Create new variant files

Ive mostly filled out the .h and .cpp files
Still need to update some of the defines

The .ld file is copied verbatim from the seed
The .c file still needs to be modified

Author: beserge

variants/STM32H7xx/H742I(G-I)(K-T)_H743I(G-I)(K-T)_H750IB(K-T)_H753II(K-T)/DAISY_PATCH_SM.ld

@@ -0,0 +1,238 @@
+/*
+******************************************************************************
+**
+**  File        : LinkerScript.ld
+**
+**  Author		: Auto-generated by STM32CubeIDE
+**
+**  Abstract    : Linker script for Daisy Seed Board embedding STM32H750IBKx Device from STM32H7 series
+**                      128Kbytes FLASH
+**                      128Kbytes DTCMRAM
+**                      64Kbytes ITCMRAM
+**                      512Kbytes RAM_D1
+**                      288Kbytes RAM_D2
+**                      64Kbytes RAM_D3
+**
+**                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
+**
+**  Distribution: The file is distributed as is without any warranty
+**                of any kind.
+**
+*****************************************************************************
+** @attention
+**
+** <h2><center>&copy; COPYRIGHT(c) 2019 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.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x24080000;	/* end of "RAM_D1" Ram type memory */
+
+_Min_Heap_Size = 0x200;	/* required amount of heap  */
+_Min_Stack_Size = 0x400;	/* required amount of stack */
+
+/* Memories definition */
+MEMORY
+{
+    DTCMRAM	(xrw)	: ORIGIN = 0x20000000,	LENGTH = 128K
+    ITCMRAM	(xrw)	: ORIGIN = 0x00000000,	LENGTH = 64K
+    RAM_D1	(xrw)	: ORIGIN = 0x24000000,	LENGTH = 512K
+    RAM_D2	(xrw)	: ORIGIN = 0x30000000,	LENGTH = 288K
+    RAM_D3	(xrw)	: ORIGIN = 0x38000000,	LENGTH = 64K
+    FLASH	(rx)	: ORIGIN = 0x8000000,	LENGTH = 128K
+    SDRAM   (xrw)   : ORIGIN = 0xC0000000,  LENGTH = 64M
+    QSPIFLASH (xr)  : ORIGIN = 0x90000000,  LENGTH = 8M
+}
+
+/* Sections */
+SECTIONS
+{
+  /* The startup code into "FLASH" Rom type memory */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } >FLASH
+
+  /* The program code and other data into "FLASH" Rom type memory */
+  .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 into "FLASH" Rom type memory */
+  .rodata :
+  {
+    . = ALIGN(4);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(4);
+  } >FLASH
+
+  .ARM.extab   : { 
+  	. = ALIGN(4);
+  	*(.ARM.extab* .gnu.linkonce.armextab.*)
+  	. = ALIGN(4);
+  } >FLASH
+  
+  .ARM : {
+    . = ALIGN(4);
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+    . = ALIGN(4);
+  } >FLASH
+
+  .preinit_array     :
+  {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+    . = ALIGN(4);
+  } >FLASH
+  
+  .init_array :
+  {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+    . = ALIGN(4);
+  } >FLASH
+  
+  .fini_array :
+  {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+    . = ALIGN(4);
+  } >FLASH
+
+  /* Used by the startup to initialize data */
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections into "RAM_D1" Ram type memory */
+  .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_D1 AT> FLASH
+  
+  /* Uninitialized data section into "RAM_D1" Ram type memory */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss section */
+    _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_D1
+
+  .sram1_bss (NOLOAD) :
+  {
+    . = ALIGN(4);
+    _ssram1_bss = .;
+    PROVIDE(__sram1_bss_start = _ssram1_bss);
+    *(.sram1_bss)
+    *(.sram1_bss*)
+    . = ALIGN(4);
+    _esram1_bss = .;
+    PROVIDE(__sram1_bss_end = _esram1_bss);
+  } >RAM_D2
+
+  /* User_heap_stack section, used to check that there is enough "RAM_D1" Ram  type memory left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(8);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >RAM_D1
+
+  /* Uninitialized data section called "SDRAM_BSS" */
+  /* Variables, etc. must be explicitly placed here */
+  /* can be assigned by using: */
+  /* int variable __attribute__((section(".sdram_bss"))) foo; */
+  .sdram_bss (NOLOAD) :
+  {
+      . = ALIGN(4);
+      _ssdram_bss = .;
+      PROVIDE(__sdram_bss_start = _ssdram_bss);
+      *(.sdram_bss)
+      *(.sdram_bss*)
+      . = ALIGN(4);
+      _esdram_bss = .;
+      PROVIDE(__sdram_bss_end = _esdram_bss);
+  } >SDRAM
+
+  /* Remove information from the compiler libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}