Re: Up to 60MHz 8bit logic analyzer Reply #15 – June 04, 2011, 06:48:24 pm hi, here is my coresponpance with the FTDI Field Applications Engineer from october 2009Q:Is it posible to accelerate the transfer speed to achive speeds closer to USB High Speed limit or 480Mbits/sA:If you use synchronous 8 bit FIFO mode, our current drivers will give up to 25 Mbytes/sec (200 MBits/sec). A upcoming driver release will support up to 40 Mbytes/sec (320 MBits/sec). Only one channel of the FT2232H can be used for this. Due to conversion overhead, the device cannot work at 480 MBits/second.sorry for bumping a 5 month old post. has anyone tested the maximum reliable data streem speed of the sych 8bit FIFO, a posible test equipment could be a simple 8 bit counter @ 60MHZ Last Edit: January 01, 1970, 01:00:00 am by Guest
Re: Re: Up to 60MHz 8bit logic analyzer Reply #16 – June 05, 2011, 10:20:23 am Thanks for the update and additional investigation. Interesting info. Last Edit: January 01, 1970, 01:00:00 am by Guest
Re: Up to 60MHz 8bit logic analyzer Reply #17 – May 04, 2018, 12:50:40 am 60 MHz times 8 Bit. That's a data rate of exactly 480 Mbit/sec. That's the theoretical limit of USB 2.0.I dont understand how some people report that they haven't lost a single byte while reading from the FTDI chip.However, have you heard of the FT600Q and the FT601Q? They both support 100MHz and 66MHz and the FT600 drives a 16bit wide FIFO while the latter drives a 32 bit wide FIFO. Both chips have USB 3.0 so the maximum data rate of 200MB/sec and 400MByte/sec respectively should not be a problem.How about a 32 bit 100MHz logic analyzer?However an FT600/FT601 eval boards currently costs around 50€/55€. That's rather expensive. The chip itself is actually quite cheap (less than 10€). Last Edit: January 01, 1970, 01:00:00 am by Guest
Re: Up to 60MHz 8bit logic analyzer Reply #18 – August 24, 2019, 10:11:18 pm Totally doable. I'm doing 108mhz at 4 bits for $3 though 64mbit. However a FPGA is slightly involved
Re: Up to 60MHz 8bit logic analyzer Reply #19 – August 29, 2019, 06:22:58 pm Quote from: arhi on November 26, 2010, 03:56:49 pmI got me a FT2232H Mini-Module some time ago as I wanted to test the high speed chip mostly because the spec show that this chip can do in hw what buspirate does in sw...Does this mean we can use the Dangerous Prototypes FT2232 breakout board with your program?
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