nxt_spi.h

来自「专业汽车级嵌入式操作系统OSEK的源代码」· C头文件 代码 · 共 22 行

#ifndef __NXT_SPI_H__
#  define __NXT_SPI_H__

#  include "mytypes.h"

/*
 * Note that this is not a normal SPI interface, 
 * it is a bodged version as used by the NXT's 
 * display.
 *
 * The display does not use MISO because you can
 * only write to it in serial mode.
 *
 * Instead, the MISO pin is not used by the SPI
 * and is instead driven as a PIO pin for controlling CD.
 */

void nxt_spi_init(void);
void nxt_spi_write(U32 CD, const U8 *data, U32 nBytes);

#endif