Baremetal Core platform abstraction

Platform abstraction for core SDK functionality, see Baremetal platform abstraction for extended functionality. More...

Collaboration diagram for Baremetal Core platform abstraction:

Functions
void	BSP_WaitUs (u32_t us)
	Wait for specified Time in Microseconds (max. More...
void	BSP_Waiting (void)
	This function will be called repeatedly when the Baremetal drivers are blocking & waiting (eg. More...
u32_t	BSP_ReadAbsoluteTime (void)
	Get the number of milliseconds since program start. More...
void	BSP_WaitTicks (u32_t ticks)
	Wait for specified Time in Milliseconds. More...
void	BSP_ResetRF (u8_t ms)
	Reset CAX RF Chip. More...
u8_t	BSP_SenseRFIRQ (void)
	Sense whether SPI IRQ is high or low. More...
void	BSP_DisableRFIRQ (void)
	Inhibit SPI IRQ, suppresses interrupt but still latches it. More...
void	BSP_EnableRFIRQ (void)
	Allow SPI IRQ, re-enabling interrupt after BSP_DisableRFIRQ() More...
void	BSP_SetRFSSBHigh (void)
	Put SPI Select (SSB) Pin high. More...
void	BSP_SetRFSSBLow (void)
	Put SPI Select (SSB) Pin low. More...
void	BSP_SPIInit (void)
	Initialise GPIO and SPI Pins for Comms with CA-821X. More...
void	BSP_SPIExchange (u8_t *RxBuf, const u8_t *TxBuf, u8_t RxLen, u8_t TxLen)
	Exchange bytes over SPI, receiving into RxBuf and transferring from TxBuf. More...
bool	BSP_IsInsideInterrupt (void)
	Is the code running in an interrupt context? More...
void	BSP_SetSPIMOSIOutput (void)
	Connect MOSI port to SPI MOSI and disable pull-up. More...
void	BSP_SetSPIMOSITristate (void)
	Disconnect MOSI port from SPI MOSI and put to tristate with pull-up. More...
void	BSP_MicroTimerStart (void)
	start microseconds timer More...
u32_t	BSP_MicroTimerStop (void)
	stop microseconds timer More...
u32_t	BSP_MicroTimerGet (void)
	get microseconds timer while running More...
bool	BSP_IsCommsInterfaceEnabled (void)
	check if comms interface is connected More...

Detailed Description

Platform abstraction for core SDK functionality, see Baremetal platform abstraction for extended functionality.

Function Documentation

BSP_DisableRFIRQ()

void BSP_DisableRFIRQ

(

void

)

Inhibit SPI IRQ, suppresses interrupt but still latches it.

BSP_EnableRFIRQ()

void BSP_EnableRFIRQ

(

void

)

Allow SPI IRQ, re-enabling interrupt after BSP_DisableRFIRQ()

BSP_IsCommsInterfaceEnabled()

bool BSP_IsCommsInterfaceEnabled

(

void

)

check if comms interface is connected

Returns

true if comms are enabled

BSP_IsInsideInterrupt()

bool BSP_IsInsideInterrupt

(

void

)

Is the code running in an interrupt context?

Returns

true if in interrupt context

BSP_MicroTimerGet()

u32_t BSP_MicroTimerGet

(

void

)

get microseconds timer while running

Returns

time since start in [us]

BSP_MicroTimerStart()

void BSP_MicroTimerStart

(

void

)

start microseconds timer

BSP_MicroTimerStop()

u32_t BSP_MicroTimerStop

(

void

)

stop microseconds timer

Returns

time since start in [us]

BSP_ReadAbsoluteTime()

u32_t BSP_ReadAbsoluteTime

(

void

)

Get the number of milliseconds since program start.

Returns

The number of milliseconds since program start

BSP_ResetRF()

void BSP_ResetRF

(

u8_t

ms

)

Reset CAX RF Chip.

Parameters

ms	- Reset Low Time in [ms]

BSP_SenseRFIRQ()

u8_t BSP_SenseRFIRQ

(

void

)

Sense whether SPI IRQ is high or low.

Returns

State of IRQ pin of the CA821x

BSP_SetRFSSBHigh()

void BSP_SetRFSSBHigh

(

void

)

Put SPI Select (SSB) Pin high.

BSP_SetRFSSBLow()

void BSP_SetRFSSBLow

(

void

)

Put SPI Select (SSB) Pin low.

BSP_SetSPIMOSIOutput()

void BSP_SetSPIMOSIOutput

(

void

)

Connect MOSI port to SPI MOSI and disable pull-up.

BSP_SetSPIMOSITristate()

void BSP_SetSPIMOSITristate

(

void

)

Disconnect MOSI port from SPI MOSI and put to tristate with pull-up.

BSP_SPIExchange()

void BSP_SPIExchange	(	u8_t *	RxBuf,
		const u8_t *	TxBuf,
		u8_t	RxLen,
		u8_t	TxLen
	)

Exchange bytes over SPI, receiving into RxBuf and transferring from TxBuf.

Any bytes received after a count of RxLen MUST be discarded. Any bytes sent after a count of TxLen MUST have the value 0xFF. A total of MAX(RxLen, TxLen) bytes MUST be exchanged. When the exchange is complete, the BSP MUST call the SPI_ExchangeComplete function.

RFIRQ will be disabled before this function is called.

Parameters

RxBuf	Buffer to fill with received bytes. Must be at least RxLen big.
TxBuf	Buffer to send bytes from. Must be at least TxLen big.
RxLen	Count of bytes to receive before dumping all future bytes.
TxLen	Count of bytes to transmit before sending all 0xFF bytes.

BSP_SPIInit()

void BSP_SPIInit

(

void

)

Initialise GPIO and SPI Pins for Comms with CA-821X.

BSP_Waiting()

void BSP_Waiting

(

void

)

This function will be called repeatedly when the Baremetal drivers are blocking & waiting (eg.

WAIT_ms or WAIT_Callback), in case the BSP needs to do any system maintenance or wants to reduce power consumption.

BSP_WaitTicks()

void BSP_WaitTicks

(

u32_t

ticks

)

Wait for specified Time in Milliseconds.

Parameters

ticks

- Time in milliseconds

BSP_WaitUs()

void BSP_WaitUs

(

u32_t

us

)

Wait for specified Time in Microseconds (max.

999)

Parameters

us	- Time in microseconds