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| Hantek HDG2002B AWG: 5Mhz or 100MHz? Let's see! |
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| idpromnut:
Something like this might be handy to "not-brick" the HDG2002 initially (at least for me): http://www.wayengineer.com/index.php?main_page=product_info&products_id=3066#.VExWQucSVUV |
| alex.forencich:
Internal voltages that cross the isolation are 5, 1.8, and 3.3. On the footprint marked P11, the voltages are +3V3, GND, +1V8, GND, +5, GND. FPGA JTAG pinout is not Xilinx standard. From the marked end of the connector, pinout is +3V3, TCK, TDI, TDO, TMS, GND. I got it to show up in Impact correctly as an xc6slx16. |
| alex.forencich:
--- Quote from: idpromnut on October 26, 2014, 02:05:38 am ---Something like this might be handy to "not-brick" the HDG2002 initially (at least for me): http://www.wayengineer.com/index.php?main_page=product_info&products_id=3066#.VExWQucSVUV --- End quote --- That looks like an excellent solution. It even has the same Ethernet chip. Only $100 including the screen? Not bad at all. I would be more interested in the software package that comes with it. A crappy reference design is better than no reference design at all. I can do all of my debugging by disconnecting the FPGA from the controller. That isolation is very handy! Just pop off two resistor arrays and we're good to go. Maybe we should go ahead and fire up another thread. And perhaps consider setting up a github repo. |
| idpromnut:
Where should that new thread go, in testgear or projects? |
| alex.forencich:
Ha, I figured out what the R2R DAC is for. It drives the SYNC out. So it would be possible to turn that into a 3rd output. However, it would not be as capable as the two main outputs. |
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