MSP PROCESSORS OPEN SOURCE TOOLS LAB MANUALemtrontech.in/kits/msp.pdf · source code is freely...

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MSP PROCESSORS

OPEN SOURCE TOOLS LAB MANUAL



How and Why Does Linux Fit in?

� Linux operating system is developed under the GNU General Public License

� source code is freely available

� no royalty or licensing fees

� the source code can be modified to fit your needs

� the results can be sold for profit, but original authors retain copyright

� you must provide the source to your modifications

� because it comes with source code to the kernel, it is quite portable

� Linux runs on more CPUs and platforms than any other computer operating system

� faster computers even aging x486-based computers with limited amounts of RAM

� is a true multi-tasking operating system similar to his brother UNIX

� sophisticated, state-of-the-art memory management to control all system processes

� if a program crashes you can kill it and continue working with confidence

� is practically immunized against all kinds of viruses



GNU Code Generation Tools

GNU Development Tools:

• GCC C compiler

• G++ C++ compiler

• GDB source code level debugger

• GNU make Make utility

GNU binutils provide the following programs for TMS320VC33

code generation:

• c4x-as: GNU assembler for the TMS320C3X/4X family of DSPs

• c4x-ld: GNU linker to produce executable code from object files

• c4x-objcopy: Utility to copy and translate between object file formats

• c4x-objdump: Utility to create listing information from object files

• c4x-ar: Utility to create and manage program archives

Make Example:

• c4x-as -o msin.obj -m31 im3.asm

• c4x-as -o init33.obj -m31 init33.asm

• c4x-ld -o msin.out -T msin.map msin.obj init33.obj mmregs.obj

• c4x-objdump -dst msin.out > msin.lst



GNU binutils provide the following programs for MSP430 code

generation:

• GNU assembler for the MSP430 family: binutils-2.15.tgz

• GNU gcc complier for the MSP430 family: msp430-gcc-3.4.1.tgz

• GNU gcc complier revised for the MSP430 family: msp430-gcc-3.4.1.20040723.tgz

• GNU gcc complier library for the MSP430 family: msp430-libc-1.0.20040716.tar

Installation of MSP430 Assembler:

1. cd gcc

2. tar -xvzf binutils-2.15.tgz

3. cd binutils-2.15

4. ./configure --target=msp430

5. make

6. make install

Installation of MSP430 GCC

1. cd ..

2. tar -xzvf msp430-gcc-3.4.1.tgz

3. tar -xzvf msp430-gcc-3.4.1.20040723.tgz

4. cd gcc-3.4.1

5. ./configure --target=msp430

6. make

7. make install

8. cd ..

9. mkdir objdir



10. mv msp430-libc-1.0.20040716.tar objdir/

11. cd objdir/

12. tar -xvf msp430-libc-1.0.20040716.tar

13. cd msp430-libc

14. cd src

15. gedit Makefile

16. remove msp430 and keep as: usr/local

17. save

18. make

19. make install

Installation for BSL:

1. copy the bsl file into root/usr/local/bin/ directory

2. bsl attributes chould be 755. To do this right click on the bsl file and choose the properties and

chane the permision to 755.

Set Com Port Permission:

1. chmod 666 ../../dev/ttys0 - to set serial port COM1 permission to use.

(or)

2. chmod +rw /dev/ttys0

(or)

3. chmod 666 /dev/ttyS0

Assembler Example:

1. cd asm

2. gedit &

3. open any file with extension .asm

4. make changes in the current file or write a new program and save file as .asm.

5. open Makefile

6. Give the name of the newfile with extension add .asm at two places i.e.:

f.o: add.asm

msp430-as -o f.o -mmsp430x148 add.asm

7. save Makefile

8. at the terminal type: > make clean



9. > make

10. output file name will be: f.out

11. rm keyfile

12. yes

13. bsl

14. It should display BSL Active

15. If not check power on to kit, Serial port connected to Com1, or serial port jumpers.

16. me

17. load f.out

18. newkey f.out

19. x 4000

20. h

21. save 300 05 x.dat

22. gnuplot

23. plot "x.dat" withline

24. Please Note: If your program does not have any .vect section then remove key file and don't

create newkeyfile.

25. If you want to see the contents of the memory on the screen then rdx starting address length.

Ex: rdx 400 05

Memory Map File of MSP430:

MEMORY

{

TEXT : ORIGIN = 0x4000, LENGTH = 0x1000

DATA : ORIGIN = 0x0300, LENGTH = 0x00ff

VECTORS : ORIGIN = 0xffe0, LENGTH = 0x0020

DEFINT : ORIGIN = 0xffde, LENGTH = 0x0002

STACK : ORIGIN = 0x0a00, LENGTH = 0x0020

}

SECTIONS

{

.text : { *(.text) } > TEXT

.data : { *(.data) } > DATA

.vect : { *(.vect) } > VECTORS

defint : { *(defint) } > DEFINT

.stack : { *(.stack) } > STACK

.bss : { *(.bss) }

}

Make Example:

• f.o: square.asm

� msp430-as -o f.o -mmsp430x148 square.asm



• f.elf: f.o f.map

� msp430-ld -o f.elf -T f.map f.o

• f.out: f.elf

� msp430-objcopy -O ihex f.elf f.out

• f.lst: f.elf

� msp430-objdump -dst f.elf > f.lst

MSP430 Physical Layout:



MSP430 Board Design:



MSP430 Board Components List: Part Value Device Package Library

Sheet

3V_DC PINHD-1X2 1X02 pinhead 1

5V_DC PINHD-1X2 1X02 pinhead 1

9V_DC1 PINHD-1X2 1X02 pinhead 1

ADC PINHD-1X2 1X02 pinhead 1

B PINHD-1X5 1X05 pinhead 1

BSL MA03-2 MA03-2 con-lstb 1

C1 C2,5 C2,5-4 CAP 1

C2 C2,5 C2,5-4 CAP 1

C3 C2,5 C2,5-4 CAP 1

C4 C2,5 C2,5-4 CAP 1

C5 C2,5 C2,5-4 CAP 1

C6 C2,5 C2,5-4 CAP 1

C7 C2,5 C2,5-4 CAP 1

C8 C2,5 C2,5-4 CAP 1

C9 C2,5 C2,5-4 CAP 1

C10 C2,5 C2,5-4 CAP 1

C11 10u ELC-2,5 ES-2,5 DISCRETE 1




C15 C2,5 C2,5-4 CAP 1


C17 C2,5 C2,5-4 CAP 1

DAC PINHD-1X2 1X02 pinhead 1

G PINHD-1X1 1X01 pinhead 1

IC1 MSP430 MSP430F149 LQFP64 ti_msp430 1

IC2 LM1117 LD117AS12TR SOT223 v-reg 1

IC3 7805 78XXS 78XXS v-reg 1

IC4 MAX3243WI MAX3243WI SO28L maxim 1

IC5 LM358N LM358N DIL08 linear 1

JTAG PINHD-2X5 2X05 pinhead 1

LC1 MA03-1 MA03-1 con-lstb 1

LC2 MA13-1 MA13-1 con-lstb 1

LDR S02P S02P con-amp-mt 1

LM35 BC447 TO92-EBC transistor-npn 1

MIC1 S02P S02P con-amp-mt 1

P-LED LEDCHIPLED_1206 CHIPLED_1206 led 1

P1.3 MA03-1 MA03-1 con-lstb 1



P1.6 LEDCHIPLED_1206 CHIPLED_1206 led 1







PIZ0 S02P S02P con-amp-mt 1

Q1 CRYTALHC49S HC49/S crystal 1

R0 2.2k RESUS-10 R-10 DISCRETE 1

R1 330 RESUS-10 R-10 DISCRETE 1




R5 1k RESUS-10 R-10 DISCRETE 1



R8 1M RESUS-10 R-10 DISCRETE 1





R13 4.7K RESUS-10 R-10 DISCRETE 1

R14 330E RESUS-10 R-10 DISCRETE 1



TCK PINHD-1X2 1X02 pinhead 1

TSOP PINHD-1X4 1X04 pinhead 1

X1 F09H F09H con-subd 1

X2 PN61729-S PN61729-S PN61729-S con-berg 1

Z PINHD-1X6 1X06 pinhead 1



Table: MSP Instruction Set



MSP 430 Programming Examples

Example 1: Addition of 16-bit data

.include "ppfmap.asm"

.data

data1: .word 1

data2: .word 2

result: .word 0000

.text

mov #0x0400,r6 ; Buffer start

mov.b #0x00,&BCSCTL1 ; External Xtal

mov.b #0x88,&BCSCTL2

mov &data1,r4

add r4,&data2

mov &data2,@r6

mov @r6,&result

a: jmp a

Example 2: Subtraction of 16-bit data


.data

data1: .word 1

data2: .word 2

result: .word 0000

.text




mov &data1,r4

sub &data2,r4

mov r4,@r6

mov @r6,&result

a: jmp a

Example 3: Multiplication of 16-bit data


.data

A: .word 0x0002

B: .word 0x0004

HI: .word 0x0000



LO: .word 0x0000

.text



mov &A,&MPYS

mov &B,&OP2

mov &RESHI,&HI

mov &RESLO,&LO

a: jmp a

Example 4: This program generate square wave on Port 1 using delay routine


.data

.text

mov.b #0x00,BCSCTL1

mov.b #0x88,BCSCTL2

bic.b #0xff,&P1SEL

bis.b #0xff,&P1DIR

here: mov.b #0x00,&P1OUT

call #delay

mov.b #0xff,&P1OUT

call #delay

jmp here

delay: mov.b #0xff,r9

here1: dec.b r9

jnz here1

ret

Example 5: Toggle Port1 using Timer - A Interrupt in up count mode


.data

.text

mov.b #0x00,&BCSCTL1 ; Select Xtal = External


bic.b #0xff,&P1SEL ; Port1 = I/O

bis.b #0xff,&P1DIR ; Port1 = O/P

mov.b #0x00,&P1OUT ; Port1 = 00

eint ; enable global interrupt

mov #0x2d2,&TACTL ; Start Timer - A



mov #0x0014,&TACCR0 ; Count for 20 us

a: jmp a ; background loop

tint_isr: mov #0x0200,&TACTL ; Stop Timer

xor.b #0xff,&P1OUT ; Toggle Port-1

mov #0x02d2,&TACTL ; Start Timer

reti

.section defint, "a"

default_isr: reti

.section .vect, "a"

.word default_isr ; DAC12, DMA (0xffe0)

.word default_isr ; P2 interrupts (0xffe2)

.word default_isr ; USART1 transmit (0xffe4)

.word default_isr ; USART1 receive (0xffe6)


.word tint_isr ; Timer_A3 (0xffea)

.word default_isr ; Timer_A3 (0xffec)

.word default_isr ; ADC12 (0xffee)

.word default_isr ; USART0 transmit (0xfff0)

.word default_isr ; USART0 receive (0xfff2)

.word default_isr ; Watchdog timer (0xfff4)

.word default_isr ; Comparator_A (0xfff6)

.word default_isr ; Timer_B7 (0xfff8)

.word default_isr ; Timer_B7 (0xfffa)

.word default_isr ; NMI/OSC fault/Flash (0xfffc)

.word default_isr ; Reset (0xfffe)

Example 6: This program generate sine wave Using Timer-A for dt us time step .include "ppfmap.asm"

.data

sin: .word 0x0000

cos: .word 0x7fff

wdt: .word 0x203

.text

mov #0x03ff,r5 ; Buffer Length




bic.b #0xff,&P1SEL ; Port1 = I/O

bis.b #0xff,&P1DIR ; Port1 = O/P

mov.b #0x00,&P1OUT ; Port1 = 00

eint ;Enable Global interrupt

mov #0x02d2,&TACTL ; Enable Timer-A

mov #0x0014,&TACCR0 ; count for dt us



a: jmp a

tint_isr: mov.b #0x00,&P1OUT ; Port1 = ff

dec r5 ; Decrement buffer length

jz b

mov &cos,&MPYS ; mov oprand 1 into MPYS

mov &wdt,&OP2 ; mov oprand 2 into OP2

mov &RESHI,r4 ; mov higher byte of result into r4

rla r4 ; rotate left arithmaticaly Q-15

add r4,&sin

mov &sin,&MPYS ; mov oprand 1 into MPYS

mov &wdt,&OP2 ; mov oprand 2 into OP2

mov &RESHI,r4 ; mov higher byte of result into r4

rla r4 ; rotate left arithmaticaly Q-15

sub r4,&cos

mov &sin,@r6 ; Store the result in buffer

incd r6 ; Increment buffer address

b: mov.b #0xff,&P1OUT ; Port1 = 00

reti

.section defint, "a"

default_isr:reti

.section .vect, "a"

.word default_isr ; DAC12, DMA (0xffe0)


.word default_isr ; USART1 transmit (0xffe4)

.word default_isr ; USART1 receive (0xffe6)


.word tint_isr ; Timer_A3 (0xffea)

.word default_isr ; Timer_A3 (0xffec)

.word default_isr ; ADC12 (0xffee)

.word default_isr ; USART0 transmit (0xfff0)

.word default_isr ; USART0 receive (0xfff2)

.word default_isr ; Watchdog timer (0xfff4)

.word default_isr ; Comparator_A (0xfff6)

.word default_isr ; Timer_B7 (0xfff8)

.word default_isr ; Timer_B7 (0xfffa)

.word default_isr ; NMI/OSC fault/Flash (0xfffc)

.word default_isr ; Reset (0xfffe)

Example 7: C Language program to write data to RAM

#include <stdio.h>

#include <signal.h>

#include "hardware.h"

int main(void) {

int i=0;



static __volatile__ int *buf0=0x0400 ;

static __volatile__ int a[] = {0x0012};

*buf0 = *&a[i];

}

Example 8: C Language program to write data to RAM buffer and find given variable

#include <stdio.h>

#include <signal.h>


#define MAXBUF 100

#define MCOUNT 1

#define SEGMENT 0xfc10

int main(void)

{

static __volatile__ int a[] =

{0x0012,0x0023,0x0034,0x0045,0x0056,0x0067,0x0078,0x0089,0x0090};

static __volatile__ int *b=0x0400;

int i=0,hi=0;

while(i<9)

{

*b= *&a[i];

b++;

i++;

}

i=0;

while(i<9)

{

if(a[i]==0x0056)

hi=a[i];

i++;

}

*b=hi;

}

Example 9: C Language program to write read data from port 1 and write data Port 2

#include <stdio.h>

#include <signal.h>


int main(void)

{

BCSCTL1=0x00;

BCSCTL2=0x88;

P2SEL=0x00; // SELECT I/O FUNC. FOR PORT2

P2DIR=0xff; // SELECT OUTPUT DIR. FOR PORT2



P1SEL=0xf8; // SELECT I/O FUNC. FOR PINS 1.0, 1.1 & 1.2 OF PORT1

P1DIR=0x00; // SELECT INPUT DIR. FOR ALL PINS OF PORT1

while(1)

{

if((P1IN&0x08)==0x00) // TEST CONDITON P1.3

{

P2OUT=0x01; //LED P2.0

}

else

{

P2OUT=0x00;

}

}

return(0);

}

Example 10: C Language program to write generate square wave on Port6 if Port1 is zero use

Timer for delay

#include <stdio.h>

#include <signal.h>


int main(void)

{

BCSCTL1=0x00;

BCSCTL2=0x88;

P6SEL=0x00; // SELECT I/O FUNC. FOR PORT6

P6DIR=0xff; // SELECT OUTPUT DIR. FOR PORT6

P1SEL=0xf8; // SELECT I/O FUNC. FOR PINS 1.0, 1.1 & 1.2 OF PORT1

P1DIR=0x00; // SELECT INPUT DIR. FOR ALL PINS OF PORT3

while(1)

{

if((P1IN&0x01)==0x00) // TEST CONDITON

{

TACTL=0x02d0; //INITIALIZE

TACCR0=0x2000; // MAX. VALUE OF TIMER

while(TAR<=TACCR0/2) //GENERATE SQUARE WAVE

{

P6OUT=0x00;

}

P6OUT=0xff;



}

else

{

P6OUT=0x00;

}

}

return(0);

}

Example 11: C Language program to display the data on LCD


#include "display.h"

#define LCD_DELAY 0xffff

int main()

{

int i;

char Ans=0x041;

BCSCTL1= 0x00;

BCSCTL2= 0x88;

P4SEL= ~0xff & P4SEL;

P4DIR= 0xff | P4DIR;

P3SEL= ~0xff & P3SEL;

P3DIR= 0xff | P3DIR;

for(i=0; i<4; ++i)

lcd_control_on(0x38);

lcd_control_on(0X0d);



for(i=0; i< 15; ++i)

{

lcd_putchar(Ans);

Ans ++;

}

return 0;

}



Example 12: C Language program convert Analog to Digital of channel -0

//CH-0, Buffer 300h to 600h

#include <stdio.h>

#include <signal.h>


#include <msp430x14x.h>

int *ptr=0x300;

interrupt (ADC_VECTOR) tint(void) {

*ptr = ADC12MEM0 ;

ADC12IFG = 0x0000;

ptr = (ptr + 1);

if(ptr>=0x600)

{

ADC12IE = 0x0000;

ADC12CTL0=0x0000;

dint();

exit(0);

}

return;

}

int main(void) {

int i,j;

ADC12MEM0=0x0000;

/* Port 6 for ADC input functions */

P6SEL = 0xff;

P6DIR = 0x00;

/* Select XT2CLK for all clock sources */

BCSCTL1 = BCSCTL1_INIT;//0x45 XTS | DIVA_0 | RSEL2 | RSEL0

for(i=0; i<200; i++) // Clear the oscillator faults

IFG1 &= ~OFIFG; // needed to switch from DCO to XT2 //00&FD = 00

BCSCTL2 = BCSCTL2_INIT; //0x8E SELM_2 | SELS | DIVM_0 | DIVS_3



/* ADC Usage Test */

ADC12IE = 0xffff;

eint();

ADC12CTL0 = SHT0_5| MSC | REF2_5V | REFON | ADC12ON;

//011000000000|10000000|01000000|00100000|00010000=0x06F0

ADC12CTL1 = CSTARTADD_0 | SHS_0 | SHP | ADC12DIV_0 | ADC12SSEL_3 |

CONSEQ_2;//0x021A, 0x2218

ADC12MCTL0 = SREF_0 | INCH_0;//0x01,0x02

ADC12CTL0 |= ENC | ADC12SC; //0000|0002|0001=0003

for(j=0;j<13;j++)

{

_NOP();

}

_BIS_SR(LPM0_bits + GIE); // Enter LPM0,Enable interrupts

while ((ADC12IFG & BIT0)==0);

_NOP();

while(1) {}

}



IAR Workbench to Simulate the Project:

Help-> Assembler Reference Guide -> Directives

1. Select name of the Project in the Workspace-> Files : EX: MSP430x

2. Project-> Options

3. Debugger - > Simulator

4. Make Restart Debugger

5. Debug-> Auto step

6. View-> Register-> IO

7. Stop-> debugging

Note: Do not change the linker options for simulations otherwise it will through error for

simulations



To generate .a43file format make changes in linker options

1. Select name of the Project in the Workspace-> Files : EX: LCD-Debug

2. Project-> Options

3. General Options-> Device-> MSP430F148

4. Select ->Linker

5. Output-> other

6. Select-> Extra Output

7. Select-> Generate extra output file

8. Debugger - > FET Debugger / Simulator

9. FET Debugger -> Connection ->LPT1



1. Project->create New project

2. Select -> asm -> ok

3. Project-> Rebuild all



MSPFET - FREE MSP430 flash programming utility

Tools->Setup->

PC Side Setup:



1. Select controller MSP430F148

2. Close TCK pin on PCB

3. Close BSL pins on PCB

4. Erase Flash Memory

5. File -> open -> *.a43 file

6. Program

7. Disconnect the Serial cable to see Power ON RESET (or) while the cable is connected make

RESET PIN active High to run the program

8. COM programs can’t work when the MSPFET is off and the JUMPERS are changed to UART side

MSP PROCESSORS OPEN SOURCE TOOLS LAB MANUALemtrontech.in/kits/msp.pdf · source code is freely...

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Transcript of MSP PROCESSORS OPEN SOURCE TOOLS LAB MANUALemtrontech.in/kits/msp.pdf · source code is freely...