WhyCan Forum(哇酷开发者社区)

C:\xfel-windows-v1.2.9>xfel spinand
Found spi nand flash 'MX35LF1GE4AB' with 134217728 bytes

C:\xfel-windows-v1.2.9>xfel spinand splwrite 1024 0 sunxi-spl.bin
100% [================================================] 128.000 KB, 98.663 KB/s

C:\xfel-windows-v1.2.9>xfel spinand write 0x20000 u-boot.img
100% [================================================] 427.879 KB, 96.931 KB/s

C:\xfel-windows-v1.2.9>xfel spinand write 0x100000 sun8i-v3s-licheepi-zero-dock.dtb
100% [================================================] 12.109 KB, 109.700 KB/s

C:\xfel-windows-v1.2.9>xfel spinand write 0x120000 zImage
100% [================================================] 4.875 MB, 96.847 KB/s

启动时读出会失败：
NAND read: device 0 offset 0x100000, size 0x10000
NAND read from offset 100000 failed -74
0 bytes read: ERROR

NAND read: device 0 offset 0x120000, size 0x800000
NAND read from offset 120000 failed -74
0 bytes read: ERROR
但如果整片擦除：
C:\xfel-windows-v1.2.9>xfel spinand erase 0 0x8000000
100% [================================================] 128.000 MB, 17.756 MB/s
然后重新上电再写入，启动时就能正常读出：
NAND read: device 0 offset 0x100000, size 0x10000
65536 bytes read: OK

NAND read: device 0 offset 0x120000, size 0x800000
8388608 bytes read: OK

@xboot 感谢提供xfel工具。我用的是一块V3s+MX35LF1GE4AB spinand, 碰到个奇怪的问题。用xfel 直接写入或擦除后写入都会读不出来，但是擦除后下电再上电，然后写入就能成功读出。请教下这是什么原因？谢谢。