DA14681 外挂flash程序下载问题

Hi Dialog:
使用DA14681开发项目,此前用的windbond w25Q16DW1G程序下载正常；（软件配置的是8Mbit项目），在换装8Mbit Flash后烧录程序出现下列错误，这是什么原因？谢谢！
bootloader file not specified, using internal uartboot.bin

Reading from address: 0x50003200 offset: 0x00000000 chunk size: 0x00000001
Reading from address: 0x50003201 offset: 0x00000000 chunk size: 0x00000001
Reading from address: 0x50003202 offset: 0x00000000 chunk size: 0x00000001
Reading from address: 0x50003204 offset: 0x00000000 chunk size: 0x00000001
Reading from address: 0x5000320a offset: 0x00000000 chunk size: 0x00000001
Writing to address: 0x00000000 offset: 0x00000000 chunk size: 0x00002000
Verify writing to qspi address 0x0 failed.Retrying ...
Writing to address: 0x00000000 offset: 0x00000000 chunk size: 0x00002000
Verify writing to qspi address 0x0 failed.Retrying ...
Writing to address: 0x00000000 offset: 0x00000000 chunk size: 0x00002000
Verify writing to qspi address 0x0 failed.Retrying ...
Writing to address: 0x00000000 offset: 0x00000000 chunk size: 0x00002000
Verify writing to qspi address 0x0 failed.Retrying ...
Writing to address: 0x00000000 offset: 0x00000000 chunk size: 0x00002000
Verify writing to qspi address 0x0 failed.Retrying ...
Writing to address: 0x00000000 offset: 0x00000000 chunk size: 0x00002000
Verify writing to qspi address 0x0 failed.Retrying ...
Writing to address: 0x00000000 offset: 0x00000000 chunk size: 0x00002000
Verify writing to qspi address 0x0 failed.Retrying ...
Writing to address: 0x00000000 offset: 0x00000000 chunk size: 0x00002000
Verify writing to qspi address 0x0 failed.Retrying ...
Writing to address: 0x00000000 offset: 0x00000000 chunk size: 0x00002000
Verify writing to qspi address 0x0 failed.Retrying ...
Writing to address: 0x00000000 offset: 0x00000000 chunk size: 0x00002000
Verify writing to qspi address 0x0 failed.Retrying ...
Writing to address: 0x00000000 offset: 0x00000000 chunk size: 0x00002000
Verify writing to qspi address 0x0 failed.Retrying ...
Write to qspi failed. Abort.
Write executable failed: unknown error (-300)

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