How to test if a flash chip is ok?

[kimjin]

i want to test some flash chip, these flash cann't work right, i program the flash and read the flash, but the whole flash is A7E7, it isn't my program file's content.
how should i do to determine if the flash is good or not?
thanks.

 

[kskr1004]

Re: how to test a flash?

hi,
which chip u r using . it support SPI protocal .can u give the part number

 

[kimjin]

Re: how to test a flash?

i'm using am29lv160db-70ei. can it use spi?

 

[RBB]

how to test a flash?

Without reading the data sheet for the part, you may be reading a status register, or some other type of register.