Honored Contributor
Honored ContributorTo close this topic.
That boot loader was the correct one to use. The tools put together the proper load sequence and operate as advertized. The 8 bit transfer in the boot loader is fast enough. I had several problems all of which interfeared with proper operation. 1.) I did a FLASH erase as a seperate process to loading code. My erase routine only erased every other block. I could not pass this off as a feature. SO I fixed it. 2.) The FLASH devices were connected to the tri-state bus. That bus was not connected to the instruction and data master on the NIOS side. 3.) The DMA transfers have not been tested since the 8 bit transfers are fast enough.
