I am trying to create a simple project that uses bitvis_vip_gmii. Starting from the UART example, I have created the scripts folder and the tb and th files. Inside this last one I have
i1_gmii_vvc: entity bitvis_vip_gmii.gmii_vvc
GC_INSTANCE_IDX => 1
gmii_vvc_tx_if => gmii_tx_if,
I am using gmii_tx_if.txd as input to other instance.
Finally, from tb, I am trying to access to the component in two ways:
gmii_write((x"01", x"02"),“Write 2 bytes”, gmii_tx_if); → In this case, I can see all the signal in the simulator but all of them (except clks) are ‘0’.
gmii_write(GMII_VVCT, 0, TX, (x"01", x"02"), “Write 4 to DUT”); → In this case, I obtained the following error:
KERNEL: UVVM: Time out for uvvm cmd : ‘gmii_write(GMII_VVC,0,tx, 2 bytes)’ while waiting for acknowledge from VVC
Moreover if I extend ‘await_completion’ the results continues being the same one.
Could someone give me some indication to help me? I am new on that and I am a bit lost.
Thanks in advance