Why does the TX, RX and CSR reset not work correctly when using the Intel® Stratix® 10 FPAG E-Tile Hard IP for Ethernet Intel® FPGA IP Core?

Description

When using the Intel® Stratix® 10 FPGA E-Tile Hard IP for Ethernet Intel® FPGA IP Core, the TX, RX and CSR resets do not work correctly due to an error in the file alt_ehipc3_sl_soft.sv, the following signals are connected as below:

          .soft_tx_rst_in            (i_sl_soft_csr_rst),

          .soft_rx_rst_in            (i_sl_soft_tx_rst),

          .soft_csr_rst_in          (i_sl_soft_rx_rst),

This has been confirmed as a bug. 

Resolution

To work around this problem use the signals in the following manner: 

1.  To reset the soft_tx-rst_in use i_sl_soft_csr_rst

2. To reset the soft_rx_rst_in use i_sl_soft_tx_rst 

3. To reset the soft_csr_rst_in use i_sl_soft_rx_rst

This problem has been fixed starting in Intel® Quartus® Prime software version 18.0 update 1.