[Cypress Flash]S25HL512T QUAD-SPI Read Issue

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Ken
Level 2
Level 2
10 sign-ins 5 replies posted 5 sign-ins

Hi everyone,

we use the S25HL512T  with QUAD-SPI interface and find some issue about QPI read.

some test pattern as follow:

[Test pattern]
Write 256 bytes Data
Data  pattern1  : { 0x00, 0x01, 0x02 ... 0xFD, 0xFE, 0xFF }
Data  pattern2  : { 0xFF, 0xFE, 0xFD ... 0x02, 0x01, 0x00 }
 
[Write Command]
0x02
 
[Read Command]
0xEB (SDR) or 0xED (DDR)
 
[Erase Command]
0x20
 
[Protocol]
QPI SDR or DDR
 
[Address Byte Length]
3 bytes or 4 bytes
 
When we read the 256-byte data, once read a byte is 0x0F or 0xF0, behind 0x0F or 0xF0 data became abnormal.

Ken_0-1628820514397.png

Does somebody encounter the same problem?

 

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