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Added Maple RET6 board provided by @skyng22003. Tested and compiles OK, but I'm unable to test as I don't have that hardware

This commit is contained in:
rogerclarkmelbourne 2015-04-30 12:17:08 +10:00
parent 5fd0efa673
commit 0631786008
21 changed files with 1424 additions and 8 deletions
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18
STM32F1/boards.txt
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@ -80,13 +80,14 @@ maple.build.gcc_ver=gcc-arm-none-eabi-4.8.3-2014q1
##############################################################
mapleRET6.name=LeafLabs Maple RET6 to Flash
mapleRET6.upload.tool=maple_upload
mapleRET6.upload.protocol=maple_dfu
mapleRET6.upload.maximum_size=492000
mapleRET6.upload.maximum_size=262144
mapleRET6.upload.use_1200bps_touch=false
mapleRET6.upload.file_type=bin
mapleRET6.upload.ram.maximum_size=61000
mapleRET6.upload.flash.maximum_size=492000
mapleRET6.upload.ram.maximum_size=492152
mapleRET6.upload.flash.maximum_size=262144
mapleRET6.upload.usbID=1EAF:0003
mapleRET6.upload.altID=1
mapleRET6.upload.auto_reset=true
@ -95,13 +96,14 @@ mapleRET6.build.mcu=cortex-m3
mapleRET6.build.f_cpu=72000000L
mapleRET6.build.board=MAPLE_RET6
mapleRET6.build.core=maple
mapleRET6.build.extra_flags=-DMCU_STM32F103RE -mthumb -DSERIAL_USB -march=armv7-m -D__STM32F1__
mapleRET6.build.extra_flags=-DMCU_STM32F103RE -mthumb -march=armv7-m -D__STM32F1__ -DSERIAL_USB
mapleRET6.build.ldscript=ld/stm32f103re-bootloader.ld
mapleRET6.build.variant=maple_ret6
mapleRET6.build.ldscript=ld/flashRET6.ld
mapleRET6.build.variant=maple
mapleRET6.build.variant_system_lib=libmapleRET6.a
mapleRET6.build.vect=VECT_TAB_ADDR=0x8005000
mapleRET6.build.density=STM32_HIGH_DENSITY
mapleRET6.build.error_led_port=GPIOA
mapleRET6.build.error_led_pin=5
mapleRET6.build.gcc_ver=gcc-arm-none-eabi-4.8.3-2014q1

157
STM32F1/variants/maple_ret6/board.cpp Normal file
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@ -0,0 +1,157 @@
/******************************************************************************
* The MIT License
*
* Copyright (c) 2011 LeafLabs, LLC.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*****************************************************************************/
/**
* @file wirish/boards/maple/board.cpp
* @author Marti Bolivar <mbolivar@leaflabs.com>
* @brief Maple board file.
*/
#include <board/board.h> // For this board's header file
#include <wirish_types.h> // For stm32_pin_info and its contents
// (these go into PIN_MAP).
#include "boards_private.h" // For PMAP_ROW(), which makes
// PIN_MAP easier to read.
// boardInit(): nothing special to do for Maple.
//
// When defining your own board.cpp, you can put extra code in this
// function if you have anything you want done on reset, before main()
// or setup() are called.
//
// If there's nothing special you need done, feel free to leave this
// function out, as we do here.
/*
void boardInit(void) {
}
*/
// Pin map: this lets the basic I/O functions (digitalWrite(),
// analogRead(), pwmWrite()) translate from pin numbers to STM32
// peripherals.
//
// PMAP_ROW() lets us specify a row (really a struct stm32_pin_info)
// in the pin map. Its arguments are:
//
// - GPIO device for the pin (GPIOA, etc.)
// - GPIO bit for the pin (0 through 15)
// - Timer device, or NULL if none
// - Timer channel (1 to 4, for PWM), or 0 if none
// - ADC device, or NULL if none
// - ADC channel, or ADCx if none
extern const stm32_pin_info PIN_MAP[BOARD_NR_GPIO_PINS] = {
/*
gpio_dev *gpio_device; GPIO device
timer_dev *timer_device; Pin's timer device, if any.
const adc_dev *adc_device; ADC device, if any.
uint8 gpio_bit; Pin's GPIO port bit.
uint8 timer_channel; Timer channel, or 0 if none.
uint8 adc_channel; Pin ADC channel, or ADCx if none.
uint8 pinMode; mode specific by pinMode call (Roger Clark added to optimize compatibility with Arduino API
*/
/* Top header */
{ GPIOA, TIMER2, ADC1, 3, 4, 3 }, /* D0/PA3 */
{ GPIOA, TIMER2, ADC1, 2, 3, 2 }, /* D1/PA2 */
{ GPIOA, TIMER2, ADC1, 0, 1, 0 }, /* D2/PA0 */
{ GPIOA, TIMER2, ADC1, 1, 2, 1 }, /* D3/PA1 */
{ GPIOB, NULL, NULL, 5, 0, ADCx }, /* D4/PB5 */
{ GPIOB, TIMER4, NULL, 6, 1, ADCx }, /* D5/PB6 */
{ GPIOA, TIMER1, NULL, 8, 1, ADCx }, /* D6/PA8 */
{ GPIOA, TIMER1, NULL, 9, 2, ADCx }, /* D7/PA9 */
{ GPIOA, TIMER1, NULL, 10, 3, ADCx }, /* D8/PA10 */
{ GPIOB, TIMER4, NULL, 7, 2, ADCx }, /* D9/PB7 */
{ GPIOA, NULL, ADC1, 4, 0, 4 }, /* D10/PA4 */
{ GPIOA, TIMER3, ADC1, 7, 2, 7 }, /* D11/PA7 */
{ GPIOA, TIMER3, ADC1, 6, 1, 6 }, /* D12/PA6 */
{ GPIOA, NULL, ADC1, 5, 0, 5 }, /* D13/PA5 (LED) */
{ GPIOB, TIMER4, NULL, 8, 3, ADCx }, /* D14/PB8 */
/* Little header */
{ GPIOC, NULL, ADC1, 0, 0, 10 }, /* D15/PC0 */
{ GPIOC, NULL, ADC1, 1, 0, 11 }, /* D16/PC1 */
{ GPIOC, NULL, ADC1, 2, 0, 12 }, /* D17/PC2 */
{ GPIOC, NULL, ADC1, 3, 0, 13 }, /* D18/PC3 */
{ GPIOC, NULL, ADC1, 4, 0, 14 }, /* D19/PC4 */
{ GPIOC, NULL, ADC1, 5, 0, 15 }, /* D20/PC5 */
/* External header */
{ GPIOC, NULL, NULL, 13, 0, ADCx }, /* D21/PC13 */
{ GPIOC, NULL, NULL, 14, 0, ADCx }, /* D22/PC14 */
{ GPIOC, NULL, NULL, 15, 0, ADCx }, /* D23/PC15 */
{ GPIOB, TIMER4, NULL, 9, 4, ADCx }, /* D24/PB9 */
{ GPIOD, NULL, NULL, 2, 0, ADCx }, /* D25/PD2 */
{ GPIOC, NULL, NULL, 10, 0, ADCx }, /* D26/PC10 */
{ GPIOB, TIMER3, ADC1, 0, 3, 8 }, /* D27/PB0 */
{ GPIOB, TIMER3, ADC1, 1, 4, 9 }, /* D28/PB1 */
{ GPIOB, NULL, NULL, 10, 0, ADCx }, /* D29/PB10 */
{ GPIOB, NULL, NULL, 11, 0, ADCx }, /* D30/PB11 */
{ GPIOB, NULL, NULL, 12, 0, ADCx }, /* D31/PB12 */
{ GPIOB, NULL, NULL, 13, 0, ADCx }, /* D32/PB13 */
{ GPIOB, NULL, NULL, 14, 0, ADCx }, /* D33/PB14 */
{ GPIOB, NULL, NULL, 15, 0, ADCx }, /* D34/PB15 */
{ GPIOC, TIMER8, NULL, 6, 1, ADCx }, /* D35/PC6 */
{ GPIOC, TIMER8, NULL, 7, 2, ADCx }, /* D36/PC7 */
{ GPIOC, TIMER8, NULL, 8, 3, ADCx }, /* D37/PC8 */
{ GPIOC, TIMER8, NULL, 9, 4, ADCx }, /* D38/PC9 (BUT) */
/* JTAG header */
{ GPIOA, NULL, NULL, 13, 0, ADCx }, /* D39/PA13 */
{ GPIOA, NULL, NULL, 14, 0, ADCx }, /* D40/PA14 */
{ GPIOA, NULL, NULL, 15, 0, ADCx }, /* D41/PA15 */
{ GPIOB, NULL, NULL, 3, 0, ADCx }, /* D42/PB3 */
{ GPIOB, NULL, NULL, 4, 0, ADCx }, /* D43/PB4 */
{ GPIOC, NULL, NULL, 11, 0, ADCx }, /* D44/PC11 UART4_RX/SDIO_D3 */
{ GPIOC, NULL, NULL, 12, 0, ADCx }, /* D45/PC12 UART5_TX/SDIO_CK */
{ GPIOD, NULL, NULL, 0, 0, ADCx }, /* PD0 OSC_IN */
{ GPIOD, NULL, NULL, 1, 0, ADCx }, /* PD1 OSC_OUT */
{ GPIOB, NULL, NULL, 2, 0, ADCx }, /* PB2 */
};
/* Basically everything that is defined as having a timer us PWM */
extern const uint8 boardPWMPins[BOARD_NR_PWM_PINS] __FLASH__ = {
PA0,PA1,PA2,PA3,PA6,PA7,PA8,PA9,PA10,PB0,PB1,PB6,PB7,PB8,PB9,PC6,PC7,PC8,PC9
};
/* Basically everything that is defined having ADC */
extern const uint8 boardADCPins[BOARD_NR_ADC_PINS] __FLASH__ = {
PA0,PA1,PA2,PA3,PA4,PA5,PA6,PA7,PB0,PB1,PC0,PC1,PC2,PC3,PC4,PC5
};
/* not sure what this us used for */
extern const uint8 boardUsedPins[BOARD_NR_USED_PINS] __FLASH__ = {
BOARD_JTMS_SWDIO_PIN,
BOARD_JTCK_SWCLK_PIN, BOARD_JTDI_PIN, BOARD_JTDO_PIN, BOARD_NJTRST_PIN
};

120
STM32F1/variants/maple_ret6/board/board.h Normal file
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@ -0,0 +1,120 @@
/******************************************************************************
* The MIT License
*
* Copyright (c) 2011 LeafLabs, LLC.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*****************************************************************************/
/**
* @file maple_RET6.h
* @author Marti Bolivar <mbolivar@leaflabs.com>
* @brief Private include file for Maple RET6 Edition in boards.h
*
* See maple.h for more information on these definitions.
*/
#ifndef _BOARDS_GENERIC_STM32F103R_H_
#define _BOARDS_GENERIC_STM32F103R_H_
/* A few of these values will seem strange given that it's a
* high-density board. */
#define CYCLES_PER_MICROSECOND 72
#define SYSTICK_RELOAD_VAL 71999 /* takes a cycle to reload */
// USARTS
#define BOARD_NR_USARTS 5
#define BOARD_USART1_TX_PIN PA9
#define BOARD_USART1_RX_PIN PA10
#define BOARD_USART2_TX_PIN PA2
#define BOARD_USART2_RX_PIN PA3
#define BOARD_USART3_TX_PIN PB10
#define BOARD_USART3_RX_PIN PB11
#define BOARD_USART4_TX_PIN PC10
#define BOARD_USART4_RX_PIN PC11
#define BOARD_USART5_TX_PIN PC12
#define BOARD_USART5_RX_PIN PD2
/* Note:
*
* SPI3 is unusable due to pin 43 (PB4) and NRST tie-together :(, but
* leave the definitions so as not to clutter things up. This is only
* OK since RET6 Ed. is specifically advertised as a beta board. */
#define BOARD_NR_SPI 3
#define BOARD_SPI1_NSS_PIN PA4
#define BOARD_SPI1_SCK_PIN PA5
#define BOARD_SPI1_MISO_PIN PA6
#define BOARD_SPI1_MOSI_PIN PA7
#define BOARD_SPI2_NSS_PIN PB12
#define BOARD_SPI2_SCK_PIN PB13
#define BOARD_SPI2_MISO_PIN PB14
#define BOARD_SPI2_MOSI_PIN PB15
#define BOARD_SPI3_NSS_PIN PA15
#define BOARD_SPI3_SCK_PIN PB3
#define BOARD_SPI3_MISO_PIN PB4
#define BOARD_SPI3_MOSI_PIN PB5
/* GPIO A to E = 5 * 16 - BOOT1 not used = 79*/
#define BOARD_NR_GPIO_PINS 51
/* Note: NOT 19. The missing one is D38 a.k.a. BOARD_BUTTON_PIN, which
* isn't broken out to a header and is thus unusable for PWM. */
#define BOARD_NR_PWM_PINS 19
#define BOARD_NR_ADC_PINS 16
#define BOARD_NR_USED_PINS 7
#define BOARD_JTMS_SWDIO_PIN 39
#define BOARD_JTCK_SWCLK_PIN 40
#define BOARD_JTDI_PIN 41
#define BOARD_JTDO_PIN 42
#define BOARD_NJTRST_PIN 43
/* USB configuration. BOARD_USB_DISC_DEV is the GPIO port containing
* the USB_DISC pin, and BOARD_USB_DISC_BIT is that pin's bit. */
#define BOARD_USB_DISC_DEV GPIOC
#define BOARD_USB_DISC_BIT 12
/* Pin aliases: these give the GPIO port/bit for each pin as an
* enum. These are optional, but recommended. They make it easier to
* write code using low-level GPIO functionality. */
enum {
PA3, PA2, PA0, PA1, PB5, PB6, PA8, PA9, PA10, PB7, PA4, PA7, PA6, PA5, PB8,
PC0, PC1, PC2, PC3, PC4, PC5, PC13, PC14, PC15, PB9, PD2, PC10, PB0, PB1,
PB10, PB11, PB12, PB13, PB14, PB15, PC6, PC7, PC8, PC9, PA13, PA14, PA15,
PB3, PB4, PC11, PC12
};/* Note PB2 is skipped as this is Boot1 and is not going to be much use as its likely to be pulled permanently low */
#endif
//0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
//15 16 17 18 19 20 21 22 23 24 25 26 27 28
//29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

220
STM32F1/variants/maple_ret6/ld/common.inc Normal file
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@ -0,0 +1,220 @@
/*
* Linker script for libmaple.
*
* Original author "lanchon" from ST forums, with modifications by LeafLabs.
*/
OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
/*
* Configure other libraries we want in the link.
*
* libgcc, libc, and libm are common across supported toolchains.
* However, some toolchains require additional archives which aren't
* present everywhere (e.g. ARM's gcc-arm-embedded releases).
*
* To hack around this, we let the build system specify additional
* archives by putting the right extra_libs.inc (in a directory under
* toolchains/) in our search path.
*/
GROUP(libgcc.a libc.a libm.a)
INCLUDE extra_libs.inc
/*
* These force the linker to search for vector table symbols.
*
* These symbols vary by STM32 family (and also within families).
* It's up to the build system to configure the link's search path
* properly for the target MCU.
*/
INCLUDE vector_symbols.inc
/* STM32 vector table. */
EXTERN(__stm32_vector_table)
/* C runtime initialization function. */
EXTERN(start_c)
/* main entry point */
EXTERN(main)
/* Initial stack pointer value. */
EXTERN(__msp_init)
PROVIDE(__msp_init = ORIGIN(ram) + LENGTH(ram));
/* Reset vector and chip reset entry point */
EXTERN(__start__)
ENTRY(__start__)
PROVIDE(__exc_reset = __start__);
/* Heap boundaries, for libmaple */
EXTERN(_lm_heap_start);
EXTERN(_lm_heap_end);
SECTIONS
{
.text :
{
__text_start__ = .;
/*
* STM32 vector table. Leave this here. Yes, really.
*/
*(.stm32.interrupt_vector)
/*
* Program code and vague linking
*/
*(.text .text.* .gnu.linkonce.t.*)
*(.plt)
*(.gnu.warning)
*(.glue_7t) *(.glue_7) *(.vfp11_veneer)
*(.ARM.extab* .gnu.linkonce.armextab.*)
*(.gcc_except_table)
*(.eh_frame_hdr)
*(.eh_frame)
. = 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))
} > REGION_TEXT
/*
* End of text
*/
.text.align :
{
. = ALIGN(8);
__text_end__ = .;
} > REGION_TEXT
/*
* .ARM.exidx exception unwinding; mandated by ARM's C++ ABI
*/
__exidx_start = .;
.ARM.exidx :
{
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
} > REGION_RODATA
__exidx_end = .;
/*
* .data
*/
.data :
{
__data_start__ = .;
LONG(0)
. = ALIGN(8);
*(.got.plt) *(.got)
*(.data .data.* .gnu.linkonce.d.*)
. = ALIGN(8);
__data_end__ = .;
} > REGION_DATA AT> REGION_RODATA
/*
* Read-only data
*/
.rodata :
{
*(.rodata .rodata.* .gnu.linkonce.r.*)
/* .USER_FLASH: We allow users to allocate into Flash here */
*(.USER_FLASH)
/* ROM image configuration; for C startup */
. = ALIGN(4);
_lm_rom_img_cfgp = .;
LONG(LOADADDR(.data));
/*
* Heap: Linker scripts may choose a custom heap by overriding
* _lm_heap_start and _lm_heap_end. Otherwise, the heap is in
* internal SRAM, beginning after .bss, and growing towards
* the stack.
*
* I'm shoving these here naively; there's probably a cleaner way
* to go about this. [mbolivar]
*/
_lm_heap_start = DEFINED(_lm_heap_start) ? _lm_heap_start : _end;
_lm_heap_end = DEFINED(_lm_heap_end) ? _lm_heap_end : __msp_init;
} > REGION_RODATA
/*
* .bss
*/
.bss :
{
. = ALIGN(8);
__bss_start__ = .;
*(.bss .bss.* .gnu.linkonce.b.*)
*(COMMON)
. = ALIGN (8);
__bss_end__ = .;
_end = __bss_end__;
} > REGION_BSS
/*
* Debugging sections
*/
.stab 0 (NOLOAD) : { *(.stab) }
.stabstr 0 (NOLOAD) : { *(.stabstr) }
/* DWARF debug sections.
* Symbols in the DWARF debugging sections are relative to the beginning
* of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
.note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
.ARM.attributes 0 : { KEEP (*(.ARM.attributes)) }
/DISCARD/ : { *(.note.GNU-stack) }
}

7
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/*
* Extra archives needed by ARM's GCC ARM Embedded arm-none-eabi-
* releases (https://launchpad.net/gcc-arm-embedded/).
*/
/* This is for the provided newlib. */
GROUP(libnosys.a)

26
STM32F1/variants/maple_ret6/ld/flash.ld Normal file
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/*
* libmaple linker script for "Flash" builds.
*
* A Flash build puts .text (and .rodata) in Flash, and
* .data/.bss/heap (of course) in SRAM, but offsets the sections by
* enough space to store the Maple bootloader, which lives in low
* Flash and uses low memory.
*/
/*
* This pulls in the appropriate MEMORY declaration from the right
* subdirectory of stm32/mem/ (the environment must call ld with the
* right include directory flags to make this happen). Boards can also
* use this file to use any of libmaple's memory-related hooks (like
* where the heap should live).
*/
INCLUDE mem-flash.inc
/* Provide memory region aliases for common.inc */
REGION_ALIAS("REGION_TEXT", rom);
REGION_ALIAS("REGION_DATA", ram);
REGION_ALIAS("REGION_BSS", ram);
REGION_ALIAS("REGION_RODATA", rom);
/* Let common.inc handle the real work. */
INCLUDE common.inc

31
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/*
* libmaple linker script for "JTAG" builds.
*
* A "JTAG" build puts .text (and .rodata) in Flash, and
* .data/.bss/heap (of course) in SRAM, but links starting at the
* Flash and SRAM starting addresses (0x08000000 and 0x20000000
* respectively). This will wipe out a Maple bootloader if there's one
* on the board, so only use this if you know what you're doing.
*
* Of course, a "JTAG" build is perfectly usable for upload over SWD,
* the system memory bootloader, etc. The name is just a historical
* artifact.
*/
/*
* This pulls in the appropriate MEMORY declaration from the right
* subdirectory of stm32/mem/ (the environment must call ld with the
* right include directory flags to make this happen). Boards can also
* use this file to use any of libmaple's memory-related hooks (like
* where the heap should live).
*/
INCLUDE mem-jtag.inc
/* Provide memory region aliases for common.inc */
REGION_ALIAS("REGION_TEXT", rom);
REGION_ALIAS("REGION_DATA", ram);
REGION_ALIAS("REGION_BSS", ram);
REGION_ALIAS("REGION_RODATA", rom);
/* Let common.inc handle the real work. */
INCLUDE common.inc

5
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MEMORY
{
ram (rwx) : ORIGIN = 0x20000C00, LENGTH = 61K
rom (rx) : ORIGIN = 0x08005000, LENGTH = 492K
}

5
STM32F1/variants/maple_ret6/ld/mem-jtag.inc Normal file
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@ -0,0 +1,5 @@
MEMORY
{
ram (rwx) : ORIGIN = 0x20000000, LENGTH = 64K
rom (rx) : ORIGIN = 0x08000000, LENGTH = 512K
}

5
STM32F1/variants/maple_ret6/ld/mem-ram.inc Normal file
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@ -0,0 +1,5 @@
MEMORY
{
ram (rwx) : ORIGIN = 0x20000C00, LENGTH = 61K
rom (rx) : ORIGIN = 0x08005000, LENGTH = 0K
}

25
STM32F1/variants/maple_ret6/ld/ram.ld Normal file
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@ -0,0 +1,25 @@
/*
* libmaple linker script for RAM builds.
*
* A Flash build puts .text, .rodata, and .data/.bss/heap (of course)
* in SRAM, but offsets the sections by enough space to store the
* Maple bootloader, which uses low memory.
*/
/*
* This pulls in the appropriate MEMORY declaration from the right
* subdirectory of stm32/mem/ (the environment must call ld with the
* right include directory flags to make this happen). Boards can also
* use this file to use any of libmaple's memory-related hooks (like
* where the heap should live).
*/
INCLUDE mem-ram.inc
/* Provide memory region aliases for common.inc */
REGION_ALIAS("REGION_TEXT", ram);
REGION_ALIAS("REGION_DATA", ram);
REGION_ALIAS("REGION_BSS", ram);
REGION_ALIAS("REGION_RODATA", ram);
/* Let common.inc handle the real work. */
INCLUDE common.inc

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/*
* libmaple linker script for "JTAG" builds.
*
* A "JTAG" build puts .text (and .rodata) in Flash, and
* .data/.bss/heap (of course) in SRAM, but links starting at the
* Flash and SRAM starting addresses (0x08000000 and 0x20000000
* respectively). This will wipe out a Maple bootloader if there's one
* on the board, so only use this if you know what you're doing.
*
* Of course, a "JTAG" build is perfectly usable for upload over SWD,
* the system memory bootloader, etc. The name is just a historical
* artifact.
*/
/*
* This pulls in the appropriate MEMORY declaration from the right
* subdirectory of stm32/mem/ (the environment must call ld with the
* right include directory flags to make this happen). Boards can also
* use this file to use any of libmaple's memory-related hooks (like
* where the heap should live).
*/
MEMORY
{
ram (rwx) : ORIGIN = 0x20000C00, LENGTH = 61K
rom (rx) : ORIGIN = 0x08005000, LENGTH = 492K
}
/* Provide memory region aliases for common.inc */
REGION_ALIAS("REGION_TEXT", rom);
REGION_ALIAS("REGION_DATA", ram);
REGION_ALIAS("REGION_BSS", ram);
REGION_ALIAS("REGION_RODATA", rom);
/* Let common.inc handle the real work. */
INCLUDE common.inc

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/*
* libmaple linker script for "JTAG" builds.
*
* A "JTAG" build puts .text (and .rodata) in Flash, and
* .data/.bss/heap (of course) in SRAM, but links starting at the
* Flash and SRAM starting addresses (0x08000000 and 0x20000000
* respectively). This will wipe out a Maple bootloader if there's one
* on the board, so only use this if you know what you're doing.
*
* Of course, a "JTAG" build is perfectly usable for upload over SWD,
* the system memory bootloader, etc. The name is just a historical
* artifact.
*/
/*
* This pulls in the appropriate MEMORY declaration from the right
* subdirectory of stm32/mem/ (the environment must call ld with the
* right include directory flags to make this happen). Boards can also
* use this file to use any of libmaple's memory-related hooks (like
* where the heap should live).
*/
MEMORY
{
ram (rwx) : ORIGIN = 0x20000000, LENGTH = 64K
rom (rx) : ORIGIN = 0x08000000, LENGTH = 512K
}
/* Provide memory region aliases for common.inc */
REGION_ALIAS("REGION_TEXT", rom);
REGION_ALIAS("REGION_DATA", ram);
REGION_ALIAS("REGION_BSS", ram);
REGION_ALIAS("REGION_RODATA", rom);
/* Let common.inc handle the real work. */
INCLUDE common.inc

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EXTERN(__msp_init)
EXTERN(__exc_reset)
EXTERN(__exc_nmi)
EXTERN(__exc_hardfault)
EXTERN(__exc_memmanage)
EXTERN(__exc_busfault)
EXTERN(__exc_usagefault)
EXTERN(__stm32reservedexception7)
EXTERN(__stm32reservedexception8)
EXTERN(__stm32reservedexception9)
EXTERN(__stm32reservedexception10)
EXTERN(__exc_svc)
EXTERN(__exc_debug_monitor)
EXTERN(__stm32reservedexception13)
EXTERN(__exc_pendsv)
EXTERN(__exc_systick)
EXTERN(__irq_wwdg)
EXTERN(__irq_pvd)
EXTERN(__irq_tamper)
EXTERN(__irq_rtc)
EXTERN(__irq_flash)
EXTERN(__irq_rcc)
EXTERN(__irq_exti0)
EXTERN(__irq_exti1)
EXTERN(__irq_exti2)
EXTERN(__irq_exti3)
EXTERN(__irq_exti4)
EXTERN(__irq_dma1_channel1)
EXTERN(__irq_dma1_channel2)
EXTERN(__irq_dma1_channel3)
EXTERN(__irq_dma1_channel4)
EXTERN(__irq_dma1_channel5)
EXTERN(__irq_dma1_channel6)
EXTERN(__irq_dma1_channel7)
EXTERN(__irq_adc)
EXTERN(__irq_usb_hp_can_tx)
EXTERN(__irq_usb_lp_can_rx0)
EXTERN(__irq_can_rx1)
EXTERN(__irq_can_sce)
EXTERN(__irq_exti9_5)
EXTERN(__irq_tim1_brk)
EXTERN(__irq_tim1_up)
EXTERN(__irq_tim1_trg_com)
EXTERN(__irq_tim1_cc)
EXTERN(__irq_tim2)
EXTERN(__irq_tim3)
EXTERN(__irq_tim4)
EXTERN(__irq_i2c1_ev)
EXTERN(__irq_i2c1_er)
EXTERN(__irq_i2c2_ev)
EXTERN(__irq_i2c2_er)
EXTERN(__irq_spi1)
EXTERN(__irq_spi2)
EXTERN(__irq_usart1)
EXTERN(__irq_usart2)
EXTERN(__irq_usart3)
EXTERN(__irq_exti15_10)
EXTERN(__irq_rtcalarm)
EXTERN(__irq_usbwakeup)
EXTERN(__irq_tim8_brk)
EXTERN(__irq_tim8_up)
EXTERN(__irq_tim8_trg_com)
EXTERN(__irq_tim8_cc)
EXTERN(__irq_adc3)
EXTERN(__irq_fsmc)
EXTERN(__irq_sdio)
EXTERN(__irq_tim5)
EXTERN(__irq_spi3)
EXTERN(__irq_uart4)
EXTERN(__irq_uart5)
EXTERN(__irq_tim6)
EXTERN(__irq_tim7)
EXTERN(__irq_dma2_channel1)
EXTERN(__irq_dma2_channel2)
EXTERN(__irq_dma2_channel3)
EXTERN(__irq_dma2_channel4_5)

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// API compatibility
#include "variant.h"

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#ifndef _VARIANT_ARDUINO_STM32_
#define _VARIANT_ARDUINO_STM32_
#define digitalPinToPort(P) ( PIN_MAP[P].gpio_device )
#define digitalPinToBitMask(P) ( BIT(PIN_MAP[P].gpio_bit) )
#define portOutputRegister(port) ( &(port->regs->ODR) )
#define portInputRegister(port) ( &(port->regs->IDR) )
#define portSetRegister(pin) ( &(PIN_MAP[pin].gpio_device->regs->BSRR) )
#define portClearRegister(pin) ( &(PIN_MAP[pin].gpio_device->regs->BRR) )
#define portConfigRegister(pin) ( &(PIN_MAP[pin].gpio_device->regs->CRL) )
#endif /* _VARIANT_ARDUINO_STM32_ */

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/******************************************************************************
* The MIT License
*
* Copyright (c) 2010 Perry Hung.
* Copyright (c) 2011, 2012 LeafLabs, LLC.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*****************************************************************************/
/**
* @file wirish/boards.cpp
* @brief init() and board routines.
*
* This file is mostly interesting for the init() function, which
* configures Flash, the core clocks, and a variety of other available
* peripherals on the board so the rest of Wirish doesn't have to turn
* things on before using them.
*
* Prior to returning, init() calls boardInit(), which allows boards
* to perform any initialization they need to. This file includes a
* weak no-op definition of boardInit(), so boards that don't need any
* special initialization don't have to define their own.
*
* How init() works is chip-specific. See the boards_setup.cpp files
* under e.g. wirish/stm32f1/, wirish/stmf32f2 for the details, but be
* advised: their contents are unstable, and can/will change without
* notice.
*/
#include <boards.h>
#include <libmaple/libmaple_types.h>
#include <libmaple/flash.h>
#include <libmaple/nvic.h>
#include <libmaple/systick.h>
#include "boards_private.h"
static void setup_flash(void);
static void setup_clocks(void);
static void setup_nvic(void);
static void setup_adcs(void);
static void setup_timers(void);
/*
* Exported functions
*/
void init(void) {
setup_flash();
setup_clocks();
setup_nvic();
systick_init(SYSTICK_RELOAD_VAL);
wirish::priv::board_setup_gpio();
setup_adcs();
setup_timers();
wirish::priv::board_setup_usb();
wirish::priv::series_init();
boardInit();
}
/* Provide a default no-op boardInit(). */
__weak void boardInit(void) {
}
/* You could farm this out to the files in boards/ if e.g. it takes
* too long to test on boards with lots of pins. */
bool boardUsesPin(uint8 pin) {
for (int i = 0; i < BOARD_NR_USED_PINS; i++) {
if (pin == boardUsedPins[i]) {
return true;
}
}
return false;
}
/*
* Auxiliary routines
*/
static void setup_flash(void) {
// Turn on as many Flash "go faster" features as
// possible. flash_enable_features() just ignores any flags it
// can't support.
flash_enable_features(FLASH_PREFETCH | FLASH_ICACHE | FLASH_DCACHE);
// Configure the wait states, assuming we're operating at "close
// enough" to 3.3V.
flash_set_latency(FLASH_SAFE_WAIT_STATES);
}
static void setup_clocks(void) {
// Turn on HSI. We'll switch to and run off of this while we're
// setting up the main PLL.
rcc_turn_on_clk(RCC_CLK_HSI);
// Turn off and reset the clock subsystems we'll be using, as well
// as the clock security subsystem (CSS). Note that resetting CFGR
// to its default value of 0 implies a switch to HSI for SYSCLK.
RCC_BASE->CFGR = 0x00000000;
rcc_disable_css();
rcc_turn_off_clk(RCC_CLK_PLL);
rcc_turn_off_clk(RCC_CLK_HSE);
wirish::priv::board_reset_pll();
// Clear clock readiness interrupt flags and turn off clock
// readiness interrupts.
RCC_BASE->CIR = 0x00000000;
// Enable HSE, and wait until it's ready.
rcc_turn_on_clk(RCC_CLK_HSE);
while (!rcc_is_clk_ready(RCC_CLK_HSE))
;
// Configure AHBx, APBx, etc. prescalers and the main PLL.
wirish::priv::board_setup_clock_prescalers();
rcc_configure_pll(&wirish::priv::w_board_pll_cfg);
// Enable the PLL, and wait until it's ready.
rcc_turn_on_clk(RCC_CLK_PLL);
while(!rcc_is_clk_ready(RCC_CLK_PLL))
;
// Finally, switch to the now-ready PLL as the main clock source.
rcc_switch_sysclk(RCC_CLKSRC_PLL);
}
/*
* These addresses are where usercode starts when a bootloader is
* present. If no bootloader is present, the user NVIC usually starts
* at the Flash base address, 0x08000000.
*/
#if defined(BOOTLOADER_maple)
#define USER_ADDR_ROM 0x08005000
#else
#if defined(BOOTLOADER_robotis)
#define USER_ADDR_ROM 0x08003000
#else
#define USER_ADDR_ROM 0x08000000
#endif
#endif
#define USER_ADDR_RAM 0x20000C00
extern char __text_start__;
static void setup_nvic(void) {
nvic_init((uint32)VECT_TAB_ADDR, 0);
/* Roger Clark. We now control nvic vector table in boards.txt using the build.vect paramater
#ifdef VECT_TAB_FLASH
nvic_init(USER_ADDR_ROM, 0);
#elif defined VECT_TAB_RAM
nvic_init(USER_ADDR_RAM, 0);
#elif defined VECT_TAB_BASE
nvic_init((uint32)0x08000000, 0);
#elif defined VECT_TAB_ADDR
// A numerically supplied value
nvic_init((uint32)VECT_TAB_ADDR, 0);
#else
// Use the __text_start__ value from the linker script; this
// should be the start of the vector table.
nvic_init((uint32)&__text_start__, 0);
#endif
*/
}
static void adc_default_config(const adc_dev *dev) {
adc_enable_single_swstart(dev);
adc_set_sample_rate(dev, wirish::priv::w_adc_smp);
}
static void setup_adcs(void) {
adc_set_prescaler(wirish::priv::w_adc_pre);
adc_foreach(adc_default_config);
}
static void timer_default_config(timer_dev *dev) {
timer_adv_reg_map *regs = (dev->regs).adv;
const uint16 full_overflow = 0xFFFF;
const uint16 half_duty = 0x8FFF;
timer_init(dev);
timer_pause(dev);
regs->CR1 = TIMER_CR1_ARPE;
regs->PSC = 1;
regs->SR = 0;
regs->DIER = 0;
regs->EGR = TIMER_EGR_UG;
switch (dev->type) {
case TIMER_ADVANCED:
regs->BDTR = TIMER_BDTR_MOE | TIMER_BDTR_LOCK_OFF;
// fall-through
case TIMER_GENERAL:
timer_set_reload(dev, full_overflow);
for (uint8 channel = 1; channel <= 4; channel++) {
if (timer_has_cc_channel(dev, channel)) {
timer_set_compare(dev, channel, half_duty);
timer_oc_set_mode(dev, channel, TIMER_OC_MODE_PWM_1,
TIMER_OC_PE);
}
}
// fall-through
case TIMER_BASIC:
break;
}
timer_generate_update(dev);
timer_resume(dev);
}
static void setup_timers(void) {
timer_foreach(timer_default_config);
}

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/******************************************************************************
* The MIT License
*
* Copyright (c) 2012 LeafLabs, LLC.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*****************************************************************************/
/**
* @file wirish/stm32f1/boards_setup.cpp
* @author Marti Bolivar <mbolivar@leaflabs.com>
* @brief STM32F1 chip setup.
*
* This file controls how init() behaves on the STM32F1. Be very
* careful when changing anything here. Many of these values depend
* upon each other.
*/
#include "boards_private.h"
#include <libmaple/gpio.h>
#include <libmaple/timer.h>
#include <boards.h>
#include <usb_serial.h>
// Allow boards to provide a PLL multiplier. This is useful for
// e.g. STM32F100 value line MCUs, which use slower multipliers.
// (We're leaving the default to RCC_PLLMUL_9 for now, since that
// works for F103 performance line MCUs, which is all that LeafLabs
// currently officially supports).
#ifndef BOARD_RCC_PLLMUL
#define BOARD_RCC_PLLMUL RCC_PLLMUL_9
#endif
namespace wirish {
namespace priv {
static stm32f1_rcc_pll_data pll_data = {BOARD_RCC_PLLMUL};
__weak rcc_pll_cfg w_board_pll_cfg = {RCC_PLLSRC_HSE, &pll_data};
__weak adc_prescaler w_adc_pre = ADC_PRE_PCLK2_DIV_6;
__weak adc_smp_rate w_adc_smp = ADC_SMPR_55_5;
__weak void board_reset_pll(void) {
// TODO
}
__weak void board_setup_clock_prescalers(void) {
rcc_set_prescaler(RCC_PRESCALER_AHB, RCC_AHB_SYSCLK_DIV_1);
rcc_set_prescaler(RCC_PRESCALER_APB1, RCC_APB1_HCLK_DIV_2);
rcc_set_prescaler(RCC_PRESCALER_APB2, RCC_APB2_HCLK_DIV_1);
}
__weak void board_setup_gpio(void) {
gpio_init_all();
}
__weak void board_setup_usb(void) {
#if BOARD_HAVE_SERIALUSB
#ifdef SERIAL_USB
Serial.begin();// Roger Clark. Changed SerialUSB to Serial for Arduino sketch compatibility
#endif
#endif
}
__weak void series_init(void) {
// Initialize AFIO here, too, so peripheral remaps and external
// interrupts work out of the box.
afio_init();
}
}
}

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/******************************************************************************
* The MIT License
*
* Copyright (c) 2011 LeafLabs, LLC.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*****************************************************************************/
/*
* This file is a modified version of a file obtained from
* CodeSourcery Inc. (now part of Mentor Graphics Corp.), in which the
* following text appeared:
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
.text
.code 16
.thumb_func
.globl __start__
.type __start__, %function
__start__:
.fnstart
ldr r1,=__msp_init
mov sp,r1
ldr r1,=start_c
bx r1
.pool
.cantunwind
.fnend

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/******************************************************************************
* The MIT License
*
* Copyright (c) 2011 LeafLabs, LLC.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*****************************************************************************/
/*
* This file is a modified version of a file obtained from
* CodeSourcery Inc. (now part of Mentor Graphics Corp.), in which the
* following text appeared:
*
* Copyright (c) 2006, 2007 CodeSourcery Inc
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include <stddef.h>
extern void __libc_init_array(void);
extern int main(int, char**, char**);
extern void exit(int) __attribute__((noreturn, weak));
/* The linker must ensure that these are at least 4-byte aligned. */
extern char __data_start__, __data_end__;
extern char __bss_start__, __bss_end__;
struct rom_img_cfg {
int *img_start;
};
extern char _lm_rom_img_cfgp;
void __attribute__((noreturn)) start_c(void) {
struct rom_img_cfg *img_cfg = (struct rom_img_cfg*)&_lm_rom_img_cfgp;
int *src = img_cfg->img_start;
int *dst = (int*)&__data_start__;
int exit_code;
/* Initialize .data, if necessary. */
if (src != dst) {
int *end = (int*)&__data_end__;
while (dst < end) {
*dst++ = *src++;
}
}
/* Zero .bss. */
dst = (int*)&__bss_start__;
while (dst < (int*)&__bss_end__) {
*dst++ = 0;
}
/* Run initializers. */
__libc_init_array();
/* Jump to main. */
exit_code = main(0, 0, 0);
if (exit) {
exit(exit_code);
}
/* If exit is NULL, make sure we don't return. */
for (;;)
continue;
}

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/******************************************************************************
* The MIT License
*
* Copyright (c) 2010 Perry Hung.
* Copyright (c) 2011, 2012 LeafLabs, LLC.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*****************************************************************************/
/**
* @file wirish/syscalls.c
* @brief newlib stubs
*
* Low level system routines used by newlib for basic I/O and memory
* allocation. You can override most of these.
*/
#include <libmaple/libmaple.h>
#include <sys/stat.h>
#include <errno.h>
#include <stddef.h>
/* If CONFIG_HEAP_START (or CONFIG_HEAP_END) isn't defined, then
* assume _lm_heap_start (resp. _lm_heap_end) is appropriately set by
* the linker */
#ifndef CONFIG_HEAP_START
extern char _lm_heap_start;
#define CONFIG_HEAP_START ((void *)&_lm_heap_start)
#endif
#ifndef CONFIG_HEAP_END
extern char _lm_heap_end;
#define CONFIG_HEAP_END ((void *)&_lm_heap_end)
#endif
/*
* _sbrk -- Increment the program break.
*
* Get incr bytes more RAM (for use by the heap). malloc() and
* friends call this function behind the scenes.
*/
void *_sbrk(int incr) {
static void * pbreak = NULL; /* current program break */
void * ret;
if (pbreak == NULL) {
pbreak = CONFIG_HEAP_START;
}
if ((CONFIG_HEAP_END - pbreak < incr) ||
(pbreak - CONFIG_HEAP_START < -incr)) {
errno = ENOMEM;
return (void *)-1;
}
ret = pbreak;
pbreak += incr;
return ret;
}
__weak int _open(const char *path, int flags, ...) {
return 1;
}
__weak int _close(int fd) {
return 0;
}
__weak int _fstat(int fd, struct stat *st) {
st->st_mode = S_IFCHR;
return 0;
}
__weak int _isatty(int fd) {
return 1;
}
__weak int isatty(int fd) {
return 1;
}
__weak int _lseek(int fd, off_t pos, int whence) {
return -1;
}
__weak unsigned char getch(void) {
return 0;
}
__weak int _read(int fd, char *buf, size_t cnt) {
*buf = getch();
return 1;
}
__weak void putch(unsigned char c) {
}
__weak void cgets(char *s, int bufsize) {
char *p;
int c;
int i;
for (i = 0; i < bufsize; i++) {
*(s+i) = 0;
}
// memset(s, 0, bufsize);
p = s;
for (p = s; p < s + bufsize-1;) {
c = getch();
switch (c) {
case '\r' :
case '\n' :
putch('\r');
putch('\n');
*p = '\n';
return;
case '\b' :
if (p > s) {
*p-- = 0;
putch('\b');
putch(' ');
putch('\b');
}
break;
default :
putch(c);
*p++ = c;
break;
}
}
return;
}
__weak int _write(int fd, const char *buf, size_t cnt) {
int i;
for (i = 0; i < cnt; i++)
putch(buf[i]);
return cnt;
}
/* Override fgets() in newlib with a version that does line editing */
__weak char *fgets(char *s, int bufsize, void *f) {
cgets(s, bufsize);
return s;
}
__weak void _exit(int exitcode) {
while (1)
;
}