Compiling programs for stellaris in linux

[Anish 0]

Hi,

I am using Linux and I've installed arm-none-eabi-gcc toolchain and lm4flash.

Now, I also extrated the stellarisware at ~/stellaris/

Now, when i run the examples givin in the stellarisware like blinky.bin using lm4flash, it works fine.

 

But when i create my own programs (from the stellaris workshop files), how do i compile them and create a .bin file? I mean i need to commands to do them. I tried the commands from recursivelabs: http://recursive-labs.com/blog/2012/10/28/stellaris-launchpad-gnu-linux-getting-started/

 

When i run those commands, i get errors as follows:

[anish@thinkpad stellaris]$ arm-none-eabi-gcc myfirstlab.c startup_gcc.c -g -mthumb -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=softfp -Os -ffunction-sections -fdata-sections -MD -std=c99 -Wall -pedantic -DPART_LM4F120H5QR -c -I/home/anish/stellaris  -DTARGET_IS_BLIZZARD_RA1
myfirstlab.c: In function 'main':
myfirstlab.c:10:2: warning: implicit declaration of function 'ROM_SysCtlClockSet' [-Wimplicit-function-declaration]
  ROM_SysCtlClockSet(SYSCTL_SYSDIV_5|SYSCTL_USE_PLL|SYSCTL_XTAL_16MHZ|SYSCTL_OSC_MAIN);
  ^
myfirstlab.c:12:2: warning: implicit declaration of function 'ROM_SysCtlPeripheralEnable' [-Wimplicit-function-declaration]
  ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
  ^
myfirstlab.c:13:2: warning: implicit declaration of function 'ROM_GPIOPinTypeGPIOOutput' [-Wimplicit-function-declaration]
  ROM_GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3);
  ^
myfirstlab.c:17:3: warning: implicit declaration of function 'ROM_GPIOinWrite' [-Wimplicit-function-declaration]
   ROM_GPIOinWrite(GPIO_PORTF_BASE,GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3, PinData);
   ^
myfirstlab.c:18:3: warning: implicit declaration of function 'ROM_SysCtlDelay' [-Wimplicit-function-declaration]
   ROM_SysCtlDelay(2000000);
   ^
[anish@thinkpad stellaris]$ arm-none-eabi-ld -T blink.ld --entry ResetISR -o a.out startup_gcc.o myfirstlab.o --gc-sections
myfirstlab.o: In function `main':
/home/anish/workspace/stellaris/myfirstlab.c:10: undefined reference to `ROM_SysCtlClockSet'
/home/anish/workspace/stellaris/myfirstlab.c:12: undefined reference to `ROM_SysCtlPeripheralEnable'
/home/anish/workspace/stellaris/myfirstlab.c:13: undefined reference to `ROM_GPIOPinTypeGPIOOutput'
/home/anish/workspace/stellaris/myfirstlab.c:17: undefined reference to `ROM_GPIOinWrite'
/home/anish/workspace/stellaris/myfirstlab.c:18: undefined reference to `ROM_SysCtlDelay'
/home/anish/workspace/stellaris/myfirstlab.c:19: undefined reference to `ROM_GPIOinWrite'
/home/anish/workspace/stellaris/myfirstlab.c:20: undefined reference to `ROM_SysCtlDelay'
[anish@thinkpad stellaris]$ 

Where am i going wrong/what am i missing?

 

Thanks

[szymekrak1426459900 0]

Could you please upload myfirstlab.c?

Do the functions without ROM_ prefix work?

[Ekami 0]

Here is a simple project with Makefile which is actually working for me:

File: Makefile

SRC=    startup_gcc.c \
        blink.c

OBJS=   $(SRC:.c=.o)

NAME=   blink.bin

CC=     arm-none-eabi-gcc

LD=     arm-none-eabi-ld

OBJCPY= arm-none-eabi-objcopy

INC=    $(STELLARISWARE)

CFLAGS= -I$(INC) -g -mthumb -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=softfp -Os -ffunction-section\
s -fdata-sections -MD -std=c99 -Wall -pedantic -DPART_LM4F120H5QR -c -DTARGET_IS_BLIZZARD_RA1

$(NAME): $(OBJS)
        $(LD) -T ldStart.ld --entry ResetISR -o a.out $(OBJS) --gc-sections
        $(OBJCPY) -O binary a.out $(NAME)

clean:
        rm -vf $(OBJS) $(NAME) *.d *.out

File: ldStart.ld

MEMORY
{
    FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x00040000
    SRAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
}

SECTIONS
{
    .text :
    {
     	_text = .;
	KEEP(*(.isr_vector))
	*(.text*)
	*(.rodata*)
	_etext = .;
    } > FLASH

    .data : AT(ADDR(.text) + SIZEOF(.text))
    {
     	_data = .;
	*(vtable)
	*(.data*)
	_edata = .;
    } > SRAM

    .bss :
    {
        _bss = .;
        *(.bss*)
        *(COMMON)
        _ebss = .;
    } > SRAM
}

File: blink.c

#include "inc/hw_gpio.h"
#include "inc/hw_memmap.h"
#include "inc/hw_sysctl.h"
#include "inc/hw_types.h"
#include "driverlib/gpio.h"
#include "driverlib/rom.h"
#include "driverlib/sysctl.h"

#define LED_RED GPIO_PIN_1
#define LED_BLUE GPIO_PIN_2
#define LED_GREEN GPIO_PIN_3

int main()
{
  ROM_SysCtlClockSet(SYSCTL_SYSDIV_4|SYSCTL_USE_PLL|SYSCTL_XTAL_16MHZ|SYSCTL_OSC_MAIN);
  ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
  ROM_GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, LED_RED|LED_BLUE|LED_GREEN);

  for (; {
    // set the red LED pin high, others low                                                             
    ROM_GPIOPinWrite(GPIO_PORTF_BASE, LED_RED|LED_GREEN|LED_BLUE, LED_RED);
    ROM_SysCtlDelay(5000000);
    ROM_GPIOPinWrite(GPIO_PORTF_BASE, LED_RED|LED_GREEN|LED_BLUE, 0);
    ROM_SysCtlDelay(5000000);
  }

}

File: startup_gcc.c

http://www2.zshares.net/jli429a08wzl

or you can find it into your ~/StellarisWare/boards/ek-lm4f120xl/blinky/startup_gcc.c

Refer yourself to this Makefile/Project to see if you don't have something missing.