git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@35 35acf78f-673a-0410-8e92-d51de3d6d3f4
gdisirio
parent
c069c0d1f9
commit
f44731e0c0
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@ -0,0 +1,180 @@
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#
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# !!!! Do NOT edit this makefile with an editor which replace tabs by spaces !!!!
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#
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##############################################################################################
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#
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# On command line:
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#
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# make all = Create project
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#
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# make clean = Clean project files.
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#
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# To rebuild project do "make clean" and "make all".
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#
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##############################################################################################
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# Start of default section
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#
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TRGT = arm-elf-
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CC = $(TRGT)gcc
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CP = $(TRGT)objcopy
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AS = $(TRGT)gcc -x assembler-with-cpp
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OD = $(TRGT)objdump
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HEX = $(CP) -O ihex
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BIN = $(CP) -O binary
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|
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MCU = arm7tdmi
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|
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# List all default C defines here, like -D_DEBUG=1
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DDEFS =
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|
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# List all default ASM defines here, like -D_DEBUG=1
|
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DADEFS =
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|
||||
# List all default directories to look for include files here
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||||
DINCDIR =
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|
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# List the default directory to look for the libraries here
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DLIBDIR =
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|
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# List all default libraries here
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DLIBS =
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#
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# End of default section
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##############################################################################################
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##############################################################################################
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# Start of user section
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#
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# Define project name here
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PROJECT = ch
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# Define linker script file here
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LDSCRIPT= ch.ld
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# List all user C define here, like -D_DEBUG=1
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UDEFS =
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# Define ASM defines here
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UADEFS =
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# List ARM-mode C source files here
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ASRC = chcore.c main.c buzzer.c \
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../../test/test.c ../../ports/ARM7-LPC214x/GCC/lpc214x_serial.c \
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../../src/chinit.c ../../src/chlists.c ../../src/chdelta.c ../../src/chschd.c \
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../../src/chthreads.c ../../src/chsem.c ../../src/chevents.c ../../src/chmsg.c \
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../../src/chsleep.c ../../src/chqueues.c ../../src/chserial.c
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|
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# List THUMB-mode C sources here
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# NOTE: If any module is compiled in thumb mode then -mthumb-interwork is
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# enabled for all modules and that lowers performance.
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TSRC =
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# List ASM source files here
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ASMSRC = crt0.s chcore2.s
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# List all user directories here
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UINCDIR = ../../src/include ../../ports/ARM7-LPC214x/GCC
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|
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# List the user directory to look for the libraries here
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ULIBDIR =
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|
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# List all user libraries here
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ULIBS =
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# ARM-specific options here
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AOPT =
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# THUMB-specific options here
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TOPT = -mthumb -D THUMB
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|
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# Common options here
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# NOTE: -mthumb-interwork increases the code size, remove it if you dont have
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# Thumb code anywhere in the project.
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# NOTE: -ffixed-f7 is only needed if you enabled CH_CURRP_REGISTER_CACHE in chconf.h.
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OPT = -O2 -ggdb -fomit-frame-pointer -fno-strict-aliasing
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#OPT += -ffixed-f7
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# Define warning options here
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WARN = -Wall -Wstrict-prototypes
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#
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# End of user defines
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##############################################################################################
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INCDIR = $(patsubst %,-I%,$(DINCDIR) $(UINCDIR))
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LIBDIR = $(patsubst %,-L%,$(DLIBDIR) $(ULIBDIR))
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DEFS = $(DDEFS) $(UDEFS)
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ADEFS = $(DADEFS) $(UADEFS)
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AOBJS = $(ASRC:.c=.o)
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TOBJS = $(TSRC:.c=.o)
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OBJS = $(ASMOBJS) $(AOBJS) $(TOBJS)
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ASMOBJS = $(ASMSRC:.s=.o)
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LIBS = $(DLIBS) $(ULIBS)
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MCFLAGS = -mcpu=$(MCU)
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|
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ASFLAGS = $(MCFLAGS) -Wa,-amhls=$(<:.s=.lst) $(ADEFS)
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CPFLAGS = $(MCFLAGS) $(OPT) $(WARN) -fverbose-asm -Wa,-ahlms=$(<:.c=.lst) $(DEFS)
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LDFLAGS = $(MCFLAGS) -nostartfiles -T$(LDSCRIPT) -Wl,-Map=$(PROJECT).map,--cref,--no-warn-mismatch $(LIBDIR)
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ODFLAGS = -x --syms
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ifneq ($(TSRC),)
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ASFLAGS += -mthumb-interwork -D THUMB_INTERWORK
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CPFLAGS += -mthumb-interwork -D THUMB_INTERWORK
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LDFLAGS += -mthumb-interwork
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endif
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# Generate dependency information
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CPFLAGS += -MD -MP -MF .dep/$(@F).d
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#
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# Makefile rules
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#
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all: $(OBJS) $(PROJECT).elf $(PROJECT).hex $(PROJECT).bin $(PROJECT).dmp
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$(AOBJS) : %.o : %.c
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$(CC) -c $(CPFLAGS) $(AOPT) -I . $(INCDIR) $< -o $@
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|
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$(TOBJS) : %.o : %.c
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$(CC) -c $(CPFLAGS) $(TOPT) -I . $(INCDIR) $< -o $@
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$(ASMOBJS) : %.o : %.s
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$(AS) -c $(ASFLAGS) $< -o $@
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%elf: $(OBJS)
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$(CC) $(ASMOBJS) $(AOBJS) $(TOBJS) $(LDFLAGS) $(LIBS) -o $@
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%hex: %elf
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$(HEX) $< $@
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%bin: %elf
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$(BIN) $< $@
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%dmp: %elf
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$(OD) $(ODFLAGS) $< > $@
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clean:
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-rm -f $(OBJS)
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-rm -f $(PROJECT).elf
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-rm -f $(PROJECT).dmp
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-rm -f $(PROJECT).map
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-rm -f $(PROJECT).hex
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-rm -f $(PROJECT).bin
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-rm -f $(ASRC:.c=.c.bak)
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-rm -f $(ASRC:.c=.lst)
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-rm -f $(TSRC:.c=.c.bak)
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-rm -f $(TSRC:.c=.lst)
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-rm -f $(ASMSRC:.s=.s.bak)
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-rm -f $(ASMSRC:.s=.lst)
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-rm -fR .dep
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#
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# Include the dependency files, should be the last of the makefile
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#
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-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
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# *** EOF ***
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@ -0,0 +1,82 @@
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/*
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ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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|
||||
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/>.
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*/
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/*
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* Buzzer driver for Olimex LPC-P2148.
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* Uses the timer 1 for wave generation and a Virtual Timer for the sound
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* duration.
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* The driver also generates an event when the sound is done and the buzzer
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* goes silent.
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*/
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#include <ch.h>
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#include "lpc214x.h"
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#include "buzzer.h"
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EventSource BuzzerSilentEventSource;
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#define StartCounter(t) ((t)->TC_EMR = 0xF1, (t)->TC_TCR = 1)
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#define StopCounter(t) ((t)->TC_EMR = 0, (t)->TC_TCR = 2)
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void InitBuzzer(void) {
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chEvtInit(&BuzzerSilentEventSource);
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/*
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* Switches P0.12 and P0.13 to MAT1.0 and MAT1.1 functions.
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* Enables Timer1 clock.
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*/
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PINSEL0 &= 0xF0FFFFFF;
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PINSEL0 |= 0x0A000000;
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PCONP = (PCONP & PCALL) | PCTIM1;
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/*
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* Timer setup.
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*/
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TC *tc = T1Base;
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StopCounter(tc);
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tc->TC_CTCR = 0; // Clock source is PCLK.
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tc->TC_PR = 0; // Prescaler disabled.
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tc->TC_MCR = 2; // Clear TC on match MR0.
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}
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static void stop(void *p) {
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TC *tc = T1Base;
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StopCounter(tc);
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chEvtSendI(&BuzzerSilentEventSource);
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}
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void PlaySound(int freq, t_time duration) {
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static VirtualTimer bvt;
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TC *tc = T1Base;
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chSysLock();
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if (bvt.vt_func) { // If a sound is already being played
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chVTResetI(&bvt); // then aborts it.
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StopCounter(tc);
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}
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tc->TC_MR0 = tc->TC_MR1 = (PCLK / (freq * 2));
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StartCounter(tc);
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chVTSetI(&bvt, duration, stop, NULL);
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chSysUnlock();
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}
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@ -0,0 +1,28 @@
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/*
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ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
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||||
|
||||
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/>.
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||||
*/
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||||
#ifndef _BUZZER_H_
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#define _BUZZER_H_
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void InitBuzzer(void);
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void PlaySound(int freq, t_time duration);
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extern EventSource BuzzerSilentEventSource;
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#endif /* _BUZZER_H_ */
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@ -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/>.
|
||||
*/
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||||
|
||||
/*
|
||||
* LPC2148 memory setup.
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||||
*/
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__und_stack_size__ = 0x0004;
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__abt_stack_size__ = 0x0004;
|
||||
__fiq_stack_size__ = 0x0010;
|
||||
__irq_stack_size__ = 0x0080;
|
||||
__svc_stack_size__ = 0x0004;
|
||||
__sys_stack_size__ = 0x0080;
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||||
__stacks_total_size__ = __und_stack_size__ + __abt_stack_size__ + __fiq_stack_size__ + __irq_stack_size__ + __svc_stack_size__ + __sys_stack_size__;
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|
||||
MEMORY
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{
|
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flash : org = 0x00000000, len = 512k - 12k
|
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ram : org = 0x40000200, len = 32k - 0x200 - 288
|
||||
}
|
||||
|
||||
__ram_start__ = ORIGIN(ram);
|
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__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