Nios® II Embedded Design Suite (EDS)
Support for Embedded Development Tools, Processors (SoCs and Nios® II processor), Embedded Development Suites (EDSs), Boot and Configuration, Operating Systems, C and C++
Announcements
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
12409 Discussions

flash_boot and CFI table Read Problem

Altera_Forum
Honored Contributor II
809 Views

hii, 

 

my design contains nios2 prosessor i have used generic tristate controller with tristate cudit bridge to interface with flash. 

my desigh system clock is 50 Mhz. i am trying to read CFI table through NIOS2 console window. I can able to read CFI table after power on reset only, but if i read again then in nios2 console window its showing NO CFI table found. but after evet board reset if i read CFI table its coming. but it should come contiuously without board reset. 

 

 

 

Flash Device : Micron M29w128GH70Z86E 

timing parameters which i am using while configuring "generic tristate controller" : setup time : 75 ns, hold time : 0ns, Read wait time : 200ns, write wait time 200 ns; 

 

 

thanks in advance
0 Kudos
0 Replies
Reply