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#include "SWM221.h"
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#include "W25N01G.h"
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/******************************************************************************************************************************************
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* 函数名称: W25N01G_Init()
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* 功能说明: W25N01G 初始化
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void W25N01G_Init(void)
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{
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QSPI_InitStructure QSPI_initStruct;
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PORT_Init(PORTC, PIN3, PORTC_PIN3_QSPI0_SCLK, 0);
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PORT_Init(PORTC, PIN2, PORTC_PIN2_QSPI0_SSEL, 0);
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PORT_Init(PORTA, PIN15, PORTA_PIN15_QSPI0_MOSI, 1);
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PORT_Init(PORTB, PIN0, PORTB_PIN0_QSPI0_MISO, 1);
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PORT_Init(PORTB, PIN1, PORTB_PIN1_QSPI0_D2, 1);
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PORT_Init(PORTB, PIN2, PORTB_PIN2_QSPI0_D3, 1);
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QSPI_initStruct.Size = QSPI_Size_128MB;
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QSPI_initStruct.ClkDiv = 4;
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QSPI_initStruct.ClkMode = QSPI_ClkMode_3;
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QSPI_initStruct.SampleShift = (QSPI_initStruct.ClkDiv == 2) ? QSPI_SampleShift_1_SYSCLK : QSPI_SampleShift_NONE;
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QSPI_initStruct.IntEn = 0;
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QSPI_Init(QSPI0, &QSPI_initStruct);
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QSPI_Open(QSPI0);
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uint8_t reg = W25N01G_ReadReg(W25N_STATUS_REG2);
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reg |= (1 << W25N_STATUS_REG2_BUF_Pos); // Buffer Read Mode
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W25N01G_WriteReg(W25N_STATUS_REG2, reg);
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}
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/******************************************************************************************************************************************
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* 函数名称: W25N01G_ReadJEDEC()
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* 功能说明: W25N01G 读取 JEDEC ID
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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uint32_t W25N01G_ReadJEDEC(void)
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{
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QSPI_CmdStructure cmdStruct;
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QSPI_CmdStructClear(&cmdStruct);
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cmdStruct.InstructionMode = QSPI_PhaseMode_1bit;
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cmdStruct.Instruction = W25N_CMD_READ_JEDEC;
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cmdStruct.AddressMode = QSPI_PhaseMode_None;
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cmdStruct.AlternateBytesMode = QSPI_PhaseMode_None;
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cmdStruct.DummyCycles = 8;
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cmdStruct.DataMode = QSPI_PhaseMode_1bit;
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cmdStruct.DataCount = 3;
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QSPI_Command(QSPI0, QSPI_Mode_IndirectRead, &cmdStruct);
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while(QSPI_FIFOCount(QSPI0) < 3) __NOP();
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return (QSPI0->DRB << 16) | (QSPI0->DRB << 8) | QSPI0->DRB;
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}
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/******************************************************************************************************************************************
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* 函数名称: W25N01G_Erase()
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* 功能说明: W25N01G 块擦除，块大小为 128KB
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* 输 入: uint32_t addr 要擦除的 SPI Flash 地址，必须 128KB 对齐（即 addr 是 0x20000 的整数倍）
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* uint8_t wait 是否等待 SPI Flash 完成操作操作，1 等待完成 0 立即返回
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void W25N01G_Erase(uint32_t addr, uint8_t wait)
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{
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QSPI_CmdStructure cmdStruct;
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QSPI_CmdStructClear(&cmdStruct);
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cmdStruct.InstructionMode = QSPI_PhaseMode_1bit;
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cmdStruct.Instruction = W25N_CMD_ERASE_BLOCK128KB;
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cmdStruct.AddressMode = QSPI_PhaseMode_1bit;
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cmdStruct.AddressSize = QSPI_PhaseSize_24bit; // 高 8bit 为 dummy clock，低 16bit 为地址
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cmdStruct.Address = addr >> 12; // Page Address
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cmdStruct.AlternateBytesMode = QSPI_PhaseMode_None;
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cmdStruct.DummyCycles = 0;
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cmdStruct.DataMode = QSPI_PhaseMode_None;
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QSPI_WriteEnable(QSPI0);
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QSPI_Command(QSPI0, QSPI_Mode_IndirectWrite, &cmdStruct);
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while(QSPI_Busy(QSPI0)) __NOP();
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if(wait)
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while(W25N01G_FlashBusy()) __NOP();
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}
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/******************************************************************************************************************************************
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* 函数名称: W25N01G_Write_()
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* 功能说明: W25N01G 页写入，页大小为 2112 Byte
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* 输 入: uint32_t addr 要写入到的 SPI Flash 地址，必须是 0x1000（即 4096）的整数倍
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* uint8_t buff[2048] 要写入 SPI Flash 的数据，数组大小必须是 2048 字节，ECC 区域内容由硬件计算生成
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* uint8_t data_width 写入使用的数据线个数，有效值包括 1、4
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* uint8_t data_phase 是否在此函数内执行数据阶段；若否，可在后续通过 DMA 实现更高效的写入
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void W25N01G_Write_(uint32_t addr, uint8_t buff[2048], uint8_t data_width, uint8_t data_phase)
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{
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QSPI_CmdStructure cmdStruct;
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QSPI_CmdStructClear(&cmdStruct);
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uint8_t instruction, dataMode;
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switch(data_width)
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{
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case 1:
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instruction = W25N_CMD_PAGE_PROGRAM;
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dataMode = QSPI_PhaseMode_1bit;
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break;
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case 4:
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instruction = W25N_CMD_PAGE_PROGRAM_4bit;
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dataMode = QSPI_PhaseMode_4bit;
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break;
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}
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cmdStruct.InstructionMode = QSPI_PhaseMode_1bit;
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cmdStruct.Instruction = instruction;
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cmdStruct.AddressMode = QSPI_PhaseMode_1bit;
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cmdStruct.AddressSize = QSPI_PhaseSize_16bit;
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cmdStruct.Address = 0x000; // Column Address
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cmdStruct.AlternateBytesMode = QSPI_PhaseMode_None;
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cmdStruct.DummyCycles = 0;
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cmdStruct.DataMode = dataMode;
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cmdStruct.DataCount = 2048;
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QSPI_WriteEnable(QSPI0);
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QSPI_Command(QSPI0, QSPI_Mode_IndirectWrite, &cmdStruct);
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if(data_phase == 0)
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return;
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if((uint32_t)buff % 4 == 0) // word aligned
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{
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for(int i = 0; i < 2048 / 4; i++)
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{
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uint32_t * p_word = (uint32_t *)buff;
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while(QSPI_FIFOSpace(QSPI0) < 4) __NOP();
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QSPI0->DRW = p_word[i];
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}
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}
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else
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{
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for(int i = 0; i < 2048; i++)
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{
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while(QSPI_FIFOSpace(QSPI0) < 1) __NOP();
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QSPI0->DRB = buff[i];
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}
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}
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while(QSPI_Busy(QSPI0)) __NOP();
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W25N01G_Program_Execute(addr);
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while(W25N01G_FlashBusy()) __NOP();
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}
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/* Program the Data Buffer content into the physical memory page */
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void W25N01G_Program_Execute(uint32_t addr)
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{
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QSPI_CmdStructure cmdStruct;
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QSPI_CmdStructClear(&cmdStruct);
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cmdStruct.InstructionMode = QSPI_PhaseMode_1bit;
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cmdStruct.Instruction = W25N_CMD_PROGRAM_EXECUTE;
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cmdStruct.AddressMode = QSPI_PhaseMode_1bit;
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cmdStruct.AddressSize = QSPI_PhaseSize_24bit; // 高 8bit 为 dummy clock，低 16bit 为地址
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cmdStruct.Address = addr >> 12; // Page Address
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cmdStruct.AlternateBytesMode = QSPI_PhaseMode_None;
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cmdStruct.DummyCycles = 0;
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cmdStruct.DataMode = QSPI_PhaseMode_None;
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QSPI_Command(QSPI0, QSPI_Mode_IndirectWrite, &cmdStruct);
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while(QSPI_Busy(QSPI0)) __NOP();
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}
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/******************************************************************************************************************************************
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* 函数名称: W25N01G_Read_()
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* 功能说明: W25N01G 页读取，页大小为 2112 Byte
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* 输 入: uint32_t addr 要读取自的 SPI Flash 地址，必须是 0x1000（即 4096）的整数倍
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* uint8_t buff[2048] 读取到的数据写入此数组中，数组大小必须是 2048 字节，ECC 数据不读取
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* uint8_t addr_width 读取使用的地址线个数，有效值包括 1、2、4
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* uint8_t data_width 读取使用的数据线个数，有效值包括 1、2、4
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* uint8_t data_phase 是否在此函数内执行数据阶段；若否，可在后续通过 DMA 实现更高效的读取
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void W25N01G_Read_(uint32_t addr, uint8_t buff[2048], uint8_t addr_width, uint8_t data_width, uint8_t data_phase)
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{
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QSPI_CmdStructure cmdStruct;
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QSPI_CmdStructClear(&cmdStruct);
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/* Transfer the data of specified page into the 2112-Byte Data Buffer */
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cmdStruct.InstructionMode = QSPI_PhaseMode_1bit;
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cmdStruct.Instruction = W25N_CMD_PAGE_READ;
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cmdStruct.AddressMode = QSPI_PhaseMode_1bit;
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cmdStruct.AddressSize = QSPI_PhaseSize_24bit; // 高 8bit 为 dummy clock，低 16bit 为地址
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cmdStruct.Address = addr >> 12; // Page Address
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cmdStruct.AlternateBytesMode = QSPI_PhaseMode_None;
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cmdStruct.DummyCycles = 0;
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cmdStruct.DataMode = QSPI_PhaseMode_None;
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QSPI_Command(QSPI0, QSPI_Mode_IndirectWrite, &cmdStruct);
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while(QSPI_Busy(QSPI0)) __NOP();
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while(W25N01G_FlashBusy()) __NOP();
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uint8_t instruction, addressMode, dataMode, dummyCycles;
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switch((addr_width << 4) | data_width)
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{
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case 0x11:
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instruction = W25N_CMD_FAST_READ;
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addressMode = QSPI_PhaseMode_1bit;
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dummyCycles = 8;
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dataMode = QSPI_PhaseMode_1bit;
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break;
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case 0x12:
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instruction = W25N_CMD_FAST_READ_2bit;
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addressMode = QSPI_PhaseMode_1bit;
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dummyCycles = 8;
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dataMode = QSPI_PhaseMode_2bit;
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break;
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case 0x22:
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instruction = W25N_CMD_FAST_READ_IO2bit;
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addressMode = QSPI_PhaseMode_2bit;
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dummyCycles = 4;
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dataMode = QSPI_PhaseMode_2bit;
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break;
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case 0x14:
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instruction = W25N_CMD_FAST_READ_4bit;
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addressMode = QSPI_PhaseMode_1bit;
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dummyCycles = 8;
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dataMode = QSPI_PhaseMode_4bit;
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break;
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case 0x44:
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instruction = W25N_CMD_FAST_READ_IO4bit;
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addressMode = QSPI_PhaseMode_4bit;
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dummyCycles = 4;
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dataMode = QSPI_PhaseMode_4bit;
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break;
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}
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QSPI_CmdStructClear(&cmdStruct);
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cmdStruct.InstructionMode = QSPI_PhaseMode_1bit;
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cmdStruct.Instruction = instruction;
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cmdStruct.AddressMode = addressMode;
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cmdStruct.AddressSize = QSPI_PhaseSize_16bit;
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cmdStruct.Address = 0x000; // Column Address
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cmdStruct.AlternateBytesMode = QSPI_PhaseMode_None;
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cmdStruct.DummyCycles = dummyCycles;
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cmdStruct.DataMode = dataMode;
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cmdStruct.DataCount = 2048;
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QSPI_Command(QSPI0, QSPI_Mode_IndirectRead, &cmdStruct);
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if(data_phase == 0)
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return;
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if((uint32_t)buff % 4 == 0) // word aligned
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{
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for(int i = 0; i < 2048 / 4; i++)
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{
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uint32_t * p_word = (uint32_t *)buff;
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while(QSPI_FIFOCount(QSPI0) < 4) __NOP();
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p_word[i] = QSPI0->DRW;
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}
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}
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else
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{
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for(int i = 0; i < 2048; i++)
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{
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while(QSPI_FIFOCount(QSPI0) < 1) __NOP();
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buff[i] = QSPI0->DRB;
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}
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}
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QSPI_Abort(QSPI0);
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}
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/******************************************************************************************************************************************
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* 函数名称: W25N01G_FlashBusy()
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* 功能说明: W25N01G 忙检测
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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bool W25N01G_FlashBusy(void)
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{
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uint8_t reg = W25N01G_ReadReg(W25N_STATUS_REG3);
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bool busy = (reg & (1 << W25N_STATUS_REG3_BUSY_Pos));
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return busy;
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}
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/******************************************************************************************************************************************
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* 函数名称: W25N01G_FlashProtect()
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* 功能说明: W25N01G 写保护配置
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void W25N01G_FlashProtect(uint8_t protect)
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{
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uint8_t tb = (protect >> 4);
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uint8_t bp = (protect & 0xF);
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uint8_t reg = W25N01G_ReadReg(W25N_STATUS_REG1);
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reg &= ~(W25N_STATUS_REG1_TB_Msk | W25N_STATUS_REG1_BP_Msk);
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reg |= (tb << W25N_STATUS_REG1_TB_Pos) |
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(bp << W25N_STATUS_REG1_BP_Pos);
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W25N01G_WriteReg(W25N_STATUS_REG1, reg);
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}
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void W25N01G_WriteReg(uint8_t reg_addr, uint8_t data)
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{
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QSPI_CmdStructure cmdStruct;
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QSPI_CmdStructClear(&cmdStruct);
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cmdStruct.InstructionMode = QSPI_PhaseMode_1bit;
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cmdStruct.Instruction = W25N_CMD_WRITE_STATUS_REG;
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cmdStruct.AddressMode = QSPI_PhaseMode_1bit;
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cmdStruct.AddressSize = QSPI_PhaseSize_8bit;
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cmdStruct.Address = reg_addr;
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cmdStruct.AlternateBytesMode = QSPI_PhaseMode_None;
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cmdStruct.DummyCycles = 0;
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cmdStruct.DataMode = QSPI_PhaseMode_1bit;
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cmdStruct.DataCount = 1;
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QSPI_Command(QSPI0, QSPI_Mode_IndirectWrite, &cmdStruct);
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QSPI0->DRB = data;
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while(QSPI_Busy(QSPI0)) __NOP();
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}
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uint8_t W25N01G_ReadReg(uint8_t reg_addr)
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{
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QSPI_CmdStructure cmdStruct;
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QSPI_CmdStructClear(&cmdStruct);
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cmdStruct.InstructionMode = QSPI_PhaseMode_1bit;
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cmdStruct.Instruction = W25N_CMD_READ_STATUS_REG;
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cmdStruct.AddressMode = QSPI_PhaseMode_1bit;
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cmdStruct.AddressSize = QSPI_PhaseSize_8bit;
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cmdStruct.Address = reg_addr;
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cmdStruct.AlternateBytesMode = QSPI_PhaseMode_None;
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cmdStruct.DummyCycles = 0;
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cmdStruct.DataMode = QSPI_PhaseMode_1bit;
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cmdStruct.DataCount = 1;
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QSPI_Command(QSPI0, QSPI_Mode_IndirectRead, &cmdStruct);
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while(QSPI_FIFOEmpty(QSPI0)) __NOP();
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return QSPI0->DRB;
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}
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