NIOS II Generic Serial Flash IP
I am trying to interface to the onboard configuration Flash on a Cyclone 10GX dev kit via NIOS II.
The dev. kits uses a EPCQL1024F24IN device
The Generic Serial flash interface IP has been setup in the platform designer.
Currently all I am trying to do is read the Device ID.
When reading the ID all I get back is 0xffffffff.
I have tried an oscilloscope on the clock line of the dev kit (R655), and it does not change at all. A clock can be seen on this line however when programming the kit via Quartus programmer.
Inorder to do more testing I changed the IP to output SPI pins, and I joined them to the U58 on the dev kit, namely a IS25WP256D-RHLE device.
Using the same code as before, the device ID is read properly.
Presumably I am doing something wrong somewhere , any suggestions at all?
Many thanks