On 02/18/2012 10:25 PM, Ondra Zoubek wrote: > Hi, > On 18.2.2012 14:01, Bert Vermeulen wrote:
>> That reminds me -- Håvard, can you please revisit the issue we had regarding >> the zlib dependency? The problem was that the Asix firmware images are >> zipped, and the resulting zlib dependency in libsigrok is actually only >> there for for the Asix Sigma driver. We'd like to get rid of it, any chance >> of providing the images uncompressed? Does the Asix license permit this? > > It seems that zlib dependency is kind of painful. Let's say it is not > required to keep the images compressed, only xored with lsfr. Ok, thanks Ondrej! >> Also, another question: there is some reference to frequency counter >> functionality that the Sigma driver apparently has. What's the story there, >> can we support this? Because this is something I'd very much like to start >> doing in sigrok as well. > > It is special configuration (you already have it) and it is quite simple > to use it. Each frequency measuring unit (there are four of them in the > FPGA, more did not fit in it) has three 32-bit counters, first is time > (counter running at 50MHz), second is amount of time when input was high > (to compute duty cycle) and third is number of rising edges of the input > during the period. Start and stop is always aligned to input edge and > measuring time is kept to be around 100ms, all this is done by the > hardware, software only periodically reads these three registers and > does the calculation. I will eventually provide the documentation of the > register map. But I don't have it in document yet and I cannot do it > before March. That's fine, we're not quite ready for it yet. Thanks again! -- Bert Vermeulen [email protected] email/xmpp ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ sigrok-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sigrok-devel
