Posts by ArjunLucid

Hi,

I have been using VA for long - currently using 3.2.1. But I recently encountered a strange issue while opening. This file was stored in Microsoft one drive (in case if this gives any clue) may be 2-3 years back. Now when i try to open the file, I am getting the below error.

All the files stored in that particular folder is having this issue. I tried opening the file in another PC, in another VA versions like 3.2.0, 3.3 etc but all are throwing the same error.

Can anyone help me on this? All the backup files are showing this error and it is really a serious issue .

pasted-from-clipboard.png

Dear Simon,

The issue doesn't happen with standard acquisition applet. It happens only with this applet and as I said earlier, it doesn't happen always. It is random in nature.

I am doubting the way ImageBuffer operator is handled in the background by VA. Because in the sample image I shared, there are two images overlapped (may be previous and current - I am not sure) in alternative columns.

Hope will get a response from VA technical team to clarify this.

Thanks,

Arjun

Dear Simon,

We are not using 2 nos of Signal Gate operators for tap sorting. In our application, the frame triggers can have jitters such a way that the 2 nd trigger might come when the Signal Gate operator is busy with the 1 st trigger. So the triggers are split into odd and even, sent to separate Signal Gate and separate Images Buffers and later sequenced using Insert Image operator.

Thanks,

Arjun

Dear SISO & Members,

We have built an applet to capture image from 8K monochrome line scan camera which is running in Full mode 8K 8 tap based on Encoder (50KHz) and Image trigger. Attaching the VA file for your reference.

Foil_8K_V1.3_Marathon.va

Most of the captured images are ok. But randomly the pixels are getting jumbled as shown below:

pasted-from-clipboard.png

We are doubting that the issue is with the mage Buffers. Can anyone help us out what is wrong with the Image acquisiton part in the attached VA?

Thanks in advance,

Arjun

Hello Support,

Could you please let us know the compatibility of the below 2 cameras with the Marathon AF2/VF2 frame grabber?

1. Chromasens allPIXA EVO 10K camera
2. Teledyne Dalsa Linea ML 8k color camera --> ML-FC-08K10T-00-R

Thanks in advance.

Arjun

Thanks for your suggestions Mr, Johannes Trein.

Hello,

I would like to know the best CPU spec to run VA3 (along with Vivado in background) and get the designs compiled faster.

1. Will it make any difference if we use intel or amd processor?

2. Minimum number of CPU cores required?

3. Minimum processor speed?

Thanks,

Arjun

Thanks a lot. Will check and get back.

Dear CarmenZ,

Thanks for your suggestion. Just a quick question, is that a free edition or paid one?

Thanks,

Arjun

Dear CarmenZ,

Thanks for the response. We are using Visual Applets 3.1.1 and Xilinx 14.7.

Thanks,

Arjun

Thanks Björn. We could get this logic working after going through your suggestions.

Thanks,

Arjun

Dear Support,

We made an applet with ImageBufferMultiROI operator for line scan camera. For example, Image size to be captured is 1000 x 1000 pixels. Through multi ROI, we would like to get just 2 ROIs, 1st 100 lines (y offset 0) and from center 100 lines (y offset 500). As per functionality of ImageBufferMultiROI in freerun mode, it should send the 1st ROI out as soon as it receives the 100th line and the 2nd ROI should be sent as soon as it receives the 600th line. But what we are noticing is, the 2 ROI as are sent out like burst after the buffer receives 1000th line only. Is this correct? Could some one help?

Thanks ,

Arjun

Dear Support,

We have created an Applet for capturing image from a 8k camera (Teledyne e2v Eliixa+ 8k monochrome) in full mode 8bitx8 tap. Image capturing at full resolution at 40KHz line rate is OK. But we also need a down-sampled image (width/2 and height/4) from another DMA. We used "Sample down" operator but it resulted in build error and some times it ran up to 12 hrs!. I also tried sampling down with other operators but that too not getting built/synthesized. Could you please guide me if there is any mistake in the design? Attaching the VA file for your reference. Refer "SampleDown" hierarchical block.

Thanks,

Arjun

IRT_8K_V1.21.va

Dear Björn,

Thanks for the sample VA. We tried the sample program and its working on certain condition:

If pulse frequency is 4 Hz, the tick frequency for the "Delay module set in Multiple pulse mode" has to be multiples of 4 Hz. Am I right? If not, it is pulses are getting missed. Attaching the modified VA file for VD4 card.

Thanks,

Arjun

DelayPulseTrain_v1.04_VD4_SingleDma.va

Dear All,

I need a sample VA program to delay a train of pulses using "Signal Delay" operator in "Multiple pulse" mode. I tried it, but it is not working as expected. So it would be good if some one can share a sample VA that works in following condition:

Input pulse frequency --> 4 Hz

Pulse delay - 10 seconds or in encoder pulses

Board preferred --> me4 VD4 or VQ4

Sample program attached for VQ4 --> Check in Process0/Trigger_Manipulator_Color/Delay

DelayPulseTrain_V1.02.va

Thanks,

Arjun

Lucid Imaging Private Limited