diff --git a/configs/teensy-3.x/README.txt b/configs/teensy-3.x/README.txt index 3fb42b5059..9454fba67e 100644 --- a/configs/teensy-3.x/README.txt +++ b/configs/teensy-3.x/README.txt @@ -16,21 +16,29 @@ README MK20DX128VLH5 with slightly less capability. There are many difference between the MK20DX256VLH7 and the MK20DX128VLH5 but the basic differences that effect how you configure NuttX are: - +mk20dx128vlh5 --------------- -------------- -------------- --------------------------- - Feature Teensy 3.0 Teensy 3.1 CONFIGURATION + Feature Teensy 3.0 Teensy 3.1 Teensy 3.0 CONFIGURATION --------------- -------------- -------------- --------------------------- Processor - Core MK20DX128VLH5 MK20DX256VLH7 CONFIG_ARCH_CHIP_MK20DX128VLH5 - Rated Speed 48 MHz 72 MHz Settings in include/board.h - Overclockable 96 MHz 96 MHz CONFIG_TEENSY_3X_OVERCLOCK - Flash Memory 128 KB 256 KB See scripts/flash.ld - SRAM 16 KB 64 KB See scripts/flash.ld and - set CONFIG_RAM_SIZE=??? + Core MK20DX128VLH5 MK20DX256VLH7 CONFIG_ARCH_CHIP_MK20DX128VLH5=y + Rated Speed 48 MHz 72 MHz See Note 1 + Overclockable 96 MHz 96 MHz CONFIG_TEENSY_3X_OVERCLOCK=y + Flash Memory 128 KB 256 KB See Note 1 + SRAM 16 KB 64 KB CONFIG_RAM_SIZE=16384 and + see Note 2 --------------- -------------- -------------- --------------------------- + NOTES: + 1. Settings in configs/teensy-3.x/include/board.h will automatically + select the correct clocking based on CONFIG_ARCH_CHIP_MK20DX128VLH5=y. + 2. The linker script at configs/teensy-3.x/scripts/mk30dx128vlh5.ld will + automatically be selected when CONFIG_ARCH_CHIP_MK20DX128VLH5=y. It + will use the correct FLASH and SRAM sizes. + The initial Teensy-3.1 port is largely the effort of Jakob Odersky. - https://github.com/jodersky/nuttx/tree/teensy31-7.6 + https://github.com/jodersky/nuttx/tree/teensy31-7.6 and + https://github.com/jodersky/px4-nuttx Contents ======== diff --git a/configs/teensy-3.x/nsh/Make.defs b/configs/teensy-3.x/nsh/Make.defs index b11556a1bc..03bd0ce7f0 100644 --- a/configs/teensy-3.x/nsh/Make.defs +++ b/configs/teensy-3.x/nsh/Make.defs @@ -37,7 +37,11 @@ include ${TOPDIR}/.config include ${TOPDIR}/tools/Config.mk include ${TOPDIR}/arch/arm/src/armv7-m/Toolchain.defs -LDSCRIPT = flash.ld +ifeq ($(CONFIG_ARCH_CHIP_MK20DX256VLH7),y) + LDSCRIPT = mk20dx256vlh7.ld +else ifeq ($(CONFIG_ARCH_CHIP_MK20DX128VLH5),y) + LDSCRIPT = mk20dx128vlh5.ld +endif ifeq ($(WINTOOL),y) # Windows-native toolchains diff --git a/configs/teensy-3.x/scripts/mk20dx128vlh5.ld b/configs/teensy-3.x/scripts/mk20dx128vlh5.ld new file mode 100644 index 0000000000..067b9c9765 --- /dev/null +++ b/configs/teensy-3.x/scripts/mk20dx128vlh5.ld @@ -0,0 +1,142 @@ +/**************************************************************************** + * configs/teensy-3.x/scripts/mk20dx128vlh5.ld + * + * Copyright (C) 2015 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 NuttX 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 OWNER 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. + * + ****************************************************************************/ + +/* The _MK20DX128VLH5 has 128Kb of FLASH beginning at address 0x0000:0000 and + * 16Kb of SRAM beginning at address 0x1c00:0000 (SRAM_L) and 0x2000:000 + * bitband region (SRAM_U). + * + * NOTE: that the first part of the K20 FLASH region is reserved for + * interrupt vectflash and, following that, is a region from 0x0000:0400 + * to 0x0000:040f that is reserved for the FLASH control fields (FCF). + * + * NOTE: The on-chip RAM is split evenly among SRAM_L and SRAM_U. The RAM is + * also implemented such that the SRAM_L and SRAM_U ranges form a + * contiguous block in the memory map. + */ + +MEMORY +{ + vectflash (rx) : ORIGIN = 0x00000000, LENGTH = 1K + cfmprotect (rx) : ORIGIN = 0x00000400, LENGTH = 16 + progflash (rx) : ORIGIN = 0x00000800, LENGTH = 128K - 2K + datasram (rwx) : ORIGIN = 0x1fffe000, LENGTH = 16K +} + +OUTPUT_ARCH(arm) +ENTRY(_stext) +EXTERN(__flashconfigbytes) +SECTIONS +{ + .vectors : { + _svectors = ABSOLUTE(.); + *(.vectors) + _evectors = ABSOLUTE(.); + } > vectflash + + .cfmprotect : { + KEEP(*(.cfmconfig)) + } > cfmprotect + + .text : { + _stext = ABSOLUTE(.); + *(.text .text.*) + *(.fixup) + *(.gnu.warning) + *(.rodata .rodata.*) + *(.gnu.linkonce.t.*) + *(.glue_7) + *(.glue_7t) + *(.got) + *(.gcc_except_table) + *(.gnu.linkonce.r.*) + _etext = ABSOLUTE(.); + } > progflash + + .init_section : { + _sinit = ABSOLUTE(.); + *(.init_array .init_array.*) + _einit = ABSOLUTE(.); + } > progflash + + .ARM.extab : { + *(.ARM.extab*) + } > progflash + + __exidx_start = ABSOLUTE(.); + .ARM.exidx : { + *(.ARM.exidx*) + } > progflash + __exidx_end = ABSOLUTE(.); + + .data : { + _sdata = ABSOLUTE(.); + *(.data .data.*) + *(.gnu.linkonce.d.*) + CONSTRUCTORS + _edata = ABSOLUTE(.); + } > datasram AT > progflash + + _eronly = LOADADDR(.data); + + .ramfunc ALIGN(4): { + _sramfuncs = ABSOLUTE(.); + *(.ramfunc .ramfunc.*) + _eramfuncs = ABSOLUTE(.); + } > datasram AT > progflash + + _framfuncs = LOADADDR(.ramfunc); + + .bss : { + _sbss = ABSOLUTE(.); + *(.bss .bss.*) + *(.gnu.linkonce.b.*) + *(COMMON) + _ebss = ABSOLUTE(.); + } > datasram + + /* Stabs debugging sections. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_info 0 : { *(.debug_info) } + .debug_line 0 : { *(.debug_line) } + .debug_pubnames 0 : { *(.debug_pubnames) } + .debug_aranges 0 : { *(.debug_aranges) } +} diff --git a/configs/teensy-3.x/scripts/flash.ld b/configs/teensy-3.x/scripts/mk20dx256vlh7.ld similarity index 98% rename from configs/teensy-3.x/scripts/flash.ld rename to configs/teensy-3.x/scripts/mk20dx256vlh7.ld index d3a7fc78ad..d909052ea3 100644 --- a/configs/teensy-3.x/scripts/flash.ld +++ b/configs/teensy-3.x/scripts/mk20dx256vlh7.ld @@ -1,5 +1,5 @@ /**************************************************************************** - * configs/teensy-3.x/scripts/flash.ld + * configs/teensy-3.x/scripts/mk20dx256vlh7.ld * * Copyright (C) 2015 Gregory Nutt. All rights reserved. * Author: Gregory Nutt