Try STM Nucleo L432 LED.

example-led/Makefile

@@ -2,15 +2,20 @@
 
 PROJECT = sample
 
-### Currently, it's for STM32F0 Discovery.
+### Currently, it is for STM32 Nucleo L432
+### 
 ### Please change lines started with '###' for Cortex-M3 board.
+###
+### Please change lines started with '###' for Cortex-M0+ board
+### (STM32F0 Discovery).
 
 CHOPSTX = ..
-LDSCRIPT= sample.ld
+LDSCRIPT= sample.ld.m4
+### LDSCRIPT= sample.ld
 ### LDSCRIPT= sample.ld.m3
 CSRC = sample.c
 
-CHIP=stm32f0
+CHIP=stm32l4
 USE_SYS = yes
 
 ###################################
@@ -20,7 +25,8 @@ LD   = $(CROSS)gcc
 OBJCOPY   = $(CROSS)objcopy
 
 ### MCU   = cortex-m3
-MCU   = cortex-m0
+### MCU   = cortex-m0
+MCU   = cortex-m4
 CWARN = -Wall -Wextra -Wstrict-prototypes
 DEFS  = -DUSE_SYS3 -DFREE_STANDING -DMHZ=48
 ### DEFS  = -DFREE_STANDING -DUSE_SYS3 -DBUSY_LOOP -DCHX_FLAGS_MAIN=CHOPSTX_SCHED_RR

example-led/board.h

@@ -1 +1 @@
-../board/board-stm32f0-discovery.h
+../board/board-st-nucleo-l432.h

example-led/sample.c

@@ -1,6 +1,8 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <chopstx.h>
+
+#include "board.h"
 #include "sys.h" /* for set_led */
 
 static chopstx_mutex_t mtx;

example-led/sample.ld.m4

@@ -0,0 +1,107 @@
+/*
+ * ST32L4 memory setup.
+ */
+MEMORY
+{
+    flash  : org = 0x08000000, len = 256k
+    ram : org = 0x20000000, len = 48k
+}
+
+__ram_start__           = ORIGIN(ram);
+__ram_size__            = 20k;
+__ram_end__             = __ram_start__ + __ram_size__;
+
+SECTIONS
+{
+    . = 0;
+
+    _text = .;
+
+    .startup : ALIGN(128) SUBALIGN(128)
+    {
+        KEEP(*(.startup.vectors))
+        . = ALIGN(16);
+	_sys = .;
+	. = ALIGN(16);
+	KEEP(*(.sys.version))
+	KEEP(*(.sys.board_id))
+	KEEP(*(.sys.board_name))
+	build/sys-*.o(.text)
+	build/sys-*.o(.text.*)
+	build/sys-*.o(.rodata)
+	build/sys-*.o(.rodata.*)
+	. = ALIGN(1024);
+    } > flash =0xffffffff
+
+    .text : ALIGN(16) SUBALIGN(16)
+    {
+        *(.text.startup.*)
+        *(.text)
+        *(.text.*)
+        *(.rodata)
+        *(.rodata.*)
+        *(.glue_7t)
+        *(.glue_7)
+        *(.gcc*)
+	. = ALIGN(8);
+    } > flash
+
+    .ARM.extab : {*(.ARM.extab* .gnu.linkonce.armextab.*)} > flash
+
+    .ARM.exidx : {
+        PROVIDE(__exidx_start = .);
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+        PROVIDE(__exidx_end = .);
+     } > flash
+
+    .eh_frame_hdr : {*(.eh_frame_hdr)} > flash
+
+    .eh_frame : ONLY_IF_RO {*(.eh_frame)} > flash
+
+    .textalign : ONLY_IF_RO { . = ALIGN(8); } > flash
+
+    _etext = .;
+    _textdata = _etext;
+
+    .stacks (NOLOAD) :
+    {
+        *(.main_stack)
+        *(.process_stack.0)
+        *(.process_stack.1)
+        *(.process_stack.2)
+        *(.process_stack.3)
+        . = ALIGN(8);
+    } > ram
+
+    .data :
+    {
+        . = ALIGN(4);
+        PROVIDE(_data = .);
+        *(.data)
+        . = ALIGN(4);
+        *(.data.*)
+        . = ALIGN(4);
+        *(.ramtext)
+        . = ALIGN(4);
+        PROVIDE(_edata = .);
+    } > ram AT > flash
+
+    .bss :
+    {
+        . = ALIGN(4);
+        PROVIDE(_bss_start = .);
+        *(.bss)
+        . = ALIGN(4);
+        *(.bss.*)
+        . = ALIGN(4);
+        *(COMMON)
+        . = ALIGN(4);
+        PROVIDE(_bss_end = .);
+    } > ram
+
+    PROVIDE(end = .);
+    _end            = .;
+}
+
+__heap_base__   = _end;
+__heap_end__    = __ram_end__;