Where's the error in this code for a Cortex M3 (stm32F103)

[ledieuaeris]

Error in simple code for a Cortex M3 (stm32F103)

Hi,

I just started to program an ARM with Keil. To understand how to do that, I have written that:

#include <stm32f10x_lib.h>

int main(void){

GPIO_InitTypeDef GPIO_InitStructure;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

GPIO_Init( GPIOD, &GPIO_InitStructure);

}

Keil said me:

arm.axf: Error: L6218E: Undefined symbol GPIO_Init (referred from main.o).

Can you say me what's wrong and how to make this code working.

Thanks,
Michel

PS: Sorry for my bad english

 

[aydinkoyuncu]

Re: Error in simple code for a Cortex M3 (stm32F103)

You should compile the stm32f10x_gpio.c file too.

 

[yuvko]

1) make sure that stm32f10x_gpio.h is included in stm32f10x_lib.h.
2) you will also need to enable the port clock before using it.