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Altera_Forum
Honored Contributor
8 years agoThank you for your reply. In my system EOP was generated, but the signal tap trigger was wrong, so it was never captured.
Just a note on the possibility of multiple SOPs: The SOP is sent on the first byte of data following the write to the control register at offset 0x1. Even if the control register SOP bit is not de-asserted, the subsequent bytes of data are sent without an SOP. The flow would be as follows: 1. Set the SOP bit (bit 0) at offset 0x1 (Depending on the master and the addressing, it can also be offset 0x4 in your system). 2. Send data by writing the value at offset 0x00. 3. Before sending the last byte of data, set the EOP bit (bit 1) at offset 0x1 (Depending on the master and the addressing, it can also be offset 0x4 in your system). 4. Send the last byte of data by writing the value at offset 0x00.