HAL

LL_SPI_IsActiveFlag_BSY() is only used within HAL.

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SourceVuSTM32 Libraries and SamplesHALLL_SPI_IsActiveFlag_BSY()

LL_SPI_IsActiveFlag_BSY() function

Get busy flag

Syntax

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Summary

Declaration

from stm32f4xx_ll_spi.h:793

__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_BSY(SPI_TypeDef *SPIx);

Arguments

Argument

Description

SPIx

SPI Instance

Return value

State of bit (1 or 0).

Notes

The BSY flag is cleared under any one of the following conditions: -When the SPI is correctly disabled -When a fault is detected in Master mode (MODF bit set to 1) -In Master mode, when it finishes a data transmission and no new data is ready to be sent -In Slave mode, when the BSY flag is set to '0' for at least one SPI clock cycle between each data transfer.

Related Functions

Found 110 other functions taking a SPI_TypeDef argument:

Function

Description

LL_SPI_Enable()

Enable SPI peripheral

LL_SPI_SetTransferDirection()

Set transfer direction mode

LL_SPI_SetClockPhase()

Set clock phase

LL_SPI_SetClockPolarity()

Set clock polarity

LL_SPI_SetBaudRatePrescaler()

Set baud rate prescaler

LL_SPI_SetDataWidth()

Set frame data width

LL_SPI_SetNSSMode()

Set NSS mode

LL_SPI_SetMode()

Set SPI operation mode to Master or Slave

LL_SPI_IsActiveFlag_TXE()

Check if Tx buffer is empty

LL_SPI_EnableDMAReq_RX()

Enable DMA Rx

LL_SPI_EnableDMAReq_TX()

Enable DMA Tx

LL_SPI_DMA_GetRegAddr()

Get the data register address used for DMA transfer

LL_SPI_DisableIT_RXNE()

Disable Rx buffer not empty interrupt

LL_SPI_DisableIT_TXE()

Disable Tx buffer empty interrupt

LL_SPI_IsActiveFlag_RXNE()

Check if Rx buffer is not empty

LL_SPI_EnableIT_ERR()

Enable error interrupt

LL_SPI_IsActiveFlag_OVR()

Get overrun error flag

LL_SPI_TransmitData8()

Write 8-Bits in the data register

LL_SPI_EnableIT_RXNE()

Enable Rx buffer not empty interrupt

LL_SPI_EnableIT_TXE()

Enable Tx buffer empty interrupt

LL_SPI_Init()

Initialize the SPI registers according to the specified parameters in SPI_InitStruct.

LL_SPI_SetTransferBitOrder()

Set transfer bit order

LL_I2S_IsEnabled()

Check if I2S peripheral is enabled

LL_SPI_ReceiveData8()

Read 8-Bits in the data register

LL_SPI_ReceiveData16()

Read 16-Bits in the data register

LL_SPI_TransmitData16()

Write 16-Bits in the data register

LL_SPI_DeInit()

De-initialize the SPI registers to their default reset values.

LL_SPI_Disable()

Disable SPI peripheral

LL_SPI_IsEnabled()

Check if SPI peripheral is enabled

LL_SPI_IsActiveFlag_FRE()

Get frame format error flag

LL_SPI_ClearFlag_OVR()

Clear overrun error flag

LL_SPI_ClearFlag_FRE()

Clear frame format error flag

LL_SPI_SetCRCPolynomial()

Set polynomial for CRC calculation

LL_SPI_IsEnabledIT_TXE()

Check if Tx buffer empty interrupt

LL_SPI_DisableDMAReq_RX()

Disable DMA Rx

LL_SPI_IsEnabledDMAReq_RX()

Check if DMA Rx is enabled

LL_SPI_DisableDMAReq_TX()

Disable DMA Tx

LL_SPI_IsEnabledDMAReq_TX()

Check if DMA Tx is enabled

LL_SPI_DisableIT_ERR()

Disable error interrupt

LL_SPI_IsEnabledIT_ERR()

Check if error interrupt is enabled

LL_SPI_IsEnabledIT_RXNE()

Check if Rx buffer not empty interrupt is enabled

LL_I2S_DeInit()

De-initialize the SPI/I2S registers to their default reset values.

LL_I2S_Init()

Initializes the SPI/I2S registers according to the specified parameters in I2S_InitStruct.

LL_I2S_ConfigPrescaler()

Set linear and parity prescaler.

LL_I2S_InitFullDuplex()

Configures the full duplex mode for the I2Sx peripheral using its extension I2Sxext according to the specified parameters in the I2S_InitStruct.

LL_SPI_GetMode()

Get SPI operation mode (Master or Slave) CR1 SSI LL_SPI_GetMode

LL_SPI_SetStandard()

Set serial protocol used

LL_SPI_GetStandard()

Get serial protocol used

LL_SPI_GetNSSMode()

Get NSS mode

LL_SPI_IsActiveFlag_CRCERR()

Get CRC error flag

LL_SPI_IsActiveFlag_MODF()

Get mode fault error flag

LL_SPI_GetClockPhase()

Get clock phase

LL_SPI_GetClockPolarity()

Get clock polarity

LL_SPI_GetBaudRatePrescaler()

Get baud rate prescaler

LL_SPI_ClearFlag_CRCERR()

Clear CRC error flag

LL_SPI_ClearFlag_MODF()

Clear mode fault error flag

LL_SPI_GetTransferBitOrder()

Get transfer bit order

LL_SPI_GetTransferDirection()

Get transfer direction mode CR1 BIDIMODE LL_SPI_GetTransferDirection\n CR1 BIDIOE LL_SPI_GetTransferDirection

LL_SPI_GetDataWidth()

Get frame data width

LL_SPI_EnableCRC()

Enable CRC

LL_SPI_DisableCRC()

Disable CRC

LL_SPI_IsEnabledCRC()

Check if CRC is enabled

LL_SPI_SetCRCNext()

Set CRCNext to transfer CRC on the line

LL_SPI_GetCRCPolynomial()

Get polynomial for CRC calculation

LL_SPI_GetRxCRC()

Get Rx CRC

LL_SPI_GetTxCRC()

Get Tx CRC

LL_I2S_Enable()

Select I2S mode and Enable I2S peripheral I2SCFGR I2SE LL_I2S_Enable

LL_I2S_Disable()

Disable I2S peripheral

LL_I2S_SetDataFormat()

Set I2S data frame length I2SCFGR CHLEN LL_I2S_SetDataFormat

LL_I2S_GetDataFormat()

Get I2S data frame length I2SCFGR CHLEN LL_I2S_GetDataFormat

LL_I2S_IsActiveFlag_RXNE()

Check if Rx buffer is not empty

LL_I2S_IsActiveFlag_TXE()

Check if Tx buffer is empty

LL_I2S_IsActiveFlag_BSY()

Get busy flag

LL_I2S_IsActiveFlag_OVR()

Get overrun error flag

LL_I2S_IsActiveFlag_UDR()

Get underrun error flag

LL_I2S_IsActiveFlag_FRE()

Get frame format error flag

LL_I2S_IsActiveFlag_CHSIDE()

Get channel side flag.

LL_I2S_ClearFlag_OVR()

Clear overrun error flag

LL_I2S_ClearFlag_UDR()

Clear underrun error flag

LL_I2S_ClearFlag_FRE()

Clear frame format error flag

LL_I2S_EnableIT_ERR()

Enable error IT

LL_I2S_SetClockPolarity()

Set I2S clock polarity

LL_I2S_GetClockPolarity()

Get I2S clock polarity

LL_I2S_SetStandard()

Set I2S standard protocol I2SCFGR PCMSYNC LL_I2S_SetStandard

LL_I2S_GetStandard()

Get I2S standard protocol I2SCFGR PCMSYNC LL_I2S_GetStandard

LL_I2S_SetTransferMode()

Set I2S transfer mode

LL_I2S_GetTransferMode()

Get I2S transfer mode

LL_I2S_SetPrescalerLinear()

Set I2S linear prescaler

LL_I2S_GetPrescalerLinear()

Get I2S linear prescaler

LL_I2S_SetPrescalerParity()

Set I2S parity prescaler

LL_I2S_GetPrescalerParity()

Get I2S parity prescaler

LL_I2S_EnableMasterClock()

Enable the master clock output (Pin MCK)

LL_I2S_DisableMasterClock()

Disable the master clock output (Pin MCK)

LL_I2S_IsEnabledMasterClock()

Check if the master clock output (Pin MCK) is enabled

LL_I2S_ReceiveData16()

Read 16-Bits in data register

LL_I2S_TransmitData16()

Write 16-Bits in data register

LL_I2S_EnableIT_RXNE()

Enable Rx buffer not empty IT

LL_I2S_EnableIT_TXE()

Enable Tx buffer empty IT

LL_I2S_DisableIT_ERR()

Disable error IT

LL_I2S_DisableIT_RXNE()

Disable Rx buffer not empty IT

LL_I2S_DisableIT_TXE()

Disable Tx buffer empty IT

LL_I2S_IsEnabledIT_ERR()

Check if ERR IT is enabled

LL_I2S_IsEnabledIT_RXNE()

Check if RXNE IT is enabled

LL_I2S_IsEnabledIT_TXE()

Check if TXE IT is enabled

LL_I2S_EnableDMAReq_RX()

Enable DMA Rx

LL_I2S_DisableDMAReq_RX()

Disable DMA Rx

LL_I2S_IsEnabledDMAReq_RX()

Check if DMA Rx is enabled

LL_I2S_EnableDMAReq_TX()

Enable DMA Tx

LL_I2S_DisableDMAReq_TX()

Disable DMA Tx

LL_I2S_IsEnabledDMAReq_TX()

Check if DMA Tx is enabled

Examples

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