19 lines
469 B
C
19 lines
469 B
C
|
#ifndef _SPI_H_
|
||
|
|
#define _SPI_H_
|
||
|
|
|
||
|
|
#define SPI_BASE (0x50000000)
|
||
|
|
#define SPI_CTRL (SPI_BASE + (0x00))
|
||
|
|
#define SPI_DATA (SPI_BASE + (0x04))
|
||
|
|
#define SPI_STATUS (SPI_BASE + (0x08))
|
||
|
|
|
||
|
|
#define SPI_REG(addr) (*((volatile uint32_t *)addr))
|
||
|
|
|
||
|
|
void spi_init();
|
||
|
|
void spi_set_ss(uint8_t level);
|
||
|
|
void spi_write_byte(uint8_t data);
|
||
|
|
void spi_write_bytes(uint8_t data[], uint32_t len);
|
||
|
|
uint8_t spi_read_byte();
|
||
|
|
void spi_read_bytes(uint8_t data[], uint32_t len);
|
||
|
|
|
||
|
|
#endif
|