Writing a W25Q64BV (guado) with Dediprog SF100 with flashrom works fine.

But we can read back the value. The data is not correct.

flashrom found:
"""Found Winbond flash chip "W25Q64" (8192 kB, SPI) on dediprog."""

dpcmd:
"""By reading the chip ID, the chip applies to [ W25Q64BV ]
W25Q64BV parameters to be applied by default
W25Q64BV chip size is 8388608 bytes."""

Using voltage parameter 3.5 fixes the problem.
Not that voltage options 3.3, 3500, 3300  do not work.

flashrom -p dediprog:voltage=3.5 -r  ...