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Altera_Forum
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12 years ago

system.h missing /dev/dma_0, but DMA device is in the top.socpinfo file

I have a working FPGA design with PCIe + DMA + JTAG_UART + NIOS II + Internal Memory. I have been asked to move to a HAL design for the the C code running on NIOS II. I have got to the po...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Slacker .. you may have nailed it .

Went back to QSYS and the DMA read master port was conected to the PCIe TX port only and

not the NIOS II data master port.

This may explain why it is not seen in system.h and the dev list is empty.

Can you say what devices appear in the dev list as the list was empty ... ie does the hardware UART and Timer appear in the list.

They are not in the design but I doen't see any "open" calls for them list they don't need to be opened ??

Thanks for your help ... Bob