Problem in programming CY8CMBR3110

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such_285811
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 I am beginner in PSOC. I am trying to program CY8CMBR3110 using Miniprog-3 by I2C protocol. In EZ-Click 2.0, when i try to select I2C target on 5v, It can't identify it. but if i select 2.5v or 1.8v, It identify device. So i do't understand what is problem. I attach circuit diagram.

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bharadhwajas_91
Employee
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 Hi Sujit,

   

What is the frequency you are using?Can you post the screenshot?

   

 

   

Thanks

   

Bharadhwaj

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such_285811
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 Bharadhwaj,

   

 

   

I am selecting 100kHz. I attach image file for both case.

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bharadhwajas_91
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Hi Sujit,

   

 

   

I think the problem is with pull-up resistance values.MiniProg3 already has internal pull-up resistances, so can you unmount reisitors on board and try?

   

 

   

Thanks

   

Bharadhwaj

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such_285811
Level 1
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 Bharadhwaj,

   

I unmount it but it still not working on 5v.

   

Thank You,

   

Sujit

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bharadhwajas_91
Employee
Employee
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 Hi Sujit,

   

*Try unmounting regulator and see result.

   

* See I2C waveforms with 5V .

   

* Try with BCP 

   

1)List devicewith BCP

   

2)Send R to device address directly with BCP.

   

 

   

Bharadhwaj

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such_285811
Level 1
Level 1

Hello Bharadhwaj,

   

 

   

-> I varify after mount MBR3 and its required capacitors and resistors, But problem continue.

   

-> I get some pulses at I2c pins when connect Mniprog-3 to MBR3.

   

-> BCP can't show my device on 5v. when i select 2.5v it showing device. 

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