+  {
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+  } >FLASH
+  .fini_array :
+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  } >FLASH
+
+  /* used by the startup to initialize data */
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections goes into RAM, load LMA copy after code */
+  .data : 
+  {
+    . = ALIGN(4);
+    _sdata = .;        /* create a global symbol at data start */
+    *(.data)           /* .data sections */
+    *(.data*)          /* .data* sections */
+
+    . = ALIGN(4);
+    _edata = .;        /* define a global symbol at data end */
+  } >RAM AT> FLASH
+
+  _siccmram = LOADADDR(.ccmram);
+
+  /* CCM-RAM section 
+  * 
+  * IMPORTANT NOTE! 
+  * If initialized variables will be placed in this section,
+  * the startup code needs to be modified to copy the init-values.  
+  */
+  .ccmram :
+  {
+    . = ALIGN(4);
+    _sccmram = .;       /* create a global symbol at ccmram start */
+    *(.ccmram)
+    *(.ccmram*)
+
+    . = ALIGN(4);
+    _eccmram = .;       /* create a global symbol at ccmram end */
+  } >CCMRAM AT> FLASH
+
+
+  /* Uninitialized data section */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss secion */
+    _sbss = .;         /* define a global symbol at bss start */
+    __bss_start__ = _sbss;
+    *(.bss)
+    *(.bss*)
+    *(COMMON)
+
+    . = ALIGN(4);
+    _ebss = .;         /* define a global symbol at bss end */
+    __bss_end__ = _ebss;
+  } >RAM
+
+  /* User_heap_stack section, used to check that there is enough RAM left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(8);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >RAM
+
+
+
+  /* Remove information from the standard libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}
+
+/************************ (C) COPYRIGHT iota2 ************END OF FILE**********/
+

app/inc/main.h

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+/**
+ * @date        07-09-2019
+ * @author      iota square <i2>
+ *  _       _        ___  
+ * (_)     | |      |__ \.
+ *  _  ___ | |_ __ _   ) |
+ * | |/ _ \| __/ _` | / / 
+ * | | (_) | || (_| |/ /_ 
+ * |_|\___/ \__\__,_|____|
+ *
+ * @License     GNU GPU v3
+ *
+ * This program 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.
+ *
+ * This program 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.
+ *
+ * Free Software, Hell Yeah!
+ *
+ **/
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __MAIN_H
+#define __MAIN_H
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx.h"
+#include "stm32f4xx_conf.h"
+
+/*
+ * This is the IOTA2-CONN-EMB SW version in format MAJOR.MINOR.HOTFIX
+ * Note that Hotfix is 16 bit and Minor and Major is 8 bit.
+ */
+#define IOTA2_CONN_EMB_MAJOR_VERSION_NUMBER           (1) //a value between 0-255
+#define IOTA2_CONN_EMB_MINOR_VERSION_NUMBER           (0) //a value between 0-255
+#define IOTA2_CONN_EMB_HOTFIX_VERSION_NUMBER          (0) //a value between 0-65535
+
+/* Exported define -----------------------------------------------------------*/
+#define LED1_PIN        GPIO_Pin_8
+#define LED2_PIN        GPIO_Pin_9
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions ------------------------------------------------------- */
+
+#endif /* __MAIN_H */
+
+/************************ (C) COPYRIGHT iota2 ************END OF FILE**********/
+