Nor Flash Forum Discussions

Hello

The customer is operating the Write to Buffer at 128 words, but writing can not be completed.

When writing to buffer 64 words once was successful, but writing to buffer (128words) once
fails.It will freeze during writing and the writing will not be completed.

We confirmed that Write to Buffer (128 words) will succeed when SA's address is round number such as 7D0000h, 7D0100h, 7D0200h, 7D0300h etc. However when SA addresses are
7D0020h, 7D0120h, 7D0220h. . .128 words writing did not succeed 

In details, after operating “Program Buffer to Flash” command, 0x0098 is set to RD of “Status
Register Read” command.

Are there restrictions on the difference of SA's address? Or are there any other reasons mentioned
above?

Best Regards

Arai

Hello,

I am working on S25FL164K0XMFI011 NOR flash with SPI interface.

What are recommendations for SPI communication at noisy environment?

Typically it is good practice to add series resistances to clock and signal lines. But what is the best value?

Is it allowed to place additionally capacitor directly connected to MISO (e.g. 100pF).

Can pull-up/pull-down resistors be helpful?@

Hello. Could someone suggest me which of current Cypress products can be used as a replacement for obsolete AM29LV641DL-90REI flash memory.

Thank you in advance.

Best Regards,

Damir Tadic