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fpga6's avatar
fpga6
Icon for New Contributor rankNew Contributor
3 years ago
Solved

Arria 10 ASDATA Flash interface

Hi, I am using an Intel Arria 10 FPGA. Is it possible to access the pins ASDATA0/1/2/3 and DCLK to read/write to the configuration flash during user mode, without using Intel's "Generic serial fla...
  • fpga6's avatar
    fpga6
    3 years ago

    Issue resolved, flash problem due to failed/stuck bit in volatile configuration register.

    Solution to accessing Arria 10 ASDATA/DCLK pins, without using Intel IP, during user mode is to use Arria 10 primitives.

lixy's avatar
lixy
Icon for Contributor rankContributor
3 years ago

Hi,


What Frank (FvM) mentioned in the last reply is correct.

Configuration FLASH can be accessed during user mode. But some FPGA AS Configuration pins, including ASDATA, can not be accessed during user mode.

To access the AS configuration FLASH during user mode we can use certain IPs, such as ASMI Parallel II and Generic FLASH loader. User can also write their own user logic module for FLASH controlling.


About these IPs, we need to pay attention to the statements in IP user guide to make sure it works for you.

"The ASMI Parallel Intel FPGA IP core only supports the EPCS, EPCQ, EPCQ-L, and EPCQ-A devices.

The ASMI Parallel II Intel FPGA IP only supports the EPCQ, EPCQ-L, and EPCQ-A devices.

If you are using third-party flash devices, you must use the Generic Serial Flash Interface Intel FPGA IP."


Thanks & Regards,

Xiaoyan