Pico 4K - streaming mode overflow flag

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meereck
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Pico 4K - streaming mode overflow flag

Post by meereck »

Hello,
is there any flag in the API of dropped data when PC or USB is not fast enough to transfer streaming samples from the scope?
It seems there is no flag for ps4000GetStreamingLatestValues or ps4000StreamingReady callback.

Best regards

Martyn
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Re: Pico 4K - streaming mode overflow flag

Post by Martyn »

You should find the following value in the data stream if the PC and USB can't keep up with streaming

#define PS4000A_LOST_DATA -32768
Martyn
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meereck
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Re: Pico 4K - streaming mode overflow flag

Post by meereck »

Thanks.
When more channels are used at a time, will this value be present in each channel buffer on the same sample index?

Martyn
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Re: Pico 4K - streaming mode overflow flag

Post by Martyn »

From memory this value will be placed in for all samples that are missing. The device will tell the driver how many this will be, and the driver adds them in.
Martyn
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Denkun
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Re: Pico 4K - streaming mode overflow flag

Post by Denkun »

Hello everybody,

does anybody know how it works with the ps4000a scopes? I can find any information on dropped data detection neither in ps4000a programmer's guide nor in this forum...
Tanks in advance!

Best regards

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