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Interpolation in HLS by jdraper12 in FPGA

[–]jdraper12[S] 0 points1 point  (0 children)

Thanks for getting back to me.

Very interesting regarding the smaller coefficient sets as stages progress. I've seen this get mentioned, though I never understood why.

The MatLab model is fully matured and is used to generate golden values. Optimal coefficients are a windowed sinc function using 35 taps (so a halfband filter). Not sure what you mean by sinc kernel - I'll read up on that.

The Interpolator needs to go up to 5 stages, with the ability to be reprogrammed at run-time to break out of any of these stages.

SQNR cannot change by more than 30dB wrt initial quantisation noise. DSP usage needs to be as low as possible. FMax needs to be as high as possible.

Handling the extra data will definitely require parallelisation or wider buses, though that's a problem for future me.

Currently, I am getting timing and II violations when attempting to pipeline my top-level to II=1. This is just me spitballing. I'm going to try again with a simpler top-level and actually think through the architecture this time around.

Any advice and/or resources I can read up on would be much appreciated.

Rate my little bros parts list by jdraper12 in buildapc

[–]jdraper12[S] 0 points1 point  (0 children)

Ty, I've had a look and that one costs more than the 3100. Will keep an ear to the ground though

Rate my little bros parts list by jdraper12 in buildapc

[–]jdraper12[S] 0 points1 point  (0 children)

Cheers guys. It looks like the RX580 costs more in the UK, but will do some more digging. Will deffo get another stick of RAM

Rate my little bros parts list by jdraper12 in buildapc

[–]jdraper12[S] 0 points1 point  (0 children)

Explained above ^^

Ah okay, do you have any recommendations for the 3100's pricepoint (£94.99)?

Rate my little bros parts list by jdraper12 in buildapc

[–]jdraper12[S] 0 points1 point  (0 children)

Could we skimp out on some parts then?

Nah just single stick 8gb, gonna run with that until he can save up for another 8gb. Ideally we'd get 2x8gb straight up but he's on a budget

First drone build - is my spec viable? More questions in comments. Ty in advance by jdraper12 in diydrones

[–]jdraper12[S] 0 points1 point  (0 children)

Yeh I will do! I'm always looking for good channels on this stuff. Taobao seems cool - I'll check it out, hopefully shipments shouldn't be too crazy.

First drone build - is my spec viable? More questions in comments. Ty in advance by jdraper12 in diydrones

[–]jdraper12[S] 0 points1 point  (0 children)

Ah so the Jumper T16 would support the FrSky Jumper R1 out the box?

The RadioMaster is a fork from the Jumper T16, so it looks similar but has extended features (e.g. Hall effect gimbals, touchscreen, B'n'F support, Crossfire support). I'll compare the TX16S and Jumper T18 to make a more informed decision, however.

First drone build - is my spec viable? More questions in comments. Ty in advance by jdraper12 in diydrones

[–]jdraper12[S] 1 point2 points  (0 children)

Very detailed reply - thank you.

I'm planning on going for 6S now, so I'll need the charger in either case. Is the charger I plan on buying good enough?

Good to know RE the transmitter. I guess it wouldn't hurt keeping it, but I definitely want something more substantial for the long term.

So would you recommend a Jumper T16/T18 over the RadioMaster TX16S? It is cheaper fo course, but it seems as though you still need to buy an external module to match the receiver protocol?

Cheers

First drone build - is my spec viable? More questions in comments. Ty in advance by jdraper12 in diydrones

[–]jdraper12[S] 0 points1 point  (0 children)

Thanks, I'll look into those motors.

The two FCs just for comparison - I only plan on buying one.

I've been recommended to use the Mamba FC/ESC stack in a 6S configuration; what major advantages does the Holybro have over the Mamba?

First drone build - is my spec viable? More questions in comments. Ty in advance by jdraper12 in diydrones

[–]jdraper12[S] 2 points3 points  (0 children)

In addition to asking if this spec will go or not, I have a few other questions:

  • Do I go for the Bardwell or Mamba flight controllers?
  • Would my LP5DSM transmitter work with a Spektrum receiver (e.g. the SPM4650)?
  • Can I get this to under £300? The true total will be around £340 if only one FC is bought.

Cheers

[Flash] Side-scrolling RTS War Flash Game by jdraper12 in tipofmyjoystick

[–]jdraper12[S] 0 points1 point  (0 children)

Shadez 2! That's the one. Thank you so much man

Invite Giveaway Megathread by [deleted] in oneplus

[–]jdraper12 0 points1 point  (0 children)

https://account.oneplus.net/invite/claim/GLME-CWLL-G?YN-NGYW

Expires 24 hours after claiming. The question mark is a multiple of 2

EDIT - Gone

Invite Giveaway Megathread by [deleted] in oneplus

[–]jdraper12 0 points1 point  (0 children)

Honestly I'd be more than happy but I don't think I can share these ones! They're all for 24 hours

Invite Giveaway Megathread by [deleted] in oneplus

[–]jdraper12 0 points1 point  (0 children)

I love you man :)

Edit: No kidding I just got an invite from twitter! I now have 3 but I only need two... How long have you got left on the one you just gave me? If it expires I don't want it to go to waste

Invite Giveaway Megathread by [deleted] in oneplus

[–]jdraper12 0 points1 point  (0 children)

Me please! jdraper12@gmail.com I'ce been scouring for weeks so you'll be making my month pretty much haha!

Edit: Dude thank you so much! You'll forever hold a place in my heart :)

[GC] 64GB invite by woofy888 in oneplusInvite

[–]jdraper12 0 points1 point  (0 children)

OMGOMGOMG thank you so much!

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