Electric magnetic resonance control system Performed By: Rawan Mnasra and Anan Kabaha Instructor: Mony Orbach Semesterial Winter Mid-semester presentation

Project motivation (1) :  The lab of electron magnetic resonance uses ESR method.  Ferro-magnetic material, with interactions between spin of electrons and magnetic field.  ESR method may be used to detect oxygen condensation, injuries, cancer…

Project motivation (2) :  In order to work with the oxygen detector, today we use big system,this system is not suitable for performing tests easily, we want to implement the functionality of this big system using FPGA.

Project motivation (3) :  The controller is sequencer that generates each clock one sequence.  The sequence contains rules for the ESR system.  The sequencer may contains loops.

Project goals:  Implement controller with an option to run nested loops (max 8) using VHDL.  Implement compiler for the sequencer.  Validation & Verification for the design.

The sequencer : Loop line by line over a sequence. Sequencer rate is 100MHZ -> take one decision each 10 [ns]. The sequence may contain loops. Maximum nested loops is 8. Each loop can have number of iterations of 20 bit.

Sequencer block diagram: 8K 8 bit RAM Address Sequencer out CLK Reset Load bit

“Good” cases : For i = 1 :10 “1” “2” “3” end For i = 1 : 10 “1” For j = 1 : 5 “2” “3” end “4” end

“Bad” cases : For i = 1 :10 “1” end For i = 1 : 10 For j = 1 : 5 For k = 1 : 3 For l = 1:20 For m = 1:2 For n = 1:30 For t = 1:6 “1” end “2” end “3” end …. end For i = 1 : 10 “1” For j = 1 : 5 “2” For k = 1 : 3 “3” For l = 1:20 “4” For m = 1:2 “5” For n = 1:30 “6” For t = 1:6 “7” For s = 1:100 ”8” End ….. End

Row representation in our implementation: DATAU-FLAGFLAG 8 bit 4 bit 20 bit FLAG REGULAR LINE 0X00000 END OF FOR0XFFFFE END OF FILE0XFFFFF START OF FORELSE U-FLAG 0 Number of Fors “s to end. (0-7) 0 Number of for ”s” after this for to open. (0-7)

Compiler:  We will use a compiler to convert “bad” cases to “good” cases.  This compiler will be simple GUI.  we will write it using matlab.

“Bad” cases : (1) For i = 1 :10 “1” end For i = 1 :5 “1” end For i = 1 :9 “1” end For i = 1 :4 “1” End “1”

“Bad” cases : (2) For i = 1 : 10 For j = 1 : 5 For k = 1 : 3 For l = 1:20 For m = 1:2 For n = 1:30 For t = 1:6 “1” end “2” end “3” end …. end For i = 1 : 10 (jump 7 + initialize 7 fors) “1” For j = 1 : 5 (jump 6 + initialize 6 fors) “1” For k = 1 : 3 (jump 5 + initialize 5 fors “1” For l = 1:20 “1” For m = 1:2 “1” For n = 1:30 (jump 2 …) “1” For t = 1:3 “1” end “2” end “3” end …. end

“Bad” cases : (3) For i = 1 : 10 “1” For j = 1 : 5 “2” For k = 1 : 3 “3” For l = 1:20 “4” For m = 1:2 “5” For n = 1:30 “6” For t = 1:6 “7” For s = 1:100 ”8” End ….. End For i = 1 : 10 “1” For j = 1 : 5 “2” For k = 1 : 3 “3” For l = 1:20 “4” For m = 1:2 “5” For n = 1:30 “6” For t = 1:6 “7” For s = 1:100 ”8” END (One end with number of For’s to close)

Compiler Algorithm: 1.Loop over the rows and convert bad cases #1 to good case #1. 2.Loop over the rows and convert bad cases #2 & #3 to good case #2 & #3. 3.Loop over the rows and generate the sequence.

Sequencer FSM START No Loop Loop 1 Loop 2 Loop 8 addr= 0 addr = addr + 1 If end_loop addr = loop_address else addr = addr + 1 If end_loop addr = loop_address else addr = addr + 1 If end_loop addr = loop_address else addr = addr + 1 In each state we check the bad cases also.

Time Line 13/1/2015 to 21/1/2015  start syntheses. Jan 22/1/2015 to 31/1/2015  Exams. Jan 1/2/2015 to 17/2/2015  Exams. Feb 18/2/2015 to 28/2/2015  Finish syntheses. Feb Define test bench and run it in the module. Mar Writing the module to the FPGA + validation. April Final presentation. May

Questions?

Thank you