Unable to read/write data on h2f_axi_master port

Question

Hi everyone,

I am trying to read/write data on avalon-mm port connected to h2f_axi_master port of hps on Cyclone V SoC device. But it does not work.

But when I connect this avalon port to h2f_lw_axi port, it works well.

Anyone who knows the problems, please show me.

I really need to read avalon data on h2f_axi_master port.

Thanks in advance!

dpt

altera_forum · Answer

use the following commands to check the status of the bridges, they could be stuck in reset.

Command Description

cat /sys/class/fpga/fpga0/status Determine the current FPGA state

cat /sys/class/fpga-bridge/fpga2hps/enable

cat /sys/class/fpga-bridge/hps2fpga/enable

cat /sys/class/fpga-bridge/lwhps2fpga/enable Determine bridge status

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