git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@35 35acf78f-673a-0410-8e92-d51de3d6d3f4
gdisirio
parent
c069c0d1f9
commit
f44731e0c0
|
|
@ -0,0 +1,180 @@
|
||||||
|
#
|
||||||
|
# !!!! Do NOT edit this makefile with an editor which replace tabs by spaces !!!!
|
||||||
|
#
|
||||||
|
##############################################################################################
|
||||||
|
#
|
||||||
|
# On command line:
|
||||||
|
#
|
||||||
|
# make all = Create project
|
||||||
|
#
|
||||||
|
# make clean = Clean project files.
|
||||||
|
#
|
||||||
|
# To rebuild project do "make clean" and "make all".
|
||||||
|
#
|
||||||
|
|
||||||
|
##############################################################################################
|
||||||
|
# Start of default section
|
||||||
|
#
|
||||||
|
|
||||||
|
TRGT = arm-elf-
|
||||||
|
CC = $(TRGT)gcc
|
||||||
|
CP = $(TRGT)objcopy
|
||||||
|
AS = $(TRGT)gcc -x assembler-with-cpp
|
||||||
|
OD = $(TRGT)objdump
|
||||||
|
HEX = $(CP) -O ihex
|
||||||
|
BIN = $(CP) -O binary
|
||||||
|
|
||||||
|
MCU = arm7tdmi
|
||||||
|
|
||||||
|
# List all default C defines here, like -D_DEBUG=1
|
||||||
|
DDEFS =
|
||||||
|
|
||||||
|
# List all default ASM defines here, like -D_DEBUG=1
|
||||||
|
DADEFS =
|
||||||
|
|
||||||
|
# List all default directories to look for include files here
|
||||||
|
DINCDIR =
|
||||||
|
|
||||||
|
# List the default directory to look for the libraries here
|
||||||
|
DLIBDIR =
|
||||||
|
|
||||||
|
# List all default libraries here
|
||||||
|
DLIBS =
|
||||||
|
|
||||||
|
#
|
||||||
|
# End of default section
|
||||||
|
##############################################################################################
|
||||||
|
|
||||||
|
##############################################################################################
|
||||||
|
# Start of user section
|
||||||
|
#
|
||||||
|
|
||||||
|
# Define project name here
|
||||||
|
PROJECT = ch
|
||||||
|
|
||||||
|
# Define linker script file here
|
||||||
|
LDSCRIPT= ch.ld
|
||||||
|
|
||||||
|
# List all user C define here, like -D_DEBUG=1
|
||||||
|
UDEFS =
|
||||||
|
|
||||||
|
# Define ASM defines here
|
||||||
|
UADEFS =
|
||||||
|
|
||||||
|
# List ARM-mode C source files here
|
||||||
|
ASRC = chcore.c main.c buzzer.c \
|
||||||
|
../../test/test.c ../../ports/ARM7-LPC214x/GCC/lpc214x_serial.c \
|
||||||
|
../../src/chinit.c ../../src/chlists.c ../../src/chdelta.c ../../src/chschd.c \
|
||||||
|
../../src/chthreads.c ../../src/chsem.c ../../src/chevents.c ../../src/chmsg.c \
|
||||||
|
../../src/chsleep.c ../../src/chqueues.c ../../src/chserial.c
|
||||||
|
|
||||||
|
# List THUMB-mode C sources here
|
||||||
|
# NOTE: If any module is compiled in thumb mode then -mthumb-interwork is
|
||||||
|
# enabled for all modules and that lowers performance.
|
||||||
|
TSRC =
|
||||||
|
|
||||||
|
# List ASM source files here
|
||||||
|
ASMSRC = crt0.s chcore2.s
|
||||||
|
|
||||||
|
# List all user directories here
|
||||||
|
UINCDIR = ../../src/include ../../ports/ARM7-LPC214x/GCC
|
||||||
|
|
||||||
|
# List the user directory to look for the libraries here
|
||||||
|
ULIBDIR =
|
||||||
|
|
||||||
|
# List all user libraries here
|
||||||
|
ULIBS =
|
||||||
|
|
||||||
|
# ARM-specific options here
|
||||||
|
AOPT =
|
||||||
|
|
||||||
|
# THUMB-specific options here
|
||||||
|
TOPT = -mthumb -D THUMB
|
||||||
|
|
||||||
|
# Common options here
|
||||||
|
# NOTE: -mthumb-interwork increases the code size, remove it if you dont have
|
||||||
|
# Thumb code anywhere in the project.
|
||||||
|
# NOTE: -ffixed-f7 is only needed if you enabled CH_CURRP_REGISTER_CACHE in chconf.h.
|
||||||
|
OPT = -O2 -ggdb -fomit-frame-pointer -fno-strict-aliasing
|
||||||
|
#OPT += -ffixed-f7
|
||||||
|
|
||||||
|
# Define warning options here
|
||||||
|
WARN = -Wall -Wstrict-prototypes
|
||||||
|
|
||||||
|
#
|
||||||
|
# End of user defines
|
||||||
|
##############################################################################################
|
||||||
|
|
||||||
|
INCDIR = $(patsubst %,-I%,$(DINCDIR) $(UINCDIR))
|
||||||
|
LIBDIR = $(patsubst %,-L%,$(DLIBDIR) $(ULIBDIR))
|
||||||
|
DEFS = $(DDEFS) $(UDEFS)
|
||||||
|
ADEFS = $(DADEFS) $(UADEFS)
|
||||||
|
AOBJS = $(ASRC:.c=.o)
|
||||||
|
TOBJS = $(TSRC:.c=.o)
|
||||||
|
OBJS = $(ASMOBJS) $(AOBJS) $(TOBJS)
|
||||||
|
ASMOBJS = $(ASMSRC:.s=.o)
|
||||||
|
LIBS = $(DLIBS) $(ULIBS)
|
||||||
|
MCFLAGS = -mcpu=$(MCU)
|
||||||
|
|
||||||
|
ASFLAGS = $(MCFLAGS) -Wa,-amhls=$(<:.s=.lst) $(ADEFS)
|
||||||
|
CPFLAGS = $(MCFLAGS) $(OPT) $(WARN) -fverbose-asm -Wa,-ahlms=$(<:.c=.lst) $(DEFS)
|
||||||
|
LDFLAGS = $(MCFLAGS) -nostartfiles -T$(LDSCRIPT) -Wl,-Map=$(PROJECT).map,--cref,--no-warn-mismatch $(LIBDIR)
|
||||||
|
ODFLAGS = -x --syms
|
||||||
|
|
||||||
|
ifneq ($(TSRC),)
|
||||||
|
ASFLAGS += -mthumb-interwork -D THUMB_INTERWORK
|
||||||
|
CPFLAGS += -mthumb-interwork -D THUMB_INTERWORK
|
||||||
|
LDFLAGS += -mthumb-interwork
|
||||||
|
endif
|
||||||
|
|
||||||
|
# Generate dependency information
|
||||||
|
CPFLAGS += -MD -MP -MF .dep/$(@F).d
|
||||||
|
|
||||||
|
#
|
||||||
|
# Makefile rules
|
||||||
|
#
|
||||||
|
|
||||||
|
all: $(OBJS) $(PROJECT).elf $(PROJECT).hex $(PROJECT).bin $(PROJECT).dmp
|
||||||
|
|
||||||
|
$(AOBJS) : %.o : %.c
|
||||||
|
$(CC) -c $(CPFLAGS) $(AOPT) -I . $(INCDIR) $< -o $@
|
||||||
|
|
||||||
|
$(TOBJS) : %.o : %.c
|
||||||
|
$(CC) -c $(CPFLAGS) $(TOPT) -I . $(INCDIR) $< -o $@
|
||||||
|
|
||||||
|
$(ASMOBJS) : %.o : %.s
|
||||||
|
$(AS) -c $(ASFLAGS) $< -o $@
|
||||||
|
|
||||||
|
%elf: $(OBJS)
|
||||||
|
$(CC) $(ASMOBJS) $(AOBJS) $(TOBJS) $(LDFLAGS) $(LIBS) -o $@
|
||||||
|
|
||||||
|
%hex: %elf
|
||||||
|
$(HEX) $< $@
|
||||||
|
|
||||||
|
%bin: %elf
|
||||||
|
$(BIN) $< $@
|
||||||
|
|
||||||
|
%dmp: %elf
|
||||||
|
$(OD) $(ODFLAGS) $< > $@
|
||||||
|
|
||||||
|
clean:
|
||||||
|
-rm -f $(OBJS)
|
||||||
|
-rm -f $(PROJECT).elf
|
||||||
|
-rm -f $(PROJECT).dmp
|
||||||
|
-rm -f $(PROJECT).map
|
||||||
|
-rm -f $(PROJECT).hex
|
||||||
|
-rm -f $(PROJECT).bin
|
||||||
|
-rm -f $(ASRC:.c=.c.bak)
|
||||||
|
-rm -f $(ASRC:.c=.lst)
|
||||||
|
-rm -f $(TSRC:.c=.c.bak)
|
||||||
|
-rm -f $(TSRC:.c=.lst)
|
||||||
|
-rm -f $(ASMSRC:.s=.s.bak)
|
||||||
|
-rm -f $(ASMSRC:.s=.lst)
|
||||||
|
-rm -fR .dep
|
||||||
|
|
||||||
|
#
|
||||||
|
# Include the dependency files, should be the last of the makefile
|
||||||
|
#
|
||||||
|
-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
|
||||||
|
|
||||||
|
# *** EOF ***
|
||||||
|
|
@ -0,0 +1,82 @@
|
||||||
|
/*
|
||||||
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
||||||
|
|
||||||
|
This file is part of ChibiOS/RT.
|
||||||
|
|
||||||
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Buzzer driver for Olimex LPC-P2148.
|
||||||
|
* Uses the timer 1 for wave generation and a Virtual Timer for the sound
|
||||||
|
* duration.
|
||||||
|
* The driver also generates an event when the sound is done and the buzzer
|
||||||
|
* goes silent.
|
||||||
|
*/
|
||||||
|
#include <ch.h>
|
||||||
|
|
||||||
|
#include "lpc214x.h"
|
||||||
|
#include "buzzer.h"
|
||||||
|
|
||||||
|
EventSource BuzzerSilentEventSource;
|
||||||
|
|
||||||
|
#define StartCounter(t) ((t)->TC_EMR = 0xF1, (t)->TC_TCR = 1)
|
||||||
|
#define StopCounter(t) ((t)->TC_EMR = 0, (t)->TC_TCR = 2)
|
||||||
|
|
||||||
|
void InitBuzzer(void) {
|
||||||
|
|
||||||
|
chEvtInit(&BuzzerSilentEventSource);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Switches P0.12 and P0.13 to MAT1.0 and MAT1.1 functions.
|
||||||
|
* Enables Timer1 clock.
|
||||||
|
*/
|
||||||
|
PINSEL0 &= 0xF0FFFFFF;
|
||||||
|
PINSEL0 |= 0x0A000000;
|
||||||
|
PCONP = (PCONP & PCALL) | PCTIM1;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Timer setup.
|
||||||
|
*/
|
||||||
|
TC *tc = T1Base;
|
||||||
|
StopCounter(tc);
|
||||||
|
tc->TC_CTCR = 0; // Clock source is PCLK.
|
||||||
|
tc->TC_PR = 0; // Prescaler disabled.
|
||||||
|
tc->TC_MCR = 2; // Clear TC on match MR0.
|
||||||
|
}
|
||||||
|
|
||||||
|
static void stop(void *p) {
|
||||||
|
TC *tc = T1Base;
|
||||||
|
|
||||||
|
StopCounter(tc);
|
||||||
|
chEvtSendI(&BuzzerSilentEventSource);
|
||||||
|
}
|
||||||
|
|
||||||
|
void PlaySound(int freq, t_time duration) {
|
||||||
|
static VirtualTimer bvt;
|
||||||
|
TC *tc = T1Base;
|
||||||
|
|
||||||
|
chSysLock();
|
||||||
|
|
||||||
|
if (bvt.vt_func) { // If a sound is already being played
|
||||||
|
chVTResetI(&bvt); // then aborts it.
|
||||||
|
StopCounter(tc);
|
||||||
|
}
|
||||||
|
|
||||||
|
tc->TC_MR0 = tc->TC_MR1 = (PCLK / (freq * 2));
|
||||||
|
StartCounter(tc);
|
||||||
|
chVTSetI(&bvt, duration, stop, NULL);
|
||||||
|
|
||||||
|
chSysUnlock();
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,28 @@
|
||||||
|
/*
|
||||||
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
||||||
|
|
||||||
|
This file is part of ChibiOS/RT.
|
||||||
|
|
||||||
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef _BUZZER_H_
|
||||||
|
#define _BUZZER_H_
|
||||||
|
|
||||||
|
void InitBuzzer(void);
|
||||||
|
void PlaySound(int freq, t_time duration);
|
||||||
|
|
||||||
|
extern EventSource BuzzerSilentEventSource;
|
||||||
|
|
||||||
|
#endif /* _BUZZER_H_ */
|
||||||
|
|
@ -0,0 +1,85 @@
|
||||||
|
/*
|
||||||
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
||||||
|
|
||||||
|
This file is part of ChibiOS/RT.
|
||||||
|
|
||||||
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/*
|
||||||
|
* LPC2148 memory setup.
|
||||||
|
*/
|
||||||
|
__und_stack_size__ = 0x0004;
|
||||||
|
__abt_stack_size__ = 0x0004;
|
||||||
|
__fiq_stack_size__ = 0x0010;
|
||||||
|
__irq_stack_size__ = 0x0080;
|
||||||
|
__svc_stack_size__ = 0x0004;
|
||||||
|
__sys_stack_size__ = 0x0080;
|
||||||
|
__stacks_total_size__ = __und_stack_size__ + __abt_stack_size__ + __fiq_stack_size__ + __irq_stack_size__ + __svc_stack_size__ + __sys_stack_size__;
|
||||||
|
|
||||||
|
MEMORY
|
||||||
|
{
|
||||||
|
flash : org = 0x00000000, len = 512k - 12k
|
||||||
|
ram : org = 0x40000200, len = 32k - 0x200 - 288
|
||||||
|
}
|
||||||
|
|
||||||
|
__ram_start__ = ORIGIN(ram);
|
||||||
|
__ram_size__ = LENGTH(ram);
|
||||||
|
__ram_end__ = __ram_start__ + __ram_size__;
|
||||||
|
__dma_start__ = 0x7FD00000;
|
||||||
|
__dma_size__ = 8k;
|
||||||
|
__dma_end__ = 0x7FD00000 + __dma_size__;
|
||||||
|
|
||||||
|
SECTIONS
|
||||||
|
{
|
||||||
|
. = 0;
|
||||||
|
|
||||||
|
.text :
|
||||||
|
{
|
||||||
|
_text = .;
|
||||||
|
*(.text);
|
||||||
|
*(.rodata);
|
||||||
|
*(.rodata*);
|
||||||
|
*(.glue_7t);
|
||||||
|
*(.glue_7);
|
||||||
|
. = ALIGN(4);
|
||||||
|
_etext = .;
|
||||||
|
} > flash
|
||||||
|
|
||||||
|
_textdata = _etext;
|
||||||
|
|
||||||
|
.data :
|
||||||
|
{
|
||||||
|
_data = .;
|
||||||
|
*(.data)
|
||||||
|
. = ALIGN(4);
|
||||||
|
_edata = .;
|
||||||
|
} > ram AT > flash
|
||||||
|
|
||||||
|
.bss :
|
||||||
|
{
|
||||||
|
_bss_start = .;
|
||||||
|
*(.bss)
|
||||||
|
. = ALIGN(4);
|
||||||
|
*(COMMON)
|
||||||
|
. = ALIGN(4);
|
||||||
|
_bss_end = .;
|
||||||
|
} > ram
|
||||||
|
}
|
||||||
|
|
||||||
|
PROVIDE(end = .);
|
||||||
|
_end = .;
|
||||||
|
|
||||||
|
__heap_base__ = _end;
|
||||||
|
__heap_end__ = __ram_end__ - __stacks_total_size__;
|
||||||
|
|
@ -0,0 +1,157 @@
|
||||||
|
/*
|
||||||
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
||||||
|
|
||||||
|
This file is part of ChibiOS/RT.
|
||||||
|
|
||||||
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Configuration file for LPC214x-GCC demo project.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @addtogroup Config
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef _CHCONF_H_
|
||||||
|
#define _CHCONF_H_
|
||||||
|
|
||||||
|
/** Configuration option: if specified then time efficient rather than space
|
||||||
|
* efficient code is used when two possible implementations exist, note
|
||||||
|
* that this is not related to the compiler optimization options.*/
|
||||||
|
#define CH_OPTIMIZE_SPEED
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the Virtual Timers subsystem is
|
||||||
|
* included in the kernel.*/
|
||||||
|
#define CH_USE_VIRTUAL_TIMERS
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the System Timer subsystem is
|
||||||
|
* included in the kernel.*/
|
||||||
|
#define CH_USE_SYSTEMTIME
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the \p chThdSleep() function is
|
||||||
|
* included in the kernel.
|
||||||
|
* @note requires \p CH_USE_VIRTUAL_TIMERS.*/
|
||||||
|
#define CH_USE_SLEEP
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the \p chThdResume()
|
||||||
|
* function is included in the kernel.*/
|
||||||
|
#define CH_USE_RESUME
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the \p chThdTerminate()
|
||||||
|
* and \p chThdShouldTerminate() functions are included in the kernel.*/
|
||||||
|
#define CH_USE_TERMINATE
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the \p chThdWait() function
|
||||||
|
* is included in the kernel.*/
|
||||||
|
#define CH_USE_WAITEXIT
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the Semaphores APIs are included
|
||||||
|
* in the kernel.*/
|
||||||
|
#define CH_USE_SEMAPHORES
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the Semaphores atomic Signal+Wait
|
||||||
|
* APIs are included in the kernel.*/
|
||||||
|
#define CH_USE_SEMSW
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the Semaphores with timeout APIs
|
||||||
|
* are included in the kernel.
|
||||||
|
* @note requires \p CH_USE_SEMAPHORES.
|
||||||
|
* @note requires \p CH_USE_VIRTUAL_TIMERS.*/
|
||||||
|
#define CH_USE_SEMAPHORES_TIMEOUT
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the Semaphores APIs with priority
|
||||||
|
* shift are included in the kernel.
|
||||||
|
* @note requires \p CH_USE_SEMAPHORES.*/
|
||||||
|
#define CH_USE_RT_SEMAPHORES
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the Events APIs are included in
|
||||||
|
* the kernel.*/
|
||||||
|
#define CH_USE_EVENTS
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the \p chEvtWaitTimeout()
|
||||||
|
* function is included in the kernel.
|
||||||
|
* @note requires \p CH_USE_EVENTS.
|
||||||
|
* @note requires \p CH_USE_VIRTUAL_TIMERS.*/
|
||||||
|
#define CH_USE_EVENTS_TIMEOUT
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the Synchronous Messages APIs are
|
||||||
|
* included in the kernel.*/
|
||||||
|
#define CH_USE_MESSAGES
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the \p chMsgSendTimeout()
|
||||||
|
* function is included in the kernel.
|
||||||
|
* @note requires \p CH_USE_MESSAGES.
|
||||||
|
* @note requires \p CH_USE_VIRTUAL_TIMERS.*/
|
||||||
|
#define CH_USE_MESSAGES_TIMEOUT
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the \p chMsgSendWithEvent()
|
||||||
|
* function is included in the kernel.
|
||||||
|
* @note requires \p CH_USE_MESSAGES.
|
||||||
|
* @note requires \p CH_USE_VIRTUAL_TIMERS.*/
|
||||||
|
#define CH_USE_MESSAGES_EVENT
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the
|
||||||
|
* \p chThdGetExitEventSource() function is included in the kernel.
|
||||||
|
* @note requires \p CH_USE_MESSAGES.
|
||||||
|
* @note requires \p CH_USE_EVENTS.*/
|
||||||
|
#define CH_USE_EXIT_EVENT
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the I/O queues APIs are included
|
||||||
|
* in the kernel.*/
|
||||||
|
#define CH_USE_QUEUES
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the halfduplex queue APIs are
|
||||||
|
* included in the kernel.*/
|
||||||
|
#define CH_USE_QUEUES_HALFDUPLEX
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the I/O queues with timeout
|
||||||
|
* APIs are included in the kernel.
|
||||||
|
* @note requires \p CH_USE_SEMAPHORES_TIMEOUT.*/
|
||||||
|
#define CH_USE_QUEUES_TIMEOUT
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the full duplex serial driver APIs
|
||||||
|
* are included in the kernel.*/
|
||||||
|
#define CH_USE_SERIAL_FULLDUPLEX
|
||||||
|
|
||||||
|
/** Configuration option: if specified then the half duplex serial driver APIs
|
||||||
|
* are included in the kernel.*/
|
||||||
|
#define CH_USE_SERIAL_HALFDUPLEX
|
||||||
|
|
||||||
|
/** Configuration option: Frequency of the system timer that drives the system
|
||||||
|
* ticks. This also defines the system time unit.*/
|
||||||
|
#define CH_FREQUENCY 1000
|
||||||
|
|
||||||
|
/** Configuration option: This constant is the number of ticks allowed for the
|
||||||
|
* threads before preemption occurs.*/
|
||||||
|
#define CH_TIME_QUANTUM 20
|
||||||
|
|
||||||
|
/** Configuration option: Defines a CPU register to be used as storage for the
|
||||||
|
* global \p currp variable. Caching this variable in a register can greatly
|
||||||
|
* improve both space and time efficiency of the generated code. Another side
|
||||||
|
* effect is that one less register has to be saved during the context switch
|
||||||
|
* resulting in lower RAM usage and faster code.
|
||||||
|
* @note This option is only useable with the GCC compiler and is only useful
|
||||||
|
* on processors with many registers like ARM cores.
|
||||||
|
* @note If this option is enabled then ALL the libraries linked to the
|
||||||
|
* ChibiOS/RT code <b>must</b> be recompiled with the GCC option \p
|
||||||
|
* -ffixed-<reg>.
|
||||||
|
*/
|
||||||
|
//#define CH_CURRP_REGISTER_CACHE "r7"
|
||||||
|
|
||||||
|
#endif /* _CHCONF_H_ */
|
||||||
|
|
||||||
|
/** @} */
|
||||||
|
|
@ -0,0 +1,225 @@
|
||||||
|
/*
|
||||||
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
||||||
|
|
||||||
|
This file is part of ChibiOS/RT.
|
||||||
|
|
||||||
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <ch.h>
|
||||||
|
|
||||||
|
#include "lpc214x.h"
|
||||||
|
#include "lpc214x_serial.h"
|
||||||
|
#include "buzzer.h"
|
||||||
|
|
||||||
|
extern void IrqHandler(void);
|
||||||
|
extern void T0IrqHandler(void);
|
||||||
|
|
||||||
|
#define VAL_TC0_PRESCALER 0
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Pins configuration for Olimex LPC-P2148.
|
||||||
|
*
|
||||||
|
* PINSEL0
|
||||||
|
* P0 P0 P0 P0 P0 P0 RXD TXD SSE MOS MIS SCK SDA SCL RXD TXD
|
||||||
|
* 15 14 13 12 11 10 1 1 L0 I0 O0 0 0 0 0 0
|
||||||
|
* 00 00 00 00 00 00 01 01 01 01 01 01 01 01 01 01
|
||||||
|
* IN IN OUT OUT OUT OUT -- -- -- -- -- -- -- -- -- --
|
||||||
|
* 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0
|
||||||
|
*
|
||||||
|
* PINSEL1
|
||||||
|
* P0 AD P0 P0 -- -- AO -- VB P0 P0 SSE MOS MIS SCK P0
|
||||||
|
* 31 03 29 28 -- -- UT -- US 22 21 L1 I1 O1 1 16
|
||||||
|
* 00 01 00 00 00 00 10 00 01 00 00 10 10 10 10 00
|
||||||
|
* OUT -- OUT OUT -- -- -- -- -- OUT OUT -- -- -- -- IN
|
||||||
|
* 1 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0
|
||||||
|
*
|
||||||
|
* PINSEL2
|
||||||
|
* -- -- -- -- -- -- -- -- -- -- -- -- -- -- GP DBG --
|
||||||
|
* -- -- -- -- -- -- -- -- -- -- -- -- -- -- IO --
|
||||||
|
* 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0 1 00
|
||||||
|
* -- -- -- -- -- -- -- -- -- -- -- -- -- -- IN -- --
|
||||||
|
*/
|
||||||
|
#define VAL_PINSEL0 0x00055555
|
||||||
|
#define VAL_PINSEL1 0x100842A8
|
||||||
|
#define VAL_PINSEL2 0x00000004
|
||||||
|
#define VAL_FIO0DIR 0xB0603C00
|
||||||
|
#define VAL_FIO1DIR 0x00000000
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Hardware initialization goes here.
|
||||||
|
* NOTE: Interrupts are still disabled.
|
||||||
|
*/
|
||||||
|
void hwinit(void) {
|
||||||
|
int i;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* All peripherals clock disabled by default in order to save power.
|
||||||
|
*/
|
||||||
|
PCONP = PCRTC | PCTIM0;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* MAM setup.
|
||||||
|
*/
|
||||||
|
MAMTIM = 0x3; /* 3 cycles for flash accesses. */
|
||||||
|
MAMCR = 0x2; /* MAM fully enabled. */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* PLL setup for Fosc=12MHz and CCLK=48MHz.
|
||||||
|
* P=2 M=3.
|
||||||
|
*/
|
||||||
|
PLL *pll = PLLBase;
|
||||||
|
pll->PLL0_CFG = 0x23; /* P and M values. */
|
||||||
|
pll->PLL0_CON = 0x1; /* Enalbles the PLL 0. */
|
||||||
|
pll->PLL0_FEED = 0xAA;
|
||||||
|
pll->PLL0_FEED = 0x55;
|
||||||
|
while (!(pll->PLL0_STAT & 0x400))
|
||||||
|
; /* Wait for PLL lock. */
|
||||||
|
|
||||||
|
pll->PLL0_CON = 0x3; /* Connects the PLL. */
|
||||||
|
pll->PLL0_FEED = 0xAA;
|
||||||
|
pll->PLL0_FEED = 0x55;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* VPB setup.
|
||||||
|
* PCLK = CCLK / 4.
|
||||||
|
*/
|
||||||
|
VPBDIV = VPD_D4;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* I/O pins configuration.
|
||||||
|
*/
|
||||||
|
PINSEL0 = VAL_PINSEL0;
|
||||||
|
PINSEL1 = VAL_PINSEL1;
|
||||||
|
PINSEL2 = VAL_PINSEL2;
|
||||||
|
IO0DIR = VAL_FIO0DIR;
|
||||||
|
IO0SET = 0xFFFFFFFF;
|
||||||
|
IO1DIR = VAL_FIO1DIR;
|
||||||
|
IO1SET = 0xFFFFFFFF;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Interrupt vectors assignment.
|
||||||
|
* NOTE: Better reset everything in the VIC, it is a HUGE source of trouble.
|
||||||
|
*/
|
||||||
|
VIC *vic = VICBase;
|
||||||
|
vic->VIC_IntSelect = 0;
|
||||||
|
vic->VIC_IntEnable = 0;
|
||||||
|
vic->VIC_VectAddr = 0;
|
||||||
|
for (i = 0; i < 16; i++) {
|
||||||
|
vic->VIC_VectCntls[i] = 0;
|
||||||
|
vic->VIC_VectAddrs[i] = 0;
|
||||||
|
}
|
||||||
|
vic->VIC_DefVectAddr = (IOREG32)IrqHandler;
|
||||||
|
SetVICVector(T0IrqHandler, 0, SOURCE_Timer0);
|
||||||
|
SetVICVector(UART0IrqHandler, 1, SOURCE_UART0);
|
||||||
|
SetVICVector(UART1IrqHandler, 2, SOURCE_UART1);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* System Timer initialization, 1ms intervals.
|
||||||
|
*/
|
||||||
|
vic->VIC_IntEnable |= INTMASK(SOURCE_Timer0);
|
||||||
|
TC *timer = T0Base;
|
||||||
|
timer->TC_PR = VAL_TC0_PRESCALER;
|
||||||
|
timer->TC_MR0 = (PCLK / CH_FREQUENCY) / (VAL_TC0_PRESCALER + 1);
|
||||||
|
timer->TC_MCR = 3; /* Interrupt and clear TC on match MR0. */
|
||||||
|
timer->TC_TCR = 2; /* Reset counter and prescaler. */
|
||||||
|
timer->TC_TCR = 1; /* Timer enabled. */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Other subsystems.
|
||||||
|
*/
|
||||||
|
InitSerial();
|
||||||
|
InitBuzzer();
|
||||||
|
}
|
||||||
|
|
||||||
|
void chSysPause(void) {
|
||||||
|
|
||||||
|
while (TRUE) {
|
||||||
|
// Note, it is disabled because it causes trouble with the JTAG probe.
|
||||||
|
// Enable it in the final code only.
|
||||||
|
// PCON = 1; /* Stops CPU clock until next interrupt. */
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* System halt.
|
||||||
|
* Yellow LED only.
|
||||||
|
*/
|
||||||
|
void chSysHalt(void) {
|
||||||
|
|
||||||
|
chSysLock();
|
||||||
|
IO0SET = 0x80000C00;
|
||||||
|
IO0CLR = 0x80000000;
|
||||||
|
while (TRUE)
|
||||||
|
;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Set a vector for an interrupt source, the vector is enabled too.
|
||||||
|
*/
|
||||||
|
void SetVICVector(void *handler, int vector, int source) {
|
||||||
|
|
||||||
|
VIC *vicp = VICBase;
|
||||||
|
vicp->VIC_VectAddrs[vector] = (IOREG32)handler;
|
||||||
|
vicp->VIC_VectCntls[vector] = (IOREG32)(source | 0x20);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Undefined Instruction exception handler.
|
||||||
|
* Yellow LED + RED LED 2.
|
||||||
|
*/
|
||||||
|
void UndHandler(void) {
|
||||||
|
IO0SET = 0x80000C00;
|
||||||
|
IO0CLR = 0x80000800;
|
||||||
|
while(TRUE)
|
||||||
|
;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Prefetch exception handler.
|
||||||
|
* Yellow LED + RED LED 1.
|
||||||
|
*/
|
||||||
|
void PrefetchHandler(void) {
|
||||||
|
IO0SET = 0x80000C00;
|
||||||
|
IO0CLR = 0x80000400;
|
||||||
|
while(TRUE)
|
||||||
|
;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Abort exception handler.
|
||||||
|
* Yellow LED + both RED LEDs.
|
||||||
|
*/
|
||||||
|
void AbortHandler(void) {
|
||||||
|
IO0SET = 0x80000C00;
|
||||||
|
IO0CLR = 0x80000C00;
|
||||||
|
while(TRUE)
|
||||||
|
;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Non-vectored IRQs handling here.
|
||||||
|
*/
|
||||||
|
void NonVectoredIrq(void) {
|
||||||
|
VICVectAddr = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Timer 0 IRQ handling here.
|
||||||
|
*/
|
||||||
|
void Timer0Irq(void) {
|
||||||
|
chSchTimerHandlerI();
|
||||||
|
T0IR = 1; /* Clear interrupt on match MR0. */
|
||||||
|
VICVectAddr = 0;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,110 @@
|
||||||
|
/*
|
||||||
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
||||||
|
|
||||||
|
This file is part of ChibiOS/RT.
|
||||||
|
|
||||||
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef _CHCORE_H_
|
||||||
|
#define _CHCORE_H_
|
||||||
|
|
||||||
|
/*
|
||||||
|
* The following values are implementation dependent. You may change them in
|
||||||
|
* order to match your HW.
|
||||||
|
*/
|
||||||
|
#define FOSC 12000000
|
||||||
|
#define CCLK 48000000
|
||||||
|
#define PCLK 12000000
|
||||||
|
|
||||||
|
typedef void *regarm;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Stack saved context.
|
||||||
|
*/
|
||||||
|
struct stackregs {
|
||||||
|
regarm r4;
|
||||||
|
regarm r5;
|
||||||
|
regarm r6;
|
||||||
|
#ifndef MK_CURRP_REGISTER_CACHE
|
||||||
|
regarm r7;
|
||||||
|
#endif
|
||||||
|
regarm r8;
|
||||||
|
regarm r9;
|
||||||
|
regarm r10;
|
||||||
|
regarm r11;
|
||||||
|
regarm lr;
|
||||||
|
};
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
struct stackregs *r13;
|
||||||
|
} Context;
|
||||||
|
|
||||||
|
#ifdef MK_CURRP_REGISTER_CACHE
|
||||||
|
#define SETUP_CONTEXT(workspace, wsize, pf, arg) \
|
||||||
|
{ \
|
||||||
|
tp->p_ctx.r13 = (struct stackregs *)((BYTE8 *)workspace + \
|
||||||
|
wsize - \
|
||||||
|
sizeof(struct stackregs)); \
|
||||||
|
tp->p_ctx.r13->r4 = pf; \
|
||||||
|
tp->p_ctx.r13->r5 = arg; \
|
||||||
|
tp->p_ctx.r13->r6 = 0; \
|
||||||
|
tp->p_ctx.r13->r8 = 0; \
|
||||||
|
tp->p_ctx.r13->r9 = 0; \
|
||||||
|
tp->p_ctx.r13->r10 = 0; \
|
||||||
|
tp->p_ctx.r13->r11 = 0; \
|
||||||
|
tp->p_ctx.r13->lr = threadstart; \
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
#define SETUP_CONTEXT(workspace, wsize, pf, arg) \
|
||||||
|
{ \
|
||||||
|
tp->p_ctx.r13 = (struct stackregs *)((BYTE8 *)workspace + \
|
||||||
|
wsize - \
|
||||||
|
sizeof(struct stackregs)); \
|
||||||
|
tp->p_ctx.r13->r4 = pf; \
|
||||||
|
tp->p_ctx.r13->r5 = arg; \
|
||||||
|
tp->p_ctx.r13->r6 = 0; \
|
||||||
|
tp->p_ctx.r13->r7 = 0; \
|
||||||
|
tp->p_ctx.r13->r8 = 0; \
|
||||||
|
tp->p_ctx.r13->r9 = 0; \
|
||||||
|
tp->p_ctx.r13->r10 = 0; \
|
||||||
|
tp->p_ctx.r13->r11 = 0; \
|
||||||
|
tp->p_ctx.r13->lr = threadstart; \
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef THUMB
|
||||||
|
extern void chSysLock(void);
|
||||||
|
extern void chSysUnlock(void);
|
||||||
|
#else /* !THUMB */
|
||||||
|
#define chSysLock() asm("msr CPSR_c, #0x9F")
|
||||||
|
#define chSysUnlock() asm("msr CPSR_c, #0x1F")
|
||||||
|
#endif /* THUMB */
|
||||||
|
|
||||||
|
#define INT_REQUIRED_STACK 0x40 // Must include registers and stack frames.
|
||||||
|
|
||||||
|
#define UserStackSize(n) (sizeof(Thread) + \
|
||||||
|
sizeof(struct stackregs) + (n) + (INT_REQUIRED_STACK))
|
||||||
|
|
||||||
|
void chSysHalt(void) __attribute__((noreturn));
|
||||||
|
void chSysPause(void);
|
||||||
|
void chSysSwitchI(Context *oldp, Context *newp);
|
||||||
|
void threadstart(void);
|
||||||
|
void DefFiqHandler(void);
|
||||||
|
void DefIrqHandler(void);
|
||||||
|
void SpuriousHandler(void);
|
||||||
|
|
||||||
|
void SetVICVector(void *handler, int vector, int source);
|
||||||
|
|
||||||
|
#endif /* _CHCORE_H_ */
|
||||||
|
|
@ -0,0 +1,188 @@
|
||||||
|
/*
|
||||||
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
||||||
|
|
||||||
|
This file is part of ChibiOS/RT.
|
||||||
|
|
||||||
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "chconf.h"
|
||||||
|
|
||||||
|
.set MODE_USR, 0x10
|
||||||
|
.set MODE_FIQ, 0x11
|
||||||
|
.set MODE_IRQ, 0x12
|
||||||
|
.set MODE_SVC, 0x13
|
||||||
|
.set MODE_ABT, 0x17
|
||||||
|
.set MODE_UND, 0x1B
|
||||||
|
.set MODE_SYS, 0x1F
|
||||||
|
|
||||||
|
.equ I_BIT, 0x80
|
||||||
|
.equ F_BIT, 0x40
|
||||||
|
|
||||||
|
.text
|
||||||
|
.code 32
|
||||||
|
.balign 4
|
||||||
|
|
||||||
|
.globl threadstart
|
||||||
|
threadstart:
|
||||||
|
msr CPSR_c, #MODE_SYS
|
||||||
|
mov r0, r5
|
||||||
|
/* blx r4*/
|
||||||
|
mov lr, pc
|
||||||
|
bx r4
|
||||||
|
bl chThdExit
|
||||||
|
|
||||||
|
.globl SwiHandler
|
||||||
|
SwiHandler:
|
||||||
|
b SwiHandler
|
||||||
|
|
||||||
|
.globl DefIrqHandler
|
||||||
|
DefIrqHandler:
|
||||||
|
b DefIrqHandler
|
||||||
|
|
||||||
|
.globl FiqHandler
|
||||||
|
FiqHandler:
|
||||||
|
b FiqHandler
|
||||||
|
|
||||||
|
#ifdef THUMB_INTERWORK
|
||||||
|
.globl chSysLock
|
||||||
|
chSysLock:
|
||||||
|
msr CPSR_c, #0x9F
|
||||||
|
bx lr
|
||||||
|
|
||||||
|
.globl chSysUnlock
|
||||||
|
chSysUnlock:
|
||||||
|
msr CPSR_c, #0x1F
|
||||||
|
bx lr
|
||||||
|
#endif
|
||||||
|
|
||||||
|
.globl chSysSwitchI
|
||||||
|
chSysSwitchI:
|
||||||
|
#ifdef CH_CURRP_REGISTER_CACHE
|
||||||
|
stmfd sp!, {r4, r5, r6, r8, r9, r10, r11, lr}
|
||||||
|
str sp, [r0, #0]
|
||||||
|
ldr sp, [r1, #0]
|
||||||
|
#ifdef THUMB_INTERWORK
|
||||||
|
ldmfd sp!, {r4, r5, r6, r8, r9, r10, r11, lr}
|
||||||
|
bx lr
|
||||||
|
#else
|
||||||
|
ldmfd sp!, {r4, r5, r6, r8, r9, r10, r11, pc}
|
||||||
|
#endif
|
||||||
|
#else
|
||||||
|
stmfd sp!, {r4, r5, r6, r7, r8, r9, r10, r11, lr}
|
||||||
|
str sp, [r0, #0]
|
||||||
|
ldr sp, [r1, #0]
|
||||||
|
#ifdef THUMB_INTERWORK
|
||||||
|
ldmfd sp!, {r4, r5, r6, r7, r8, r9, r10, r11, lr}
|
||||||
|
bx lr
|
||||||
|
#else
|
||||||
|
ldmfd sp!, {r4, r5, r6, r7, r8, r9, r10, r11, pc}
|
||||||
|
#endif
|
||||||
|
#endif /* CH_CURRP_REGISTER_CACHE */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* System stack frame structure after a context switch in the
|
||||||
|
* interrupt handler:
|
||||||
|
*
|
||||||
|
* High +------------+
|
||||||
|
* | R12 | -+
|
||||||
|
* | R3 | |
|
||||||
|
* | R2 | |
|
||||||
|
* | R1 | | External context: IRQ handler frame
|
||||||
|
* | R0 | |
|
||||||
|
* | LR_IRQ | | (user code return address)
|
||||||
|
* | SPSR | -+ (user code status)
|
||||||
|
* | .... | <- mk_DoRescheduleI() stack frame, optimize it for space
|
||||||
|
* | LR | -+ (system code return address)
|
||||||
|
* | R11 | |
|
||||||
|
* | R10 | |
|
||||||
|
* | R9 | |
|
||||||
|
* | R8 | | Internal context: mk_SwitchI() frame
|
||||||
|
* | (R7) | | (optional, see MK_CURRP_REGISTER_CACHE)
|
||||||
|
* | R6 | |
|
||||||
|
* | R5 | |
|
||||||
|
* SP-> | R4 | -+
|
||||||
|
* Low +------------+
|
||||||
|
*/
|
||||||
|
.globl IrqHandler
|
||||||
|
IrqHandler:
|
||||||
|
sub lr, lr, #4
|
||||||
|
stmfd sp!, {r0-r3, r12, lr}
|
||||||
|
mrs r0, SPSR // Workaround for ARM7TDMI+VIC
|
||||||
|
tst r0, #I_BIT // spurious interrupts.
|
||||||
|
ldmnefd sp!, {r0-r3, r12, pc}
|
||||||
|
bl NonVectoredIrq
|
||||||
|
b IrqCommon
|
||||||
|
|
||||||
|
.globl T0IrqHandler
|
||||||
|
T0IrqHandler:
|
||||||
|
sub lr, lr, #4
|
||||||
|
stmfd sp!, {r0-r3, r12, lr}
|
||||||
|
mrs r0, SPSR // Workaround for ARM7TDMI+VIC
|
||||||
|
tst r0, #I_BIT // spurious interrupts.
|
||||||
|
ldmnefd sp!, {r0-r3, r12, pc}^
|
||||||
|
bl Timer0Irq
|
||||||
|
b IrqCommon
|
||||||
|
|
||||||
|
.globl UART0IrqHandler
|
||||||
|
UART0IrqHandler:
|
||||||
|
sub lr, lr, #4
|
||||||
|
stmfd sp!, {r0-r3, r12, lr}
|
||||||
|
mrs r0, SPSR // Workaround for ARM7TDMI+VIC
|
||||||
|
tst r0, #I_BIT // spurious interrupts.
|
||||||
|
ldmnefd sp!, {r0-r3, r12, pc}^
|
||||||
|
bl UART0Irq
|
||||||
|
b IrqCommon
|
||||||
|
|
||||||
|
.globl UART1IrqHandler
|
||||||
|
UART1IrqHandler:
|
||||||
|
sub lr, lr, #4
|
||||||
|
stmfd sp!, {r0-r3, r12, lr}
|
||||||
|
mrs r0, SPSR // Workaround for ARM7TDMI+VIC
|
||||||
|
tst r0, #I_BIT // spurious interrupts.
|
||||||
|
ldmnefd sp!, {r0-r3, r12, pc}^
|
||||||
|
bl UART1Irq
|
||||||
|
b IrqCommon
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Common exit point for all IRQ routines, it performs the rescheduling if
|
||||||
|
* required.
|
||||||
|
*/
|
||||||
|
IrqCommon:
|
||||||
|
bl chSchRescRequiredI
|
||||||
|
cmp r0, #0 // Simply returns if a
|
||||||
|
ldmeqfd sp!, {r0-r3, r12, pc}^ // reschedule is not required.
|
||||||
|
|
||||||
|
// Saves the IRQ mode registers in the system stack.
|
||||||
|
ldmfd sp!, {r0-r3, r12, lr} // IRQ stack now empty.
|
||||||
|
msr CPSR_c, #MODE_SYS | I_BIT
|
||||||
|
stmfd sp!, {r0-r3, r12} // Registers on System Stack.
|
||||||
|
msr CPSR_c, #MODE_IRQ | I_BIT
|
||||||
|
mrs r0, SPSR
|
||||||
|
mov r1, lr
|
||||||
|
msr CPSR_c, #MODE_SYS | I_BIT
|
||||||
|
stmfd sp!, {r0, r1} // Push R0=SPSR, R1=LR_IRQ.
|
||||||
|
|
||||||
|
// Context switch.
|
||||||
|
bl chSchDoRescheduleI
|
||||||
|
|
||||||
|
// Re-establish the IRQ conditions again.
|
||||||
|
ldmfd sp!, {r0, r1} // Pop R0=SPSR, R1=LR_IRQ.
|
||||||
|
msr CPSR_c, #MODE_IRQ | I_BIT
|
||||||
|
msr SPSR_fsxc, r0
|
||||||
|
mov lr, r1
|
||||||
|
msr CPSR_c, #MODE_SYS | I_BIT
|
||||||
|
ldmfd sp!, {r0-r3, r12}
|
||||||
|
msr CPSR_c, #MODE_IRQ | I_BIT
|
||||||
|
subs pc, lr, #0
|
||||||
|
|
@ -0,0 +1,46 @@
|
||||||
|
/*
|
||||||
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
||||||
|
|
||||||
|
This file is part of ChibiOS/RT.
|
||||||
|
|
||||||
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef _CHTYPES_H_
|
||||||
|
#define _CHTYPES_H_
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Generic types often dependant on the compiler.
|
||||||
|
*/
|
||||||
|
#define BOOL char
|
||||||
|
#define BYTE8 unsigned char
|
||||||
|
#define SBYTE8 char
|
||||||
|
#define WORD16 short
|
||||||
|
#define UWORD16 unsigned short
|
||||||
|
#define LONG32 int
|
||||||
|
#define ULONG32 unsigned int
|
||||||
|
|
||||||
|
typedef BYTE8 t_tmode;
|
||||||
|
typedef BYTE8 t_tstate;
|
||||||
|
typedef ULONG32 t_prio;
|
||||||
|
typedef LONG32 t_msg;
|
||||||
|
typedef LONG32 t_eventid;
|
||||||
|
typedef ULONG32 t_eventmask;
|
||||||
|
typedef ULONG32 t_time;
|
||||||
|
typedef LONG32 t_cnt;
|
||||||
|
typedef ULONG32 t_size;
|
||||||
|
|
||||||
|
#define INLINE inline
|
||||||
|
|
||||||
|
#endif /* _CHTYPES_H_ */
|
||||||
|
|
@ -0,0 +1,146 @@
|
||||||
|
/*
|
||||||
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
||||||
|
|
||||||
|
This file is part of ChibiOS/RT.
|
||||||
|
|
||||||
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Generic ARM startup file for ChibiOS/RT.
|
||||||
|
*/
|
||||||
|
|
||||||
|
.extern _main
|
||||||
|
|
||||||
|
.set MODE_USR, 0x10
|
||||||
|
.set MODE_FIQ, 0x11
|
||||||
|
.set MODE_IRQ, 0x12
|
||||||
|
.set MODE_SVC, 0x13
|
||||||
|
.set MODE_ABT, 0x17
|
||||||
|
.set MODE_UND, 0x1B
|
||||||
|
.set MODE_SYS, 0x1F
|
||||||
|
|
||||||
|
.equ I_BIT, 0x80
|
||||||
|
.equ F_BIT, 0x40
|
||||||
|
|
||||||
|
.text
|
||||||
|
.code 32
|
||||||
|
.balign 4
|
||||||
|
/*
|
||||||
|
* System entry points.
|
||||||
|
*/
|
||||||
|
_start:
|
||||||
|
b ResetHandler
|
||||||
|
ldr pc, _undefined
|
||||||
|
ldr pc, _swi
|
||||||
|
ldr pc, _prefetch
|
||||||
|
ldr pc, _abort
|
||||||
|
nop
|
||||||
|
ldr pc, [pc,#-0xFF0] /* VIC - IRQ Vector Register */
|
||||||
|
ldr pc, _fiq
|
||||||
|
|
||||||
|
_undefined:
|
||||||
|
.word UndHandler
|
||||||
|
_swi:
|
||||||
|
.word SwiHandler
|
||||||
|
_prefetch:
|
||||||
|
.word PrefetchHandler
|
||||||
|
_abort:
|
||||||
|
.word AbortHandler
|
||||||
|
_fiq:
|
||||||
|
.word FiqHandler
|
||||||
|
.word 0
|
||||||
|
.word 0
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Reset handler.
|
||||||
|
*/
|
||||||
|
ResetHandler:
|
||||||
|
/*
|
||||||
|
* Stack pointers initialization.
|
||||||
|
*/
|
||||||
|
ldr r0, =__ram_end__
|
||||||
|
/* Undefined */
|
||||||
|
msr CPSR_c, #MODE_UND | I_BIT | F_BIT
|
||||||
|
mov sp, r0
|
||||||
|
ldr r1, =__und_stack_size__
|
||||||
|
sub r0, r0, r1
|
||||||
|
/* Abort */
|
||||||
|
msr CPSR_c, #MODE_ABT | I_BIT | F_BIT
|
||||||
|
mov sp, r0
|
||||||
|
ldr r1, =__abt_stack_size__
|
||||||
|
sub r0, r0, r1
|
||||||
|
/* FIQ */
|
||||||
|
msr CPSR_c, #MODE_FIQ | I_BIT | F_BIT
|
||||||
|
mov sp, r0
|
||||||
|
ldr r1, =__fiq_stack_size__
|
||||||
|
sub r0, r0, r1
|
||||||
|
/* IRQ */
|
||||||
|
msr CPSR_c, #MODE_IRQ | I_BIT | F_BIT
|
||||||
|
mov sp, r0
|
||||||
|
ldr r1, =__irq_stack_size__
|
||||||
|
sub r0, r0, r1
|
||||||
|
/* Supervisor */
|
||||||
|
msr CPSR_c, #MODE_SVC | I_BIT | F_BIT
|
||||||
|
mov sp, r0
|
||||||
|
ldr r1, =__svc_stack_size__
|
||||||
|
sub r0, r0, r1
|
||||||
|
/* System */
|
||||||
|
msr CPSR_c, #MODE_SYS | I_BIT | F_BIT
|
||||||
|
mov sp, r0
|
||||||
|
ldr r1, =__sys_stack_size__
|
||||||
|
sub r0, r0, r1
|
||||||
|
/*
|
||||||
|
* Check on allocated stacks size. This should never happen unless you
|
||||||
|
* don't care to verify the map file after compiling your application.
|
||||||
|
*/
|
||||||
|
ldr r1, =_bss_end
|
||||||
|
cmp r0, r1
|
||||||
|
bge ramsizeok
|
||||||
|
bl chSysHalt
|
||||||
|
ramsizeok:
|
||||||
|
/*
|
||||||
|
* Data initialization.
|
||||||
|
* NOTE: It assumes that the DATA size is a multiple of 4.
|
||||||
|
*/
|
||||||
|
ldr r1, =_textdata
|
||||||
|
ldr r2, =_data
|
||||||
|
ldr r3, =_edata
|
||||||
|
dataloop:
|
||||||
|
cmp r2, r3
|
||||||
|
ldrlo r0, [r1], #4
|
||||||
|
strlo r0, [r2], #4
|
||||||
|
blo dataloop
|
||||||
|
/*
|
||||||
|
* BSS initialization.
|
||||||
|
* NOTE: It assumes that the BSS size is a multiple of 4.
|
||||||
|
*/
|
||||||
|
mov r0, #0
|
||||||
|
ldr r1, =_bss_start
|
||||||
|
ldr r2, =_bss_end
|
||||||
|
bssloop:
|
||||||
|
cmp r1, r2
|
||||||
|
strlo r0, [r1], #4
|
||||||
|
blo bssloop
|
||||||
|
/*
|
||||||
|
* Application-provided HW initialization routine.
|
||||||
|
*/
|
||||||
|
bl hwinit
|
||||||
|
/*
|
||||||
|
* main(0, NULL).
|
||||||
|
*/
|
||||||
|
mov r0, #0
|
||||||
|
mov r1, #0
|
||||||
|
bl main
|
||||||
|
bl chSysHalt
|
||||||
|
|
@ -0,0 +1,85 @@
|
||||||
|
/*
|
||||||
|
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
|
||||||
|
|
||||||
|
This file is part of ChibiOS/RT.
|
||||||
|
|
||||||
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <ch.h>
|
||||||
|
|
||||||
|
#include "lpc214x.h"
|
||||||
|
#include "lpc214x_serial.h"
|
||||||
|
#include "buzzer.h"
|
||||||
|
|
||||||
|
static BYTE8 waThread1[UserStackSize(32)];
|
||||||
|
|
||||||
|
static t_msg Thread1(void *arg) {
|
||||||
|
|
||||||
|
while (TRUE) {
|
||||||
|
IO0CLR = 0x00000800;
|
||||||
|
chThdSleep(200);
|
||||||
|
IO0SET = 0x00000C00;
|
||||||
|
chThdSleep(800);
|
||||||
|
IO0CLR = 0x00000400;
|
||||||
|
chThdSleep(200);
|
||||||
|
IO0SET = 0x00000C00;
|
||||||
|
chThdSleep(800);
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static BYTE8 waThread2[UserStackSize(32)];
|
||||||
|
|
||||||
|
static t_msg Thread2(void *arg) {
|
||||||
|
|
||||||
|
while (TRUE) {
|
||||||
|
IO0CLR = 0x80000000;
|
||||||
|
chThdSleep(200);
|
||||||
|
IO0SET = 0x80000000;
|
||||||
|
chThdSleep(300);
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static BYTE8 waThread3[UserStackSize(64)];
|
||||||
|
|
||||||
|
static t_msg Thread3(void *arg) {
|
||||||
|
t_msg TestThread(void *p);
|
||||||
|
|
||||||
|
while (TRUE) {
|
||||||
|
if (!(IO0PIN & 0x00018000)) {
|
||||||
|
TestThread(&COM1);
|
||||||
|
PlaySound(500, 100);
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
if (!(IO0PIN & 0x00008000)) // Button 1
|
||||||
|
PlaySound(1000, 100);
|
||||||
|
if (!(IO0PIN & 0x00010000)) // Button 2
|
||||||
|
chFDDWrite(&COM1, (BYTE8 *)"Hello World!\r\n", 14);
|
||||||
|
}
|
||||||
|
chThdSleep(500);
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(int argc, char **argv) {
|
||||||
|
|
||||||
|
chSysInit();
|
||||||
|
chThdCreate(NORMALPRIO, 0, waThread1, sizeof(waThread1), Thread1, NULL);
|
||||||
|
chThdCreate(NORMALPRIO, 0, waThread2, sizeof(waThread2), Thread2, NULL);
|
||||||
|
chThdCreate(NORMALPRIO, 0, waThread3, sizeof(waThread3), Thread3, NULL);
|
||||||
|
chSysPause();
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,23 @@
|
||||||
|
*****************************************************************************
|
||||||
|
** ChibiOS/RT port for ARM7TDMI LPC214X. **
|
||||||
|
*****************************************************************************
|
||||||
|
|
||||||
|
** TARGET **
|
||||||
|
|
||||||
|
The demo runs on an Olimex LPC-P2148 board. The port on other boards or other
|
||||||
|
members of the LPC2000 family should be an easy task.
|
||||||
|
|
||||||
|
** The Demo **
|
||||||
|
|
||||||
|
The demo blinks the leds on the board by using multiple threads. By pressing
|
||||||
|
the buttons on the board it is possible to activate the buzzer and send a
|
||||||
|
message over the serial ports. Pressing both buttons activates the test
|
||||||
|
procedure on the serial port 1.
|
||||||
|
See main.c for details. Buzzer.c contains an interesting device driver
|
||||||
|
example that uses a physical timer for the waveform generation and a virtual
|
||||||
|
timer for the sound duration.
|
||||||
|
|
||||||
|
** Build Procedure **
|
||||||
|
|
||||||
|
The demo was built using the YAGARTO toolchain but any toolchain based on GCC
|
||||||
|
and GNU userspace programs will work.
|
||||||
Loading…
Reference in New Issue