Posted on June 24, 2014 at 17:08Hi.
I try to make a simple program using a STM32F013ZE microcontroller, but i receive the next error :
''.\Blink four LEDs.axf: Error: L6218E: Undefined symbol SystemInit (referred from startup_stm32f10x_hd.o).
Not enough information to list image symbols.''
Program code :
&sharpinclude<stm32f10x.h> // STM32F103 definitions
void wait();
int main (void)
{
unsigned int i; // LED variable
RCC->APB2ENR |= (1UL << 7); // Enable GPIOF, GPIOC, GPIOB clock
GPIOF->CRL = 0x33000000; // PF.6, PF.7 defined as Outputs
GPIOF->CRH = 0x33; // PF.8, PF.9 defined as Outputs
while (1)
{
for(i = 1<<6; i < 1<<10; i <<= 1)
{
GPIOF->BSRR = i; // Turn LED on
wait(); // call wait function
GPIOF->BRR = i; // Turn LED off
}
}
}
void wait(void)
{
int d;
for(d = 0; d < 1000000; d++); // only to delay for LED flashes
}
#gpio #stm32
