Makefile and minor modifications to build

STM32L432KC_Template/CMSIS/Device/ST/STM32L4xx/Include/stm32l432xx.h

@@ -65,7 +65,7 @@
 #define __MPU_PRESENT             1       /*!< STM32L4XX provides an MPU                     */
 #define __NVIC_PRIO_BITS          4       /*!< STM32L4XX uses 4 Bits for the Priority Levels */
 #define __Vendor_SysTickConfig    0       /*!< Set to 1 if different SysTick Config is used  */
-#define __FPU_PRESENT             1       /*!< FPU present                                   */
+#define __FPU_PRESENT             0       /*!< FPU present                                   */
 
 /**
   * @}

STM32L432KC_Template/CMSIS/Device/ST/STM32L4xx/Include/stm32l4xx.h

@@ -0,0 +1,257 @@
+/**
+  ******************************************************************************
+  * @file    stm32l4xx.h
+  * @author  MCD Application Team
+  * @brief   CMSIS STM32L4xx Device Peripheral Access Layer Header File.
+  *
+  *          The file is the unique include file that the application programmer
+  *          is using in the C source code, usually in main.c. This file contains:
+  *           - Configuration section that allows to select:
+  *              - The STM32L4xx device used in the target application
+  *              - To use or not the peripheral’s drivers in application code(i.e.
+  *                code will be based on direct access to peripheral’s registers
+  *                rather than drivers API), this option is controlled by
+  *                "#define USE_HAL_DRIVER"
+  *
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2017 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.
+  *
+  ******************************************************************************
+  */
+
+/** @addtogroup CMSIS
+  * @{
+  */
+
+/** @addtogroup stm32l4xx
+  * @{
+  */
+
+#ifndef __STM32L4xx_H
+#define __STM32L4xx_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif /* __cplusplus */
+
+/** @addtogroup Library_configuration_section
+  * @{
+  */
+
+/**
+  * @brief STM32 Family
+  */
+#if !defined (STM32L4)
+#define STM32L4
+#endif /* STM32L4 */
+
+/* Uncomment the line below according to the target STM32L4 device used in your
+   application
+  */
+
+#if !defined (STM32L431xx) && !defined (STM32L432xx) && !defined (STM32L433xx) && !defined (STM32L442xx) && !defined (STM32L443xx) && \
+    !defined (STM32L451xx) && !defined (STM32L452xx) && !defined (STM32L462xx) && \
+    !defined (STM32L471xx) && !defined (STM32L475xx) && !defined (STM32L476xx) && !defined (STM32L485xx) && !defined (STM32L486xx) && \
+    !defined (STM32L496xx) && !defined (STM32L4A6xx) && \
+    !defined (STM32L4R5xx) && !defined (STM32L4R7xx) && !defined (STM32L4R9xx) && !defined (STM32L4S5xx) && !defined (STM32L4S7xx) && !defined (STM32L4S9xx)
+  /* #define STM32L431xx */   /*!< STM32L431xx Devices */
+   #define STM32L432xx    /*!< STM32L432xx Devices */
+  /* #define STM32L433xx */   /*!< STM32L433xx Devices */
+  /* #define STM32L442xx */   /*!< STM32L442xx Devices */
+  /* #define STM32L443xx */   /*!< STM32L443xx Devices */
+  /* #define STM32L451xx */   /*!< STM32L451xx Devices */
+  /* #define STM32L452xx */   /*!< STM32L452xx Devices */
+  /* #define STM32L462xx */   /*!< STM32L462xx Devices */
+  /* #define STM32L471xx */   /*!< STM32L471xx Devices */
+  /* #define STM32L475xx */   /*!< STM32L475xx Devices */
+  /* #define STM32L476xx */   /*!< STM32L476xx Devices */
+  /* #define STM32L485xx */   /*!< STM32L485xx Devices */
+  /* #define STM32L486xx */   /*!< STM32L486xx Devices */
+  /* #define STM32L496xx */   /*!< STM32L496xx Devices */
+  /* #define STM32L4A6xx */   /*!< STM32L4A6xx Devices */
+  /* #define STM32L4R5xx */   /*!< STM32L4R5xx Devices */
+  /* #define STM32L4R7xx */   /*!< STM32L4R7xx Devices */
+  /* #define STM32L4R9xx */   /*!< STM32L4R9xx Devices */
+  /* #define STM32L4S5xx */   /*!< STM32L4S5xx Devices */
+  /* #define STM32L4S7xx */   /*!< STM32L4S7xx Devices */
+  /* #define STM32L4S9xx */   /*!< STM32L4S9xx Devices */
+#endif
+
+/*  Tip: To avoid modifying this file each time you need to switch between these
+        devices, you can define the device in your toolchain compiler preprocessor.
+  */
+#if !defined  (USE_HAL_DRIVER)
+/**
+ * @brief Comment the line below if you will not use the peripherals drivers.
+   In this case, these drivers will not be included and the application code will
+   be based on direct access to peripherals registers
+   */
+  /*#define USE_HAL_DRIVER */
+#endif /* USE_HAL_DRIVER */
+
+/**
+  * @brief CMSIS Device version number
+  */
+#define __STM32L4_CMSIS_VERSION_MAIN   (0x01) /*!< [31:24] main version */
+#define __STM32L4_CMSIS_VERSION_SUB1   (0x04) /*!< [23:16] sub1 version */
+#define __STM32L4_CMSIS_VERSION_SUB2   (0x02) /*!< [15:8]  sub2 version */
+#define __STM32L4_CMSIS_VERSION_RC     (0x00) /*!< [7:0]  release candidate */
+#define __STM32L4_CMSIS_VERSION        ((__STM32L4_CMSIS_VERSION_MAIN << 24)\
+                                       |(__STM32L4_CMSIS_VERSION_SUB1 << 16)\
+                                       |(__STM32L4_CMSIS_VERSION_SUB2 << 8 )\
+                                       |(__STM32L4_CMSIS_VERSION_RC))
+
+/**
+  * @}
+  */
+
+/** @addtogroup Device_Included
+  * @{
+  */
+
+#if defined(STM32L431xx)
+  #include "stm32l431xx.h"
+#elif defined(STM32L432xx)
+  #include "stm32l432xx.h"
+#elif defined(STM32L433xx)
+  #include "stm32l433xx.h"
+#elif defined(STM32L442xx)
+  #include "stm32l442xx.h"
+#elif defined(STM32L443xx)
+  #include "stm32l443xx.h"
+#elif defined(STM32L451xx)
+  #include "stm32l451xx.h"
+#elif defined(STM32L452xx)
+  #include "stm32l452xx.h"
+#elif defined(STM32L462xx)
+  #include "stm32l462xx.h"
+#elif defined(STM32L471xx)
+  #include "stm32l471xx.h"
+#elif defined(STM32L475xx)
+  #include "stm32l475xx.h"
+#elif defined(STM32L476xx)
+  #include "stm32l476xx.h"
+#elif defined(STM32L485xx)
+  #include "stm32l485xx.h"
+#elif defined(STM32L486xx)
+  #include "stm32l486xx.h"
+#elif defined(STM32L496xx)
+  #include "stm32l496xx.h"
+#elif defined(STM32L4A6xx)
+  #include "stm32l4a6xx.h"
+#elif defined(STM32L4R5xx)
+  #include "stm32l4r5xx.h"
+#elif defined(STM32L4R7xx)
+  #include "stm32l4r7xx.h"
+#elif defined(STM32L4R9xx)
+  #include "stm32l4r9xx.h"
+#elif defined(STM32L4S5xx)
+  #include "stm32l4s5xx.h"
+#elif defined(STM32L4S7xx)
+  #include "stm32l4s7xx.h"
+#elif defined(STM32L4S9xx)
+  #include "stm32l4s9xx.h"
+#else
+ #error "Please select first the target STM32L4xx device used in your application (in stm32l4xx.h file)"
+#endif
+
+/**
+  * @}
+  */
+
+/** @addtogroup Exported_types
+  * @{
+  */
+typedef enum
+{
+  RESET = 0,
+  SET = !RESET
+} FlagStatus, ITStatus;
+
+typedef enum
+{
+  DISABLE = 0,
+  ENABLE = !DISABLE
+} FunctionalState;
+#define IS_FUNCTIONAL_STATE(STATE) (((STATE) == DISABLE) || ((STATE) == ENABLE))
+
+typedef enum
+{
+  ERROR = 0,
+  SUCCESS = !ERROR
+} ErrorStatus;
+
+/**
+  * @}
+  */
+
+
+/** @addtogroup Exported_macros
+  * @{
+  */
+#define SET_BIT(REG, BIT)     ((REG) |= (BIT))
+
+#define CLEAR_BIT(REG, BIT)   ((REG) &= ~(BIT))
+
+#define READ_BIT(REG, BIT)    ((REG) & (BIT))
+
+#define CLEAR_REG(REG)        ((REG) = (0x0))
+
+#define WRITE_REG(REG, VAL)   ((REG) = (VAL))
+
+#define READ_REG(REG)         ((REG))
+
+#define MODIFY_REG(REG, CLEARMASK, SETMASK)  WRITE_REG((REG), (((READ_REG(REG)) & (~(CLEARMASK))) | (SETMASK)))
+
+#define POSITION_VAL(VAL)     (__CLZ(__RBIT(VAL)))
+
+
+/**
+  * @}
+  */
+
+#if defined (USE_HAL_DRIVER)
+ #include "stm32l4xx_hal.h"
+#endif /* USE_HAL_DRIVER */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __STM32L4xx_H */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

STM32L432KC_Template/CMSIS/Device/ST/STM32L4xx/Source/Makefile

@@ -0,0 +1,59 @@
+PROJECT=main
+
+# Selecting Core
+CORTEX_M=4
+
+# Use newlib-nano. To disable it, specify USE_NANO=
+USE_NANO=--specs=nano.specs
+
+# Use seimhosting or not
+# USE_SEMIHOST=--specs=rdimon.specs
+# USE_SEMIHOST=--specs=nosys.specs
+
+# Compiler & Linker
+CC=arm-none-eabi-gcc
+AR=arm-none-eabi-ar
+AS=arm-none-eabi-as
+LD=arm-none-eabi-ld
+SIZE=arm-none-eabi-size
+OBJCOPY=arm-none-eabi-objcopy
+OBJDUMP=arm-none-eabi-objdump
+
+LDSCRIPTS=-L. -T STM32L432KCUx_FLASH.ld
+
+INCLUDES = \
+	-I../Include \
+	-I../../../../Include \
+	-I../../../../../STM32L4xx_HAL_Driver/Inc
+
+SOURCES = main.c \
+	system_stm32l4xx.c \
+	startup_stm32l432xx.s \
+
+# Options for specific architecture
+ARCH_FLAGS=-mthumb -mcpu=cortex-m$(CORTEX_M)
+
+# -Os -flto -ffunction-sections -fdata-sections to compile for code size
+# CFLAGS=$(ARCH_FLAGS) $(INCLUDES) -Os -flto -ffunction-sections -fdata-sections
+CFLAGS=$(ARCH_FLAGS) $(INCLUDES) -g -flto -ffunction-sections -fdata-sections
+
+# Link for code size and create a map file
+LFLAGS=$(USE_NANO) $(USE_SEMIHOST) -nostartfiles -Wl,--gc-sections,-Map=$(PROJECT).map
+# LFLAGS=$(USE_NANO) $(USE_SEMIHOST) -Wl,--gc-sections,-Map=$(PROJECT).map
+
+all: $(PROJECT).bin $(PROJECT).dis $(PROJECT).axf
+
+# Build ELF w/ symbols
+$(PROJECT).axf: $(SOURCES)
+	$(CC) $^ $(CFLAGS) $(LFLAGS) $(LDSCRIPTS) -o $@
+
+# Generate binary to flash
+$(PROJECT).bin: $(PROJECT).axf
+	$(OBJCOPY) -O binary $< $@
+
+# Export dissassembly of binary
+$(PROJECT).dis: $(PROJECT).axf	
+	$(OBJDUMP) -S -d -marm $< -Mforce-thumb > $@
+
+clean: 
+	rm -f *.axf *.bin *.map *.dis *.o

STM32L432KC_Template/CMSIS/Device/ST/STM32L4xx/Source/STM32L432KCUx_FLASH.ld

@@ -0,0 +1,203 @@
+/*
+*****************************************************************************
+**
+
+**  File        : LinkerScript.ld
+**
+**  Abstract    : Linker script for STM32L432KCUx Device with
+**                256KByte FLASH, 64KByte RAM
+**
+**                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.
+**
+**  (c)Copyright Ac6.
+**  You may use this file as-is or modify it according to the needs of your
+**  project. Distribution of this file (unmodified or modified) is not
+**  permitted. Ac6 permit registered System Workbench for MCU users the
+**  rights to distribute the assembled, compiled & linked contents of this
+**  file as part of an application binary file, provided that it is built
+**  using the System Workbench for MCU toolchain.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x2000c000;    /* 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
+{
+FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 256K
+RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 48K
+SRAM2 (rw)      : ORIGIN = 0x10000000, LENGTH = 16K
+}
+
+/* Define output sections */
+SECTIONS
+{
+  /* The startup code goes first into FLASH */
+  .isr_vector :
+  {
+    . = ALIGN(8);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(8);
+  } >FLASH
+
+  /* The program code and other data goes into FLASH */
+  .text :
+  {
+    . = ALIGN(8);
+    *(.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(8);
+    _etext = .;        /* define a global symbols at end of code */
+  } >FLASH
+
+  /* Constant data goes into FLASH */
+  .rodata :
+  {
+    . = ALIGN(8);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(8);
+  } >FLASH
+
+  .ARM.extab   : 
+  { 
+  . = ALIGN(8);
+  *(.ARM.extab* .gnu.linkonce.armextab.*)
+  . = ALIGN(8);
+  } >FLASH
+  .ARM : {
+	. = ALIGN(8);
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+	. = ALIGN(8);
+  } >FLASH
+
+  .preinit_array     :
+  {
+	. = ALIGN(8);
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+	. = ALIGN(8);
+  } >FLASH
+  
+  .init_array :
+  {
+	. = ALIGN(8);
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+	. = ALIGN(8);
+  } >FLASH
+  .fini_array :
+  {
+	. = ALIGN(8);
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+	. = ALIGN(8);
+  } >FLASH
+
+  /* used by the startup to initialize data */
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections goes into RAM, load LMA copy after code */
+  .data : 
+  {
+    . = ALIGN(8);
+    _sdata = .;        /* create a global symbol at data start */
+    *(.data)           /* .data sections */
+    *(.data*)          /* .data* sections */
+
+    . = ALIGN(8);
+    _edata = .;        /* define a global symbol at data end */
+  } >RAM AT> FLASH
+
+  _sisram2 = LOADADDR(.sram2);
+
+  /* CCM-RAM section 
+  * 
+  * IMPORTANT NOTE! 
+  * If initialized variables will be placed in this section,
+  * the startup code needs to be modified to copy the init-values.  
+  */
+  .sram2 :
+  {
+    . = ALIGN(8);
+    _ssram2 = .;       /* create a global symbol at sram2 start */
+    *(.sram2)
+    *(.sram2*)
+    
+    . = ALIGN(8);
+    _esram2 = .;       /* create a global symbol at sram2 end */
+  } >SRAM2 AT> FLASH
+
+  
+  /* Uninitialized data section */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss secion */
+    _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
+
+  /* User_heap_stack section, used to check that there is enough RAM left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(8);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >RAM
+
+  
+
+  /* Remove information from the standard libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}
+
+

STM32L432KC_Template/CMSIS/Device/ST/STM32L4xx/Source/main.c

@@ -0,0 +1,11 @@
+// #include <stdio.h>
+
+#include <stdint.h>
+
+void main()
+{
+	for (;;) {
+	 //    printf("Hello, world!");
+		// printf("\n");
+	}
+}

STM32L432KC_Template/CMSIS/Device/ST/STM32L4xx/Source/Templates/startup_stm32l432xx.s

@@ -109,7 +109,7 @@ LoopFillZerobss:
 /* Call the clock system intitialization function.*/
     bl  SystemInit
 /* Call static constructors */
-    bl __libc_init_array
+    /* bl __libc_init_array */
 /* Call the application's entry point.*/
 	bl	main