Nios2 access to EPCS device without using HAL drivers

EPCS device controller info can be found on:

The source files for the HAL are in the components directory of either the Nios or Quartus install. In this case, they are under quartus. The files you're interested in are altera_avalon_epcs_flash_controller.c/h as noted in the EPCS Device Controller Core with Avalon Interface document, page 3-5. You can glean the operation from these files or just include them in your build and use the HAL interface. Just using them should not affect which C library you use. Most likely, the issues you're running into with respect to the C library are due to using the IDE rather than setting up your own build.

Mark

It may be easier if you use Marco Groeneveld's EPCS Virtual Memory controller. It attaches the EPCS serial Flash to the Avalon bus as a parallel device you can just read and write. You can find it on:

Look in the section IP Cores.

BTW: The Firefly is a neat board as well.

Best regards,

Ben Twijnstra Altera Tech Support SascoHolz Nederland