n775.h File Reference

Headers for the driver for the MC33775A monitoring chip. More...

#include "n775_cfg.h"

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Functions
void	N775_Trigger (void)
	trigger function for the N775 driver state machine. More...
N775_RETURN_TYPE_e	N775_SetStateRequest (N775_STATE_REQUEST_e statereq)
	sets the current state request of the state variable n775_state. More...
bool	N775_IsFirstMeasurementCycleFinished (void)
	gets the measurement initialization status. More...
void	N775_SaveVoltages (void)
void	N775_SaveTemperatures (void)
N775_STATE_REQUEST_e	N775_GetStateRequest (void)
	gets the current state request. More...
N775_STATEMACH_e	N775_GetState (void)
	gets the current state. More...

Variables
uint16_t	n775_RXbuffer [N775_MAX_N_BYTES_FOR_DATA_RECEPTION]
uint16_t	n775_TXbuffer [N775_TX_MESSAGE_LENGTH]
N775_MESSAGE_s	n775_sentData
N775_MESSAGE_s	n775_receivedData
N775_STATE_s	n775_state

Detailed Description

Headers for the driver for the MC33775A monitoring chip.

Copyright

© 2010 - 2021, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. All rights reserved.

SPDX-License-Identifier: BSD-3-Clause

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

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Author

foxBMS Team

Date

2020-05-08 (date of creation)

Updated

2020-05-08 (date of last update)

Prefix

N775

Definition in file n775.h.

Function Documentation

N775_GetState()

N775_STATEMACH_e N775_GetState

(

void

)

gets the current state.

This function is used in the functioning of the N775 state machine.

Returns

current state, taken from N775_STATEMACH_e

Definition at line 315 of file n775.c.

N775_GetStateRequest()

N775_STATE_REQUEST_e N775_GetStateRequest

(

void

)

gets the current state request.

This function is used in the functioning of the N775 state machine.

Returns

retval current state request, taken from N775_STATE_REQUEST_e

Definition at line 298 of file n775.c.

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N775_IsFirstMeasurementCycleFinished()

bool N775_IsFirstMeasurementCycleFinished

(

void

)

gets the measurement initialization status.

Returns

retval true if a first measurement cycle was made, false otherwise

Definition at line 532 of file n775.c.

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N775_SaveTemperatures()

void N775_SaveTemperatures

(

void

)

N775_SaveVoltages()

void N775_SaveVoltages

(

void

)

N775_SetStateRequest()

N775_RETURN_TYPE_e N775_SetStateRequest

(

N775_STATE_REQUEST_e

statereq

)

sets the current state request of the state variable n775_state.

This function is used to make a state request to the state machine,e.g, start voltage measurement, read result of voltage measurement, re-initialization It calls N775_CheckStateRequest() to check if the request is valid. The state request is rejected if is not valid. The result of the check is returned immediately, so that the requester can act in case it made a non-valid state request.

Parameters

statereq

state request to set

Returns

retVal current state request, taken from N775_STATE_REQUEST_e

Definition at line 339 of file n775.c.

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N775_Trigger()

void N775_Trigger

(

void

)

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.

Definition at line 353 of file n775.c.

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Variable Documentation

n775_receivedData

N775_MESSAGE_s n775_receivedData

extern

Struct used for SPI Rx transmissions for the communicaiton with MC33775A.

Definition at line 86 of file n775.c.

n775_RXbuffer

uint16_t n775_RXbuffer[N775_MAX_N_BYTES_FOR_DATA_RECEPTION]

extern

Buffer used for SPI Rx transmissions for the communication with MC33775A.

Definition at line 81 of file n775.c.

n775_sentData

N775_MESSAGE_s n775_sentData

extern

Struct used for SPI Tx transmissions for the communicaiton with MC33775A.

Definition at line 85 of file n775.c.

n775_state

N775_STATE_s n775_state

extern

Variable containing the state machine state for the MC33775A driver.

Definition at line 108 of file n775.c.

n775_TXbuffer

uint16_t n775_TXbuffer[N775_TX_MESSAGE_LENGTH]

extern

Buffer used for SPI Tx transmissions for the communication with MC33775A.

Definition at line 82 of file n775.c.