CVS: examples/iostructures README.txt,NONE,1.1 main.c,NONE,1.1 makefile,NONE,1.1

Update of /cvsroot/mspgcc/examples/iostructures
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv25072/examples/iostructures

Added Files:
	README.txt main.c makefile 
Log Message:
add simple example that uses iostructures.h

--- NEW FILE: README.txt ---
iostructures
============

Overview
--------
It is a simple example project for the MSP430 series MCU and the GCC port
of the mspgcc project. The project contains a makefile and C sources.

Features:

- Just a plain ``main()`` that accesses the ports of the MSP
  using the declarations from iostructures.h

- Makefile

  - compile and link
  - convert to intel hex format
  - generate a listing with mixed C / assembly


Required hardware
-----------------

- A MSP430F1121 or larger device (FET kits)

- An array of eight LEDs on P1.0 (470 Ohms series resistor to GND)
  or better connected through a driver IC like a 74HC245 or 74HC244.


Disclaimer
----------
This example is part of the mspgcc project http://mspgcc.sf.net.
See license.txt_ for details.

chris

.. _license.txt: ../license.html

--- NEW FILE: main.c ---
/**
 * Show th euse of iostructures.h
 * see README.txt for details.
 *
 * chris <[email protected]>
 */

#include <io.h>                         // msp430 defs
#include <msp430/iostructures.h>        // must be inlcuded after io.h!
#include <mspgcc/util.h>                // delay()


/**
 * Main function with a blinking led
 */
int main(void) {
    WDTCTL = WDTPW|WDTHOLD;             // Init watchdog timer

    port1.dir.pin0 = IO_DIRPIN_OUTPUT;
    
    while (1) {                         // main loop, never ends...
        port1.out.pin0 ^= 1;
        delay(0x4fff);
    }
}


--- NEW FILE: makefile ---
# makfile configuration
NAME            = iostructures_demo
CSOURCES        = main.c
#~ ASOURCES        = 
CPU             = msp430x1121


ASFLAGS         = -mmcu=${CPU} -D_GNU_ASSEMBLER_ -I .
CFLAGS          = -mmcu=${CPU} -O2 -Wall -g --std=gnu99 -I .
LDFLAGS         =  -lmspgcc

#switch the compiler (for the internal make rules)
CC              = msp430-gcc
AS              = msp430-gcc

OBJECTS         = ${CSOURCES:.c=.o} ${ASOURCES:.S=.o}


.PHONY: all FORCE clean download download-jtag download-bsl

#all should be the first target. it's built when make is run without args
all: ${NAME}.elf ${NAME}.a43 ${NAME}.lst dependencies.d

#confgigure the next line if you want to use the serial download
download: download-jtag
#~ download: download-bsl

#additional rules for files
${NAME}.elf: ${OBJECTS}
	${CC} -mmcu=${CPU} -o $@ ${OBJECTS} $(LDFLAGS)

${NAME}.a43: ${NAME}.elf
	msp430-objcopy -O ihex $^ $@

${NAME}.lst: ${NAME}.elf
	msp430-objdump -dSt $^ >$@
	@echo "----- RAM/Flash Usage -----"
	msp430-size $^

download-jtag: all
	msp430-jtag -e ${NAME}.elf

download-bsl: all
	msp430-bsl $(BSLOPT) -e ${NAME}.elf

clean:
	rm -f ${NAME}.elf ${NAME}.a43 ${NAME}.lst ${OBJECTS} dependencies.d

#dummy target as dependecy if something has to be build everytime
FORCE:

#project dependencies
dependencies.d:
	$(CC) -MM ${CFLAGS} ${CSOURCES} > dependencies.d
ifdef ASOURCES
	$(CC) -MM ${ASFLAGS} ${ASOURCES} >> dependencies.d
endif

-include dependencies.d


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