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TDA4VM: TDA4 mac crc error

Part Number: TDA4VM

Hi all,

We encountered MAC CRC counting errors in the tda4 product hardware it is designed by ourselves independently . We have communicated with Chinese Ti engineers, as follows

1、China TI's engineers have tested iperf on EVM, and then read the register of CRC, he didn't receive the package of CRC.

2、China TI‘s engineers Suggest us do the loop test of phy port and MAC to see if it may be the problem of phy port. (we will do next )

my colleagues have a question:Can you tell the problem from the rgmii signal measurement results we provide? We haven't checked whether it's rgmii.

China TI’s engineers answered us:The environment of our laboratory cannot test the waveform of high-speed signal, so we can't compare the waveform of normal EVM. Do you have EVM board there? You may need to test it yourself. As for whether the waveform quality has affected the reading of CRC, I have consulted relevant colleagues.

China TI’s engineers suggest us to Synchronize this issue to E2E

with regards