I have a bus pirate about to release with 16 million samples per channel LA
with a theoretical 100msps speed (but we'll be around 72msps). I'd be
interested in doing whatever to get updated support into the release as I'm
developing a uni level text book that would make use of sigrok.
The SUMP protocol is really insufficient for this, the sample counter only goes
to 0xFFFF so only a fraction of the sample space is available.
Please let me know if advance hardware would be helpful.
Cheers,
Ian, in Shenzhen, China
Sent from a mobile device, please excuse my brevity.
On Jun 4, 2018, 00:39, at 00:39, andrew goh via sigrok-devel
<sigrok-devel@lists.sourceforge.net> wrote:
>Thanks Aleksander!
>
>found some links:
>https://hydrabus.com/hydrabus-1-0-specifications/
>https://github.com/hydrabus/hydrabus
>https://github.com/hydrabus/hydrafw
>
>Hydrabus Board is actually based on stm32
>
>
>On 06/04/2018 12:14 AM, Aleksander Alekseev wrote:
>> Hello Andrew,
>>
>> Take a look on HydraBus project and corresponding firmware, HydraFW.
>> If I'm not mistaken it claims to be compatible with BusPirate
>> protocol. However last time I checked BusPirate support in Sigrok was
>
>> broken. Check the bug tracker.
>>
>> As a side note assembled HydraBus is overpriced, better order PCB on
>> JLCPCB and solder it manualy. Or try to run HydraFW on some
>> development board from eBay.
>>
>> Sorry I'm in an airport right now thus I can't give direct links.
>>
>> On Sun., 3 Jun. 2018, 17:32 andrew goh via sigrok-devel,
>> <sigrok-devel@lists.sourceforge.net
>> <mailto:sigrok-devel@lists.sourceforge.net>> wrote:
>>
>> hi all,
>>
>> i'm a newbie, novice to sigrok, just hope to get some pointers.
>> there are many stm32 based development boards (e.g. the discovery
>and
>> nucleo series from ST itself), and there are many others which
>can be
>> purchased on ebay etc for a rather low cost. e.g. if one search
>for
>> stm32f103 on ebay one could come across boards like blue pill or
>> maple
>> mini that goes as low as $2. these devices based on arm cortex-m3
>> runs
>> at 72mhz has 2 adc which could push an envelop of about 2msps
>> sampling
>> speeds and gpios in the 10s of mhz. then the higher end devices
>> e.g. m4
>> stm32f407 runs at 168mhz has adcs that run up to 7msps and gpio
>> sampling
>> speeds faster than the m3 series and the larger ve-zg devices has
>> decent
>> amount of ram e.g. 64k-192k sram. and stm32 f3 series has adc
>that
>> can
>> push 18msps quad interleaved. hence despite a only an on
>chip-full
>> speed usb 2.0, they can work as oscilloscopes or logic analyzers
>by
>> storing the adc samples to ram and later transmit that over usb.
>it
>> won't be those 100msps speeds but may be still useful for the
>> lower mhz
>> analysis
>>
>> if i want to turn these boards to interface with sigrok /
>> pulseview etc.
>> where do i start looking for info?
>> are there any 'standard' sigrok protocols for oscilloscopes and
>logic
>> analyzers where i can just build the firmware on the stm32 soc so
>> that
>> they'd 'just work' without changes at sigrok end?
>>
>> thanks in advance.
>>
>> andrew
>>
>>
>>
>>
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