Can you try reading the device ID for the Hyperflash. If you get a valid device ID the flash will be working.
Thanks Pradipta for your reply. As I am a person from hardware background, Can you please explain, how to read the device ID.
Thanks for your fast response. I am a person from hardware background. I
don't know much about software part. So can you please tell me how to
read the device ID for hyperflash.
Looking forward to your reply.
Thanks & Best Regards,
Can you try a POR on the device and probe the RSTO# pin. The RSTO# output will transition from the LOW to HIGH impedance state after tVCS, plus any additional user defined POR extension time, after VCC(min) has been reached. Can you check for this transition in the device. You can refer to the wave form in the datasheet for this under POR (Cold Reset) section.
If you see this then device is completing the POR normally.
Also, the device will draw ICC7(max = 100 mA) current. If CS# is LOW during tVCS the device may draw higher than typical POR current during tVCS but will not exceed the maximum, and the level of CS# will not affect the Cold Reset EA. Can you also check if the device is consuming this current.
If you are not observing this two then there is a good chance that the device has gone bad.
Thanks and Regards,