From 0b531b10d735462fa452437b86499f5886f29200 Mon Sep 17 00:00:00 2001
From: Ea-r-th <39779954+Ea-r-th@users.noreply.github.com>
Date: Fri, 13 Mar 2026 00:50:15 -0700
Subject: [PATCH] marginal moves towards h7 working

---
 CMakeLists.txt                                |  10 +-
 ...H753XX_FLASH.ld => stm32h753zitx_flash.ld} | 111 ++++--------------
 SHAL/Src/Universal/syscalls.c                 |   4 +-
 SHAL/Src/Universal/sysmem.c                   |   4 +-
 SHAL/Src/main.cpp                             |   1 -
 gcc-arm-none-eabi.cmake                       |   2 +-
 6 files changed, 36 insertions(+), 96 deletions(-)
 rename MX/H753ZIT6/{STM32H753XX_FLASH.ld => stm32h753zitx_flash.ld} (65%)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index bb86791..9408168 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,18 +5,19 @@ set(CMAKE_TOOLCHAIN_FILE ${CMAKE_CURRENT_LIST_DIR}/gcc-arm-none-eabi.cmake)
 project(shmingo-HAL)
 set(PROJECT_DIR ${CMAKE_CURRENT_SOURCE_DIR})
 
+enable_language(C ASM CXX)
+
 set(MCU_FAMILY "STM32H7xx")
 set(MCU_MODEL "STM32H753xx")
 
 set(CPU_PARAMETERS
         -mcpu=cortex-m7
-        -mthumb
         -mfpu=fpv5-d16
         -mfloat-abi=hard
 )
 
 set(STARTUP_SCRIPT ${CMAKE_CURRENT_SOURCE_DIR}/MX/H753ZIT6/startup_stm32h753xx.S)
-set(MCU_LINKER_SCRIPT ${CMAKE_CURRENT_SOURCE_DIR}/MX/H753ZIT6/STM32H753XX_FLASH.ld)
+set(MCU_LINKER_SCRIPT ${CMAKE_CURRENT_SOURCE_DIR}/MX/H753ZIT6/stm32h753zitx_flash.ld)
 
 set(EXECUTABLE ${CMAKE_PROJECT_NAME})
 enable_language(C CXX ASM)
@@ -73,8 +74,9 @@ ${STARTUP_SCRIPT}
 )
 
 target_compile_definitions(${EXECUTABLE} PRIVATE
-    ${MCU_MODEL}
-    ${MCU_FAMILY}
+        USE_PWR_LDO_SUPPLY
+        ${MCU_MODEL}
+        ${MCU_FAMILY}
 )
 
 target_include_directories(${EXECUTABLE} PRIVATE
diff --git a/MX/H753ZIT6/STM32H753XX_FLASH.ld b/MX/H753ZIT6/stm32h753zitx_flash.ld
similarity index 65%
rename from MX/H753ZIT6/STM32H753XX_FLASH.ld
rename to MX/H753ZIT6/stm32h753zitx_flash.ld
index 458f4e4..0a01421 100644
--- a/MX/H753ZIT6/STM32H753XX_FLASH.ld
+++ b/MX/H753ZIT6/stm32h753zitx_flash.ld
@@ -22,7 +22,7 @@
 *****************************************************************************
 ** @attention
 **
-** <h2><center>&copy; COPYRIGHT(c) 2025 STMicroelectronics</center></h2>
+** <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:
@@ -52,6 +52,12 @@
 /* Entry Point */
 ENTRY(Reset_Handler)
 
+/* Highest address of the user mode stack */
+_estack = ORIGIN(DTCMRAM) + LENGTH(DTCMRAM);    /* 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
 {
@@ -63,12 +69,6 @@ ITCMRAM (xrw)      : ORIGIN = 0x00000000, LENGTH = 64K
 FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 2048K
 }
 
-/* Highest address of the user mode stack */
-_estack = ORIGIN(DTCMRAM) + LENGTH(DTCMRAM);    /* 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 */
-
 /* Define output sections */
 SECTIONS
 {
@@ -106,131 +106,68 @@ SECTIONS
     . = ALIGN(4);
   } >FLASH
 
-  .ARM.extab (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
-  {
-    . = ALIGN(4);
-    *(.ARM.extab* .gnu.linkonce.armextab.*)
-    . = ALIGN(4);
-  } >FLASH
-
-  .ARM (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
-  {
-    . = ALIGN(4);
+  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+  .ARM : {
     __exidx_start = .;
     *(.ARM.exidx*)
     __exidx_end = .;
-    . = ALIGN(4);
   } >FLASH
 
-  .preinit_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
+  .preinit_array     :
   {
-    . = ALIGN(4);
     PROVIDE_HIDDEN (__preinit_array_start = .);
     KEEP (*(.preinit_array*))
     PROVIDE_HIDDEN (__preinit_array_end = .);
-    . = ALIGN(4);
   } >FLASH
-
-  .init_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
+  .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 (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
+  .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 goes into RAM, load LMA copy after code */
-  .data :
+  .data : 
   {
     . = ALIGN(4);
     _sdata = .;        /* create a global symbol at data start */
     *(.data)           /* .data sections */
     *(.data*)          /* .data* sections */
-    *(.RamFunc)        /* .RamFunc sections */
-    *(.RamFunc*)       /* .RamFunc* sections */
 
     . = ALIGN(4);
-  } >DTCMRAM AT> FLASH
-
- /* Initialized TLS data section */
-  .tdata : ALIGN(4)
-  {
-    *(.tdata .tdata.* .gnu.linkonce.td.*)
-    . = ALIGN(4);
     _edata = .;        /* define a global symbol at data end */
-    PROVIDE(__data_end = .);
-    PROVIDE(__tdata_end = .);
   } >DTCMRAM AT> FLASH
 
-  PROVIDE( __tdata_start = ADDR(.tdata) );
-  PROVIDE( __tdata_size = __tdata_end - __tdata_start );
-
-  PROVIDE( __data_start = ADDR(.data) );
-  PROVIDE( __data_size = __data_end - __data_start );
-
-  PROVIDE( __tdata_source = LOADADDR(.tdata) );
-  PROVIDE( __tdata_source_end = LOADADDR(.tdata) + SIZEOF(.tdata) );
-  PROVIDE( __tdata_source_size = __tdata_source_end - __tdata_source );
-
-  PROVIDE( __data_source = LOADADDR(.data) );
-  PROVIDE( __data_source_end = __tdata_source_end );
-  PROVIDE( __data_source_size = __data_source_end - __data_source );
+  
   /* Uninitialized data section */
-  .tbss (NOLOAD) : ALIGN(4)
+  . = ALIGN(4);
+  .bss :
   {
-     /* This is used by the startup in order to initialize the .bss secion */
+    /* This is used by the startup in order to initialize the .bss secion */
     _sbss = .;         /* define a global symbol at bss start */
     __bss_start__ = _sbss;
-    *(.tbss .tbss.*)
-    . = ALIGN(4);
-    PROVIDE( __tbss_end = . );
-  } >DTCMRAM
-
-  PROVIDE( __tbss_start = ADDR(.tbss) );
-  PROVIDE( __tbss_size = __tbss_end - __tbss_start );
-  PROVIDE( __tbss_offset = ADDR(.tbss) - ADDR(.tdata) );
-
-  PROVIDE( __tls_base = __tdata_start );
-  PROVIDE( __tls_end = __tbss_end );
-  PROVIDE( __tls_size = __tls_end - __tls_base );
-  PROVIDE( __tls_align = MAX(ALIGNOF(.tdata), ALIGNOF(.tbss)) );
-  PROVIDE( __tls_size_align = (__tls_size + __tls_align - 1) & ~(__tls_align - 1) );
-  PROVIDE( __arm32_tls_tcb_offset = MAX(8, __tls_align) );
-  PROVIDE( __arm64_tls_tcb_offset = MAX(16, __tls_align) );
-
-  .bss (NOLOAD) : ALIGN(4)
-  {
     *(.bss)
     *(.bss*)
     *(COMMON)
 
-      . = ALIGN(4);
+    . = ALIGN(4);
     _ebss = .;         /* define a global symbol at bss end */
     __bss_end__ = _ebss;
-      PROVIDE( __bss_end = .);
   } >DTCMRAM
-  PROVIDE( __non_tls_bss_start = ADDR(.bss) );
-
-  PROVIDE( __bss_start = __tbss_start );
-  PROVIDE( __bss_size = __bss_end - __bss_start );
 
   /* User_heap_stack section, used to check that there is enough RAM left */
-  ._user_heap_stack (NOLOAD) :
+  ._user_heap_stack :
   {
     . = ALIGN(8);
     PROVIDE ( end = . );
@@ -240,14 +177,16 @@ SECTIONS
     . = ALIGN(8);
   } >DTCMRAM
 
-
+  
 
   /* Remove information from the standard libraries */
   /DISCARD/ :
   {
-    libc.a:* ( * )
-    libm.a:* ( * )
-    libgcc.a:* ( * )
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
   }
 
 }
+
+
diff --git a/SHAL/Src/Universal/syscalls.c b/SHAL/Src/Universal/syscalls.c
index f3462a0..e33a849 100644
--- a/SHAL/Src/Universal/syscalls.c
+++ b/SHAL/Src/Universal/syscalls.c
@@ -1,8 +1,8 @@
 /**
  ******************************************************************************
  * @file      syscalls.c
- * @author    Auto-generated by STM32CubeIDE
- * @brief     STM32CubeIDE Minimal System calls file
+ * @author    Auto-generated by STM32CubeMX
+ * @brief     Minimal System calls file
  *
  *            For more information about which c-functions
  *            need which of these lowlevel functions
diff --git a/SHAL/Src/Universal/sysmem.c b/SHAL/Src/Universal/sysmem.c
index 6122419..246470e 100644
--- a/SHAL/Src/Universal/sysmem.c
+++ b/SHAL/Src/Universal/sysmem.c
@@ -1,8 +1,8 @@
 /**
  ******************************************************************************
  * @file      sysmem.c
- * @author    Generated by STM32CubeIDE
- * @brief     STM32CubeIDE System Memory calls file
+ * @author    Generated by STM32CubeMX
+ * @brief     System Memory calls file
  *
  *            For more information about which C functions
  *            need which of these lowlevel functions
diff --git a/SHAL/Src/main.cpp b/SHAL/Src/main.cpp
index 4446e9a..fcdd553 100644
--- a/SHAL/Src/main.cpp
+++ b/SHAL/Src/main.cpp
@@ -16,7 +16,6 @@ int main() {
     PIN(A3).setPinMode(PinMode::OUTPUT_MODE);
     PIN(B0).setPinMode(PinMode::ALTERNATE_FUNCTION_MODE);
 
-
     while (true) {
         PIN(A3).toggle();
         PIN(B0).toggle();
diff --git a/gcc-arm-none-eabi.cmake b/gcc-arm-none-eabi.cmake
index 609c314..7e82e4e 100644
--- a/gcc-arm-none-eabi.cmake
+++ b/gcc-arm-none-eabi.cmake
@@ -1,7 +1,7 @@
 set(CMAKE_SYSTEM_NAME Generic)
 set(CMAKE_SYSTEM_PROCESSOR arm)
 
-set(TOOLCHAIN_PREFIX "C:/Program Files (x86)/Arm/GNU Toolchain mingw-w64-i686-arm-none-eabi/bin/arm-none-eabi-")
+set(TOOLCHAIN_PREFIX arm-none-eabi-)
 
 set(CMAKE_C_COMPILER   ${TOOLCHAIN_PREFIX}gcc.exe)
 set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}g++.exe)