cy8c20467s i2c voltage problem

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cy8c20467s i2c voltage problem

Postby mask00 » Thu May 31, 2012 12:20 am

Hi Sirs,
I use the i2c-bridge CY3240, vdd = 5V is normal, but can not enumerate the slave address in vdd = 1.8v or 3.3v.thank !

:D
Lin
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TEST_20467S_120531A.rar
test project
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Re: cy8c20467s i2c voltage problem

Postby mask00 » Tue Jun 05, 2012 6:45 pm

Hi Sirs,
I've found the problem, H/W issue 20467s Vcc pin different 20434 . thank :lol:

Lin
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Re: cy8c20467s i2c voltage problem

Postby bobmarlowe » Tue Jun 05, 2012 10:36 pm

I hope, you did not blow up too many chips... :mrgreen:

Bob
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