Merge pull request #306 from jeremyherbert/master
add support for seeeduino xiao
This commit is contained in:
Ha Thach
GitHub
commit
f2b761fee9
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@ -18,6 +18,7 @@ This code base already had supported for a handful of following boards (sorted a
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- [Adafruit ItsyBitsy M4 Express](https://www.adafruit.com/product/3800)
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- [Adafruit Metro M0 Express](https://www.adafruit.com/product/3505)
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- [Adafruit Metro M4 Express](https://www.adafruit.com/product/3382)
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- [Seeeduino Xiao](https://www.seeedstudio.com/Seeeduino-XIAO-Arduino-Microcontroller-SAMD21-Cortex-M0+-p-4426.html)
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### Nordic nRF5x
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@ -0,0 +1,45 @@
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CFLAGS += \
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-flto \
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-mthumb \
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-mabi=aapcs-linux \
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-mcpu=cortex-m0plus \
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-nostdlib -nostartfiles \
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-D__SAMD21G18A__ \
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-DCONF_DFLL_OVERWRITE_CALIBRATION=0 \
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-DCFG_TUSB_MCU=OPT_MCU_SAMD21
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# All source paths should be relative to the top level.
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LD_FILE = hw/bsp/$(BOARD)/samd21g18a_flash.ld
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SRC_C += \
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hw/mcu/microchip/samd/asf4/samd21/gcc/gcc/startup_samd21.c \
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hw/mcu/microchip/samd/asf4/samd21/gcc/system_samd21.c \
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hw/mcu/microchip/samd/asf4/samd21/hpl/gclk/hpl_gclk.c \
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hw/mcu/microchip/samd/asf4/samd21/hpl/pm/hpl_pm.c \
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hw/mcu/microchip/samd/asf4/samd21/hpl/sysctrl/hpl_sysctrl.c \
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hw/mcu/microchip/samd/asf4/samd21/hal/src/hal_atomic.c
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INC += \
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$(TOP)/hw/mcu/microchip/samd/asf4/samd21/ \
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$(TOP)/hw/mcu/microchip/samd/asf4/samd21/config \
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$(TOP)/hw/mcu/microchip/samd/asf4/samd21/include \
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$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hal/include \
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$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hal/utils/include \
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$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hpl/pm/ \
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$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hpl/port \
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$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hri \
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$(TOP)/hw/mcu/microchip/samd/asf4/samd21/CMSIS/Include
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# For TinyUSB port source
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VENDOR = microchip
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CHIP_FAMILY = samd
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# For freeRTOS port source
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FREERTOS_PORT = ARM_CM0
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# For flash-jlink target
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JLINK_DEVICE = ATSAMD21G18
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JLINK_IF = swd
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# flash using jlink
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flash: flash-jlink
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@ -0,0 +1,147 @@
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/**
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* \file
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*
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* \brief Linker script for running in internal FLASH on the SAMD21G18A
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*
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* Copyright (c) 2017 Microchip Technology Inc.
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*
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* \asf_license_start
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*
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* \page License
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the Licence at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an AS IS BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* \asf_license_stop
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*
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*/
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OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
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OUTPUT_ARCH(arm)
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SEARCH_DIR(.)
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/* Memory Spaces Definitions */
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MEMORY
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{
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rom (rx) : ORIGIN = 0x00000000 + 8K, LENGTH = 0x00040000 - 8K /* 8K offset to preserve bootloader */
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ram (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
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}
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/* The stack size used by the application. NOTE: you need to adjust according to your application. */
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STACK_SIZE = DEFINED(STACK_SIZE) ? STACK_SIZE : DEFINED(__stack_size__) ? __stack_size__ : 0x2000;
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ENTRY(Reset_Handler)
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/* Section Definitions */
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SECTIONS
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{
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.text :
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{
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. = ALIGN(4);
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_sfixed = .;
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KEEP(*(.vectors .vectors.*))
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*(.text*)
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*(.gnu.linkonce.t.*)
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*(.glue_7t) *(.glue_7)
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*(.rodata .rodata* .gnu.linkonce.r.*)
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*(.ARM.extab* .gnu.linkonce.armextab.*)
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/* Support C constructors, and C destructors in both user code
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and the C library. This also provides support for C++ code. */
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. = ALIGN(4);
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KEEP(*(.init))
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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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. = 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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. = ALIGN(4);
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KEEP (*crtbegin.o(.ctors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*crtend.o(.ctors))
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. = ALIGN(4);
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KEEP(*(.fini))
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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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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*crtend.o(.dtors))
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. = ALIGN(4);
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_efixed = .; /* End of text section */
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} > rom
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/* .ARM.exidx is sorted, so has to go in its own output section. */
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PROVIDE_HIDDEN (__exidx_start = .);
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.ARM.exidx :
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{
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*(.ARM.exidx* .gnu.linkonce.armexidx.*)
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} > rom
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PROVIDE_HIDDEN (__exidx_end = .);
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. = ALIGN(4);
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_etext = .;
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.relocate : AT (_etext)
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{
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. = ALIGN(4);
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_srelocate = .;
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*(.ramfunc .ramfunc.*);
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*(.data .data.*);
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. = ALIGN(4);
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_erelocate = .;
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} > ram
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/* .bss section which is used for uninitialized data */
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.bss (NOLOAD) :
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{
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. = ALIGN(4);
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_sbss = . ;
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_szero = .;
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*(.bss .bss.*)
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*(COMMON)
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. = ALIGN(4);
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_ebss = . ;
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_ezero = .;
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end = .;
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} > ram
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/* stack section */
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.stack (NOLOAD):
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{
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. = ALIGN(8);
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_sstack = .;
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. = . + STACK_SIZE;
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. = ALIGN(8);
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_estack = .;
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} > ram
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. = ALIGN(4);
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_end = . ;
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}
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@ -0,0 +1,142 @@
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* This file is part of the TinyUSB stack.
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*/
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#include "sam.h"
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#include "bsp/board.h"
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#include "hal/include/hal_gpio.h"
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#include "hal/include/hal_init.h"
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#include "hri/hri_nvmctrl_d21.h"
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#include "hpl/gclk/hpl_gclk_base.h"
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#include "hpl_pm_config.h"
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#include "hpl/pm/hpl_pm_base.h"
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM DECLARATION
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//--------------------------------------------------------------------+
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#define LED_PIN 26
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#define BUTTON_PIN 9 // PA4, pin D1 on seeed pinout
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/* Referenced GCLKs, should be initialized firstly */
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#define _GCLK_INIT_1ST (1 << 0 | 1 << 1)
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/* Not referenced GCLKs, initialized last */
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#define _GCLK_INIT_LAST (~_GCLK_INIT_1ST)
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void board_init(void)
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{
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// Clock init ( follow hpl_init.c )
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hri_nvmctrl_set_CTRLB_RWS_bf(NVMCTRL, 2);
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_pm_init();
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_sysctrl_init_sources();
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#if _GCLK_INIT_1ST
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_gclk_init_generators_by_fref(_GCLK_INIT_1ST);
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#endif
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_sysctrl_init_referenced_generators();
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_gclk_init_generators_by_fref(_GCLK_INIT_LAST);
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// Update SystemCoreClock since it is hard coded with asf4 and not correct
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// Init 1ms tick timer (samd SystemCoreClock may not correct)
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SystemCoreClock = CONF_CPU_FREQUENCY;
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SysTick_Config(CONF_CPU_FREQUENCY / 1000);
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// Led init
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gpio_set_pin_direction(LED_PIN, GPIO_DIRECTION_OUT);
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gpio_set_pin_level(LED_PIN, 0);
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// Button init
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gpio_set_pin_direction(BUTTON_PIN, GPIO_DIRECTION_IN);
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gpio_set_pin_pull_mode(BUTTON_PIN, GPIO_PULL_UP);
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#if CFG_TUSB_OS == OPT_OS_FREERTOS
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// If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
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NVIC_SetPriority(USB_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
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#endif
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/* USB Clock init
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* The USB module requires a GCLK_USB of 48 MHz ~ 0.25% clock
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* for low speed and full speed operation. */
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_pm_enable_bus_clock(PM_BUS_APBB, USB);
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_pm_enable_bus_clock(PM_BUS_AHB, USB);
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_gclk_enable_channel(USB_GCLK_ID, GCLK_CLKCTRL_GEN_GCLK0_Val);
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// USB Pin Init
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gpio_set_pin_direction(PIN_PA24, GPIO_DIRECTION_OUT);
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gpio_set_pin_level(PIN_PA24, false);
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gpio_set_pin_pull_mode(PIN_PA24, GPIO_PULL_OFF);
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gpio_set_pin_direction(PIN_PA25, GPIO_DIRECTION_OUT);
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gpio_set_pin_level(PIN_PA25, false);
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gpio_set_pin_pull_mode(PIN_PA25, GPIO_PULL_OFF);
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gpio_set_pin_function(PIN_PA24, PINMUX_PA24G_USB_DM);
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gpio_set_pin_function(PIN_PA25, PINMUX_PA25G_USB_DP);
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}
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//--------------------------------------------------------------------+
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// Board porting API
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//--------------------------------------------------------------------+
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void board_led_write(bool state)
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{
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gpio_set_pin_level(LED_PIN, state);
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}
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uint32_t board_button_read(void)
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{
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// button is active low
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return gpio_get_pin_level(BUTTON_PIN) ? 0 : 1;
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}
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int board_uart_read(uint8_t* buf, int len)
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{
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(void) buf; (void) len;
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return 0;
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}
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int board_uart_write(void const * buf, int len)
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{
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(void) buf; (void) len;
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return 0;
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}
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#if CFG_TUSB_OS == OPT_OS_NONE
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volatile uint32_t system_ticks = 0;
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void SysTick_Handler (void)
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{
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system_ticks++;
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}
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uint32_t board_millis(void)
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{
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return system_ticks;
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}
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#endif
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void HardFault_Handler(void) {
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while(1);
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}
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