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Can't connect UCD9222(or UCD9240) via TI's USB adapter
Hi all,I have a problem with UCD9222 and UCD9240. I designed a UCD9240 and UCD9222 power board. UCD9222 is nearly identical
UCD9222 /7242 architecture as on the EVM6678, and now I want to programthe UCD9222(or UCD9240) via TI's USB adapter. But the Fusion software fails to connect the UCD9222(or UCD9240) . Maybe the UCD is damaged, but before replacing I want to ensure there isno other bug.So my question is : what is minimally required to access the UCD registers viaPMBus? I have checked that V33DIO=V33A=3.3V available,/reset=1 and en1=en2=1.
Are there more requirements to access the registersvia PMBus? Do you have any further suggestions where to start searching?
Thanks in advance for your help.Regards,ZQ Zhang
I'm assuming that you are getting a dialog box that looks something like this when you run the Fusion GUI.
If the Scanning Mode is listed as DEVICE_CODE click the Change Device Scanning Options button and select either DEVICE_ID or DEVICE_ID & DEVICE_CODE next to the Set All Addresses To: at the top of the window.
If this isn't the problem please provide additional information on the condition you are experiencing.
As shown below，it still "NO Device Found!"
Attach my schematic below
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