atmel samd: Basic framework.
Thoughts: should this be a "sam0" family rather than samd? (Much like Atmel's own software package lumps all the cortex-m0+ devices in one family) This was enough to get a basic blinky working at least.
This commit is contained in:
Karl Palsson
parent
b9f3f9da49
commit
53de290fda
1
Makefile
1
Makefile
@ -32,6 +32,7 @@ TARGETS:= stm32/f0 stm32/f1 stm32/f2 stm32/f3 stm32/f4 stm32/f7 \
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lpc13xx lpc17xx lpc43xx/m4 lpc43xx/m0 lm3s lm4f \
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efm32/tg efm32/g efm32/lg efm32/gg \
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sam/3a sam/3n sam/3s sam/3u sam/3x \
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sam/d \
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vf6xx
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# Be silent per default, but 'make V=1' will show all compiler calls.
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@ -49,6 +49,8 @@
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# include <libopencm3/sam/3u/nvic.h>
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#elif defined(SAM3X)
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# include <libopencm3/sam/3x/nvic.h>
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#elif defined(SAMD)
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# include <libopencm3/sam/d/nvic.h>
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#elif defined(LM3S) || defined(LM4F)
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/* Yes, we use the same interrupt table for both LM3S and LM4F */
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26
include/libopencm3/sam/d/irq.json
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26
include/libopencm3/sam/d/irq.json
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@ -0,0 +1,26 @@
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{
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"irqs": [
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"pm",
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"sysctrl",
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"wdt",
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"rtc",
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"eic",
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"nvmctrl",
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"dmac",
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"reserved1",
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"evsys",
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"sercom0",
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"sercom1",
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"sercom2",
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"tcc0",
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"tc1",
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"tc2",
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"adc",
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"ac",
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"dac",
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"ptc"
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],
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"partname_humanreadable": "Atmel SAMD series",
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"partname_doxygen": "SAMD",
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"includeguard": "LIBOPENCM3_SAMD_NVIC_H"
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}
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51
include/libopencm3/sam/d/memorymap.h
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51
include/libopencm3/sam/d/memorymap.h
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@ -0,0 +1,51 @@
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2016 Karl Palsson <karlp@tweak.net.au>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef SAMD_MEMORYMAP_H
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#define SAMD_MEMORYMAP_H
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#include <libopencm3/cm3/common.h>
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/* --- SAMD AHB-APB bridge A -------------------------------------------- */
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#define PM_BASE (0x40000400U)
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#define SYSCTRL_BASE (0x40000800U)
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#define GCLK_BASE (0x40000c00U)
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#define WDT_BASE (0x40001000U)
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#define RTC_BASE (0x40001400U)
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#define EIC_BASE (0x40001800U)
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/* --- SAMD AHB-APB bridge B -------------------------------------------- */
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#define DSU_BASE (0x41002000U)
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#define NVMCTRL_BASE (0x41004000U)
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#define PORT_BASE (0x41004400U)
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#define DMAC_BASE (0x41004800U)
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#define MTB_BASE (0x41006000U)
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/* --- SAMD AHB-APB bridge C -------------------------------------------- */
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#define EVSYS_BASE (0x42000400U)
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#define SERCOM0_BASE (0x42000800U)
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#define SERCOM1_BASE (0x42000c00U)
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#define SERCOM2_BASE (0x42001000U)
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#define TCC0_BASE (0x42001400U)
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#define TC1_BASE (0x42001800U)
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#define TC2_BASE (0x42001c00U)
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#define ADC_BASE (0x42002000U)
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#define AC_BASE (0x42002400U)
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#define DAC_BASE (0x42002800U)
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#define PTC_BASE (0x42002c00U)
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#endif
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68
include/libopencm3/sam/d/port.h
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68
include/libopencm3/sam/d/port.h
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@ -0,0 +1,68 @@
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2016 Karl Palsson <karlp@tweak.net.au>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <libopencm3/cm3/common.h>
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/* --- Convenience macros ------------------------------------------------ */
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#define PORTA PORT_BASE + 0
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#define PORTB PORT_BASE + 0x80
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/* --- PORT registers ----------------------------------------------------- */
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/* Direction register */
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#define PORT_DIR(port) MMIO32((port) + 0x0000)
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/* Direction clear register */
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#define PORT_DIRCLR(port) MMIO32((port) + 0x0004)
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/* Direction set register */
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#define PORT_DIRSET(port) MMIO32((port) + 0x0008)
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/* Direction toggle register */
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#define PORT_DIRTGL(port) MMIO32((port) + 0x000c)
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/* output register */
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#define PORT_OUT(port) MMIO32((port) + 0x0010)
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/* output clear register */
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#define PORT_OUTCLR(port) MMIO32((port) + 0x0014)
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/* output set register */
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#define PORT_OUTSET(port) MMIO32((port) + 0x0018)
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/* output toggle register */
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#define PORT_OUTTGL(port) MMIO32((port) + 0x001c)
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/* input register */
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#define PORT_IN(port) MMIO32((port) + 0x0020)
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/* Control register */
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#define PORT_CTRL(port) MMIO32((port) + 0x0024)
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/* Write configuration register */
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#define PORT_WRCONFIG(port) MMIO32((port) + 0x0028)
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/* Peripheral multiplexing registers */
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#define PORT_PMUX(port, n) MMIO8((port) + 0x0030 + (n))
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/* Pin configuration registers */
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#define PORT_PINCFG(port, n) MMIO8((port) + 0x0040 + (n))
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@ -31,6 +31,8 @@
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# include <libopencm3/sam/3u/memorymap.h>
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#elif defined(SAM3X)
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# include <libopencm3/sam/3x/memorymap.h>
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#elif defined(SAMD)
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# include <libopencm3/sam/d/memorymap.h>
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#else
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# error "Processor family not defined."
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#endif
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@ -187,6 +187,9 @@ sam3x4e* sam3xnfc ROM=256K RAM=32K RAM1=32K
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sam3x8c* sam3x ROM=512K RAM=64K RAM1=32K
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sam3x8e* sam3xnfc ROM=512K RAM=64K RAM1=32K
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samd10?13* samd ROM=8K RAM=4K
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samd10?14* samd ROM=16K RAM=4K
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################################################################################
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# the lpc chips
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@ -411,6 +414,7 @@ sam3n END ROM_OFF=0x00400000 RAM_OFF=0x20000000 CPU=cortex-m3 FPU=soft
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sam3s END ROM_OFF=0x00400000 RAM_OFF=0x20000000 CPU=cortex-m3 FPU=soft
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sam3u END ROM_OFF=0x00080000 RAM_OFF=0x20000000 RAM1_OFF=0x20080000 NFCRAM=4K NFCRAM_OFF=0x20100000 CPU=cortex-m3 FPU=soft
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sam3x END ROM_OFF=0x00080000 RAM_OFF=0x20000000 RAM1_OFF=0x20080000 CPU=cortex-m3 FPU=soft
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samd END ROM_OFF=0x00000000 RAM_OFF=0x20000000 CPU=cortex-m0plus FPU=soft
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################################################################################
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# the lpc families
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@ -45,6 +45,8 @@
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# include "../sam/3u/vector_nvic.c"
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#elif defined(SAM3X)
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# include "../sam/3x/vector_nvic.c"
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#elif defined(SAMD)
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# include "../sam/d/vector_nvic.c"
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#elif defined(VF6XX)
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# include "../vf6xx/vector_nvic.c"
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38
lib/sam/d/Makefile
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38
lib/sam/d/Makefile
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@ -0,0 +1,38 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2016 Karl Palsson <karlp@tweak.net.au>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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LIBNAME = libopencm3_samd
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SRCLIBDIR ?= ../..
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PREFIX ?= arm-none-eabi
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CC = $(PREFIX)-gcc
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AR = $(PREFIX)-ar
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TGT_CFLAGS = -Os -Wall -Wextra -I../../../include -fno-common \
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-mcpu=cortex-m0plus -mthumb $(FP_FLAGS) -Wstrict-prototypes \
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-ffunction-sections -fdata-sections -MD -DSAMD
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TGT_CFLAGS += $(DEBUG_FLAGS)
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# ARFLAGS = rcsv
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ARFLAGS = rcs
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OBJS =
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VPATH += ../../cm3:../common
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include ../../Makefile.include
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106
lib/sam/d/libopencm3_samd.ld
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106
lib/sam/d/libopencm3_samd.ld
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@ -0,0 +1,106 @@
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* Generic linker script for targets using libopencm3. */
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/* Memory regions must be defined in the ld script which includes this one. */
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/* Enforce emmition of the vector table. */
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EXTERN (vector_table)
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/* Define the entry point of the output file. */
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ENTRY(reset_handler)
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/* Define sections. */
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SECTIONS
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{
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.text : {
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*(.vectors) /* Vector table */
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*(.text*) /* Program code */
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. = ALIGN(4);
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*(.rodata*) /* Read-only data */
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. = ALIGN(4);
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} >rom
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/* C++ Static constructors/destructors, also used for __attribute__
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* ((constructor)) and the likes */
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.preinit_array : {
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. = ALIGN(4);
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__preinit_array_start = .;
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KEEP (*(.preinit_array))
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__preinit_array_end = .;
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} >rom
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.init_array : {
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. = ALIGN(4);
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__init_array_start = .;
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array))
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__init_array_end = .;
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} >rom
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.fini_array : {
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. = ALIGN(4);
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__fini_array_start = .;
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KEEP (*(.fini_array))
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KEEP (*(SORT(.fini_array.*)))
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__fini_array_end = .;
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} >rom
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/*
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* Another section used by C++ stuff, appears when using newlib with
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* 64bit (long long) printf support
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*/
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.ARM.extab : {
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*(.ARM.extab*)
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} >rom
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.ARM.exidx : {
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__exidx_start = .;
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*(.ARM.exidx*)
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__exidx_end = .;
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} >rom
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. = ALIGN(4);
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_etext = .;
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.data : {
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_data = .;
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*(.data*) /* Read-write initialized data */
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. = ALIGN(4);
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_edata = .;
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} >ram AT >rom
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_data_loadaddr = LOADADDR(.data);
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.bss : {
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*(.bss*) /* Read-write zero initialized data */
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*(COMMON)
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. = ALIGN(4);
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_ebss = .;
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} >ram
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/*
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* The .eh_frame section appears to be used for C++ exception handling.
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* You may need to fix this if you're using C++.
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*/
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/DISCARD/ : { *(.eh_frame) }
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. = ALIGN(4);
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end = .;
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}
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PROVIDE(_stack = ORIGIN(ram) + LENGTH(ram));
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Block a user