/* *Copyright ,2023 , NANOCHAP *File name: ENS1_SPI.H *Author: *Version: V1.0 *Date: 2023-11- *Description: *Function List: 1 uint8_t READ_SPI_MODE(CMSDK_SPI_TypeDef* SPIx) 2 uint8_t CLR_TX_FIFO(CMSDK_SPI_TypeDef* SPIx) 3 uint8_t CLR_RX_FIFO(CMSDK_SPI_TypeDef* SPIx) 4 uint8_t RX_FIFO_LEN(CMSDK_SPI_TypeDef* SPIx) 5 uint8_t TX_FIFO_LEN(CMSDK_SPI_TypeDef* SPIx) 6 SPI_BUSY_STATE BUSY_STATE(CMSDK_SPI_TypeDef* SPIx) 7 uint8_t RX_FIFO_FULL(CMSDK_SPI_TypeDef* SPIx) 8 uint8_t RX_FIFO_EMPTY(CMSDK_SPI_TypeDef* SPIx) 9 uint8_t TX_FIFO_FULL(CMSDK_SPI_TypeDef* SPIx) 10 uint8_t TX_FIFO_EMPTY(CMSDK_SPI_TypeDef* SPIx) 11 uint8_t SPI_FIFO_STATE(CMSDK_SPI_TypeDef* SPIx) 12 uint8_t SPI_FIFO_ENABLE(CMSDK_SPI_TypeDef* SPIx ) 13 uint8_t SPI_FIFO_DISABLE(CMSDK_SPI_TypeDef* SPIx ) 14 uint8_t SPI_FIFODMA_SET(CMSDK_SPI_TypeDef* SPIx ,bool TXDMA_SET ,bool RXDMA_SET) 15 uint8_t SPI_NSS_CHANNEL(CMSDK_SPI_TypeDef* SPIx ,NSS_CHANNEL_SEL NSSx ,FunctionalState ENorDIS) 16 uint8_t SPI_Config_init(CMSDK_SPI_TypeDef* SPIx , struct SPI_ModeConfig_Struct SPI_Config ,struct SPI_FIFO_Struct FIFO_Struct) 17 uint8_t SPI_START(CMSDK_SPI_TypeDef* SPIx) 18 uint8_t SPI_STOP(CMSDK_SPI_TypeDef* SPIx) 19 uint16_t READ_SPI_RCVBuff(CMSDK_SPI_TypeDef* SPIx ) 20 void WRITE_SPI_THRBuff(CMSDK_SPI_TypeDef* SPIx,uint8_t data) 21 uint8_t SPI_INT_SET(IRQn_Type IRQn, bool SPI_INT_ENABLE, uint8_t SPI_INT_BIT_SET) History: 1.V1.0 Date: Author: Modification: 初版 */ #ifndef ENS1_SPI_H #define ENS1_SPI_H #include "my_header.h" /* 一、引脚关系： ALT Function2 SPI1_SCK --- GPIO16 SPI1_MOSI --- GPIO17 SPI1_MISO --- GPIO18 SPI1_NSS0 --- GPIO19 SPI1_NSS1 --- GPIO2 SPI1_NSS2 --- GPIO3 SPI1_NSS3 --- GPIO4 ALT Function2 SPI0_SCK --- GPIO8 SPI0_MOSI --- GPIO9 SPI0_MISO --- GPIO10 SPI0_NSS0 --- GPIO11 SPI0_NSS1 --- GPIO13 SPI0_NSS2 --- GPIO14 SPI0_NSS3 --- GPIO15 二、SPI功能列表说明： 三条线路上的全双工同步传输 双线半双工同步传输 两线单工同步传输（带单向数据线） 16*16bits FIFO 收发缓冲区 4-16位数据大小选择 主模式波特率发生器高达Fpclk/2 从模式波特率发生器高达Fpclk/4 软件或硬件管理 NSS 可编程时钟极性和相位 可编程的数据顺序与MSB或LSB移位 DMA事件支持 中断支持 */ typedef enum {MASTER = 1 ,SLAVE= 0}MASTER_SLAVE_SEL; typedef enum {NSS0= 8 ,NSS1 ,NSS2 ,NSS3}NSS_CHANNEL_SEL ; typedef enum {NOTBUSY = 0, BUSY}SPI_BUSY_STATE ; typedef enum {EMPTY=0,FULL}FIFO_FULL_EMPTY_STATE; struct SPI_ModeConfig_Struct { uint8_t BAUD_FPCLKdivx ; //波特率分频系数 uint8_t SPI_MODE ; //SPI工作模式 uint8_t SPI_TRANS_MODE; //传输模式选择 MASTER_SLAVE_SEL MS_SEL; //主从模式选择 uint16_t CHAR_LEN ; //设置传输长度 （4 - 16 bit） NSS_CHANNEL_SEL NSSx ; uint8_t SAMP_PHASE ; }; struct SPI_FIFO_Struct //设置FIFO及DMA传输 { uint8_t TX_FIFO_TH; // 0 - 16 char uint8_t RX_FIFO_TH; // 0 - 16 char bool FIFO_ENABLE_SET; bool TXDMA_SET; //选择是否启动DMA(fifo开启的前提下) bool RXDMA_SET; }; /* 中断类型使能结构体 1、发送部分有 下溢 中断（发送数据没有啦） 2、接收部分有 溢出 中断（接满啦） 3、收发完成中断？ 4、发送缓冲区空 中断 5、接收缓冲区非空 中断 */ //中断使能 #define UNDERRUN_INT_EN (uint8_t)0x10 #define OVERRUN_INT_EN (uint8_t)0x8 #define CMPL_INT_EN (uint8_t)0x4 #define TXE_INT_EN (uint8_t)0x2 #define RXNE_INT_EN (uint8_t)0x1 //判断是否检测到对应的中断 #define UNDERRUN_INT (uint8_t)0x10 #define OVERRUN_INT (uint8_t)0x8 #define CMPL_INT (uint8_t)0x4 #define TXE_INT (uint8_t)0x2 #define RXNE_INT (uint8_t)0x1 /*模式： | 接线方式： 主机 从机 全双工 | MISO/MOSI MISO/MOSI 半双工 | MOSI MISO 主机仅发送，从机仅接收模式 | MOSI MOSI 主机仅接收，从机仅发送模式 | MISO MISO SPI_TRANS_MODE 传输模式选择： 2线单向 / 1线双向 收+发 / 仅发 /仅收/ 单向仅发送 / 仅接收 */ #define L2_UniDirect_TandR (uint8_t)0x0 //BIT[15:12] 0 0 00 #define L2_UniDirect_T (uint8_t)0x1 //BIT[15:12] 0 0 01 #define L2_UniDirect_R (uint8_t)0x2 //BIT[15:12] 0 0 10 #define L1_BiDirect_T (uint8_t)0x8 //BIT[15:12] 1 0 00 #define L1_BiDirect_R (uint8_t)0xc//BIT[15:12] 1 1 00 /*NSS相关设置*/ #define NSS_PULSE 1 //有nss #define NO_NSS_PULSE 0 //没有nss #define NSS_ASSERTED 0 // #define NSS_DEASSERYED 1 //软件发出nss信号 #define NSS_CTRL_HW 0 //设置为硬件生成NSS #define NSS_CTRL_SW 1 //设置为软件生成NSS /*波特率设置*/ #define BAUD_FPCLKdiv2 (uint8_t)0x0 #define BAUD_FPCLKdiv4 (uint8_t)0x1 #define BAUD_FPCLKdiv8 (uint8_t)0x2 #define BAUD_FPCLKdiv16 (uint8_t)0x3 #define BAUD_FPCLKdiv32 (uint8_t)0x4 #define BAUD_FPCLKdiv64 (uint8_t)0x5 #define BAUD_FPCLKdiv128 (uint8_t)0x6 #define BAUD_FPCLKdiv256 (uint8_t)0x7 /*SPI_MODE 工作模式选择*/ #define SPI_MODE0 (uint8_t)0x0 //bit[3:2] 00 #define SPI_MODE1 (uint8_t)0x1 // 01 #define SPI_MODE2 (uint8_t)0x2 // 10 #define SPI_MODE3 (uint8_t)0x3 // 11 /*SAMP_PHASE 选项*/ #define PRE_1_PCLK_PERIOD (uint8_t)0X0 #define SAMP_PHASE_NORMAL (uint8_t)0X1 #define DELAY_1_PCLK_PERIOD (uint8_t)0X2 #define DELAY_2_PCLK_PERIOD (uint8_t)0X3 /*****************************声明 和 定义***************************/ #define SPI0_CS_SET GPIO_SetOutput(GPIO_11) #define SPI0_CS_RESET GPIO_ResetOutput(GPIO_11) #define SPI1_CS_SET GPIO_SetOutput(GPIO_19) #define SPI1_CS_RESET GPIO_ResetOutput(GPIO_19) //读SPI当前设置的模式 extern uint8_t READ_SPI_MODE(CMSDK_SPI_TypeDef* SPIx); /*清除FIFO和计数清0*/ extern uint8_t CLR_TX_FIFO(CMSDK_SPI_TypeDef* SPIx); extern uint8_t CLR_RX_FIFO(CMSDK_SPI_TypeDef* SPIx) ; /*FIFO 状态读取*/ extern uint8_t RX_FIFO_LEN(CMSDK_SPI_TypeDef* SPIx); //读取当前接收FIFO数据长度 extern uint8_t TX_FIFO_LEN(CMSDK_SPI_TypeDef* SPIx) ; //读取当前发送FIFO数据长度 extern SPI_BUSY_STATE BUSY_STATE(CMSDK_SPI_TypeDef* SPIx) ; //读取当前SPI是否繁忙 extern uint8_t RX_FIFO_FULL(CMSDK_SPI_TypeDef* SPIx) ; //当前读取FIFO是否为满？ extern uint8_t RX_FIFO_EMPTY(CMSDK_SPI_TypeDef* SPIx) ; //当前读取FIFO是否为空？ extern uint8_t TX_FIFO_FULL(CMSDK_SPI_TypeDef* SPIx) ;//当前发送FIFO是否为满？ extern uint8_t TX_FIFO_EMPTY(CMSDK_SPI_TypeDef* SPIx) ; //当前发送FIFO是否为空？ extern uint8_t SPI_FIFO_STATE(CMSDK_SPI_TypeDef* SPIx); extern uint8_t SPI_FIFO_ENABLE(CMSDK_SPI_TypeDef* SPIx ); //FIFO功能使能 extern uint8_t SPI_FIFO_DISABLE(CMSDK_SPI_TypeDef* SPIx ); //FIFO功能失能 extern uint8_t SPI_FIFODMA_SET(CMSDK_SPI_TypeDef* SPIx ,bool TXDMA_SET ,bool RXDMA_SET); //DMA设置 extern uint8_t SPI_NSS_CHANNEL(CMSDK_SPI_TypeDef* SPIx ,NSS_CHANNEL_SEL NSSx ,FunctionalState ENorDIS); //nss通道选择 extern uint8_t SPI_Config_init(CMSDK_SPI_TypeDef* SPIx , struct SPI_ModeConfig_Struct SPI_Config ,struct SPI_FIFO_Struct FIFO_Struct); //spi的初始配置 extern uint8_t SPI_START(CMSDK_SPI_TypeDef* SPIx); extern uint8_t SPI_STOP(CMSDK_SPI_TypeDef* SPIx); //读被接收的数据 最多16bits extern uint16_t READ_SPI_RCVBuff(CMSDK_SPI_TypeDef* SPIx ); //写数据 extern void WRITE_SPI_THRBuff(CMSDK_SPI_TypeDef* SPIx,uint8_t data); extern uint8_t SPI_INT_SET(IRQn_Type IRQn, bool SPI_INT_ENABLE, uint8_t SPI_INT_BIT_SET); #endif