Re: [sigrok-devel] adding a new device: stm32 family boards

[andrew g. <goh...@ya...>]

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, 
> <sig...@li... 
> <mailto:sig...@li...>> 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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