nxp_mc33775a.h

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 *
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/**
 * @file    nxp_mc33775a.h
 * @author  foxBMS Team
 * @date    2020-05-08 (date of creation)
 * @updated 2023-02-03 (date of last update)
 * @version v1.5.0
 * @ingroup DRIVERS
 * @prefix  N775
 *
 * @brief   Headers for the driver for the MC33775A analog front-end.
 *
 */
 
#ifndef FOXBMS__NXP_MC33775A_H_
#define FOXBMS__NXP_MC33775A_H_
 
/*========== Includes =======================================================*/
#include "nxp_mc33775a_cfg.h"
 
#include <stdint.h>
 
/*========== Macros and Definitions =========================================*/
 
/*========== Extern Constant and Variable Declarations ======================*/
 
/**
 * Variable containing the state machine state for the MC33775A driver.
 */
extern N775_STATE_s n775_stateBase;
 
/*========== Extern Function Prototypes =====================================*/
 
/**
 * @brief   trigger function for the N775 driver state machine.
 *
 * This function contains the sequence of events in the N775 state machine.
 * It must be called time-triggered, every 1ms.
 *
 * @param  n775_state  state of the N775A driver
 *
 */
extern void N775_Meas(N775_STATE_s *n775_state);
 
/**
 * @brief   gets the measurement initialization status.
 *
 * @param   n775_state  state of the N775A driver
 *
 * @return  true if a first measurement cycle was made, false otherwise
 *
 */
extern bool N775_IsFirstMeasurementCycleFinished(N775_STATE_s *n775_state);
 
/**
 * @brief   trigger a write on the I2C bus of the slave.
 *
 * @param  module         module number to address in the daisy-chain
 * @param  deviceAddress  address of the I2C device addressed
 * @param  pData          data to write on I2C bus
 * @param  dataLength     number of bytes to write
 *
 */
extern STD_RETURN_TYPE_e N775_I2cWrite(uint8_t module, uint8_t deviceAddress, uint8_t *pData, uint8_t dataLength);
 
/**
 * @brief   trigger a read on the I2C bus of the slave, first write address of register to read.
 *
 * @param  module           module number to address in the daisy-chain
 * @param  deviceAddress    address of the I2C device addressed
 * @param  pDataWrite       data written on I2C bus
 * @param  writeDataLength  number of bytes to write
 * @param  pDataRead       data read on I2C bus
 * @param  readDataLength  number of bytes to read
 *
 */
extern STD_RETURN_TYPE_e N775_I2cWriteRead(
    uint8_t module,
    uint8_t deviceAddress,
    uint8_t *pDataWrite,
    uint8_t writeDataLength,
    uint8_t *pDataRead,
    uint8_t readDataLength);
/**
 * @brief   trigger a read on the I2C bus of the slave.
 *
 * @param  module         module number to address in the daisy-chain
 * @param  deviceAddress  address of the I2C device addressed
 * @param  pData          data read on I2C bus
 * @param  dataLength     number of bytes to read
 *
 */
extern STD_RETURN_TYPE_e N775_I2cRead(uint8_t module, uint8_t deviceAddress, uint8_t *pData, uint8_t dataLength);
 
/*========== Externalized Static Functions Prototypes (Unit Test) ===========*/
#ifdef UNITY_UNIT_TEST
/* Start test functions */
extern uint8_t TEST_N775_CheckReEntrance();
extern void TEST_N775_SetFirstMeasurementCycleFinished(N775_STATE_s *n775_state);
/* End test functions */
#endif
 
#endif /* FOXBMS__NXP_MC33775A_H_ */