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Ljie.1
Associate
July 17, 2020
Question

M95M02 is no working?

  • July 17, 2020
  • 3 replies
  • 906 views

0693W000001t4sVQAQ.png0693W000001t4qPQAQ.png

Working way: W and Hold is high, Other SPI BUS.

First we send "RDSR" Command but MISO is low like no working, so I try send "WREN" and "WRSR"but is no working.

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3 replies

Pierre P.
ST Employee
July 17, 2020

​Hello,

Even if MISO is low after RDSR doesn't mean it doesn't work. Status register content = 0x00 will give you MISO = low.

Please try  WREN + RSDR. You should have WEL bit = 1

(confirm your hexa command)

BR

Team EEPROM suPPort

Ljie.1
Ljie.1Author
Associate
July 18, 2020

I find the answer.

your datasheet :

1.Before accepting the execution of the Write and Write Status register instructions, the

device checks whether the number of clock pulses comprised in the instructions is a

multiple of eight​.

so: send“RSDR"+"0xff".

Ljie.1
Ljie.1Author
Associate
July 18, 2020

Thanks Team EEPROM suPPort