Compiler/MSP430F1611: Not able to use printf();

Yong Kim

Part Number: MSP430F1611

Tool/software: TI C/C++ Compiler

Dear all,

I am currently trying to use printf() to read the values that I retained from wireless data packets, and value of counters.

I am running this with SCONScript, and using MAC OS.

I get the following error, my gcc is 48 and using macports.

any help will be greatly appreicated.

scons: done reading SConscript files.

scons: Building targets ...

Compiling build/telosb_mspgcc/projects/common/01bsp_radio_rx/01bsp_radio_rx.o

build/telosb_mspgcc/projects/common/01bsp_radio_rx/01bsp_radio_rx.c: In function ‘mote_main’:

build/telosb_mspgcc/projects/common/01bsp_radio_rx/01bsp_radio_rx.c:134:7: warning: incompatible implicit declaration of built-in function ‘printf’ [enabled by default]

Linking build/telosb_mspgcc/projects/common/01bsp_radio_rx_prog

/opt/local/lib/gcc/msp430/4.6.3/../../../../msp430/lib/mmpy-16/libc.a(printf.o): In function `printf':

/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_cross_msp430-libc/msp430-libc/work/msp430-libc-20120224/src/./stdlib/printf.c:42: undefined reference to `putchar'

/opt/local/lib/gcc/msp430/4.6.3/../../../../msp430/lib/mmpy-16/libc.a(printf.o): In function `vprintf':

collect2: ld returned 1 exit status

scons: *** [build/telosb_mspgcc/projects/common/01bsp_radio_rx_prog] Error 1

scons: building terminated because of errors.

over 8 years ago

0 George Mock over 8 years ago

TI__Guru**** 251540 points

Are you using the MSP430 GCC compiler from TI? I suspect not. The TI one is up to version 6.4.0. You appear to use version 4.6.3. In this forum, we only support compilers released by TI.

Thanks and regards,

-George

0 Yong Kim over 8 years ago in reply to George Mock

Intellectual 410 points

Dear George,

Thank you for your reply.
Will the issue may be resolved by simply replacing one to the another?

Thank you

0 George Mock over 8 years ago in reply to Yong Kim

TI__Guru**** 251540 points

Yong Kim said:
Will the issue may be resolved by simply replacing one to the another?

I don't know. Experience says that while this problem may be resolved, other problems will come up.

One problem I think you have ... Whenever you call printf (and related functions) you need to #include <stdio.h> .

Keep in mind that the ability of embedded systems to perform output of characters, or anything else, is often quite limited. That is why the first program for most embedded systems is not hello world, but blink an LED.

Thanks and regards,

-George

0 George Mock over 7 years ago in reply to George Mock

TI__Guru**** 251540 points

Since it has been a while, I presume you have resolved your problem. I'd appreciate hearing how you resolved it.

Thanks and regards,

-George

0 Yong Kim over 7 years ago in reply to George Mock

Intellectual 410 points

Dear Geroge,

Thank you, I haven't resolved this and I didn't want to spend too much time on this.
So I just used UART and displayed all the values according to its type.

Thank you

Kind regards.

Yong Kim

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Compiler/MSP430F1611: Not able to use printf();