Installation guide

PicoScope 4000 Series (A API) Programmer's Guide 11

3.6.2.2

Rapid block mode example 1: no downsampling

#define MAX_SAMPLES 1000

Set up the device up as usual.

Open the device

Channels

Trigger

Number of memory segments (this should be equal or more than the number of

captures required)

// set the number of waveforms to 100

ps4000aSetNoOfCaptures (handle, 100);

pParameter = false;

ps4000aRunBlock

(

handle,

0, // noOfPreTriggerSamples,

10000, // noOfPostTriggerSamples,

1, // timebase to be used,

&timeIndisposedMs,

1, // segmentIndex

lpReady,

&pParameter

);

Comment: these variables have been set as an example and can be any valid value.

pParameter will be set true by your callback function lpReady.

while (!pParameter) Sleep (0);

for (int i = 0; i < 10; i++)

{

for (int c = PS4000A_CHANNEL_A; c <= PS4000A_CHANNEL_H; c++)

{

ps4000aSetDataBuffer

(

handle,

&buffer[c][i],

MAX_SAMPLES,

PS4000A_RATIO_MODE_NONE

);

}

Comments: buffer has been created as a two-dimensional array of pointers to

int16_t types, which will contain 1000 samples as defined by MAX_SAMPLES. There

are only 10 buffers set, but it is possible to set up to the number of captures you have

requested.