S25fl512s flash not working with spi

ksk10 — Fri, 26 May 2017 11:53:48 GMT

Hi,

I am working on interfacing a spi flash module s25fl512s with MK64FN1M0vll12 controller.

Using processor expert and ksdk 1.3 I generated the Dspi module for spi 1. Disabled the chip select.

Used gpio pin as chip select .

I am able to get the clock running and also shows the data on SDO pin of microcontroller.

But I am not getting any response from the flash. It giving it as 0's when trying to read identification using RDID command.

I have tried spi in both modes , mode 0 and mode 1, but no success. I tried spi with different speeds with maximum of 1 Mhz.

Any help will be appreciated.

Regards,

Sanket

Re: S25fl512s flash not working with spi

xiangjun_rong — Thu, 01 Jun 2017 10:02:22 GMT

Hi,Sanket

can you list the code to access spi flash? can you paste the scope screenshot of spi signals: SCK/MOSI/MISO/SS?

Xiangjun rong