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Understanding USB I2C Communication and MDIO Clause 45 Read Errors

This document explores the complexities of USB I2C communication, particularly focusing on reading a single byte from the device with address 0x22. It addresses user uncertainties around commands, device connections, and the upper GUI interface's role in reading registers of the TCA6424 device. Additionally, it dives into reading the error count register (0x1E) for the TLK10232 channels and various commands for USB MDIO Clause 45 reads. Comprehensive troubleshooting steps and command sequences are provided to aid users facing read errors.

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Understanding USB I2C Communication and MDIO Clause 45 Read Errors

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  1. Transforming TIUsB.lib transformation

  2. USB INIT I can read something but I don’t know what does that mean. I just confirmed that connected between GUI and USB device . Is it Ok ?

  3. USB I2C Read Single Byte Device Adress : 0x22 (?) ReadData => what command can i available ? Where register can I read when I use upper GUI ? => TCA6424 ? Any way , I can not read anying.

  4. MDIO Clause45 Read I can not read anything. DeviceAddr : 0x22 PortAddr : PRTAD[4:1] = > 4b’0000 => 0 ChannelAddr : => 0 If PA[0] = 0, TLK10232’s Channel A will respond. If PA[0] = 1, TLK10232’s Channel B will respond. Regaddr : 0x1E (<= Error Count ‘s regaddr is 0x1E ????) <=// Read HS error counter on Channel A USB_MDIO_Clause45_Read (readHandle, writeHandle, 0, 0, 0x1E, 0x10, &ErrorCount);

  5. USB Raw Read Address : ? DataRead : ? Can i ask about address and data read's command ?

  6. Sequence For read error counter USB init Could you confirm about sequence ? USB MDIO Clause45 Read USB I2C read single Byte

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