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260 lines
7.4 KiB
260 lines
7.4 KiB
#include "bsp_spi_soft.h"
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#include "elog.h"
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// #include "delay.h"
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#define DELAY_TIME 1 // 10微秒
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void SPI_Init(const SPI_SOFT_TypeDef *pSoftSPI)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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__HAL_RCC_GPIOF_CLK_ENABLE(); // 使能GPIO F 时钟
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// //CS引脚初始化
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GPIO_InitStructure.Pin = pSoftSPI->cs_pin;
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GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; // 推挽输出
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init(pSoftSPI->cs_port, &GPIO_InitStructure);
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// SCK和MOSI引脚初始化
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GPIO_InitStructure.Pin = pSoftSPI->sclk_pin;
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GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; // 推挽输出
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(pSoftSPI->sclk_port, &GPIO_InitStructure);
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// MISO引脚初始化
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GPIO_InitStructure.Pin = pSoftSPI->miso_pin;
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// GPIO_InitStructure.Mode = GPIO_Mode_IPU ; //浮空输入
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GPIO_InitStructure.Mode = GPIO_MODE_INPUT; // 浮空输入
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GPIO_InitStructure.Pull = GPIO_PULLUP;
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HAL_GPIO_Init(pSoftSPI->miso_pin, &GPIO_InitStructure);
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// MOSI引脚初始化
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GPIO_InitStructure.Pin = pSoftSPI->mosi_pin;
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GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; // 推挽输出
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(pSoftSPI->mosi_port, &GPIO_InitStructure);
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// 初始化 0 0
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HAL_GPIO_WritePin(pSoftSPI->sclk_port, pSoftSPI->sclk_pin, GPIO_PIN_SET); // 极性0 初始化需要拉高
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HAL_GPIO_WritePin(pSoftSPI->cs_port, pSoftSPI->cs_pin, GPIO_PIN_SET);
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// HAL_GPIO_WritePin(pSoftSPI->mosi_port, pSoftSPI->mosi_pin, GPIO_PIN_SET);
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}
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/**
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* @brief Set SDIO as the input mode
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*/
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void SDO_IN(const SPI_SOFT_TypeDef *pSoftSPI)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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GPIO_InitStruct.Pin = pSoftSPI->miso_pin;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(pSoftSPI->miso_pin, &GPIO_InitStruct);
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}
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/**
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* @brief Set SDIO as the output mode
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*/
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void SDO_OUT(const SPI_SOFT_TypeDef *pSoftSPI)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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GPIO_InitStruct.Pin = pSoftSPI->miso_pin;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(pSoftSPI->miso_pin, &GPIO_InitStruct);
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}
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/**
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* @brief Send one byte by SPI bus
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* @def 先拉低，然后发送，在拉高有个跳变沿（从机检测到跳变），然后可以进入接收
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* @param u8_writedata
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*/
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void SPI_Write_OneByte(const SPI_SOFT_TypeDef *pSoftSPI, uint8_t u8_writedata)
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{
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uint8_t i;
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for (i = 0; i < 8; i++)
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{
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HAL_GPIO_WritePin(pSoftSPI->sclk_port, pSoftSPI->sclk_pin, GPIO_PIN_RESET); // SCK Low
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__NOP();
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if (u8_writedata & 0x80)
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// SDI_H;
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HAL_GPIO_WritePin(pSoftSPI->mosi_port, pSoftSPI->mosi_pin, GPIO_PIN_SET);
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else
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// SDI_L;
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HAL_GPIO_WritePin(pSoftSPI->mosi_port, pSoftSPI->mosi_pin, GPIO_PIN_RESET);
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// SCLK_H;
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HAL_GPIO_WritePin(pSoftSPI->sclk_port, pSoftSPI->sclk_pin, GPIO_PIN_SET);
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__NOP();
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u8_writedata <<= 1;
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// SCLK_L;
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// HAL_GPIO_WritePin(pSoftSPI->sclk_port, pSoftSPI->sclk_pin, GPIO_PIN_RESET);
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}
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}
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/**
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* @brief Read one byte by SPI bus
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*
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* @return temp
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*/
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uint8_t SPI_Read_OneByte(const SPI_SOFT_TypeDef *pSoftSPI)
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{
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uint8_t i;
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uint8_t temp = 0;
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for (i = 0; i < 8; i++)
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{
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temp <<= 1;
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// SCLK_H;
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HAL_GPIO_WritePin(pSoftSPI->sclk_port, pSoftSPI->sclk_pin, GPIO_PIN_SET); // SCK High
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__NOP();
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// if (SDO_R)
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if (HAL_GPIO_ReadPin(pSoftSPI->miso_port, pSoftSPI->miso_pin) == GPIO_PIN_SET) // miso read
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temp |= 0x01;
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// SCLK_L;
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__NOP();
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HAL_GPIO_WritePin(pSoftSPI->sclk_port, pSoftSPI->sclk_pin, GPIO_PIN_RESET);
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HAL_GPIO_WritePin(pSoftSPI->sclk_port, pSoftSPI->sclk_pin, GPIO_PIN_SET); // SCK High
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}
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return temp;
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}
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// 同步传输数据，比如在时钟的上升沿是写数据，那么在时钟的下降沿就是读数据
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uint8_t SPI_ReadWriteByte(const SPI_SOFT_TypeDef *pSoftSPI, uint8_t TxData)
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{
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int i = 0;
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uint8_t RxData = 0;
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HAL_GPIO_WritePin(pSoftSPI->sclk_port, pSoftSPI->sclk_pin, GPIO_PIN_RESET); // sclk low
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for (i = 7; i >= 0; i--)
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{
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// W25QXX_SCK_L(); // 时钟拉低 ，发送1bit
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HAL_GPIO_WritePin(pSoftSPI->sclk_port, pSoftSPI->sclk_pin, GPIO_PIN_RESET); // SCK Low
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__NOP();
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// 数据发送
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if (TxData & (1 << i))
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{
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HAL_GPIO_WritePin(pSoftSPI->mosi_port, pSoftSPI->mosi_pin, GPIO_PIN_SET); // MOSI H
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}
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else
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{
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HAL_GPIO_WritePin(pSoftSPI->mosi_port, pSoftSPI->mosi_pin, GPIO_PIN_RESET); // MOSI L
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}
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__NOP();
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// W25QXX_SCK_H(); // 拉高时钟读 1bit
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HAL_GPIO_WritePin(pSoftSPI->sclk_port, pSoftSPI->sclk_pin, GPIO_PIN_SET);
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__NOP();
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// 数据接收
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RxData <<= 1;
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if (HAL_GPIO_ReadPin(pSoftSPI->miso_port, pSoftSPI->miso_pin) == GPIO_PIN_SET)
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RxData |= 0x01;
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__NOP();
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}
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HAL_GPIO_WritePin(pSoftSPI->sclk_port, pSoftSPI->sclk_pin, GPIO_PIN_RESET); // SCK LOw
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return RxData;
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}
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void SPI_Read_Write_buf(const SPI_SOFT_TypeDef *pSoftSPI, uint8_t* txBuf,uint8_t* rxBuf,uint16_t len)
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{
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int i = 0;
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uint8_t RxData = 0;
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for ( size_t i = 0; i < len; i++ )
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{
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if (i==0) {
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SPI_Write_OneByte(pSoftSPI, *txBuf);
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txBuf++;
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}
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else{
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*rxBuf = SPI_ReadWriteByte(pSoftSPI, *txBuf);
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txBuf++;
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rxBuf++;
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}
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}
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// TODO TimeOut
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return ;
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}
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/**
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* @brief Write a register
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*
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* @param d: {D2, D1, D0} addr uint32_T
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* @return SUCCESS
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*/
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uint8_t WriteReg(const SPI_SOFT_TypeDef *pSoftSPI, uint32_t d)
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{
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uint8_t tx[3] = {(d >> 16) & 0xff, (d >> 8) & 0xff, d & 0xff};
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SDO_OUT(pSoftSPI);
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// CS_L;
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HAL_GPIO_WritePin(pSoftSPI->cs_port, pSoftSPI->cs_pin, GPIO_PIN_RESET);
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SPI_Write_OneByte(pSoftSPI, tx[0]);
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SPI_Write_OneByte(pSoftSPI, tx[1]);
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SPI_Write_OneByte(pSoftSPI, tx[2]);
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// CS_H;
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HAL_GPIO_WritePin(pSoftSPI->cs_port, pSoftSPI->cs_pin, GPIO_PIN_SET);
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// SDI_L;
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HAL_GPIO_WritePin(pSoftSPI->mosi_port, pSoftSPI->mosi_pin, GPIO_PIN_RESET);
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return SUCCESS;
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}
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/**
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* @brief Read a register
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* @param d: {D2, D1, D0} addr uint32_t
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* @return data: The data be read in a register
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*/
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uint8_t ReadReg(const SPI_SOFT_TypeDef *pSoftSPI, uint32_t d)
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{
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uint8_t tx[3] = {(d >> 16) & 0xff, (d >> 8) & 0xff, d & 0xff};
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uint8_t data;
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// tx[0] = tx[0] | RF_DATA_READ_BIT;
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SDO_OUT(pSoftSPI);
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// CS_L;
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HAL_GPIO_WritePin(pSoftSPI->cs_port, pSoftSPI->cs_pin, GPIO_PIN_RESET);
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SPI_Write_OneByte(pSoftSPI, tx[0]);
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SPI_Write_OneByte(pSoftSPI, tx[1]);
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data = SPI_Read_OneByte(pSoftSPI);
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// CS_H;
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HAL_GPIO_WritePin(pSoftSPI->cs_port, pSoftSPI->cs_pin, GPIO_PIN_SET);
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SDO_OUT(pSoftSPI);
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// SDI_L;
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HAL_GPIO_WritePin(pSoftSPI->mosi_port, pSoftSPI->mosi_pin, GPIO_PIN_RESET);
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log_i(" ReadReg ... %02X ", data);
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return data;
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}
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// test ok
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uint32_t SPI_FLASH_ReadDeviceID(const SPI_SOFT_TypeDef *pSoftSPI)
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{
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uint32_t Temp = 0;
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uint8_t readout = 0;
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// CS_L;
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HAL_GPIO_WritePin(pSoftSPI->cs_port, pSoftSPI->cs_pin, GPIO_PIN_RESET);
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log_i(" SPI_FLASH_ReadDeviceID ... ");
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// 发送4字节指令
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// readout = SPI_ReadWriteByte(pSoftSPI,0x9F);
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SPI_Write_OneByte(pSoftSPI, 0x9F);
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Temp |= (readout << 24);
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readout = SPI_ReadWriteByte(pSoftSPI, 0xFF);
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// readout = SPI_ReadWriteByte(pSoftSPI,0xFF);
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Temp |= (readout << 16);
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readout = SPI_ReadWriteByte(pSoftSPI, 0xFF);
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// readout = SPI_ReadWriteByte(pSoftSPI,0xFF);
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Temp |= (readout << 8);
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readout = SPI_ReadWriteByte(pSoftSPI, 0xFF);
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// readout = SPI_ReadWriteByte(pSoftSPI,0xFF);
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Temp |= (readout);
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log_i("rrrr: 0x%08X\n", Temp); // 0X00EF4019
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// CS_H;
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HAL_GPIO_WritePin(pSoftSPI->cs_port, pSoftSPI->cs_pin, GPIO_PIN_SET);
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return Temp;
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}
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