In System programming of S25FL127SABMFI101

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JoBa_2147096
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5 replies posted 10 questions asked 5 questions asked

Hi,

We can do flash erase PC -> Jtag cable -> Xilinx FPGA -> flash. S25FL127SABMFI101 Flash device is good.  

We want to erase blocks of flash and update part of flash contents through another SPI interface. The flash user guide is not very clear on this. Can you provide programming sequence for block erase? 

User guide link:

http://www.cypress.com/file/177961/download

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SudheeshK
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250 sign-ins First question asked 750 replies posted

Hi,

Please follow the below steps for sector erase operation.

1. CS# LOW

2. WREN command

3. CS# HIGH

4. CS# LOW

5. Sector erase command (parameter sector or normal sector erase)

6. Address of the sector to be erased

7. CS# HIGH

You can see more details about this in datasheet section "9.6 Erase Flash Array Commands" (page 97, http://www.cypress.com/file/177961/download ).

Thanks and Regards,

Sudheesh

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SudheeshK
Moderator
Moderator
Moderator
250 sign-ins First question asked 750 replies posted

Hi,

Please follow the below steps for sector erase operation.

1. CS# LOW

2. WREN command

3. CS# HIGH

4. CS# LOW

5. Sector erase command (parameter sector or normal sector erase)

6. Address of the sector to be erased

7. CS# HIGH

You can see more details about this in datasheet section "9.6 Erase Flash Array Commands" (page 97, http://www.cypress.com/file/177961/download ).

Thanks and Regards,

Sudheesh

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