STM32 BSP LPSPI Library Implementation

#include "bsp_lpspi.h"
SPI_HandleTypeDef SpiHandle;
void Spi_delay(uint32_t count){     volatile uint32_t i = 0;    for (i = 0; i < count; ++i)    {        __asm("NOP"); /* Call nop empty instruction */         __asm("NOP"); /* Call nop empty instruction */          __asm("NOP"); /* Call nop empty instruction */           __asm("NOP"); /* Call nop empty instruction */            __asm("NOP"); /* Call nop empty instruction */    }}
void LPSPI_Init(void){        GPIO_InitTypeDef  GPIO_InitStruct;    /* Enable SPI1 clock */    SPIx_CLK_ENABLE();    SPIx_SCK_GPIO_CLK_ENABLE();    SPIx_MISO_GPIO_CLK_ENABLE();    SPIx_MOSI_GPIO_CLK_ENABLE();    SPIx_CS_GPIO_CLK_ENABLE();        /* Initialize GPIO configuration*/    /*##-1- Configure peripheral GPIO ##########################################*/    /* SPI SCK GPIO pin configuration  */    GPIO_InitStruct.Pin       = SPIx_SCK_PIN;    GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;    GPIO_InitStruct.Pull      = GPIO_PULLDOWN;    GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_HIGH;    GPIO_InitStruct.Alternate = SPIx_SCK_AF;    HAL_GPIO_Init(SPIx_SCK_GPIO_PORT, &GPIO_InitStruct);
    /* SPI MISO GPIO pin configuration  */    GPIO_InitStruct.Pin = SPIx_MISO_PIN;    GPIO_InitStruct.Alternate = SPIx_MISO_AF;    HAL_GPIO_Init(SPIx_MISO_GPIO_PORT, &GPIO_InitStruct);
    /* SPI MOSI GPIO pin configuration  */    GPIO_InitStruct.Pin = SPIx_MOSI_PIN;    GPIO_InitStruct.Alternate = SPIx_MOSI_AF;    HAL_GPIO_Init(SPIx_MOSI_GPIO_PORT, &GPIO_InitStruct);       /* SPI CS GPIO pin configuration  */    GPIO_InitStruct.Pin = SPIx_CS_PIN;    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;    GPIO_InitStruct.Pull      = GPIO_PULLDOWN;    GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_HIGH;    HAL_GPIO_Init(SPIx_CS_GPIO_PORT, &GPIO_InitStruct);          /* Initialize SPI configuration*/     /*##-2- Configure the SPI peripheral #######################################*/    /* Set the SPI parameters */    SpiHandle.Instance               = SPIx;    SpiHandle.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;    SpiHandle.Init.Direction         = SPI_DIRECTION_2LINES;    SpiHandle.Init.CLKPhase          = SPI_PHASE_1EDGE;    SpiHandle.Init.CLKPolarity       = SPI_POLARITY_HIGH;    SpiHandle.Init.DataSize          = SPI_DATASIZE_8BIT;    SpiHandle.Init.FirstBit          = SPI_FIRSTBIT_MSB;    SpiHandle.Init.TIMode            = SPI_TIMODE_DISABLE;    SpiHandle.Init.CRCCalculation    = SPI_CRCCALCULATION_DISABLE;    SpiHandle.Init.CRCPolynomial     = 7;    SpiHandle.Init.NSS               = SPI_NSS_SOFT;    SpiHandle.Init.Mode              = SPI_MODE_MASTER;    // Initialize SPI    HAL_SPI_Init(&SpiHandle);    // Set CS pin high by default    HAL_GPIO_WritePin(SPIx_CS_GPIO_PORT,SPIx_CS_PIN,GPIO_PIN_SET);
}
void Lpspi_Write(uint8_t datasize,uint8_t *data){    // Write data  HAL_GPIO_WritePin(SPIx_CS_GPIO_PORT,SPIx_CS_PIN,GPIO_PIN_RESET);  HAL_SPI_Transmit(&SpiHandle,data, datasize, 5000);  Spi_delay(30);  HAL_GPIO_WritePin(SPIx_CS_GPIO_PORT,SPIx_CS_PIN,GPIO_PIN_SET);}
void Lpspi_Read(uint8_t datasize,uint8_t *data,uint8_t *Rxdata){//  Read and write data  HAL_GPIO_WritePin(SPIx_CS_GPIO_PORT,SPIx_CS_PIN,GPIO_PIN_RESET);  HAL_SPI_TransmitReceive(&SpiHandle,data,Rxdata, datasize, 5000);  Spi_delay(30);  HAL_GPIO_WritePin(SPIx_CS_GPIO_PORT,SPIx_CS_PIN,GPIO_PIN_SET);}

/*  analogysemi  xutong 2023/10/19*/
#ifndef __BSP_LPSPI_H
#define __BSP_LPSPI_H
#include "stm32h7xx_hal.h"

#define SPIx                             SPI1
#define SPIx_CLK_ENABLE()                __HAL_RCC_SPI1_CLK_ENABLE()
#define SPIx_SCK_GPIO_CLK_ENABLE()       __HAL_RCC_GPIOB_CLK_ENABLE()
#define SPIx_MISO_GPIO_CLK_ENABLE()      __HAL_RCC_GPIOB_CLK_ENABLE()
#define SPIx_MOSI_GPIO_CLK_ENABLE()      __HAL_RCC_GPIOB_CLK_ENABLE()
#define SPIx_CS_GPIO_CLK_ENABLE()      __HAL_RCC_GPIOB_CLK_ENABLE()

/* Definition for SPIx Pins */
#define SPIx_SCK_PIN                     GPIO_PIN_3
#define SPIx_SCK_GPIO_PORT               GPIOB
#define SPIx_SCK_AF                      GPIO_AF5_SPI1
#define SPIx_MISO_PIN                    GPIO_PIN_4
#define SPIx_MISO_GPIO_PORT              GPIOB
#define SPIx_MISO_AF                     GPIO_AF5_SPI1
#define SPIx_MOSI_PIN                    GPIO_PIN_5
#define SPIx_MOSI_GPIO_PORT              GPIOB
#define SPIx_MOSI_AF                     GPIO_AF5_SPI1

#define SPIx_CS_PIN                      GPIO_PIN_6
#define SPIx_CS_GPIO_PORT                GPIOB


void LPSPI_Init(void);
void Lpspi_Write(uint8_t datasize,uint8_t *data);
void Lpspi_Read(uint8_t datasize,uint8_t *data,uint8_t *Rxdata);
#endif /* __BSP_LPSPI_H */