75d5737211
Add a fully functional STM32F1 port, currently mostly targeting STM32F103 microcontrollers. This requires an 8 MHz XTAL. The maximum possible step rate is around 282K steps per second. This uses stm32flash to burn the firmware. The bootloader needs to be started by setting BOOT0 to 1 and resetting the MCU. There is no automatic bootloader, unlike on Arduino. Signed-off-by: Grigori Goronzy <greg@kinoho.net>
33 lines
789 B
C
33 lines
789 B
C
#ifndef __STM32F1_GPIO_H
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#define __STM32F1_GPIO_H
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#include <stdint.h>
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#include "stm32f1xx.h"
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void gpio_peripheral(char bank, uint32_t bit, char ptype, uint32_t pull_up);
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struct gpio_out {
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GPIO_TypeDef *regs;
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uint32_t bit;
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};
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struct gpio_out gpio_out_setup(uint8_t pin, uint8_t val);
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void gpio_out_toggle(struct gpio_out g);
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void gpio_out_write(struct gpio_out g, uint8_t val);
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struct gpio_in {
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GPIO_TypeDef *regs;
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uint32_t bit;
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};
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struct gpio_in gpio_in_setup(uint8_t pin, int8_t pull_up);
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uint8_t gpio_in_read(struct gpio_in g);
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struct gpio_adc {
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uint32_t bit;
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};
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struct gpio_adc gpio_adc_setup(uint8_t pin);
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uint32_t gpio_adc_sample(struct gpio_adc g);
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uint16_t gpio_adc_read(struct gpio_adc g);
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void gpio_adc_cancel_sample(struct gpio_adc g);
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#endif // gpio.h
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