28 lines
374 B
C
28 lines
374 B
C
/*
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* main.c
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*
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* Created on: Apr 25, 2015
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* Author: mari
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*/
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#include <stm32f4xx.h>
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//include <arm_math.h>
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#include <system_stm32f4xx.h>
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#define OUTPUT(pin) (0b01 << (pin * 2))
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int main() {
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RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN;
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__DSB();
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GPIOD->MODER = OUTPUT(12);
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SysTick_Config(8*1680000);
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while(1);
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}
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void SysTick_Handler()
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{
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GPIOD->ODR ^= (1<<12);
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}
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