попытка перенести работу с прерываниями в hal. зависаем где-то, не доходя до trap_handler(), хотя по map файлу все логично

cores/arduino/mik32/shared/ldscripts/spifi_cpp.ld

@@ -21,8 +21,8 @@ SECTIONS {
         *crt0.S.o(.text .text.*)
         *(.text.smallsysteminit)
         *(.text.SmallSystemInit)
-        . = ORIGIN(rom) + 0xC0;
-        KEEP(*crt0.S.o(.trap_text))
+        /*. = ORIGIN(rom) + 0xC0;*/
+        /*KEEP(*crt0.S.o(.trap_text))*/
 
         *(.text)
         *(.text.*)
@@ -50,16 +50,17 @@ SECTIONS {
     AT( __TEXT_END__ ) {
         PROVIDE(__DATA_START__ = .);
         _gp = .;
+        . = ORIGIN(ram) + 0xC0;
+        KEEP(*crt0.S.o(.trap_text))
         *(.srodata.cst16) *(.srodata.cst8) *(.srodata.cst4) *(.srodata.cst2) *(.srodata*)
         *(.sdata .sdata.* .sdata* .sdata*.* .gnu.linkonce.s.*)
         *(.data .data.*)
-        *(.ramfunc) 
         . = ALIGN(CL_SIZE);
-    } >ram 
-
+        PROVIDE(__DATA_END__ = .);
+    } >ram
+    
     __DATA_IMAGE_START__ = LOADADDR(.data);
     __DATA_IMAGE_END__ = LOADADDR(.data) + SIZEOF(.data);
-    ASSERT(__DATA_IMAGE_END__ < ORIGIN(rom) + LENGTH(rom), "Data image overflows rom section")
 
     /* thread-local data segment */
     .tdata : {
@@ -85,10 +86,26 @@ SECTIONS {
 
     .bss : {
         *(.bss .bss.*)
+        *(COMMON)
         . = ALIGN(CL_SIZE);
         PROVIDE(__BSS_END__ = .);
     } >ram
 
+    /* Code intended to be copied to REGION_RAM before execution */
+    .ram_text : 
+    AT( ALIGN(__DATA_IMAGE_END__, CL_SIZE) ) {
+        PROVIDE(__RAM_TEXT_START__ = .);
+        *(.ram_text)
+        . = ALIGN(CL_SIZE);
+        PROVIDE(__RAM_TEXT_END__ = .);
+    } > ram
+
+    __RAM_TEXT_IMAGE_START__ = LOADADDR(.ram_text);
+    __RAM_TEXT_IMAGE_END__ = LOADADDR(.ram_text) + SIZEOF(.ram_text);
+    ASSERT(__RAM_TEXT_IMAGE_END__ < ORIGIN(rom) + LENGTH(rom), "rom segment overflows")
+
+    ASSERT(__RAM_TEXT_END__ < ORIGIN(ram) + LENGTH(ram) - STACK_SIZE - HEAP_SIZE, "REGION_RAM section overflows")
+
     .heap : {
         PROVIDE(__heap_start = .);
         . += HEAP_SIZE;

cores/arduino/mik32/shared/runtime/crt0.S

@@ -62,6 +62,11 @@ memset_2:
 
 _start:
     
+    li t0, 128000
+    start_loop_delay:
+    nop
+    addi t0, t0, -1
+    bnez t0, start_loop_delay
     # Init stack and global pointer
     #
     la_abs  sp, __C_STACK_TOP__
@@ -73,20 +78,19 @@ _start:
     la_abs  a2, __DATA_IMAGE_END__
     la_abs  a3, __DATA_START__
     memcpy  a1, a2, a3, t0
+
+    # Init ramfunc
+    #
+    la_abs  a1, __RAM_TEXT_IMAGE_START__
+    la_abs  a2, __RAM_TEXT_IMAGE_END__
+    la_abs  a3, __RAM_TEXT_START__
+    memcpy  a1, a2, a3, t0
     
     # Clear bss
     #
     la_abs  a1, __BSS_START__
     la_abs  a2, __BSS_END__
     memset a1, a2, zero
-
-    #ifdef MIK32V0
-    # Enable pad_config clocking
-    #
-    li t0, (1 << 3)
-    li t1, 0x50014
-    sw t0, (t1)
-    #endif
     
     jalr_abs ra, SmallSystemInit
     jalr_abs ra, SystemInit