S25FL208K not responding | Cypress Semiconductor
S25FL208K not responding
I am developing an application where a microcontroller has to communicate with a s25fl208k memory by spi.
I have been trying to communicate with the not flash, so I power it up, configure the spi (100000 kbps, msb) and send the Read Manufacturer / Device ID (90h) command, but I always get no response (all 0s). I checked the SO line with the oscilloscope and it is always 0, no matter what spi polarity and phase I choose.
My pcb configuration is:
Please, could you help?