Experimental Physics and
Industrial Control System

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<== Date ==>		<== Thread ==>

Subject:	AW: pco Camera USB and IEEE interface
From:	"Sintschuk, Michael via Tech-talk" <tech-talk at aps.anl.gov>
To:	Mark Rivers <rivers at cars.uchicago.edu>, "'Ivashkevych, Oksana'" <oksana at bnl.gov>
Cc:	'tech-talk' <tech-talk at aps.anl.gov>
Date:	Tue, 12 May 2020 08:21:01 +0000

Hi Oksana, hi Mark,

I tried the suggestion from Oksana, but with no luck. Still there is the same error.

In the file “Pco.cpp” (located in …/pcowinApp/src/) I found this code, from which the error is coming from (I think…):

/**

* Allocate image buffers and give them to the SDK. We allocate actual memory here,

* rather than using the NDArray memory because the SDK hangs onto the buffers, it only

* shows them to us when there is a frame ready. We must copy the frame out of the buffer

* into an NDArray for use by the rest of the system.

void Pco::allocateImageBuffers() throw(std::bad_alloc, PcoException)

{

// Now allocate the memory and tell the SDK

int bufferSize = this->xCamSize * this->yCamSize;

try

{

for(int i=0; i<Pco::numApiBuffers; i++)

{

if(this->buffers[i].buffer != NULL)

{

_aligned_free(this->buffers[i].buffer);

}

this->buffers[i].buffer = (unsigned short*)_aligned_malloc(bufferSize*sizeof(unsigned short), 0x10000);

this->buffers[i].bufferNumber = DllApi::bufferUnallocated;

this->buffers[i].eventHandle = NULL;

this->api->allocateBuffer(this->camera, &this->buffers[i].bufferNumber,

bufferSize * sizeof(short), &this->buffers[i].buffer,

&this->buffers[i].eventHandle);

this->buffers[i].ready = true;

}

catch(std::bad_alloc& e)

{

// Recover from memory allocation failure

{

TakeLock(&this->apiLock);

this->api->stopFrameCapture();

}

this->freeImageBuffers();

throw e;

}

catch(PcoException& e)

{

// Recover from PCO camera failure

{

TakeLock(&this->apiLock);

this->api->stopFrameCapture();

}

this->freeImageBuffers();

throw e;

}

Is this a hint maybe?

Michael

Von: Mark Rivers <rivers at cars.uchicago.edu>
Gesendet: Montag, 11. Mai 2020 20:33
An: 'Ivashkevych, Oksana' <oksana at bnl.gov>; Sintschuk, Michael <michael.sintschuk at bam.de>
Cc: 'Bradnick, Ben (Tessella,RAL,TEC)' <ben.bradnick at diamond.ac.uk>; 'tech-talk' <tech-talk at aps.anl.gov>
Betreff: RE: pco Camera USB and IEEE interface

dbLoadRecords("C:/epics/inst-7.0.3.1/areaDetector-R3-9/ADCore/db/NDStdArrays.template", "P=PCO4000:,R=image1:,PORT=Image1, 1,ADDR=0,TIMEOUT=1,NDARRAY_PORT=PCO1,TYPE=Int16,FTVL=SHORT,NELEMENTS=11059200")

I looked at the datasheet and it says that the pixel depth is 14 bit for this camera, which requires 2 bytes.
4008x2672x2=21,418,752 and you allocated 11,059,200.
Try changing to NELEMENTS=21418752

Michael’s dbLoadRecords is actually fine. Oksana has computed the size in bytes, but NELEMENTS is not bytes it is the number of elements in the waveform record, and in this case the FTVL is SHORT, so each element is 2 bytes.

Michael has actually allocated somewhat more elements than required, since 4008*2672 = 10709376, which is fewer than he allocated.

But more importantly Michael’s error is from the PCO driver, which knows nothing about the size of the waveform record being used by NDPluginStdArrays. This problem is in the driver, not the plugins.

Mark

From: Ivashkevych, Oksana <oksana at bnl.gov>
Sent: Monday, May 11, 2020 12:29 PM
To: Sintschuk, Michael <michael.sintschuk at bam.de>; Mark Rivers <rivers at cars.uchicago.edu>
Cc: Bradnick, Ben (Tessella,RAL,TEC) <ben.bradnick at diamond.ac.uk>; tech-talk <tech-talk at aps.anl.gov>
Subject: RE: pco Camera USB and IEEE interface

Hi Michael,

I did not see this error, but it might be related to the buffer you allocate for you image. It is possible the driver checks unsatisfactory size and reports the error.

You are using CA protocol Image.

dbLoadRecords("C:/epics/inst-7.0.3.1/areaDetector-R3-9/ADCore/db/NDStdArrays.template", "P=PCO4000:,R=image1:,PORT=Image1,ADDR=0,TIMEOUT=1,NDARRAY_PORT=PCO1,TYPE=Int16,FTVL=SHORT,NELEMENTS=11059200")

with X and Y :

epicsEnvSet("XSIZE", "4008")

epicsEnvSet("YSIZE", "2672")

I looked at the datasheet and it says that the pixel depth is 14 bit for this camera, which requires 2 bytes.

4008x2672x2=21,418,752 and you allocated 11,059,200.

Try changing to NELEMENTS=21418752

And see it this fixes the problem.

With best regards,

Oksana

From: Sintschuk, Michael <michael.sintschuk at bam.de>
Sent: Monday, May 11, 2020 8:50 AM
To: Mark Rivers <rivers at cars.uchicago.edu>
Cc: Bradnick, Ben (Tessella,RAL,TEC) <ben.bradnick at diamond.ac.uk>; Ivashkevych, Oksana <oksana at bnl.gov>; tech-talk <tech-talk at aps.anl.gov>
Subject: AW: pco Camera USB and IEEE interface

Hello again,

I‘ve been working some weeks now with the pco1600-camera connected via GigE. It works fine with the ADPcoWin-IOC. Great software, thanks to the epics-community!

However, I also try to set up a pco4000-camera connected via Firewire. The IOC starts and finds the camera but everytime I try to acquire an image there is the error:

Failed to arm, PCO error, allocateBuffer returned a00a3006

I guess, there are some settings that I’ve missed…

The camera connects fine with the original camware from pco.

I already tried to set the “QSIZE” , “CBUFFS”, “XSIZE” or “YSIZE” values to different parameters, but with no look. Maybe someone already had this issue?

This is my IOC-startup:

C:\epics\inst-7.0.3.1\areaDetector-R3-9\ADPcoWin\iocs\pcowinIOC\iocBoot\iocPco4000Win> C:\epics\inst-7.0.3.1\areaDete

ctor-R3-9\ADPcoWin\iocs\pcowinIOC\bin\windows-x64-static\pcowinApp.exe st.cmd

< envPaths

epicsEnvSet("IOC","iocPcoWin")

epicsEnvSet("TOP","C:/epics/inst-7.0.3.1/areaDetector-R3-9/ADPcoWin/iocs/pcowinIOC")

epicsEnvSet("ADPCOWIN","C:/epics/inst-7.0.3.1/areaDetector-R3-9/ADPcoWin/iocs/pcowinIOC/../..")

epicsEnvSet("SUPPORT","C:/epics/inst-7.0.3.1")

epicsEnvSet("ASYN","C:/epics/inst-7.0.3.1/asyn-R4-39")

epicsEnvSet("AREA_DETECTOR","C:/epics/inst-7.0.3.1/areaDetector-R3-9")

epicsEnvSet("ADSUPPORT","C:/epics/inst-7.0.3.1/areaDetector-R3-9/ADSupport")

epicsEnvSet("ADCORE","C:/epics/inst-7.0.3.1/areaDetector-R3-9/ADCore")

epicsEnvSet("AUTOSAVE","C:/epics/inst-7.0.3.1/autosave-R5-10")

epicsEnvSet("BUSY","C:/epics/inst-7.0.3.1/busy-R1-7-2")

epicsEnvSet("CALC","C:/epics/inst-7.0.3.1/calc-R3-7-3")

epicsEnvSet("SSCAN","C:/epics/inst-7.0.3.1/sscan-R2-11-3")

epicsEnvSet("EPICS_BASE","C:/epics/base-7.0.3.1")

errlogInit(20000)

dbLoadDatabase("C:/epics/inst-7.0.3.1/areaDetector-R3-9/ADPcoWin/iocs/pcowinIOC/dbd/pcowinApp.dbd")

pcowinApp_registerRecordDeviceDriver(pdbbase)

# Prefix for all records

epicsEnvSet("PREFIX", "PCO4000:")

# The port name for the detector

epicsEnvSet("PORT", "PCO1")

# Larger queue size may be need to stream to disk at full camera speed, up tp 2000

epicsEnvSet("QSIZE", "20")

# The maximim image width; used for row profiles in the NDPluginStats plugin

epicsEnvSet("XSIZE", "4008")

# The maximim image height; used for column profiles in the NDPluginStats plugin

epicsEnvSet("YSIZE", "2672")

# The maximum number of time series points in the NDPluginStats plugin

epicsEnvSet("NCHANS", "2048")

# The maximum number of frames buffered in the NDPluginCircularBuff plugin

epicsEnvSet("CBUFFS", "500")

# The search path for database files

epicsEnvSet("EPICS_DB_INCLUDE_PATH", "C:/epics/inst-7.0.3.1/areaDetector-R3-9/ADCore/db")

# Define NELEMENTS to be enough for a 2048x2048x3 (color) image

epicsEnvSet("NELEMENTS", "11059200")

# pcoConfig(const char* portName, int maxBuffers, size_t maxMemory)

pcoConfig("PCO1", 0, 0, 8)

# pcoApiConfig(const char* portName)

pcoApiConfig("PCO1")

# Asyn tracing

asynSetTraceIOMask(PCO1, 0, 2)

#asynSetTraceMask($(PORT), 0, 0xFF)

#asynSetTraceFile($(PORT), 0, "asynTrace.out")

#asynSetTraceInfoMask($(PORT), 0, 0xf)

dbLoadRecords("C:/epics/inst-7.0.3.1/areaDetector-R3-9/ADPcoWin/iocs/pcowinIOC/../../db/pco.template", "P=PCO4000:,R=cam

1:,PORT=PCO1,ADDR=0,TIMEOUT=1")