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#include "QSPIFlash.h"
#include "CH340N.h"
u8 W25Qxx_QSPI_readSR(u8 cmd);
void W25Qxx_QSPI_SendCMD(u8 cmd);
void W25Qxx_QSPI_writeSR(u8 cmd,u8 data);
//初始化
void W25Qxx_QSPI_Init(void)
{
gpio_init_type gpio_init_struct;
crm_periph_clock_enable(CRM_QSPI1_PERIPH_CLOCK, TRUE);
crm_periph_clock_enable(CRM_GPIOA_PERIPH_CLOCK, TRUE);
crm_periph_clock_enable(CRM_GPIOB_PERIPH_CLOCK, TRUE);
crm_periph_clock_enable(CRM_GPIOC_PERIPH_CLOCK, TRUE);
gpio_default_para_init(&gpio_init_struct);
//io0
gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
gpio_init_struct.gpio_mode = GPIO_MODE_MUX;
gpio_init_struct.gpio_pins = GPIO_PINS_0;
gpio_init_struct.gpio_pull = GPIO_PULL_NONE;
gpio_init(GPIOB, &gpio_init_struct);
gpio_pin_mux_config(GPIOB, GPIO_PINS_SOURCE0, GPIO_MUX_10);
//io1
gpio_init_struct.gpio_pins = GPIO_PINS_7;
gpio_init(GPIOA, &gpio_init_struct);
gpio_pin_mux_config(GPIOA, GPIO_PINS_SOURCE7, GPIO_MUX_10);
//io2
gpio_init_struct.gpio_pins = GPIO_PINS_4;
gpio_init(GPIOC, &gpio_init_struct);
gpio_pin_mux_config(GPIOC, GPIO_PINS_SOURCE4, GPIO_MUX_10);
//io3
gpio_init_struct.gpio_pins = GPIO_PINS_5;
gpio_init(GPIOC, &gpio_init_struct);
gpio_pin_mux_config(GPIOC, GPIO_PINS_SOURCE5, GPIO_MUX_10);
//sck
gpio_init_struct.gpio_pins = GPIO_PINS_1;
gpio_init(GPIOB, &gpio_init_struct);
gpio_pin_mux_config(GPIOB, GPIO_PINS_SOURCE1, GPIO_MUX_9);
//cs
gpio_init_struct.gpio_pins = GPIO_PINS_10;
gpio_init(GPIOB, &gpio_init_struct);
gpio_pin_mux_config(GPIOB, GPIO_PINS_SOURCE10, GPIO_MUX_9);
qspi_xip_enable(QSPI1, FALSE);
qspi_clk_division_set(QSPI1, QSPI_CLK_DIV_4);
qspi_sck_mode_set(QSPI1, QSPI_SCK_MODE_0);
qspi_busy_config(QSPI1, QSPI_BUSY_OFFSET_0);
W25Qxx_QSPI_Enable();
W25Qxx_QSPI_4ByteAdd();
W25Qxx_QSPI_MaxSCK();
}
//使能QSPI 4线模式
void W25Qxx_QSPI_Enable(void)
{
u8 state=0;
qspi_cmd_type qspi_cmd_struct;
//读状态寄存器2
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_ReadStatusReg2;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = 0;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_0_BYTE;
qspi_cmd_struct.data_counter = 1;
qspi_cmd_struct.second_dummy_cycle_num = 0;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_111;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = FALSE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
while(qspi_flag_get(QSPI1, QSPI_RXFIFORDY_FLAG) == RESET);
state=qspi_byte_read(QSPI1);
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
if((state&0x02)==0)
{
//发送写使能
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_WriteEnable;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = 0;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_0_BYTE;
qspi_cmd_struct.data_counter = 0;
qspi_cmd_struct.second_dummy_cycle_num = 0;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_111;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = TRUE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
//写状态寄存器
state|=1<<1;
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_WriteStatusReg2;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = 0;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_0_BYTE;
qspi_cmd_struct.data_counter = 1;
qspi_cmd_struct.second_dummy_cycle_num = 0;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_111;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = TRUE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
while(qspi_flag_get(QSPI1, QSPI_TXFIFORDY_FLAG) == RESET);
qspi_byte_write(QSPI1, state);
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
}
//发送4线命令
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_EnterQPIMode;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = 0;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_0_BYTE;
qspi_cmd_struct.data_counter = 0;
qspi_cmd_struct.second_dummy_cycle_num = 0;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_111;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = TRUE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
}
//读W25Q256FVEG ID
u16 W25Qxx_QSPI_readID(void)
{
u16 temp=0,ID=0;
qspi_cmd_type qspi_cmd_struct;
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_ManufactDeviceID;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = 0;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_3_BYTE;
qspi_cmd_struct.data_counter = 2;
qspi_cmd_struct.second_dummy_cycle_num = 0;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_444;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = FALSE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
while(qspi_flag_get(QSPI1, QSPI_RXFIFORDY_FLAG) == RESET);
temp=qspi_half_word_read(QSPI1);
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
ID=(temp<<8)|(temp>>8);
return ID;
}
//写使能
void W25Qxx_QSPI_writeEN(void)
{
qspi_cmd_type qspi_cmd_struct;
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_WriteEnable;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = 0;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_0_BYTE;
qspi_cmd_struct.data_counter = 0;
qspi_cmd_struct.second_dummy_cycle_num = 0;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_444;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = TRUE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
}
//设置4字节地址模式
void W25Qxx_QSPI_4ByteAdd(void)
{
qspi_cmd_type qspi_cmd_struct;
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_Enable4ByteAddr;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = 0;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_0_BYTE;
qspi_cmd_struct.data_counter = 0;
qspi_cmd_struct.second_dummy_cycle_num = 0;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_444;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = TRUE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
}
//忙检查
void W25Qxx_QSPI_Busy(void)
{
u8 state=0;
qspi_cmd_type qspi_cmd_struct;
do
{
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_ReadStatusReg1;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = 0;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_0_BYTE;
qspi_cmd_struct.data_counter = 1;
qspi_cmd_struct.second_dummy_cycle_num = 0;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_444;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = FALSE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
while(qspi_flag_get(QSPI1, QSPI_RXFIFORDY_FLAG) == RESET);
state=qspi_byte_read(QSPI1);
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
}while(state&0x01);
}
//设置读最大时钟104MHz
void W25Qxx_QSPI_MaxSCK(void)
{
u8 data=0;
qspi_cmd_type qspi_cmd_struct;
W25Qxx_QSPI_writeEN();
W25Qxx_QSPI_Busy();
data=3<<4;
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_SetReadParam;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = 0;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_0_BYTE;
qspi_cmd_struct.data_counter = 1;
qspi_cmd_struct.second_dummy_cycle_num = 0;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_444;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = TRUE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
while(qspi_flag_get(QSPI1, QSPI_TXFIFORDY_FLAG) == RESET);
qspi_byte_write(QSPI1, data);
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
}
//整片擦除
void W25Qxx_QSPI_EraseChip(void)
{
qspi_cmd_type qspi_cmd_struct;
W25Qxx_QSPI_writeEN();
W25Qxx_QSPI_Busy();
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_ChipErase;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = 0;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_0_BYTE;
qspi_cmd_struct.data_counter = 0;
qspi_cmd_struct.second_dummy_cycle_num = 0;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_444;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = TRUE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
W25Qxx_QSPI_Busy();
}
//扇区擦除
void W25Qxx_QSPI_EraseSector(u32 Addr)
{
qspi_cmd_type qspi_cmd_struct;
W25Qxx_QSPI_writeEN();
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_SectorErase;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = Addr;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_4_BYTE;
qspi_cmd_struct.data_counter = 0;
qspi_cmd_struct.second_dummy_cycle_num = 0;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_444;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = TRUE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
W25Qxx_QSPI_Busy();
}
//读取数据
void W25Qxx_QSPI_Read(u8* pbuff,u32 Addr,u16 rlen)
{
u16 len=0,i=0;
qspi_cmd_type qspi_cmd_struct;
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_FastReadData;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = Addr;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_4_BYTE;
qspi_cmd_struct.data_counter = rlen;
qspi_cmd_struct.second_dummy_cycle_num = 8;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_444;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = FALSE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
do
{
if(rlen>=128) //FIFO最大128字节
len=128;
else
len=rlen;
while(qspi_flag_get(QSPI1, QSPI_RXFIFORDY_FLAG) == RESET);
for(i = 0; i < len; i++)
{
*pbuff++ = qspi_byte_read(QSPI1);
}
rlen-=len;
}while(rlen);
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET){}
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
}
// 页写入 最大256字节
void W25Qxx_QSPI_Page(u8* pbuff,u32 Addr,u16 wlen)
{
u16 len=0,i=0;
qspi_cmd_type qspi_cmd_struct;
do
{
W25Qxx_QSPI_writeEN();
W25Qxx_QSPI_Busy();
qspi_cmd_struct.pe_mode_enable = FALSE;
qspi_cmd_struct.pe_mode_operate_code = 0;
qspi_cmd_struct.instruction_code = W25X_PageProgram;
qspi_cmd_struct.instruction_length = QSPI_CMD_INSLEN_1_BYTE;
qspi_cmd_struct.address_code = Addr;
qspi_cmd_struct.address_length = QSPI_CMD_ADRLEN_4_BYTE;
qspi_cmd_struct.data_counter = wlen;
qspi_cmd_struct.second_dummy_cycle_num = 0;
qspi_cmd_struct.operation_mode = QSPI_OPERATE_MODE_444;
qspi_cmd_struct.read_status_config = QSPI_RSTSC_HW_AUTO;
qspi_cmd_struct.read_status_enable = FALSE;
qspi_cmd_struct.write_data_enable = TRUE;
qspi_cmd_operation_kick(QSPI1,&qspi_cmd_struct);
if(wlen>=128)
len=128;
else
len=wlen;
for(i = 0; i < len; i++)
{
while(qspi_flag_get(QSPI1, QSPI_TXFIFORDY_FLAG) == RESET);
qspi_byte_write(QSPI1, *pbuff++);
}
wlen -= len;
Addr += len;
while(qspi_flag_get(QSPI1, QSPI_CMDSTS_FLAG) == RESET);
qspi_flag_clear(QSPI1, QSPI_CMDSTS_FLAG);
W25Qxx_QSPI_Busy();
}while(wlen);
}
//不检查擦除写入
void W25Qx_QSPI_wNoCheck(u8* pBuffer,u32 WriteAddr,u16 wlen)
{
u16 pageremain;
pageremain=256-WriteAddr%256; //单页剩余的字节数
if(wlen<=pageremain)pageremain=wlen;//不大于256个字节
while(1)
{
W25Qxx_QSPI_Page(pBuffer,WriteAddr,pageremain);
if(wlen==pageremain)
break;//写入结束了
else //NumByteToWrite>pageremain
{
pBuffer+=pageremain;
WriteAddr+=pageremain;
wlen-=pageremain; //减去已经写入了的字节数
if(wlen>256)
pageremain=256; //一次可以写入256个字节
else
pageremain=wlen; //不够256个字节了
}
}
}
//数据写入函数
u8 W25QXX_BUFFER[4096];
void W25Qxx_QSPI_Write(u8* pBuffer,u32 WriteAddr,u16 wlen)
{
u32 secpos;
u16 secoff;
u16 secremain;
u16 i;
u8 * W25QXX_BUF;
W25QXX_BUF=W25QXX_BUFFER;
secpos=WriteAddr/4096;//扇区地址
secoff=WriteAddr%4096;//在扇区内的偏移
secremain=4096-secoff;//扇区剩余空间大小
//printf("ad:%X,nb:%X\r\n",WriteAddr,NumByteToWrite);//测试用
if(wlen<=secremain)secremain=wlen;//不大于4096个字节
while(1)
{
W25Qxx_QSPI_Read(W25QXX_BUF,secpos*4096,4096);//读出整个扇区的内容
for(i=0;i<secremain;i++)//校验数据
{
if(W25QXX_BUF[secoff+i]!=0XFF)break;//需要擦除
}
if(i<secremain)//需要擦除
{
W25Qxx_QSPI_EraseSector(secpos);//擦除这个扇区
for(i=0;i<secremain;i++) //复制
{
W25QXX_BUF[i+secoff]=pBuffer[i];
}
W25Qx_QSPI_wNoCheck(W25QXX_BUF,secpos*4096,4096);//写入整个扇区
}
else
W25Qx_QSPI_wNoCheck(pBuffer,WriteAddr,secremain);//写已经擦除了的,直接写入扇区剩余区间.
if(wlen==secremain)
break;//写入结束了
else//写入未结束
{
secpos++;//扇区地址增1
secoff=0;//偏移位置为0
pBuffer+=secremain; //指针偏移
WriteAddr+=secremain; //写地址偏移
wlen-=secremain;//字节数递减
if(wlen>4096)
secremain=4096; //下一个扇区还是写不完
else
secremain=wlen; //下一个扇区可以写完了
}
};
}
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