Problem with connection to SPI SRAM 23K256

[hankshone]

It looks like you are using a LAB-X1 development board.

Have you modified it for 3.6V?
That SRAM isn't going to work at 5V.
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Yes, I am using the LAB-X1 board for this test.
I provided a 3.3V power supply for the SRAM. But for the SI SO SCK pins I didn't modify them to 3.3V,just connect them directly to the SRAM's pins.