41 wiersze
715 B
C
41 wiersze
715 B
C
/*
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* (c) danielinux 2019
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* GPLv.2
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*
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* See LICENSE for details
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*/
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#include <stdint.h>
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#include "system.h"
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#include "led.h"
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void led_setup(uint32_t led)
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{
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uint32_t reg;
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AHB1_CLOCK_ER |= GPIOA_AHB1_CLOCK_ER;
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reg = GPIOA_MODE & ~ (0x03 << (led * 2));
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GPIOA_MODE = reg | (1 << (led * 2));
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reg = GPIOA_PUPD & (0x03 << (led * 2));
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GPIOA_PUPD = reg | (0x02 << (led * 2));
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led_off(led);
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}
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void pio_on(uint32_t pio)
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{
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GPIOA_BSRR |= (1 << pio);
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}
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void pio_off(uint32_t pio)
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{
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GPIOA_BSRR |= (1 << (pio + 16));
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}
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void pio_toggle(uint32_t pio)
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{
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uint32_t reg;
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reg = GPIOA_ODR;
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if ((reg & (1 << pio)) == (1 << pio))
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pio_off(pio);
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else
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pio_on(pio);
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}
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