I2C 7 bits or 8 bits adress problem

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modelvincent
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I2C 7 bits or 8 bits adress problem

Post by modelvincent » Tue Sep 30, 2014 10:10 am

Hello, I'm working with the last release of picoscope (6.9.16.17) with a 3204A and I have an issue in I2C decoding.

The data is correctly decoded but the adress is only decoded in 7 bits mode, but in my case I need an 8 bits decoding.

On my previous release I could select between One mode or the other but in this new release, I can found this option?

Where is this option?

Thanks in advance,

Vincent

Hitesh
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Re: I2C 7 bits or 8 bits adress problem

Post by Hitesh » Thu Oct 02, 2014 10:29 am

Hi Vincent,

The option to select the address as 7-bit or 8-bit has been added to PicoScope 6.10.3 Beta:
I2C_Advanced_Decoder_Settings.PNG
I2C Advanced Decoder Settings dialog
I2C_Advanced_Decoder_Settings.PNG (8.45 KiB) Viewed 1051 times
However, there is a known bug concerning the recognition of 8-bit addresses which is currently being investigated by our Development Team.

It is recommended to use 7-bit addressing which works well and recalculate your slave address based on the omission of the read/write bit.

Hope this helps.
Hitesh

Technical Support Engineer

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