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Altera_Forum's avatar
Altera_Forum
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14 years ago

Nios II interface with pci-express

Hi, I need to instantiate a NIOS II in an already designed FPGA using pci express communication. On the PC side, a driver is writing/reading registers in the FPGA through mapped memory. Now, I'...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

I think this can be done

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The data written into configuration registers of FPGA using PCIe should be given to NIOS

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So One way of transferring the configuration register data to Nios is through PIO

The same you mentioned by triggering an interrupt the config data can be read by NIOS

Also the data can be send out of NIOS using the PIO

This is a slow process but can be used as this is just for configuration