spi_adapt

This porting file provides the adaptation layer for the host SPI interface. More...

Files
file	spi_adapt.c
	spi_adapt porting file

Functions
uint32_t	bytesToWord32s (uint32_t bytesLen)
int	SPI_ReadSync (uint8_t *data, uint32_t length)
	Read SPI data as master. More...
int	SPI_WriteSync (uint8_t *data, uint32_t length)
	Write SPI data as master. More...
void	spiInit ()
	Initialize and open the SPI module. More...

Detailed Description

This porting file provides the adaptation layer for the host SPI interface.

Function Documentation

SPI_ReadSync()

int SPI_ReadSync	(	uint8_t *	data,
		uint32_t	length
	)

Read SPI data as master.

Parameters

data	- buffer for output data
length	- length in bytes to read

Returns

0: success, -1: failed

Note

Warning

SPI_WriteSync()

int SPI_WriteSync	(	uint8_t *	data,
		uint32_t	length
	)

Write SPI data as master.

Parameters

data	- input buffer
length	- length in bytes to read

Returns

0: success, -1: failed

Note

Warning

spiInit()

void spiInit

(

)

Initialize and open the SPI module.

Parameters

data	- input buffer
length	- length in bytes to read

Returns

0: success, -1: failed

Note

1. If initializing all the MCU drivers at the beginning of the application, this function can stay empty. This function is called in Wlan_Start and will stay initialized even if Wlan_Stop is called.
2. The SPI interface must have the following parameters:
   • master
   • 4 pin mode SPI
   • chip select active low
   • polarity 0 phase 0
   • max frequency 40000000Hz
   • data block 32bits

Warning