28 lines
537 B
C
28 lines
537 B
C
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#include <stm32f0xx.h>
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unsigned int i = 0x12345678;
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unsigned char c = 2;
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#define OUTPUT(pin) (0x01 << (pin * 2))
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#define ALTFUNC(pin) ((0x2) << (pin * 2))
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#define PINMASK(pin) ((0x3) << (pin * 2))
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#define SETAF(PORT,PIN,AF) PORT->AFR[(PIN < 8 ? 0 : 1)] |= AF << ((PIN < 8 ? PIN : (PIN - 8)) * 4)
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int main(void) {
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RCC->AHBENR |= RCC_AHBENR_GPIOFEN;
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GPIOF->MODER |= OUTPUT(0);
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GPIOF->ODR |= (1<<0);
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SysTick_Config(800000);
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while(1) {
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i++;
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}
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}
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void SysTick_Handler(void) {
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/* Blink bad air LED */
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GPIOF->ODR ^= (1<<0);
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}
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