stm32_usart.h

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/**
 * \file    heivs/stm32_usart.h
 * \brief   usart bus
 * \author  marc dot pignat at hevs dot ch
 *
 * \defgroup usart_bus USART bus
 * @{
 * \brief USART (Universal Synchronous Asynchronous Receiver Transmitter) bus.
 * \ingroup bus
 *
 * USART or UART implements the RS232 specification.
 *
 ***************************************************************************/
#ifndef HEIVS_STM32_USART_H
#define HEIVS_STM32_USART_H

#include "heivs/bus.h"
#include "heivs/stm32_gpio.h"
#include "heivs/bsp.h"

/**
 * \brief USART specific data
 */
struct usart_bus_private_t
{
    USART_TypeDef *ctrl;            ///< Controller
    const struct gpio_t gpios[2];   ///< Gpios
    uint32_t speed;                 ///< Baudrate
};

#ifdef __cplusplus
    extern "C" {
#endif

/**
 * \brief All USART busses
 */
extern const struct heivs_bus_t bus_usart[BSP_USART_BUS_COUNT];

#ifdef __cplusplus
}
#endif

/**
 * @}
 */
#endif /* HEIVS_STM32_USART_H */