feat: add STM32 four-channel weighing firmware

2026-07-28 11:01:55 +08:00
commit 1282b9b77e
205 changed files with 80376 additions and 0 deletions
@@ -0,0 +1,95 @@
+ENTRY(Reset_Handler)
+
+MEMORY
+{
+  FLASH (rx)  : ORIGIN = 0x08000000, LENGTH = 256K
+  RAM   (xrw) : ORIGIN = 0x20000000, LENGTH = 48K
+}
+
+_estack = ORIGIN(RAM) + LENGTH(RAM);
+_Min_Heap_Size = 0x200;
+_Min_Stack_Size = 0x400;
+
+SECTIONS
+{
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector))
+    . = ALIGN(4);
+  } > FLASH
+
+  .text :
+  {
+    . = ALIGN(4);
+    *(.text .text.*)
+    *(.rodata .rodata.*)
+    KEEP(*(.init))
+    KEEP(*(.fini))
+    . = ALIGN(4);
+    _etext = .;
+  } > FLASH
+
+  .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } > FLASH
+  .ARM.exidx :
+  {
+    __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
+
+  _sidata = LOADADDR(.data);
+  .data :
+  {
+    . = ALIGN(4);
+    _sdata = .;
+    *(.data .data.*)
+    . = ALIGN(4);
+    _edata = .;
+  } > RAM AT > FLASH
+
+  .bss (NOLOAD) :
+  {
+    . = ALIGN(4);
+    _sbss = .;
+    __bss_start__ = _sbss;
+    *(.bss .bss.*)
+    *(COMMON)
+    . = ALIGN(4);
+    _ebss = .;
+    __bss_end__ = _ebss;
+  } > RAM
+
+  ._user_heap_stack (NOLOAD) :
+  {
+    . = ALIGN(8);
+    PROVIDE(end = .);
+    PROVIDE(_end = .);
+    . += _Min_Heap_Size;
+    . += _Min_Stack_Size;
+    . = ALIGN(8);
+  } > RAM
+
+  /DISCARD/ : { *(.note.GNU-stack) }
+}