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/* dfu.c */
extern const struct usb_dfu_descriptor dfu_function;
extern const struct usb_interface_descriptor dfu_iface;
extern int dfu_control_request(usbd_device *usbd_dev, struct usb_setup_data *req, uint8_t **buf, uint16_t *len, int (**complete)(usbd_device *usbd_dev, struct usb_setup_data *req));
/* crypto.c */
extern const struct usb_endpoint_descriptor crypto_endpoint;
extern const struct usb_interface_descriptor crypto_iface;
extern void crypto_get_descriptor(uint8_t **buf, uint16_t *len);
extern void crypto_test(void);
/* main.c */
extern int main(void);
/* usb.c */
extern const struct usb_device_descriptor dev;
extern const struct usb_interface ifaces[];
extern const struct usb_config_descriptor config;
extern usbd_device *usbd_dev;
extern int usb_is_suspended;
extern int usb_wakeup_host(void);
extern void usb_set_config(usbd_device *usbd_dev, uint16_t wValue);
extern void usb_init(void);
extern void usb_run(void);
/* led.c */
extern void led_init(void);
extern void led_blink(void);
extern void led_tick(void);
/* ticker.c */
extern volatile uint32_t ticks;
extern void delay_us(uint32_t d);
extern void sys_tick_handler(void);
extern void delay_ms(uint32_t d);
extern int timed_out(uint32_t then, unsigned int ms);
extern void ticker_init(void);
/* i2c.c */
extern int i2c1_bb(int scl, int sda);
extern void i2c1_bb_start(void);
extern void i2c1_bb_stop(void);
extern int i2c1_bb_send_data(uint8_t v);
extern int i2c1_bb_start_transaction(uint8_t a, int wnr);
extern void i2c1_bb_init(void);
/* lcd.c */
extern uint8_t fb[2][16];
extern uint8_t shadow[2][16];
extern void lcd_refresh(void);
extern void lcd_tick(void);
extern void lcd_write_char(uint8_t c, int x, int y);
extern void lcd_erase(int x, int y, int w);
extern void lcd_erase_line(int w, int y);
extern void lcd_erase_all(void);
extern void lcd_write(char *c, int x, int y);
extern void lcd_backlight(int i);
extern void lcd_reset(void);
extern void lcd_init(void);
extern void lcd_shutdown(void);
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