luat_spi.h 文件参考

#include "luat_base.h"

浏览该文件的源代码.

结构体
struct	luat_spi
struct	luat_spi_device
struct	luat_fatfs_spi

类型定义
typedef struct luat_spi	luat_spi_t
typedef struct luat_spi_device	luat_spi_device_t
typedef struct luat_fatfs_spi	luat_fatfs_spi_t

函数
int	luat_spi_setup (luat_spi_t *spi)
	初始化配置SPI各项参数，并打开SPI luat_spi_t 结构体参数 spiId,–串口id cs, 0,–CPHA 0,–CPOL 8,–数据宽度 20000000,–最大频率20M spi.MSB,–高低位顺序 可选，默认高位在前 spi.master,–主模式 可选，默认主 spi.full,–全双工 可选，默认全双工
int	luat_spi_config_dma (int spi_id, uint32_t tx_channel, uint32_t rx_channel)
	SPI收发数据尝试启动DMA模式
int	luat_spi_close (int spi_id)
	关闭SPI
int	luat_spi_transfer (int spi_id, const char *send_buf, size_t send_length, char *recv_buf, size_t recv_length)
	收发SPI数据
int	luat_spi_recv (int spi_id, char *recv_buf, size_t length)
	收SPI数据
int	luat_spi_send (int spi_id, const char *send_buf, size_t length)
	发SPI数据
int	luat_spi_change_speed (int spi_id, uint32_t speed)
	SPI速率修改
int	luat_spi_no_block_transfer (int spi_id, uint8_t *tx_buff, uint8_t *rx_buff, size_t len, void *CB, void *pParam)
	SPI收发数据(异步)
int	luat_spi_get_mode (int spi_id)
	SPI模式获取
int	luat_spi_set_mode (int spi_id, uint8_t mode)
	SPI模式修改
int	luat_spi_bus_setup (luat_spi_device_t *spi_dev)
	spi总线初始化
int	luat_spi_device_setup (luat_spi_device_t *spi_dev)
	spi设备初始化
int	luat_spi_device_config (luat_spi_device_t *spi_dev)
	spi设备配置
int	luat_spi_device_close (luat_spi_device_t *spi_dev)
	spi设备关闭
int	luat_spi_device_transfer (luat_spi_device_t *spi_dev, const char *send_buf, size_t send_length, char *recv_buf, size_t recv_length)
	spi设备收发数据，返回接收字节数
int	luat_spi_device_recv (luat_spi_device_t *spi_dev, char *recv_buf, size_t length)
	spi设备接收数据，返回接收字节数
int	luat_spi_device_send (luat_spi_device_t *spi_dev, const char *send_buf, size_t length)
	spi设备发送数据，返回接收字节数