Other Parts Discussed in Thread: OPT8241,
We are debugging a custom board based on OPT8241/OPT9221 that does not provide frames (USBIO error). We would like to use fixe pattern frames to confirm the origin of the problem. Could you answer the following questions:
- When using phy_test_enable or mac_test_enable, does the frame come from the sensor (OPT82141) through the OPT9221 or is generated directly by the OPT9221 (even if the sensor or the transfer from the sensor is not working)? If we do not receive frames with these modes, can we conclude that the issue is between the OPT9221 and the FX2?
- What is the difference between phy_test_enable and mac_test_enable (except the shape of the pattern)?
- If the sensor (OPT8241) is badly configured (does not produce frames), should we receive frames using phy_test_enable or mac_test_enable?
Thanks.
Pierre Cottin