Experimental Physics and
Industrial Control System

 

Thank you all for your support.

 

I will change script that read A,B,C,D channel individual way, it works fine.

 

 adc_cha = lcaGet(tmp1, WLength);

 adc_chb = lcaGet(tmp2, WLength);

 adc_chc = lcaGet(tmp3, WLength);

 adc_chd = lcaGet(tmp4, WLength);

 

% align order     

 allADC=[adc_cha adc_chb adc_chc adc_chd];

 

Thanks,

Kiman

 

 

 

Yong,

 

Increased timeout value.

lcaSetTimeout(1.0);

lcaSetRetryCount(200);

 

 

total size is 180*4*1M*8byte(double) = 5.76 Gbyte

 

Reading waveforms...

Error using lcaGet

Out of memory. Type HELP MEMORY for your options.

 

Error in adcLongWfmRead_1m (line 276)

        allADC = lcaGet([tmp1; tmp2; tmp3; tmp4], WLength);

 

 

 

@matlab:~/epics/matlab/bpm/adc$ free -g

             total       used       free     shared    buffers     cached

Mem:           126         50         75          0          0         45

 

 

 

 

Kiman:

 

Yes, the function is lcaSetTimeout, i.e. lcaSetTimeout(1.0) will set the timeout to 1 second. The default timeout is 0.1 second.

Other useful functions for your case:  lcaGetRetryCount, lcaSetRetryCount

 

BTW, you do not need to set EPICS_CA_MAX_ARRAY_BYTES to 5G.  A little bit greater than 1M*sizeof(data-type-of-ADC-raw-data) should be enough.

 

Yong