10/16/24

[bparpillon]

• [x] Check get memory timing - linearity i=1, 10 and 100
• [x] Run ~r13 on 1000 samples and extract timing t1
• [x] Update the FW from Cristian
• [x] Update the static array to turn ON the x10 speedup
• [x] Read back 240 words of 32 bits
• [x] Check functionality with ~r12 : program pixel0 and pixel255 and look at ARRAY 0 and make sure there are no dead pixels between each frames
• [x] run ~r13 with 100 samples and extract timing t2 and compare with t1
• [ ] Ping Anthony to update the shapes
• [ ] Implement any additional thing to speedup testing such as a sped up ~r1 (read back without start register)
• [ ] Launch an overnight run with single pixel programming

[bparpillon]

get memory timing: n=1: readtime=0.0013117790222167969 to readtime=0.04401755332946777 n=10: readtime=0.09757637977600098 n=100 readtime=0.9081718921661377 n=1000: readtime=9.683612823486328

On ~r13 - I extracted execute time and read back time over 24 words: xec_time=-0.04436159133911133 | 0/1000 [00:00<?, ?it/s] readback_time=-0.5260124206542969 exec_time=-0.001994609832763672 | 1/1000 [00:00<09:30, 1.75it/s] readback_time=-0.5680837631225586 exec_time=-0.0023965835571289062 | 2/1000 [00:01<09:30, 1.75it/s] readback_time=-0.5200669765472412 exec_time=-0.04391741752624512 | 3/1000 [00:01<09:08, 1.82it/s] readback_time=-0.5246784687042236 exec_time=-0.045757293701171875 | 4/1000 [00:02<09:15, 1.79it/s] readback_time=-0.4747731685638428 exec_time=-0.044114112854003906 | 5/1000 [00:02<09:02, 1.84it/s] readback_time=-0.48061299324035645

Execute command is insignificant which seems to indicate the new FW update will have minimum effect

[bparpillon]

BEFORE FW UPDATE: ~r13 ran with 1000 samples: first run finished in 8:26 Second run finished in 10:45 (I was generating the bitstream with vivado in //[?])

first run finished in 8:13

AFTER FW UPDATE ~r13 ran with 100 samples: first run in 10:13 Second run in 10:28 third run 9:03 ![Uploading Screenshot 2024-10-16 at 8.29.05 PM.png…]()

[bparpillon]

The FW update doesn't seem to work: the first and last pixels were programmed , the corresponding bits are bolded- 240 bits are read out:

240 **111**000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000100000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000100000000000000000100000000000000000100000000000000000000000000000000000000000100000000100000000000000000000000000000000000000000100000000000000100100000000000000000000000000000000100100000000000000000000000000000000000000000000000100000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000100000000000000000000000**111**000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100100000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100100000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100100000000000000000000000000000000100100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100100000000000000000000000000000000100100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000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The spurious bits seems to be repeating but they are not periodic. To debug we need to check:

1. Are we missing something in the routine to turn on the read back correctly
2. Is the FW send a reset between each trigger pulse?
3. Are the pulse out of alignment?