Re: More on the display driver
Wont matter what side of the board you solder it/ plug it into¡ just put the connectors on the opposite side of the board and keep the board faced the same way¡ meaning the chip faces the BACK
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K9HZ
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#32535
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Re: More on the display driver
For those who have not populated board yet could there be an additional version that soldered to back side of board? Would make sense for 7" display Tim
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Tim
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#32534
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Re: T41-EP V11 PA Board JP1 Reference
Hi Rocco, the jumper is used only for setting the bias of the IRF510 transistors. It forces the bias voltage generator circuitry to ON.? So it is only used temporarily, in the preliminary tune-up of
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Greg KF5N
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#32533
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More on the display driver
I put together a mock-up of the display driver. The board will look like this (that is the real ISO 7241M on the board.the board is from a previous attempt): I envision it plugging into the display
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K9HZ
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#32532
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Re: Tiny Ten Transceiver
Many thanks for the comments , here and separately.? That is most helpful for me. Additional note:? I have posted stuff about the RF design, including the three plug-in networks.? It is about
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Bob Larkin
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#32531
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Re: T41 receive attenuator working?
When I change the attenuator, I can see it clearly across the entire spectrum display. Everything just moves down. - Jerry, KF6VB
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jerry-KF6VB
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#32530
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Re: T41 receive attenuator working?
Thanks Oliver. I¡¯ll try this dave
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D Solt
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#32529
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Re: T41-EP V11 PA Board JP1 Reference
Hi Greg, I have a question regarding the JP1 pads between U2 and C24 on the V11 PA board. I have a zero ohm resister there now but not sure why. According to the schematic it looks like it should be a
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Rocco F. Barbaro
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#32528
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Re: T41 receive attenuator working?
Here's one way to test it. Load the latest code onto the Teensy. It has an option under the RF set menu to change the input attenuation. Then, put a 10 MHz (or whatever) signal into the RF_in SMA
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Oliver KI3P
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#32527
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Re: MKV VIDOR 4000 shows up
" not much support from the Arduino crowd." I'm sorry to hear that, but not surprised. I looked at it two or three years ago when I wanted eight fairly high speed counters connected to a
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John Schindler
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#32526
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Re: [AmateurRadioBuilders] New Display Driver
You could use pointers because the indices are no different that an index except increment by one moves the byte pointer by sizeof(measure) bytes. Indeed the expression: ??????? int
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jjpurdum
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#32525
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Re: MKV VIDOR 4000 shows up
Interesting project.? I have a different FPGA board waiting for my attention. I recently spent about a month working with an STM32H747XI development board (
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Terrance Robertson, KN6ZDE
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#32524
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Re: MKV VIDOR 4000 shows up
*** HDMI? Now that *is* interesting. Is it connected to the FPGA? Is there IP available to drive it? - Jerry, KF6VB
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jerry-KF6VB
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#32523
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Re: MKV VIDOR 4000 shows up
This board has 1) an arduino processor and 2) a Cyclone 10 FPGA on the same board. It supports a variety of I/o and HDMI display interface. It sounds like a lot of cool stuff. Now, I would never use
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K9HZ
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#32522
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Re: [AmateurRadioBuilders] New Display Driver
Here's a test program I adapted for the power/SWR sensor in
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jerry-KF6VB
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#32521
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Re: MKV VIDOR 4000 shows up
Just curious - what does this particular board have going for it? Looks like not much support from the Arduino crowd. - Jerry, KF6VB
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jerry-KF6VB
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#32520
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Re: [AmateurRadioBuilders] New Display Driver
I can't remember for certain, but I think I did try using a ring buffer when we first started the project, but I couldn't get it to work correctly. Perhaps I don't understand how we get the rollover
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jjpurdum
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#32519
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MKV VIDOR 4000 shows up
This board is actually a lot smaller than it looks¡ A little bigger than a Nano but not much! Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal
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K9HZ
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#32518
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Re: [AmateurRadioBuilders] New Display Driver
*** Sure there is. Rotating buffers. Something interesting happens, the interrupt loads that fact into the rotating buffer. Does NOTHING but that. Main program checks the buffer, sees that it's not
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jerry-KF6VB
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#32517
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Re: [AmateurRadioBuilders] New Display Driver
Look for optimizations in the software.
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Terrance Robertson, KN6ZDE
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#32516
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