462 lines
15 KiB
C
462 lines
15 KiB
C
/********************************** (C) COPYRIGHT *******************************
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* File Name : SPI_FLAH.c
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* Author : WCH
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* Version : V1.0.1
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* Date : 2022/11/24
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* Description : SPI FLASHChip operation file
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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/******************************************************************************/
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/* Header Files */
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#include <SPI_FLASH.h>
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#include <SW_CDROM.h>
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#include "ch32v20x_spi.h"
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/******************************************************************************/
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volatile uint8_t Flash_Type = 0x00; /* FLASH chip: 0: W25XXXseries */
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volatile uint32_t Flash_ID = 0x00; /* FLASH ID */
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volatile uint32_t Flash_Sector_Count = 0x00; /* FLASH sector number */
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volatile uint16_t Flash_Sector_Size = 0x00; /* FLASH sector size */
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/*******************************************************************************
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* Function Name : FLASH_Port_Init
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* Description : FLASH chip operation related pins and hardware initialization
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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void FLASH_Port_Init( void )
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{
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GPIO_InitTypeDef GPIO_InitStructure = {0};
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SPI_InitTypeDef SPI_InitStructure = {0};
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_SPI1 , ENABLE);
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/* CS# */
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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GPIO_SetBits(GPIOA, GPIO_Pin_2);
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/* SCK */
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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/* MISO */
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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/* MOSI */
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
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SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
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SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
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SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
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SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
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SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
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SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;
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SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
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SPI_InitStructure.SPI_CRCPolynomial = 7;
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SPI_Init(SPI1, &SPI_InitStructure);
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// SPI1->HSCR |= 0x01; // Enable High Speed Read
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SPI_Cmd(SPI1, ENABLE);
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}
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/*********************************************************************
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* @fn SPI1_ReadWriteByte
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*
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* @brief SPI1 read or write one byte.
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*
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* @param TxData - write one byte data.
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*
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* @return Read one byte data.
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*/
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uint8_t SPI1_ReadWriteByte(uint8_t TxData)
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{
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uint8_t i = 0;
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while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET)
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{
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i++;
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if(i > 200)
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return 0;
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}
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SPI_I2S_SendData(SPI1, TxData);
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i = 0;
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while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET)
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{
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i++;
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if(i > 200)
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return 0;
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}
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return SPI_I2S_ReceiveData(SPI1);
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}
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/*******************************************************************************
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* Function Name : SPI_FLASH_SendByte
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* Description : SPI send a byte
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* Input : byte: byte to send
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* Output : None
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* Return : None
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*******************************************************************************/
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uint8_t SPI_FLASH_SendByte( uint8_t byte )
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{
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return SPI1_ReadWriteByte( byte );
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}
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/*******************************************************************************
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* Function Name : SPI_FLASH_ReadByte
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* Description : SPI receive a byte
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* Input : None
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* Output : None
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* Return : byte received
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*******************************************************************************/
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uint8_t SPI_FLASH_ReadByte( void )
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{
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return SPI1_ReadWriteByte( 0xFF );
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}
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/*******************************************************************************
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* Function Name : FLASH_ReadID
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* Description : Read FLASH ID
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* Input : None
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* Output : None
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* Return : chip id
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*******************************************************************************/
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uint32_t FLASH_ReadID( void )
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{
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uint32_t dat;
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PIN_FLASH_CS_LOW( );
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SPI_FLASH_SendByte( CMD_FLASH_JEDEC_ID );
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dat = ( uint32_t )SPI_FLASH_SendByte( DEF_DUMMY_BYTE ) << 16;
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dat |= ( uint32_t )SPI_FLASH_SendByte( DEF_DUMMY_BYTE ) << 8;
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dat |= SPI_FLASH_SendByte( DEF_DUMMY_BYTE );
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PIN_FLASH_CS_HIGH( );
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return( dat );
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}
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/*******************************************************************************
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* Function Name : FLASH_WriteEnable
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* Description : FLASH Write Enable
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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void FLASH_WriteEnable( void )
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{
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PIN_FLASH_CS_LOW( );
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SPI_FLASH_SendByte( CMD_FLASH_WREN );
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PIN_FLASH_CS_HIGH( );
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}
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/*******************************************************************************
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* Function Name : FLASH_WriteDisable
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* Description : FLASH Write Disable
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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void FLASH_WriteDisable( void )
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{
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PIN_FLASH_CS_LOW( );
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SPI_FLASH_SendByte( CMD_FLASH_WRDI );
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PIN_FLASH_CS_HIGH( );
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}
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/*******************************************************************************
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* Function Name : FLASH_ReadStatusReg
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* Description : FLASH Read Status
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* Input : None
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* Output : None
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* Return : status
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*******************************************************************************/
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uint8_t FLASH_ReadStatusReg( void )
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{
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uint8_t status;
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PIN_FLASH_CS_LOW( );
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SPI_FLASH_SendByte( CMD_FLASH_RDSR );
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status = SPI_FLASH_ReadByte( );
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PIN_FLASH_CS_HIGH( );
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return( status );
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}
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/*******************************************************************************
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* Function Name : FLASH_Erase_Sector
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* Description : FLASH Erase Sector
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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void FLASH_Erase_Sector( uint32_t address )
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{
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uint8_t temp;
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FLASH_WriteEnable( );
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PIN_FLASH_CS_LOW( );
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SPI_FLASH_SendByte( CMD_FLASH_SECTOR_ERASE );
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SPI_FLASH_SendByte( (uint8_t)( address >> 16 ) );
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SPI_FLASH_SendByte( (uint8_t)( address >> 8 ) );
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SPI_FLASH_SendByte( (uint8_t)address );
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PIN_FLASH_CS_HIGH( );
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do
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{
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temp = FLASH_ReadStatusReg( );
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}while( temp & 0x01 );
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}
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/*******************************************************************************
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* Function Name : FLASH_RD_Block_Start
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* Description : FLASH start block read
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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void FLASH_RD_Block_Start( uint32_t address )
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{
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PIN_FLASH_CS_LOW( );
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SPI_FLASH_SendByte( CMD_FLASH_READ );
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SPI_FLASH_SendByte( (uint8_t)( address >> 16 ) );
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SPI_FLASH_SendByte( (uint8_t)( address >> 8 ) );
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SPI_FLASH_SendByte( (uint8_t)address );
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}
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/*******************************************************************************
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* Function Name : FLASH_RD_Block
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* Description : FLASH read block
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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void FLASH_RD_Block( uint8_t *pbuf, uint32_t len )
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{
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while( len-- )
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{
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*pbuf++ = SPI_FLASH_ReadByte( );
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}
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}
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/*******************************************************************************
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* Function Name : FLASH_RD_Block_End
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* Description : FLASH end block read
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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void FLASH_RD_Block_End( void )
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{
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PIN_FLASH_CS_HIGH( );
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}
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/*******************************************************************************
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* Function Name : W25XXX_WR_Page
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* Description : Flash page program
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* Input : address
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* len
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* *pbuf
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* Output : None
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* Return : None
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*******************************************************************************/
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void W25XXX_WR_Page( uint8_t *pbuf, uint32_t address, uint32_t len )
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{
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uint8_t temp;
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FLASH_WriteEnable( );
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PIN_FLASH_CS_LOW( );
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SPI_FLASH_SendByte( CMD_FLASH_BYTE_PROG );
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SPI_FLASH_SendByte( (uint8_t)( address >> 16 ) );
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SPI_FLASH_SendByte( (uint8_t)( address >> 8 ) );
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SPI_FLASH_SendByte( (uint8_t)address );
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if( len > SPI_FLASH_PerWritePageSize )
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{
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len = SPI_FLASH_PerWritePageSize;
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}
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while( len-- )
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{
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SPI_FLASH_SendByte( *pbuf++ );
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}
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PIN_FLASH_CS_HIGH( );
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do
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{
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temp = FLASH_ReadStatusReg( );
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}while( temp & 0x01 );
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}
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/*******************************************************************************
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* Function Name : W25XXX_WR_Block
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* Description : W25XXX block write
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* Input : address
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* len
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* *pbuf
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* Output : None
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* Return : None
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*******************************************************************************/
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void W25XXX_WR_Block( uint8_t *pbuf, uint32_t address, uint32_t len )
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{
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uint8_t NumOfPage = 0, NumOfSingle = 0, Addr = 0, count = 0, temp = 0;
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Addr = address % SPI_FLASH_PageSize;
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count = SPI_FLASH_PageSize - Addr;
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NumOfPage = len / SPI_FLASH_PageSize;
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NumOfSingle = len % SPI_FLASH_PageSize;
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if( Addr == 0 )
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{
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if( NumOfPage == 0 )
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{
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W25XXX_WR_Page( pbuf, address, len );
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}
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else
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{
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while( NumOfPage-- )
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{
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W25XXX_WR_Page( pbuf, address, SPI_FLASH_PageSize );
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address += SPI_FLASH_PageSize;
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pbuf += SPI_FLASH_PageSize;
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}
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W25XXX_WR_Page( pbuf, address, NumOfSingle );
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}
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}
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else
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{
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if( NumOfPage == 0 )
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{
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if( NumOfSingle > count )
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{
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temp = NumOfSingle - count;
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W25XXX_WR_Page( pbuf, address, count );
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address += count;
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pbuf += count;
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W25XXX_WR_Page( pbuf, address, temp );
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}
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else
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{
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W25XXX_WR_Page( pbuf, address, len );
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}
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}
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else
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{
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len -= count;
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NumOfPage = len / SPI_FLASH_PageSize;
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NumOfSingle = len % SPI_FLASH_PageSize;
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W25XXX_WR_Page( pbuf, address, count );
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address += count;
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pbuf += count;
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while( NumOfPage-- )
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{
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W25XXX_WR_Page( pbuf, address, SPI_FLASH_PageSize );
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address += SPI_FLASH_PageSize;
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pbuf += SPI_FLASH_PageSize;
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}
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if( NumOfSingle != 0 )
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{
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W25XXX_WR_Page( pbuf, address, NumOfSingle );
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}
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}
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}
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}
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/*******************************************************************************
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* Function Name : FLASH_IC_Check
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* Description : check flash type
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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void FLASH_IC_Check( void )
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{
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uint32_t count;
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/* Read FLASH ID */
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Flash_ID = FLASH_ReadID( );
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printf("Flash_ID: %08x\n",(uint32_t)Flash_ID);
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Flash_Type = 0x00;
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Flash_Sector_Count = 0x00;
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Flash_Sector_Size = 0x00;
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switch( Flash_ID )
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{
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/* W25XXX */
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case W25X10_FLASH_ID: /* 0xEF3011-----1M bit */
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count = 1;
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break;
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case W25X20_FLASH_ID: /* 0xEF3012-----2M bit */
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count = 2;
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break;
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case W25X40_FLASH_ID: /* 0xEF3013-----4M bit */
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count = 4;
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break;
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case W25X80_FLASH_ID: /* 0xEF4014-----8M bit */
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count = 8;
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break;
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case W25Q16_FLASH_ID1: /* 0xEF3015-----16M bit */
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case W25Q16_FLASH_ID2: /* 0xEF4015-----16M bit */
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count = 16;
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break;
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case W25Q32_FLASH_ID1: /* 0xEF4016-----32M bit */
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case W25Q32_FLASH_ID2: /* 0xEF6016-----32M bit */
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count = 32;
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break;
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case W25Q64_FLASH_ID1: /* 0xEF4017-----64M bit */
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case W25Q64_FLASH_ID2: /* 0xEF6017-----64M bit */
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count = 64;
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break;
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case W25Q128_FLASH_ID1: /* 0xEF4018-----128M bit */
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case W25Q128_FLASH_ID2: /* 0xEF6018-----128M bit */
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count = 128;
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break;
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case W25Q256_FLASH_ID1: /* 0xEF4019-----256M bit */
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case W25Q256_FLASH_ID2: /* 0xEF6019-----256M bit */
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count = 256;
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break;
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default:
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if( ( Flash_ID != 0xFFFFFFFF ) && ( Flash_ID != 0x00000000 ) )
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{
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count = 16;
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}
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else
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{
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count = 0x00;
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}
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break;
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}
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count = ( (uint32_t)count * 1024 ) * ( (uint32_t)1024 / 8 );
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if( count )
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{
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Flash_Sector_Count = count / DEF_CDROM_SECTOR_SIZE;
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Flash_Sector_Size = DEF_CDROM_SECTOR_SIZE;
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}
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else
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{
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printf("External Flash not connected\r\n");
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while(1);
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}
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}
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