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UCD9222+UCD7242 problem of output

Other Parts Discussed in Thread: UCD9222, UCD7242

hello everybody ,when I use USB  interface  adapter  program  ucd9222,I meet  some  problem 

1  when I use fusion GUI ,export  x0 file ,GUI  need  password ? who can give  me  password ?

2  in online mode ,when  I  select  control  line (high ),output  of ucd7242 is 12V,equal input voltage ,what is wrong ?

  • Hello,

    1. If you are trying to backup the configuration, you should export a project file (.xml) or a dataflash file (.hex).

    2. Based on GUI screenshot, the power rail failed to start. The control line is probably controlling the on/off of the UCD9222. After UCD9222 is commanded to turn on, the output voltage must reach VOUT_UV_WARN within the time period specified in TON_MAX_FAULT_LIMIT. Both parameters are configurable under the VOUT_CONFIG tab in FUSION GUI.  If the rail failed to turn on, TON_MAX Fault will be asserted. As to why the rail failed to turn on, you will have to debug the circuit.

    Thanks,

    Zhiyuan

  • Zhiyuan Hu:

    hello!

    problem about output of 12V is solved ,because the voltage feedback is not connect (due to protect DSP );

    But now,I meet a new  problem :

    when I use PMBUS  simulator contact Board to PC ,within Fusion Design Online mode ,the UCD9222 +UCD 7242 will generate  desired output voltage (1.0V and 0.9V), and  store  RAM data to flash .

    but when  I disconnect PMBUS ,re Power  Board ,the UCD9222+UCD7242 can not generate power ,(0V and  0V),I don't know what's wrong with the UCD9222,why it is doesn't work without PMBUS simulator  ?what we should do ?

    Thanks !