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DRAM from FPGA badly written at application start

hi! I have a strange behaviour with my LabviewFPGA code joined in ZIp file (LV2019)

 

At program start, is to be automatically configured a DRAM signal with a 100k points at init

 

the problem: if I launch the main RT (RT test intersectif.vi in the zip file) once after compactrio power supply ON, the DRAM is not configured correctly, and I get noise (below) 

Sans titre 1.png

 

if I try again to run the VI, the signal becomes correct.

 

Sans titre 2 .png

 

everytime I get 1st run time NOK and the 2nd one OK, whetever the time I wait between power ON and 1st start

I absolutely need this signal DRAM to be correctly uploaded at start.

 

Is there something wrong in my code?

 

thanks in advance for the help

Pierre FCentum TNS, Grenoble
Certified LabVIEW Associated Developer
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DRAM handshaking is not connected fully


Certified LabVIEW Architect, Certified Professional Instructor
ALE Consultants

Introduction to LabVIEW FPGA for RF, Radar, and Electronic Warfare Applications
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