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Stm32Project/Src/spi3.c

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2024-11-06 22:26:06 +08:00
#include "spi3.h"
/*********************************************************************************
___ _ _____ _____ _ _ _____ _____ _ __
/ _ \ | | |_ _|| ___|| \ | ||_ _|| ___|| | / /
/ /_\ \| | | | | |__ | \| | | | | |__ | |/ /
| _ || | | | | __| | . ` | | | | __| | \
| | | || |_____| |_ | |___ | |\ | | | | |___ | |\ \
\_| |_/\_____/\___/ \____/ \_| \_/ \_/ \____/ \_| \_/
* ******************************************************************************
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>ѧϰʹ<EFBFBD>ã<EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><EFBFBD><EFBFBD>;
* ALIENTEK Pandora STM32L475 IOT<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* SPI3<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD>@ALIENTEK
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳:www.openedv.com
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:2018/10/27
* <EFBFBD>汾<EFBFBD><EFBFBD>V1.0
* <EFBFBD><EFBFBD>Ȩ<EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؾ<EFBFBD><EFBFBD><EFBFBD>
* Copyright(C) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿƼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>޹<EFBFBD>˾ 2014-2024
* All rights reserved
* ******************************************************************************
* <EFBFBD><EFBFBD>ʼ<EFBFBD>汾
* ******************************************************************************/
SPI_HandleTypeDef SPI3_Handler; //SPI3<49><33><EFBFBD>
/**
* @brief SPI3<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ
*
* @param void
*
* @return void
*/
void SPI3_Init(void)
{
SPI3_Handler.Instance=SPI3; //SPI3
SPI3_Handler.Init.Mode=SPI_MODE_MASTER; //<2F><><EFBFBD><EFBFBD>SPI<50><49><EFBFBD><EFBFBD>ģʽ<C4A3><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ģʽ
SPI3_Handler.Init.Direction=SPI_DIRECTION_2LINES; //<2F><><EFBFBD><EFBFBD>SPI<50><49><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˫<EFBFBD><CBAB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ:SPI<50><49><EFBFBD><EFBFBD>Ϊ˫<CEAA><CBAB>ģʽ
SPI3_Handler.Init.DataSize=SPI_DATASIZE_8BIT; //<2F><><EFBFBD><EFBFBD>SPI<50><49><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD>С:SPI<50><49><EFBFBD>ͽ<EFBFBD><CDBD><EFBFBD>8λ֡<CEBB>ṹ
SPI3_Handler.Init.CLKPolarity=SPI_POLARITY_HIGH; //<2F><><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC>ʱ<EFBFBD>ӵĿ<D3B5><C4BF><EFBFBD>״̬Ϊ<CCAC>ߵ<EFBFBD>ƽ
SPI3_Handler.Init.CLKPhase=SPI_PHASE_2EDGE; //<2F><><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC>ʱ<EFBFBD>ӵĵڶ<C4B5><DAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>أ<EFBFBD><D8A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>½<EFBFBD><C2BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD>
SPI3_Handler.Init.NSS=SPI_NSS_SOFT; //NSS<53>ź<EFBFBD><C5BA><EFBFBD>Ӳ<EFBFBD><D3B2><EFBFBD><EFBFBD>NSS<53>ܽţ<DCBD><C5A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>SSIλ<49><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:<3A>ڲ<EFBFBD>NSS<53>ź<EFBFBD><C5BA><EFBFBD>SSIλ<49><CEBB><EFBFBD><EFBFBD>
SPI3_Handler.Init.BaudRatePrescaler=SPI_BAUDRATEPRESCALER_2;//<2F><><EFBFBD>岨<EFBFBD><E5B2A8><EFBFBD><EFBFBD>Ԥ<EFBFBD><D4A4>Ƶ<EFBFBD><C6B5>ֵ:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԥ<EFBFBD><D4A4>ƵֵΪ256
SPI3_Handler.Init.FirstBit=SPI_FIRSTBIT_MSB; //ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD><EFBFBD>MSBλ<42><CEBB><EFBFBD><EFBFBD>LSBλ<42><CEBB>ʼ:<3A><><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD><EFBFBD>MSBλ<42><CEBB>ʼ
SPI3_Handler.Init.TIMode=SPI_TIMODE_DISABLE; //<2F>ر<EFBFBD>TIģʽ
SPI3_Handler.Init.CRCCalculation=SPI_CRCCALCULATION_DISABLE;//<2F>ر<EFBFBD>Ӳ<EFBFBD><D3B2>CRCУ<43><D0A3>
SPI3_Handler.Init.CRCPolynomial=7; //CRCֵ<43><D6B5><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>ʽ
HAL_SPI_Init(&SPI3_Handler);//<2F><>ʼ<EFBFBD><CABC>SPI3
__HAL_SPI_ENABLE(&SPI3_Handler); //ʹ<><CAB9>SPI3
}
/**
* @brief SPI3<EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ʹ<EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
* @param hspi SPI<EFBFBD><EFBFBD><EFBFBD>
*
* @return void
*/
// void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi)
// {
// GPIO_InitTypeDef GPIO_Initure;
// __HAL_RCC_GPIOB_CLK_ENABLE(); //ʹ<><CAB9>GPIOBʱ<42><CAB1>
// __HAL_RCC_SPI3_CLK_ENABLE(); //ʹ<><CAB9>SPI3ʱ<33><CAB1>
// //PB3.5
// GPIO_Initure.Pin=GPIO_PIN_3|GPIO_PIN_5;
// GPIO_Initure.Mode=GPIO_MODE_AF_PP; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// GPIO_Initure.Pull=GPIO_PULLUP; //<2F><><EFBFBD><EFBFBD>
// GPIO_Initure.Speed=GPIO_SPEED_FREQ_VERY_HIGH; //80Mhz
// GPIO_Initure.Alternate=GPIO_AF6_SPI3; //PB3.5<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΪSPI3
// HAL_GPIO_Init(GPIOB,&GPIO_Initure);
// }
/**
* @brief SPI3 <EFBFBD><EFBFBD>дһ<EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>
*
* @param TxData Ҫд<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>
*
* @return u8 <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>
*/
u8 SPI3_ReadWriteByte(u8 TxData)
{
u8 Rxdata;
HAL_SPI_TransmitReceive(&SPI3_Handler,&TxData,&Rxdata,1, 1000);
return Rxdata; //<2F><><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
}
/**
* @brief SPI3 д<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>
*
* @param TxData Ҫд<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>
* @param size д<EFBFBD><EFBFBD><EFBFBD>ֽڴ<EFBFBD>С
*
* @return u8 0:д<EFBFBD><EFBFBD>ɹ<EFBFBD>,<EFBFBD><EFBFBD><EFBFBD><EFBFBD>:д<EFBFBD><EFBFBD>ʧ<EFBFBD><EFBFBD>
*/
u8 SPI3_WriteByte(u8 *TxData,u16 size)
{
return HAL_SPI_Transmit(&SPI3_Handler,TxData,size,1000);
}
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