2 Replies Latest reply on Sep 26, 2016 6:11 AM by dmv8086_1887316

    S25FL208K not responding

    dmv8086_1887316

      Hello,

         

      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:

         

      https://s11.postimg.org/aviict5cz/NOR.png

         

       

         

      Please, could you help?