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Re: [ts-7000] Re: Using TS-7500 SBC to collect and transfer camera data

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Subject: Re: [ts-7000] Re: Using TS-7500 SBC to collect and transfer camera data over TCP/IP
From: mike ingle <>
Date: Fri, 29 Jul 2011 11:12:52 -0700


our benchmarks give 30-40Mbytes/sec to host using the USB-parallel.  
On Jul 29, 2011, at 10:30 AM, walter marvin wrote:

 

Yes Jason, that would be the preferred method The 7500 also has an fpga. The amount of data probably dictates dma to main memory

I don't know about parallel to USB products, but I assume that the won't support these kind of data rates, the microprocessor, not the USB, being the bottleneck (All of these products are mp based under the cover)

25 MHZ data collection is no trivial matter


From: Jason Stahls <>
To: m("yahoogroups.com","ts-7000");">
Sent: Friday, July 29, 2011 1:20 PM
Subject: Re: [ts-7000] Re: Using TS-7500 SBC to collect and transfer camera data over TCP/IP

 
On 29/07/2011 11:56 AM, mtrav100 wrote:
> I had considered using the XUARTs. The documentation says there are up to 8 xuarts. Could I, essentially, use 1 UART per bit to achieve this transfer rate? or some division of the 8 bits among the UARTs to achieve the 25MHz speed?
>
> Another option i had considered would be to use the USB interface, as this has a much faster transfer rate (480 Mbs). Of course this would require some more work and extra hardware.
>
> Could i perhaps use a serial-to-usb interface to input the data as serial streams?

How about one of FTDI's USB->Parallel chips? Or, implement the bus
interface in a dedicated micro or FPGA? Heck for that fact, use one of
the TS products with a FPGA like a 7800, or 7300 and implement the bus
in their FPGA, they have direct RAM access so they can buffer the data
there for the application to read.

--
Jason Stahls






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