Electronics > Projects, Designs, and Technical Stuff
Easiest way to collect some data @50MB/s and dump to computer
Harvs:
I had a look at the board I have under the microscope and those pins aren't hooked up. Because I have the QFN package it's probably not worth the trouble for me to go any further.
Still be interesting to see how c64 goes.
c64:
--- Quote from: Harvs on June 15, 2020, 09:48:24 pm ---Still be interesting to see how c64 goes.
--- End quote ---
I think I buy both ftdi and fx2 and try them both, starting with ftdi. If I get clone ftdi chip, will I be screwed by the drivers? Or was it only problems with UART driver?
c64:
--- Quote from: Harvs on June 15, 2020, 11:25:55 am ---I've tried fx2pipe quickly this evening with a "saleae" clone board.
--- End quote ---
I actually have one of these. Never tried it though. If I can find it, I look at my pins
SiliconWizard:
--- Quote from: c64 on June 16, 2020, 09:12:08 am ---
--- Quote from: Harvs on June 15, 2020, 09:48:24 pm ---Still be interesting to see how c64 goes.
--- End quote ---
I think I buy both ftdi and fx2 and try them both, starting with ftdi. If I get clone ftdi chip, will I be screwed by the drivers? Or was it only problems with UART driver?
--- End quote ---
If you use an FTDI chip, you're not going to use it in UART mode (as we said earlier, it would yield a very low throughput, something you didn't want.)
(The drivers have little to do with the actual mode: you can use either the VCP - serial emulation - or FTD2XX drivers when using the FTDI chip in parallel mode, although if you are going to use a synchronous parallel mode, you can only use FTD2XX drivers AFAIK.)
That driver question aside, as long as you use an FT232H or FT2232H chip, you shouldn't worry about clones - those chips were never cloned AFAIK. Only the cheap, specialized USB to UART converter ICs with no parallel mode were cloned AFAIK (like the FT232R and derivatives.)
jkostb:
I strongly recommend the FT600 or FT601. I have build a board consisting of spartan 7 FPGA (Xilinx) and the FT601. The FT601 was used to transfer data from AD converters to the PC. Actually the PCB also contained an USB hub from TI. We easily reached data rates > 250 Mbytes/s. So the 50 Mbytes/s, which you are referring to, is peanuts with the FT600/601. You only need to pay special attention to the board layout of the USB 3 superspeed TX/RX pairs, because it is controlled impedance (90 Ohm+/10%). Most PCB manufacturers can advise you about track width/gap if you supply the PCB stackup.
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