diff --git a/sdk/bsp/bsp.mk b/sdk/bsp/bsp.mk
index a0b2023..157ca0b 100644
--- a/sdk/bsp/bsp.mk
+++ b/sdk/bsp/bsp.mk
@@ -1,66 +1,67 @@
-RISCV_TOOLS_PATH := /opt/riscv32/bin
-RISCV_TOOLS_PREFIX := riscv32-unknown-elf-
-
-RISCV_GCC     := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)gcc)
-RISCV_AS      := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)as)
-RISCV_GXX     := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)g++)
-RISCV_OBJDUMP := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)objdump)
-RISCV_GDB     := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)gdb)
-RISCV_AR      := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)ar)
-RISCV_OBJCOPY := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)objcopy)
-RISCV_READELF := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)readelf)
-
-BIN_TO_MEM    := $(BSP_DIR)/../../tools/BinToMem.py
-
-.PHONY: all
-all: $(TARGET)
-
-ASM_SRCS += $(BSP_DIR)/crt0.S
-ASM_SRCS += $(BSP_DIR)/trap_entry.S
-
-C_SRCS += $(BSP_DIR)/lib/utils.c
-C_SRCS += $(BSP_DIR)/lib/xprintf.c
-C_SRCS += $(BSP_DIR)/lib/uart.c
-C_SRCS += $(BSP_DIR)/lib/sim_ctrl.c
-C_SRCS += $(BSP_DIR)/lib/timer.c
-C_SRCS += $(BSP_DIR)/lib/gpio.c
-C_SRCS += $(BSP_DIR)/lib/rvic.c
-C_SRCS += $(BSP_DIR)/lib/i2c.c
-C_SRCS += $(BSP_DIR)/lib/spi.c
-C_SRCS += $(BSP_DIR)/lib/pinmux.c
-C_SRCS += $(BSP_DIR)/lib/flash_n25q.c
-C_SRCS += $(BSP_DIR)/lib/flash_ctrl.c
-
-LINKER_SCRIPT := $(BSP_DIR)/link_rom.lds
-
-INCLUDES += -I$(BSP_DIR)
-
-LDFLAGS += -T $(LINKER_SCRIPT) -nostartfiles -Wl,--gc-sections -Wl,--check-sections
-
-ASM_OBJS := $(ASM_SRCS:.S=.o)
-C_OBJS := $(C_SRCS:.c=.o)
-
-LINK_OBJS += $(ASM_OBJS) $(C_OBJS)
-LINK_DEPS += $(LINKER_SCRIPT)
-
-CLEAN_OBJS += $(TARGET) $(LINK_OBJS) $(TARGET).dump $(TARGET).bin $(TARGET).hex $(TARGET).mem
-
-CFLAGS += -march=$(RISCV_ARCH)
-CFLAGS += -mabi=$(RISCV_ABI)
-CFLAGS += -mcmodel=$(RISCV_MCMODEL) -ffunction-sections -fdata-sections -fno-builtin-printf -fno-builtin-malloc
-
-$(TARGET): $(LINK_OBJS) $(LINK_DEPS) Makefile
-	$(RISCV_GCC) $(CFLAGS) $(INCLUDES) $(LINK_OBJS) -o $@ $(LDFLAGS)
-	$(RISCV_OBJCOPY) -O binary $@ $@.bin
-	$(RISCV_OBJDUMP) --disassemble-all $@ > $@.dump
-	$(BIN_TO_MEM) $@.bin $@.mem
-
-$(ASM_OBJS): %.o: %.S
-	$(RISCV_GCC) $(CFLAGS) $(INCLUDES) -c -o $@ $<
-
-$(C_OBJS): %.o: %.c
-	$(RISCV_GCC) $(CFLAGS) $(INCLUDES) -c -o $@ $<
-
-.PHONY: clean
-clean:
-	rm -f $(CLEAN_OBJS)
+RISCV_TOOLS_PATH := /opt/riscv32/bin
+RISCV_TOOLS_PREFIX := riscv32-unknown-elf-
+
+RISCV_GCC     := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)gcc)
+RISCV_AS      := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)as)
+RISCV_GXX     := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)g++)
+RISCV_OBJDUMP := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)objdump)
+RISCV_GDB     := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)gdb)
+RISCV_AR      := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)ar)
+RISCV_OBJCOPY := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)objcopy)
+RISCV_READELF := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)readelf)
+
+BIN_TO_MEM    := $(BSP_DIR)/../../tools/BinToMem.py
+
+.PHONY: all
+all: $(TARGET)
+
+ASM_SRCS += $(BSP_DIR)/crt0.S
+ASM_SRCS += $(BSP_DIR)/trap_entry.S
+
+C_SRCS += $(BSP_DIR)/lib/utils.c
+C_SRCS += $(BSP_DIR)/lib/xprintf.c
+C_SRCS += $(BSP_DIR)/lib/uart.c
+C_SRCS += $(BSP_DIR)/lib/sim_ctrl.c
+C_SRCS += $(BSP_DIR)/lib/timer.c
+C_SRCS += $(BSP_DIR)/lib/gpio.c
+C_SRCS += $(BSP_DIR)/lib/rvic.c
+C_SRCS += $(BSP_DIR)/lib/i2c.c
+C_SRCS += $(BSP_DIR)/lib/spi.c
+C_SRCS += $(BSP_DIR)/lib/pinmux.c
+C_SRCS += $(BSP_DIR)/lib/flash_n25q.c
+C_SRCS += $(BSP_DIR)/lib/flash_gd25q.c
+C_SRCS += $(BSP_DIR)/lib/flash_ctrl.c
+
+LINKER_SCRIPT := $(BSP_DIR)/link_rom.lds
+
+INCLUDES += -I$(BSP_DIR)
+
+LDFLAGS += -T $(LINKER_SCRIPT) -nostartfiles -Wl,--gc-sections -Wl,--check-sections
+
+ASM_OBJS := $(ASM_SRCS:.S=.o)
+C_OBJS := $(C_SRCS:.c=.o)
+
+LINK_OBJS += $(ASM_OBJS) $(C_OBJS)
+LINK_DEPS += $(LINKER_SCRIPT)
+
+CLEAN_OBJS += $(TARGET) $(LINK_OBJS) $(TARGET).dump $(TARGET).bin $(TARGET).hex $(TARGET).mem
+
+CFLAGS += -march=$(RISCV_ARCH)
+CFLAGS += -mabi=$(RISCV_ABI)
+CFLAGS += -mcmodel=$(RISCV_MCMODEL) -ffunction-sections -fdata-sections -fno-builtin-printf -fno-builtin-malloc
+
+$(TARGET): $(LINK_OBJS) $(LINK_DEPS) Makefile
+	$(RISCV_GCC) $(CFLAGS) $(INCLUDES) $(LINK_OBJS) -o $@ $(LDFLAGS)
+	$(RISCV_OBJCOPY) -O binary $@ $@.bin
+	$(RISCV_OBJDUMP) --disassemble-all $@ > $@.dump
+	$(BIN_TO_MEM) $@.bin $@.mem
+
+$(ASM_OBJS): %.o: %.S
+	$(RISCV_GCC) $(CFLAGS) $(INCLUDES) -c -o $@ $<
+
+$(C_OBJS): %.o: %.c
+	$(RISCV_GCC) $(CFLAGS) $(INCLUDES) -c -o $@ $<
+
+.PHONY: clean
+clean:
+	rm -f $(CLEAN_OBJS)
diff --git a/sdk/bsp/include/flash_gd25q.h b/sdk/bsp/include/flash_gd25q.h
new file mode 100644
index 0000000..5b4bfcc
--- /dev/null
+++ b/sdk/bsp/include/flash_gd25q.h
@@ -0,0 +1,47 @@
+#ifndef _FLASH_GD25Q_H_
+#define _FLASH_GD25Q_H_
+
+#define GD25Q_PAGE_SIZE 	                (256)
+
+#define GD25Q_PAGE_TO_ADDR(page)            ((page) << 8)
+#define GD25Q_SECTOR_TO_ADDR(sector)        ((sector) << 12)
+
+#define CMD_WRITE_STATUS_REG1		        (0x01)
+#define CMD_WRITE_STATUS_REG2		        (0x31)
+#define CMD_WRITE_STATUS_REG3		        (0x11)
+#define CMD_READ_STATUS_REG1 		        (0x05)
+#define CMD_READ_STATUS_REG2 		        (0x35)
+#define CMD_READ_STATUS_REG3 		        (0x15)
+#define CMD_PAGE_PROGRAM			        (0x02)
+#define CMD_QUAD_PAGE_PROGRAM			    (0x32)
+#define CMD_READ 					        (0x03)
+#define CMD_QUAD_IO_FAST_READ               (0xeb)
+#define CMD_WRITE_ENABLE 			        (0x06)
+#define CMD_WRITE_DISABLE 			        (0x04)
+#define CMD_SECTOR_ERASE			        (0x20)
+#define CMD_BLOCK32K_ERASE                  (0x52)
+#define CMD_BLOCK64K_ERASE                  (0xd8)
+#define CMD_READ_ID                         (0x90)
+#define CMD_QUAD_IO_READ_ID                 (0x94)
+
+#define DUMMY_CNT                           (0x4)
+
+typedef struct {
+    uint8_t manf_id;
+    uint8_t dev_id;
+} gd25q_id_t;
+
+void flash_gd25q_init(uint32_t controller, uint16_t clk_div);
+void flash_gd25q_set_spi_mode(uint8_t mode);
+void flash_gd25q_set_spi_controller(uint32_t controller);
+gd25q_id_t flash_gd25q_read_id();
+void flash_gd25q_write_enable(uint8_t en);
+uint8_t flash_gd25q_read_reg(uint8_t cmd);
+void flash_gd25q_write_reg(uint8_t cmd, uint8_t data);
+uint8_t flash_gd25q_is_busy();
+void flash_gd25q_read(uint8_t data[], uint32_t len, uint32_t addr);
+void flash_gd25q_sector_erase(uint32_t sector);
+void flash_gd25q_page_program(uint8_t data[], uint32_t len, uint32_t page);
+void flash_gd25q_enable_quad_mode(uint8_t en);
+
+#endif
diff --git a/sdk/bsp/lib/flash_gd25q.c b/sdk/bsp/lib/flash_gd25q.c
new file mode 100644
index 0000000..a88dce8
--- /dev/null
+++ b/sdk/bsp/lib/flash_gd25q.c
@@ -0,0 +1,244 @@
+#include <stdint.h>
+
+#include "../../bsp/include/spi.h"
+#include "../../bsp/include/rvic.h"
+#include "../../bsp/include/utils.h"
+#include "../../bsp/include/flash_gd25q.h"
+
+/* GD25Q127特点:
+ * 1.总共128Mb大小，即16MB
+ * 2.总共64K页，每页大小256字节
+ * 3.总共4K扇区，每个扇区大小为4K字节，16页
+ * 4.总共256个block，每个block大小为64K字节，16个扇区
+ * 5.擦除的最小单位是扇区，编程(写)的最小单位是页，读的最小单位是字节
+ */
+
+static uint8_t current_spi_mode;
+static uint32_t spi_base_addr;
+
+void flash_gd25q_init(uint32_t controller, uint16_t clk_div)
+{
+    spi_base_addr = controller;
+
+    spi_set_clk_div(spi_base_addr, clk_div);
+    spi_set_role_mode(spi_base_addr, SPI_ROLE_MODE_MASTER);
+    spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
+    spi_set_cp_mode(spi_base_addr, SPI_CPOL_0_CPHA_0);
+    spi_set_msb_first(spi_base_addr);
+    spi_master_set_ss_delay(spi_base_addr, 1);
+    spi_set_ss_level(spi_base_addr, 1);
+    spi_set_ss_ctrl_by_sw(spi_base_addr, 1);
+    spi_set_enable(spi_base_addr, 1);
+}
+
+void flash_gd25q_set_spi_mode(uint8_t mode)
+{
+    current_spi_mode = mode;
+}
+
+void flash_gd25q_set_spi_controller(uint32_t controller)
+{
+    spi_base_addr = controller;
+}
+
+// 写使能
+// 擦除或者编程或者写寄存器之前必须先发送写使能命令
+void flash_gd25q_write_enable(uint8_t en)
+{
+    uint8_t cmd;
+
+    if (en)
+        cmd = CMD_WRITE_ENABLE;
+    else
+        cmd = CMD_WRITE_DISABLE;
+
+    spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
+
+    spi_set_ss_level(spi_base_addr, 0);
+    spi_master_write_bytes(spi_base_addr, &cmd, 1);
+    spi_set_ss_level(spi_base_addr, 1);
+
+    spi_set_spi_mode(spi_base_addr, current_spi_mode);
+}
+
+// 读寄存器
+uint8_t flash_gd25q_read_reg(uint8_t cmd)
+{
+    uint8_t data;
+
+    spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
+
+    spi_set_ss_level(spi_base_addr, 0);
+    spi_master_write_bytes(spi_base_addr, &cmd, 1);
+    spi_master_read_bytes(spi_base_addr, &data, 1);
+    spi_set_ss_level(spi_base_addr, 1);
+
+    spi_set_spi_mode(spi_base_addr, current_spi_mode);
+
+    return data;
+}
+
+// 写寄存器
+void flash_gd25q_write_reg(uint8_t cmd, uint8_t data)
+{
+    spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
+
+    spi_set_ss_level(spi_base_addr, 0);
+    spi_master_write_bytes(spi_base_addr, &cmd, 1);
+    spi_master_write_bytes(spi_base_addr, &data, 1);
+    spi_set_ss_level(spi_base_addr, 1);
+
+    spi_set_spi_mode(spi_base_addr, current_spi_mode);
+}
+
+// 是否正在擦除或者编程
+uint8_t flash_gd25q_is_busy()
+{
+    if (flash_gd25q_read_reg(CMD_READ_STATUS_REG1) & 0x1)
+        return 1;
+    else
+        return 0;
+}
+
+// 读数据
+// addr: 0, 1, 2, ...
+void flash_gd25q_read(uint8_t data[], uint32_t len, uint32_t addr)
+{
+    uint8_t cmd, i;
+    uint8_t tran_addr[4];
+
+    tran_addr[0] = (addr >> 16) & 0xff;
+    tran_addr[1] = (addr >> 8)  & 0xff;
+    tran_addr[2] = (addr >> 0)  & 0xff;
+    tran_addr[3] = 0x00;
+
+    if (current_spi_mode == SPI_MODE_STANDARD) {
+        cmd = CMD_READ;
+        spi_set_ss_level(spi_base_addr, 0);
+        spi_master_write_bytes(spi_base_addr, &cmd, 1);
+        spi_master_write_bytes(spi_base_addr, tran_addr, 3);
+        spi_master_read_bytes(spi_base_addr, data, len);
+        spi_set_ss_level(spi_base_addr, 1);
+    } else {
+        cmd = CMD_QUAD_IO_FAST_READ;
+        // 标准模式发送CMD
+        spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
+        spi_set_ss_level(spi_base_addr, 0);
+        spi_master_write_bytes(spi_base_addr, &cmd, 1);
+        spi_set_spi_mode(spi_base_addr, SPI_MODE_QUAD);
+        // QSPI模式发送ADDR
+        spi_master_write_bytes(spi_base_addr, tran_addr, 4);
+        for (i = 0; i < (DUMMY_CNT >> 1); i++)
+            spi_master_read_bytes(spi_base_addr, data, 1);
+        spi_reset_rxfifo(spi_base_addr);
+        spi_master_read_bytes(spi_base_addr, data, len);
+        spi_set_ss_level(spi_base_addr, 1);
+    }
+}
+
+static void sector_erase(uint8_t cmd, uint32_t addr)
+{
+    uint8_t tran_addr[3];
+
+    flash_gd25q_write_enable(1);
+
+    tran_addr[0] = (addr >> 16) & 0xff;
+    tran_addr[1] = (addr >> 8)  & 0xff;
+    tran_addr[2] = (addr >> 0)  & 0xff;
+
+    spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
+
+    spi_set_ss_level(spi_base_addr, 0);
+    spi_master_write_bytes(spi_base_addr, &cmd, 1);
+    spi_master_write_bytes(spi_base_addr, tran_addr, 3);
+    spi_set_ss_level(spi_base_addr, 1);
+
+    while (flash_gd25q_is_busy());
+
+    flash_gd25q_write_enable(0);
+
+    spi_set_spi_mode(spi_base_addr, current_spi_mode);
+}
+
+// 扇区擦除
+// sector，第几个扇区: 0 ~ N
+void flash_gd25q_sector_erase(uint32_t sector)
+{
+    sector_erase(CMD_SECTOR_ERASE, GD25Q_SECTOR_TO_ADDR(sector));
+}
+
+// 页编程
+// page，第几页: 0 ~ N
+void flash_gd25q_page_program(uint8_t data[], uint32_t len, uint32_t page)
+{
+    uint8_t tran_addr[3];
+    uint8_t cmd;
+    uint32_t addr;
+
+    flash_gd25q_write_enable(1);
+
+    addr = GD25Q_PAGE_TO_ADDR(page);
+    tran_addr[0] = (addr >> 16) & 0xff;
+    tran_addr[1] = (addr >> 8)  & 0xff;
+    tran_addr[2] = (addr >> 0)  & 0xff;
+
+    if (current_spi_mode == SPI_MODE_STANDARD)
+        cmd = CMD_PAGE_PROGRAM;
+    else
+        cmd = CMD_QUAD_PAGE_PROGRAM;
+
+    spi_set_ss_level(spi_base_addr, 0);
+    spi_set_spi_mode(spi_base_addr, SPI_MODE_STANDARD);
+    spi_master_write_bytes(spi_base_addr, &cmd, 1);
+    spi_master_write_bytes(spi_base_addr, tran_addr, 3);
+    spi_set_spi_mode(spi_base_addr, current_spi_mode);
+    spi_master_write_bytes(spi_base_addr, data, len);
+    spi_set_ss_level(spi_base_addr, 1);
+
+    while (flash_gd25q_is_busy());
+
+    flash_gd25q_write_enable(0);
+}
+
+// 使能QUAD SPI模式
+void flash_gd25q_enable_quad_mode(uint8_t en)
+{
+    uint8_t data;
+
+    flash_gd25q_write_enable(1);
+
+    data = flash_gd25q_read_reg(CMD_READ_STATUS_REG2);
+    if (en) {
+        data |= 1 << 1;
+    } else {
+        data &= ~(1 << 1);
+    }
+    flash_gd25q_write_reg(CMD_WRITE_STATUS_REG2, data);
+
+    flash_gd25q_write_enable(0);
+}
+
+// 读flash ID
+gd25q_id_t flash_gd25q_read_id()
+{
+    gd25q_id_t id;
+    uint8_t cmd;
+    uint8_t tran_addr[3];
+    uint8_t data[2];
+
+    tran_addr[0] = 0x00;
+    tran_addr[1] = 0x00;
+    tran_addr[2] = 0x00;
+
+    cmd = CMD_READ_ID;
+    spi_set_ss_level(spi_base_addr, 0);
+    spi_master_write_bytes(spi_base_addr, &cmd, 1);
+    spi_master_write_bytes(spi_base_addr, tran_addr, 3);
+    spi_master_read_bytes(spi_base_addr, data, 2);
+    spi_set_ss_level(spi_base_addr, 1);
+
+    id.manf_id = data[0];
+    id.dev_id = data[1];
+
+    return id;
+}
diff --git a/sdk/examples/spi_master/main_gd25q.c b/sdk/examples/spi_master/main_gd25q.c
new file mode 100644
index 0000000..4dad099
--- /dev/null
+++ b/sdk/examples/spi_master/main_gd25q.c
@@ -0,0 +1,128 @@
+#include <stdint.h>
+
+#include "../../bsp/include/uart.h"
+#include "../../bsp/include/spi.h"
+#include "../../bsp/include/xprintf.h"
+#include "../../bsp/include/utils.h"
+#include "../../bsp/include/rvic.h"
+#include "../../bsp/include/pinmux.h"
+#include "../../bsp/include/sim_ctrl.h"
+#include "../../bsp/include/flash_gd25q.h"
+
+
+#define BUFFER_SIZE   (64)
+
+uint8_t program_data[BUFFER_SIZE];
+uint8_t read_data[BUFFER_SIZE];
+
+// 标准三线SPI测试
+static void standard_spi_test()
+{
+    uint16_t i;
+    gd25q_id_t id;
+
+    xprintf("Standard SPI test started...\n");
+
+    flash_gd25q_set_spi_mode(SPI_MODE_STANDARD);
+    // 读flash ID
+    id = flash_gd25q_read_id();
+    xprintf("manf id = 0x%2x\n", id.manf_id);
+    xprintf("dev id = 0x%2x\n", id.dev_id);
+
+    // 初始化要编程的数据
+    for (i = 0; i < BUFFER_SIZE; i++)
+        program_data[i] = i + 1;
+
+    // 擦除第0个扇区
+    flash_gd25q_sector_erase(0);
+    xprintf("program data: \n");
+    // 打印要编程的数据
+    for (i = 0; i < BUFFER_SIZE; i++)
+        xprintf("0x%x\n", program_data[i]);
+    // 编程第1页
+    flash_gd25q_page_program(program_data, BUFFER_SIZE, 1);
+    // 读第1页
+    flash_gd25q_read(read_data, BUFFER_SIZE, GD25Q_PAGE_TO_ADDR(1));
+    xprintf("read data: \n");
+    // 打印读出来的数据
+    for (i = 0; i < BUFFER_SIZE; i++)
+        xprintf("0x%x\n", read_data[i]);
+
+    for (i = 0; i < BUFFER_SIZE; i++) {
+        if (program_data[i] != read_data[i]) {
+            xprintf("test failed!!!\n");
+            return;
+        }
+    }
+
+    xprintf("Standard SPI test succ...\n");
+}
+
+// QSPI测试
+static void quad_spi_test()
+{
+    uint16_t i;
+
+    xprintf("\nQuad SPI test started...\n");
+
+    // 使能QSPI模式
+    flash_gd25q_enable_quad_mode(1);
+    flash_gd25q_set_spi_mode(SPI_MODE_QUAD);
+
+    // 初始化要编程的数据
+    for (i = 0; i < BUFFER_SIZE; i++)
+        program_data[i] = i + 2;
+
+    // 擦除第1个扇区
+    flash_gd25q_sector_erase(1);
+    xprintf("program data: \n");
+    // 打印要编程的数据
+    for (i = 0; i < BUFFER_SIZE; i++)
+        xprintf("0x%x\n", program_data[i]);
+    // 编程第16页
+    flash_gd25q_page_program(program_data, BUFFER_SIZE, 16);
+    // 读第16页
+    flash_gd25q_read(read_data, BUFFER_SIZE, GD25Q_PAGE_TO_ADDR(16));
+    xprintf("read data: \n");
+    // 打印读出来的数据
+    for (i = 0; i < BUFFER_SIZE; i++)
+        xprintf("0x%x\n", read_data[i]);
+
+    // 失能QSPI模式
+    flash_gd25q_enable_quad_mode(0);
+    spi_set_spi_mode(SPI0, SPI_MODE_STANDARD);
+    flash_gd25q_set_spi_mode(SPI_MODE_STANDARD);
+
+    for (i = 0; i < BUFFER_SIZE; i++) {
+        if (program_data[i] != read_data[i]) {
+            xprintf("test failed!!!\n");
+            return;
+        }
+    }
+
+    xprintf("Quad SPI test succ...\n");
+}
+
+int main()
+{
+    // UART引脚配置
+    pinmux_set_io0_func(IO0_UART0_TX);
+    pinmux_set_io3_func(IO3_UART0_RX);
+    // SPI引脚配置
+    pinmux_set_io10_func(IO10_SPI_CLK);
+    pinmux_set_io11_func(IO11_SPI_SS);
+    pinmux_set_io12_func(IO12_SPI_DQ0);
+    pinmux_set_io13_func(IO13_SPI_DQ1);
+    pinmux_set_io14_func(IO14_SPI_DQ2);
+    pinmux_set_io15_func(IO15_SPI_DQ3);
+
+    uart_init(UART0, uart0_putc);
+    // 115200bps
+    uart_set_baud_div(UART0, 0x68);
+    flash_gd25q_init(SPI0, 5);
+
+    standard_spi_test();
+    quad_spi_test();
+
+    while (1);
+}