dma.h File Reference

Headers for the driver for the DMA module. More...

#include "dma_cfg.h"

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Functions
void	DMA_Initialize (void)
	Enables the DMA module. More...
void	DMA_ReInit (void)
	Re-enables the DMA module. More...
STD_RETURN_TYPE_e	DMA_TransmitReceive_SPIwithDMA (void)
	Sends and receives data over SPI with DMA. More...
bool	DMA_IsTransmitOngoing (void)
	gets the SPI transmit status. More...
void	DMA_SetTransmitOngoing (void)
	sets the SPI transmit status. More...
bool	DMA_IsTxTransmitOngoingN775 (void)
	gets the SPI transmit status. More...
bool	DMA_IsRxTransmitOngoingN775 (void)
	gets the SPI transmit status. More...
void	DMA_SetTxTransmitOngoingN775 (void)
	sets the SPI transmit status. More...
void	DMA_SetRxTransmitOngoingN775 (void)
	sets the SPI transmit status. More...
void	DMA_InitN775 (void)
	enables the DMA module. This function enables the DMA streams. More...
void	DMA_ReInitN775Tx (void)
	Re-enables the DMA module. This function re-enables the DMA streams. Called in DMA complete interrupt. More...
void	DMA_ReInitN775Rx (void)
	Re-enables the DMA module. This function re-enables the DMA streams. Called in DMA complete interrupt. More...
STD_RETURN_TYPE_e	DMA_TransmitSPiWithDmaN775 (void)
	Sends data over SPI with DMA. More...

Variables
g_dmaCTRL	g_dmaCTRLPKT_TX
g_dmaCTRL	g_dmaCTRLPKT_RX
g_dmaCTRL	dma_n775DmaControlPacketTx
g_dmaCTRL	dma_n775DmaControlPacketRx

Detailed Description

Headers for the driver for the DMA module.

Copyright

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

SPDX-License-Identifier: BSD-3-Clause

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Author

foxBMS Team

Date

2019-12-12 (date of creation)

Updated

2019-12-12 (date of last update)

Prefix

DMA

Definition in file dma.h.

Function Documentation

DMA_Initialize()

void DMA_Initialize

(

void

)

Enables the DMA module.

This function enables the DMA streams.

Use Tx interrupt to transfer last word with CSHOLD = 0 DO NOT ACTIVATE FOR SLAVE SPI NODES (here SPI4 used as slave)

Definition at line 73 of file dma.c.

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DMA_InitN775()

void DMA_InitN775

(

void

)

enables the DMA module. This function enables the DMA streams.

DMA_IsRxTransmitOngoingN775()

bool DMA_IsRxTransmitOngoingN775

(

void

)

gets the SPI transmit status.

Returns

retval true if transmission still ongoing, false otherwise

DMA_IsTransmitOngoing()

bool DMA_IsTransmitOngoing

(

void

)

gets the SPI transmit status.

Returns

retval true if transmission still ongoing, false otherwise

DMA_IsTxTransmitOngoingN775()

bool DMA_IsTxTransmitOngoingN775

(

void

)

gets the SPI transmit status.

Returns

retval true if transmission still ongoing, false otherwise

DMA_ReInit()

void DMA_ReInit

(

void

)

Re-enables the DMA module.

This function re-enables the DMA streams. Called in DMA complete interrupt.

DMA_ReInitN775Rx()

void DMA_ReInitN775Rx

(

void

)

Re-enables the DMA module. This function re-enables the DMA streams. Called in DMA complete interrupt.

DMA_ReInitN775Tx()

void DMA_ReInitN775Tx

(

void

)

Re-enables the DMA module. This function re-enables the DMA streams. Called in DMA complete interrupt.

DMA_SetRxTransmitOngoingN775()

void DMA_SetRxTransmitOngoingN775

(

void

)

sets the SPI transmit status.

DMA_SetTransmitOngoing()

void DMA_SetTransmitOngoing

(

void

)

sets the SPI transmit status.

DMA_SetTxTransmitOngoingN775()

void DMA_SetTxTransmitOngoingN775

(

void

)

sets the SPI transmit status.

DMA_TransmitReceive_SPIwithDMA()

STD_RETURN_TYPE_e DMA_TransmitReceive_SPIwithDMA

(

void

)

Sends and receives data over SPI with DMA.

DMA_TransmitSPiWithDmaN775()

STD_RETURN_TYPE_e DMA_TransmitSPiWithDmaN775

(

void

)

Sends data over SPI with DMA.

Variable Documentation

dma_n775DmaControlPacketRx

g_dmaCTRL dma_n775DmaControlPacketRx

extern

rx control packet for N775 DMA

dma_n775DmaControlPacketTx

g_dmaCTRL dma_n775DmaControlPacketTx

extern

tx control packet for N775 DMA

g_dmaCTRLPKT_RX

g_dmaCTRL g_dmaCTRLPKT_RX

extern

rx control packet for DMA

g_dmaCTRLPKT_TX

g_dmaCTRL g_dmaCTRLPKT_TX

extern

tx control packet for DMA