Hi Officer,

I am currently trying to download flash (both sof and elf)file to EPCS (S25FL128SAGMFi011) on DE-1 SoC (Cyclone V 5CSEMA5F31C6).

By using the method in AN98558, I have succeeded downloading everything to my FPGA board and the command shell displays everything correctly. But it can only be proceeded once.

After the first time, I power off and on the FPGA board. Then I will get this error in Nios2 command shell: Error(209014): CONF_DONE pin failed to go high in device 2. Make sure all communication cables are securely connected, select a different device, check the power on the target system, or make sure all nCE pins are connected to GND.

I am a software engineer and I don't find any settings on Quartus that can set these pins. My questions are:

1.How can I reprogram the EPCS again via Nios2 command shell?

2. Do I need to use any external circuits or devices to actually set these pins to GND?

I am using Quartus 18.1 on windows 11 and the methods for Quartus 17 mentioned in AN98558 works perfect for me. I have attached the pictures of FPGA, S25FL128SAGMFi011 and the error message below. 

Any suggestion will be appreciated. Thank you.

Can only write28 bytes in one write 24bit address quad command.

Looping can write a large size via the small chunks

The device appears to be locked in quad mode ?

Is there ANY jedec sequences that should work

Here a synopsys controller is sending commands erase/ get device id etc all work

Perhaps some "trick" bit must be set.

The mbed os code targeting cypress appears to simply dump data to the fifo.

Is there any  "kit" from infineon to easy see the chip do ALL the tricks ?

Thanks for any reply !