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