I have interfaced M25P16 with PIC32MX795F512L. MISO and CS is pulled up to VCC with 10k resistor.
I am sending the 0x9f (MSB first) command for reading device ID and after that 20 dummy bytes are transmitted for generating clock for receiving bytes. But I'm getting unexpected noise pulses on MISO pin as shown in image below.
I have selected clock mode as 1 (i.e. CPOL = 0 and CPHA = 1). I'm sampling input in middle of clock.
One more thing HOLD# and W# are directly connected to VCC(3.3 V). Do I need to make changes in W# and HOLD# states?