Teensy-3.0: Rename Teensy-3.1 linker script; add a new linker script for Teensy-3.0
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Gregory Nutt
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@ -16,21 +16,29 @@ README
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MK20DX128VLH5 with slightly less capability. There are many difference
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between the MK20DX256VLH7 and the MK20DX128VLH5 but the basic differences
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that effect how you configure NuttX are:
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mk20dx128vlh5
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--------------- -------------- -------------- ---------------------------
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Feature Teensy 3.0 Teensy 3.1 CONFIGURATION
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Feature Teensy 3.0 Teensy 3.1 Teensy 3.0 CONFIGURATION
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--------------- -------------- -------------- ---------------------------
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Processor
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Core MK20DX128VLH5 MK20DX256VLH7 CONFIG_ARCH_CHIP_MK20DX128VLH5
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Rated Speed 48 MHz 72 MHz Settings in include/board.h
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Overclockable 96 MHz 96 MHz CONFIG_TEENSY_3X_OVERCLOCK
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Flash Memory 128 KB 256 KB See scripts/flash.ld
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SRAM 16 KB 64 KB See scripts/flash.ld and
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set CONFIG_RAM_SIZE=???
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Core MK20DX128VLH5 MK20DX256VLH7 CONFIG_ARCH_CHIP_MK20DX128VLH5=y
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Rated Speed 48 MHz 72 MHz See Note 1
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Overclockable 96 MHz 96 MHz CONFIG_TEENSY_3X_OVERCLOCK=y
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Flash Memory 128 KB 256 KB See Note 1
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SRAM 16 KB 64 KB CONFIG_RAM_SIZE=16384 and
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see Note 2
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--------------- -------------- -------------- ---------------------------
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NOTES:
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1. Settings in configs/teensy-3.x/include/board.h will automatically
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select the correct clocking based on CONFIG_ARCH_CHIP_MK20DX128VLH5=y.
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2. The linker script at configs/teensy-3.x/scripts/mk30dx128vlh5.ld will
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automatically be selected when CONFIG_ARCH_CHIP_MK20DX128VLH5=y. It
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will use the correct FLASH and SRAM sizes.
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The initial Teensy-3.1 port is largely the effort of Jakob Odersky.
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https://github.com/jodersky/nuttx/tree/teensy31-7.6
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https://github.com/jodersky/nuttx/tree/teensy31-7.6 and
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https://github.com/jodersky/px4-nuttx
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Contents
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========
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@ -37,7 +37,11 @@ include ${TOPDIR}/.config
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include ${TOPDIR}/tools/Config.mk
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include ${TOPDIR}/arch/arm/src/armv7-m/Toolchain.defs
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LDSCRIPT = flash.ld
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ifeq ($(CONFIG_ARCH_CHIP_MK20DX256VLH7),y)
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LDSCRIPT = mk20dx256vlh7.ld
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else ifeq ($(CONFIG_ARCH_CHIP_MK20DX128VLH5),y)
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LDSCRIPT = mk20dx128vlh5.ld
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endif
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ifeq ($(WINTOOL),y)
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# Windows-native toolchains
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142
configs/teensy-3.x/scripts/mk20dx128vlh5.ld
Normal file
142
configs/teensy-3.x/scripts/mk20dx128vlh5.ld
Normal file
@ -0,0 +1,142 @@
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/****************************************************************************
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* configs/teensy-3.x/scripts/mk20dx128vlh5.ld
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/* The _MK20DX128VLH5 has 128Kb of FLASH beginning at address 0x0000:0000 and
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* 16Kb of SRAM beginning at address 0x1c00:0000 (SRAM_L) and 0x2000:000
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* bitband region (SRAM_U).
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*
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* NOTE: that the first part of the K20 FLASH region is reserved for
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* interrupt vectflash and, following that, is a region from 0x0000:0400
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* to 0x0000:040f that is reserved for the FLASH control fields (FCF).
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*
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* NOTE: The on-chip RAM is split evenly among SRAM_L and SRAM_U. The RAM is
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* also implemented such that the SRAM_L and SRAM_U ranges form a
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* contiguous block in the memory map.
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*/
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MEMORY
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{
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vectflash (rx) : ORIGIN = 0x00000000, LENGTH = 1K
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cfmprotect (rx) : ORIGIN = 0x00000400, LENGTH = 16
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progflash (rx) : ORIGIN = 0x00000800, LENGTH = 128K - 2K
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datasram (rwx) : ORIGIN = 0x1fffe000, LENGTH = 16K
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}
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OUTPUT_ARCH(arm)
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ENTRY(_stext)
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EXTERN(__flashconfigbytes)
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SECTIONS
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{
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.vectors : {
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_svectors = ABSOLUTE(.);
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*(.vectors)
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_evectors = ABSOLUTE(.);
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} > vectflash
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.cfmprotect : {
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KEEP(*(.cfmconfig))
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} > cfmprotect
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.text : {
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_stext = ABSOLUTE(.);
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*(.text .text.*)
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*(.fixup)
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*(.gnu.warning)
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*(.rodata .rodata.*)
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*(.gnu.linkonce.t.*)
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*(.glue_7)
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*(.glue_7t)
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*(.got)
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*(.gcc_except_table)
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*(.gnu.linkonce.r.*)
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_etext = ABSOLUTE(.);
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} > progflash
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.init_section : {
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_sinit = ABSOLUTE(.);
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*(.init_array .init_array.*)
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_einit = ABSOLUTE(.);
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} > progflash
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.ARM.extab : {
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*(.ARM.extab*)
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} > progflash
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__exidx_start = ABSOLUTE(.);
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.ARM.exidx : {
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*(.ARM.exidx*)
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} > progflash
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__exidx_end = ABSOLUTE(.);
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.data : {
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_sdata = ABSOLUTE(.);
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*(.data .data.*)
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*(.gnu.linkonce.d.*)
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CONSTRUCTORS
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_edata = ABSOLUTE(.);
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} > datasram AT > progflash
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_eronly = LOADADDR(.data);
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.ramfunc ALIGN(4): {
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_sramfuncs = ABSOLUTE(.);
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*(.ramfunc .ramfunc.*)
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_eramfuncs = ABSOLUTE(.);
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} > datasram AT > progflash
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_framfuncs = LOADADDR(.ramfunc);
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.bss : {
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_sbss = ABSOLUTE(.);
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*(.bss .bss.*)
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*(.gnu.linkonce.b.*)
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*(COMMON)
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_ebss = ABSOLUTE(.);
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} > datasram
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/* Stabs debugging sections. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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.comment 0 : { *(.comment) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_info 0 : { *(.debug_info) }
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.debug_line 0 : { *(.debug_line) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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.debug_aranges 0 : { *(.debug_aranges) }
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}
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@ -1,5 +1,5 @@
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/****************************************************************************
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* configs/teensy-3.x/scripts/flash.ld
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* configs/teensy-3.x/scripts/mk20dx256vlh7.ld
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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