main.c File Reference

SPI bus explorer (execute SPI transactions by hand). More...

#include <neorv32.h>
#include <string.h>

Macros
User configuration
#define	BAUD_RATE   19200

Functions
void	spi_cs (uint32_t type)
void	spi_trans (void)
void	spi_setup (void)
void	aux_print_hex_byte (uint8_t byte)
int	main ()

Variables
uint32_t	spi_configured

Detailed Description

SPI bus explorer (execute SPI transactions by hand).

Author

Stephan Nolting

Macro Definition Documentation

BAUD_RATE

#define BAUD_RATE   19200

UART BAUD rate

Function Documentation

aux_print_hex_byte()

void aux_print_hex_byte

(

uint8_t

byte

)

Print HEX byte.

Parameters

[in]

byte

Byte to be printed as 2-cahr hex value.

main()

int main

(

void

)

This program provides an interactive console to communicate with SPI devices.

Note

This program requires the UART and the SPI to be synthesized.

Returns

Irrelevant.

spi_cs()

void spi_cs

(

uint32_t

type

)

Enable or disable chip-select line

Parameters

[in]

type

0=disable, 1=enable

spi_setup()

void spi_setup

(

void

)

Configure SPI module

spi_trans()

void spi_trans

(

void

)

SPI data transfer