Adding Bantam-specific CRC/Magic number code

Fixes #1
2026-09-22 03:08:42 +08:00 · 2020-01-10 19:24:32 -06:00
parent 15cfefbf8d
commit 2fc74165c9
4 changed files with 200 additions and 17 deletions
@@ -14,15 +14,15 @@
 # BOARDs for use directly from the make command line (with default settings) or by the CONFIGS above.

 ifeq ("$(BOARD)","g2v9i")
-    BASE_BOARD=g2v9
-    DEVICE_DEFINES += MOTATE_BOARD="G2v9i"
-    DEVICE_DEFINES += SETTINGS_FILE=${SETTINGS_FILE}
+	BASE_BOARD=g2v9
+	DEVICE_DEFINES += MOTATE_BOARD="G2v9i"
+	DEVICE_DEFINES += SETTINGS_FILE=${SETTINGS_FILE}
 endif

 ifeq ("$(BOARD)","g2v9k")
-    BASE_BOARD=g2v9
-    DEVICE_DEFINES += MOTATE_BOARD="G2v9k"
-    DEVICE_DEFINES += SETTINGS_FILE=${SETTINGS_FILE}
+	BASE_BOARD=g2v9
+	DEVICE_DEFINES += MOTATE_BOARD="G2v9k"
+	DEVICE_DEFINES += SETTINGS_FILE=${SETTINGS_FILE}
 endif


@@ -30,19 +30,30 @@ endif
 # The general g2v9 BASE_BOARD.

 ifeq ("$(BASE_BOARD)","g2v9")
-    _BOARD_FOUND = 1
+	_BOARD_FOUND = 1

-    FIRST_LINK_SOURCES += $(sort $(wildcard ${MOTATE_PATH}/Atmel_sam_common/*.cpp)) $(sort $(wildcard ${MOTATE_PATH}/Atmel_sam3x/*.cpp))
+	FIRST_LINK_SOURCES += $(sort $(wildcard ${MOTATE_PATH}/Atmel_sam_common/*.cpp)) $(sort $(wildcard ${MOTATE_PATH}/Atmel_sam3x/*.cpp))

-    # Set CHIP and export it for GDB to see
-    CHIP = SAM3X8C
-    export CHIP
-    CHIP_LOWERCASE = sam3x8c
+	# Set CHIP and export it for GDB to see
+	CHIP = SAM3X8C
+	export CHIP
+	CHIP_LOWERCASE = sam3x8c

-    BOARD_PATH = ./board/G2v9
-    SOURCE_DIRS += ${BOARD_PATH} device/step_dir_driver
+	BOARD_PATH = ./board/G2v9
+	SOURCE_DIRS += ${BOARD_PATH} device/step_dir_driver

-    PLATFORM_BASE = ${MOTATE_PATH}/platform/atmel_sam
+	PLATFORM_BASE = ${MOTATE_PATH}/platform/atmel_sam
+
+	include $(PLATFORM_BASE).mk
+
+	ifeq ("$(BANTAM)", "1")
+		CUSTOM_LINKER_SCRIPT := board/G2v9/bantam-checksum-flash.ld
+		ALL_ADDITIONS += $(OUTPUT_BIN)-summed.bin
+define ADDITIONAL_RECIPES
+$(OUTPUT_BIN)-summed.bin: $(OUTPUT_BIN).bin
+	$(QUIET)printf "%08x" `cksum $(OUTPUT_BIN).bin | cut -d' ' -f1` | xxd -r -p | dd of=$(OUTPUT_BIN)-summed.bin bs=1 count=4 seek=256 conv=notrunc
+	$(QUIET)printf "%08x" `ls -nl "$(OUTPUT_BIN).bin" | cut -d' ' -f5` | xxd -r -p | dd of=$(OUTPUT_BIN)-summed.bin bs=1 count=4 seek=260 conv=notrunc
+endef
+endif

-    include $(PLATFORM_BASE).mk
 endif
@@ -0,0 +1,170 @@
+/**
+ * \file
+ *
+ * \brief Flash Linker script for SAM.
+ *
+ * Copyright (c) 2011-2013 Atmel Corporation. All rights reserved.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * 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. The name of Atmel may not be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * 4. This software may only be redistributed and used in connection with an
+ *    Atmel microcontroller product.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
+ *
+ * \asf_license_stop
+ *
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+SEARCH_DIR(.)
+
+/* Memory Spaces Definitions */
+MEMORY
+{
+	rom (rx)    : ORIGIN = 0x00080000, LENGTH = 0x00080000 /* Flash, 512K */
+	sram0 (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00010000 /* sram0, 64K */
+	sram1 (rwx) : ORIGIN = 0x20080000, LENGTH = 0x00008000 /* sram1, 32K */
+	ram (rwx)   : ORIGIN = 0x20070000, LENGTH = 0x00018000 /* sram, 96K */
+/*	ram (rwx)   : ORIGIN = ORIGIN( sram1 )-LENGTH( sram0 ), LENGTH = LENGTH( sram0 )+LENGTH( sram1 ) */ /* sram, 96K */
+}
+
+/* The stack size used by the application. NOTE: you need to adjust  */
+__stack_size__ = DEFINED(__stack_size__) ? __stack_size__ : 0x2000;
+__ram_end__ = ORIGIN(ram) + LENGTH(ram) - 4;
+
+/* Section Definitions */
+SECTIONS
+{
+    .text :
+    {
+        . = ALIGN(4);
+        _sfixed = .;
+        KEEP(*(.vectors .vectors.*))
+
+        /* "CNCFORALL!!!" is our magic to identify a valid firmware image */
+        BYTE(0x43) BYTE(0x4e) BYTE(0x43) BYTE(0x46) BYTE(0x4f) BYTE(0x52) BYTE(0x41) BYTE(0x4c) BYTE(0x4c) BYTE(0x21) BYTE(0x21) BYTE(0x21)
+        /* CRC32 goes here */
+        LONG(0x54545454)
+        /* Length of binary goes here */
+        LONG(0x47474747)
+
+        *(.text .text.* .gnu.linkonce.t.*)
+        *(.hot_func .hot_func.*)
+        *(.glue_7t) *(.glue_7)
+        *(.rodata .rodata* .gnu.linkonce.r.*)
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+
+        /* Support C constructors, and C destructors in both user code
+           and the C library. This also provides support for C++ code. */
+        . = ALIGN(4);
+        KEEP(*(.init))
+        . = ALIGN(4);
+        __preinit_array_start = .;
+        KEEP (*(.preinit_array))
+        __preinit_array_end = .;
+
+        . = ALIGN(4);
+        __init_array_start = .;
+        KEEP (*(SORT(.init_array.*)))
+        KEEP (*(.init_array))
+        __init_array_end = .;
+
+        . = ALIGN(0x4);
+        KEEP (*crtbegin.o(.ctors))
+        KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
+        KEEP (*(SORT(.ctors.*)))
+        KEEP (*crtend.o(.ctors))
+
+        . = ALIGN(4);
+        KEEP(*(.fini))
+
+        . = ALIGN(4);
+        __fini_array_start = .;
+        KEEP (*(.fini_array))
+        KEEP (*(SORT(.fini_array.*)))
+        __fini_array_end = .;
+
+        KEEP (*crtbegin.o(.dtors))
+        KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
+        KEEP (*(SORT(.dtors.*)))
+        KEEP (*crtend.o(.dtors))
+
+        . = ALIGN(4);
+        _efixed = .;            /* End of text section */
+    } > rom
+
+    /* .ARM.exidx is sorted, so has to go in its own output section.  */
+    PROVIDE_HIDDEN (__exidx_start = .);
+    .ARM.exidx :
+    {
+      *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+    } > rom
+    PROVIDE_HIDDEN (__exidx_end = .);
+
+    . = ALIGN(4);
+    _etext = .;
+
+    .relocate : AT (_etext)
+    {
+        . = ALIGN(4);
+        _srelocate = .;
+        *(.ramfunc .ramfunc.*);
+        *(.hot_data .hot_data.*);
+        *(.data .data.*);
+        . = ALIGN(4);
+        _erelocate = .;
+    } > ram
+
+    /* .bss section which is used for uninitialized data */
+    .bss ALIGN(4) (NOLOAD) :
+    {
+        . = ALIGN(4);
+        _sbss = . ;
+        _szero = .;
+        *(.bss .bss.*)
+        *(COMMON)
+        . = ALIGN(4);
+        _ebss = . ;
+        _ezero = .;
+    } > ram
+
+    /* stack section */
+    .stack (NOLOAD):
+    {
+        . = ALIGN(8);
+         _sstack = .;
+        . = . + __stack_size__;
+        . = ALIGN(8);
+        _estack = .;
+    } > ram
+
+    . = ALIGN(4);
+    _end = . ;
+}
@@ -37,6 +37,7 @@ endif
 ifeq ("$(CONFIG)","Othermill")
    ifeq ("$(BOARD)","NONE")
        BOARD=g2v9k
+        BANTAM=1
    endif
    SETTINGS_FILE="settings_othermill.h"
 endif
@@ -44,6 +45,7 @@ endif
 ifeq ("$(CONFIG)","OthermillPro")
    ifeq ("$(BOARD)","NONE")
        BOARD=g2v9k
+        BANTAM=1
    endif
    SETTINGS_FILE="settings_othermill_pro.h"
 endif