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The Cy68023 doesn't find the second chip
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The Cy68023 doesn't find the second chip

NIKOLAY posted on 12 Dec 2011 11:07 AM PST

1 Forum Post

Hello. My name is Nikolay. I am student from St.-Petersburg, Russia.

I have connected chip SAMSUNG K9K8G08U0B to CY68023 according to the scheme (document number ref-12017 December 09.2004). Its pins (SAMSUNG K9K8G08U0B) CE0 and СE1 (Chip Enable 0 and 1) are connected to CY68023 CE0 and CE1 respectively. The program NX2LP NAND Programming Utility  finds the chip (SAMSUNG K9K8G08U0B). Further I connect second  chip SAMSUNG K9K8G08U0B to CY68023. Its  pins (SAMSUNG K9K8G08U0B) CE0 and СE1  are connected to pins CE2 and CE3 CY68023 respectively. The program NX2LP NAND Programming Utility does not find second chip. Both connected chip is good. Why the second chip is not found?




Re: The Cy68023 doesn't find the second chip

Gayathri posted on 13 Dec 2011 02:00 AM PST
Cypress Employee
428 Forum Posts

 Hello Nikolay,

 

If both Nand flashes are inserted into the Nand sockets, with proper connections to cy68023, and then if you plugin the cy68023, the "Nand Device" label of Nandfg utility will reflect as "more than one kind of nand chips detected".

Is it not so for you? Please detail the behaviour seen.

 

Also, as I went through the Samsung K9K8G08U0B datasheet, I could see that there is only one CE signal. Which are the two CE0 and CE1 that you were talking about?

 

Regards,

Gayathri

 






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