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 Post subject: Function for periodically occurring bad bits in FC2279 -Idea
PostPosted: August 5th, 2024, 8:46 
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Joined: September 23rd, 2019, 2:55
Posts: 97
Location: Poland
Hello, have you had any experience with periodically occurring bad bits in a damaged plane? We have a new case based on the FC2279 controller, the problem is that the block has 1536 bad bits, cutting them out manually is time-consuming and it could be done with one mouse click after entering 2 parameters in VNR - the location of the first bad bit and the period of occurrence.

Below you will find an example in the screenshot I have attached: in our case, the first bad bit column is in position 13, the next ones are 109, 205, 301... etc. so the period is 96 bits.

I think it's nice that a function has been implemented in VNR that will do it for us automatically.
Is it possible to develop such a function in VNR?

ps. after removing these bad bits, I have ECC and I can see the data, so it is not a garbage block.

Best regards.


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FC2279_bad_bit_period.jpg
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 Post subject: Re: Function for periodically occurring bad bits in FC2279 -
PostPosted: August 6th, 2024, 12:22 
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Joined: August 26th, 2013, 3:50
Posts: 26
Location: Poland
That is impressive that you removed 1536 bad bits manually :shock:
I think if we meet more such cases, we'll do it.


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