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Topic: Buspirate v3 VS v4 (Read 63072 times) previous topic - next topic

Buspirate v3 VS v4

Is there any features in the v4 design that'll be present that wasn't in the v3? I've been told by someone to not buy the v3 since the v4 was coming out soon-ish... But if the v3 design has all the same features(it seems it can be updated to the v4 bootloader&firmware from what I read), then it wouldn't be a problem buying a v3 now, would it?

Thanks for any answers.

Re: Buspirate v3 VS v4

Reply #1
Hi DeathWolf - The v4 hardware design isn't finalized yet, and is still missing some key pieces like a bootloader. Once we actually have the hardware down, it will still lag behind the v3 capabilities wise until we work out a ton of new bugs.

V4 has a few new hardware features that can't be added to the v3 by software: on-board pullup voltage selection, native USB for faster binary mode stuff (when someone supports it), an EEPROM for some storage, two extra pins, and 4x the flash memory.

We'll continue to support the v3, the current firmware source supports both v3 and v4 so it's not a problem.

I wouldn't expect the v4 until next year, and then it will probably be another year before the firmware is running even partly as well as the v3. v3 will be the recommended hardware for a long time still.
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Re: Buspirate v3 VS v4

Reply #2
I am waiting for the V4 as well.

Re: Buspirate v3 VS v4

Reply #3
That will be a nice piece of hardware when all of it's power is released.
Let's hope the software guys support the board in their applications

Re: Buspirate v3 VS v4

Reply #4
Is there a need for fast binary mode? Can't the USB-CDC stack do something like 10Mbps serial emulation?

Re: Buspirate v3 VS v4

Reply #5
The CDC stack can do around 1Mbps realistically, and it is double-buffered so it can probably sustain that. The binary mode will be able to take advantage of that too.
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Re: Buspirate v3 VS v4

Reply #6
The 4 sounds awesome. I own the 3.5b but I really dont mind waiting to purchase 4 also. My plan is to wait till the v4 is all worked out and working as well as the v3; as soon as its finished I am getting a v4 as well. Then I will simply upload the STK500 AVR programmer firmware onto the v3.5 and use it to program AVRs (Dont want that beautiful piece of hardware going to waste :) ) i mean to me just the on-board select-able pull-ups & of course alot more program space (which means more protocols and features from the community!) is worth purchasing the new version. Everything about it sounds awesome.

Ever since I got my Bus Pirate it as really inspired me to step my game up. All my best projects take alot of inspiration form the bus pirate (such as serial commands and syntax protocols( no more 1 char to do a function and nothing else; its awesome to send true commands to the AVR to send custom commands every time instead of pre-defined ones.), also something big on my own projects is now always starting in a 'safemode' which disables any functions that could possibly destroy the target, stuff like that.)

Anyone waiting for v4 is just silly! I mean the price is extremely reasonable. If the v4 was coming out within a month or something, then ok wait. but a year!? Its not like you wont find a use for the v3.

Re: Buspirate v3 VS v4

Reply #7
Thanks for the kind words :)
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Re: Buspirate v3 VS v4

Reply #8
Hi
1st post here, thanks for all the great info.
Was wondering if version 4 was stable? I got a gift certificate to seeed and its time for a bus pirate.
thanks
tim

Re: Buspirate v3 VS v4

Reply #9
V4 is stable-ish. Still plenty of features that don't work well, but we are fixing then really fast. I still think v3 is better, but in a year v4 (sooner with Brent's new features) will have stuff we can't do on v3.
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Re: Buspirate v3 VS v4

Reply #10
thanks

Re: Buspirate v3 VS v4

Reply #11
on V4 the jtag part should the current how-to`s apply or does it need a different approach ?

Re: Buspirate v3 VS v4

Reply #12
The JTAG terminal mode is included I believe, but OpenOCD jtag is not yet working because it uses some serial port hardware that we have not transferred to USB yet.
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Re: Buspirate v3 VS v4

Reply #13
Hello all!!

This is my 1st post and i am a complete noob to this wonderful world! I would like to purchase v4 of the BP but wanted to know if I should still wait? Thank you all in advance!!

Re: Buspirate v3 VS v4

Reply #14
I would wait. There's still lots of little things about v4 that can make you miserable.
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