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I use S25FL01G when I use normal 1 line read I got real data stored
but when I use Quad commands if data byte has F (1111) NIPPLE then next clock skip reading next nipple like this
if data stored
0F 10 0F 10 ........
it read
0F 00 F0 ..........
problem is confirmed by logic analyser
Solved! Go to Solution.
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Serial NOR
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I got the problem was due to i connected flash to controller board via jumpers
when i do good board with capacitor on power and connect direct to main board it works perfect as manual said
thanks
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Hello,
Thank you for contacting Cypress Semiconductor.
Please provide the actual command and latency count you are currently when initiating the QUAD READ operation.
What are the values bit-7 and bit-6 in the Config Register (CR1) [7:6] currently set to?
What is the current operating frequency?
Please provide your findings/results at your earliest convenience.
Best regards,
Albert
Cypress Semiconductor Corp.
An Infineon Technologies Company
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Hello,
Thank you for contacting Cypress Semiconductor.
Please provide the actual command and latency count you are currently when initiating the QUAD READ operation.
What are the values bit-7 and bit-6 in the Config Register (CR1) [7:6] currently set to?
What is the current operating frequency?
Please provide your findings/results at your earliest convenience.
Best regards,
Albert
Cypress Semiconductor Corp.
An Infineon Technologies Company
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Thanks for reply
I use current setting
command 6C
QUAD_OUT_FAST_READ_4_BYTE_ADDR_CMD 0x6C
LC =00
DUMMY = 8
freq =1MHZ
I tried all options and failed to get real data without shifting in both EC and 6C read commands
I tried higher freq 70 MHZ more corrupted data
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I got the problem was due to i connected flash to controller board via jumpers
when i do good board with capacitor on power and connect direct to main board it works perfect as manual said
thanks