我有一个支持 SPI 的 Winbond W25Q64JVSSIQ 闪存芯片。我已经通过 SOP8 电缆将 BusPirate 连接到内存芯片。PWR并且VREGLED 亮起，因此它们已连接。BusPirate 连接到我主机上的 Kali Linux VM。我正在使用命令sudo ./flashrom -p buspirate_spi:dev=/dev/ttyUSB0来识别芯片，但flashrom无法识别。

root@malnet:/opt/flashrom# sudo ./flashrom -p buspirate_spi:dev=/dev/ttyUSB0
flashrom v1.1-rc1-121-g8962267 on Linux 4.19.0-kali5-amd64 (x86_64)
flashrom is free software, get the source code at https://flashrom.org

Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns).
Bus Pirate firmware 6.1 and older does not support SPI speeds above 2 MHz. Limiting speed to 2 MHz.
It is recommended to upgrade to firmware 6.2 or newer.
No EEPROM/flash device found.
Note: flashrom can never write if the flash chip isn't found automatically.

如何从芯片中转储固件？关于为什么flashrom可能不起作用或转储的替代方法的任何想法？