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NXP / i3c-slave-design

MIPI I3C Basic v1.0 communication Slave source code in Verilog with BSD license to support use in sensors and other devices.
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I3c slave configured as i2c slave #9

Closed prats2018 closed 5 years ago

prats2018 commented 5 years ago

Hi, I m configuring this nxp slave as i2c slave with i2c master, Read operation is not happening, I am able to see the data in fb_data, but read is not being initiated. Can you let me know the configuration required to be set for making it work as i2c.

Thanks Prats

pkimelman-nxp commented 5 years ago

I am assuming you are using the APB Slave wrapper and not autonomous slave. If you do not put data into the TX FIFO, it will NACK the read and it will set the ERRWARN bit to tell you that (underrun on address). The normal model is that they write a single byte (index) and you get that in the RX FIFO. You then push data into the TX FIFO which is what they read. The fb_data value should have been pushed into the RX FIFO with fb_data_done. Your app should have seen it then. Regards, Paul

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Hi, I m configuring this nxp slave as i2c slave with i2c master, Read operation is not happening, I am able to see the data in fb_data, but read is not being initiated. Can you let me know the configuration required to be set for making it work as i2c.

Thanks Prats

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pkimelman-nxp commented 5 years ago

prats2018, please let me know if this answered the issue or you are still having problems.