NOR Flash Erase-Program-Program-Verify

[aaronm]

I am working with a NOR Flash part that uses Infineon dye and have experienced a single bit error. I believe it to be pseudo Single Bit Charge Loss and found Infineon's application note for high reliability programming using a second "Program" step before verifying. Using Windriver Workbench as a flash driver, is it as simple as pressing the "Program" button twice?

Thanks,

Aaron

[BushraH_91]

Hello,

Thank you for contacting Infineon Community Forum. Please provide following detail information:

• What Flash part are you using?
• How bit flip happens, 1 -> 0 or 0 -> 1?
• How many devices are used and how many devices failed?
• How long the system was operated before seeing single bit error?

Thank you

Regards,

Bushra

[aaronm]

Hi Bushra,

Thank you for your response.

- I am using a CAES UT8QNF8M8 64 Mbit NOR Flash

- The bit flip is supposed to be a programmed "0", but sometimes presents as an erased "1".

- There are two devices used a Master and a Monitor, only the monitor side failed.

- I do not know the exact time the system has been operational, but it has been for a long/very significant amount of time and has passed many checkouts.

Thank you,

Aaron

[BushraH_91 · Accepted solution]

Hello,

Please contact CAES (Cobham Advanced Electronic Solutions) for support. This product is not Infineon Flash memory.

Thank you

Regards,

Bushra