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Re: NanoVNA application by OneOfEleven
#applications
I like the 4kHz bandwidth in your FW DiSlord. It scans faster :)
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Re: NanoVNA application by OneOfEleven
#applications
v0.1.63 should be fully working now with .bin, .dfu and .hex files.
Let me know if not. |
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Re: Brand new vna screen messed up
#crash
#hardware
#improvement
#nanovna-h_v3dot4
#white
Roger I'll check that too and report back. All help is appreciated thank you guys for taking the time to help me with this.. Much appreciated. Thank you sirs!!!!
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Re: Brand new vna screen messed up
#crash
#hardware
#improvement
#nanovna-h_v3dot4
#white
I'd bet anything it's either a shorted or bad component. Little smd capacitor or something. And I'll trace it down. Again I ain't no master of electronics. But I'm nice with a meter and an iron. But thank you for your help Larry. Hat off to you sir
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Re: Brand new vna screen messed up
#crash
#hardware
#improvement
#nanovna-h_v3dot4
#white
OK so I peeled the screen out and soldered the main flex ribbon. Buy it didnt help.THEN....boy I had unplugged the battery for safety and forgot. Well I plugged it in an boom. On it comes display works no problem. The tinkerer in me suspects a short in the charge circuit. Which is directly affecting the display. I'm no engineer but seems to make sense. Figured I'd put this out there in case anyone else buys from these dirt bags
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Re: Brand new vna screen messed up
#crash
#hardware
#improvement
#nanovna-h_v3dot4
#white
Hi Roger,
toggle quoted message
Show quoted text
The issue was described as sometimes the user gets a white screen and sometimes the unit displays everything correctly on the LCD. Several forum members and I had a similar experience and resoldering the flex fixed the problem. ...Larry On Tuesday, August 4, 2020, 3:36:51 p.m. EDT, Roger Need via groups.io <sailtamarack@...> wrote:
Larry, I seem to recall some posts where the firmware was not installed correctly or the unit was in DFU mode and the NanoVNA had a white screen.? Jumpering the pins to DFU mode and reinstalling firmware solved the problem. I am probably wrong and you have a better answer. Roger |
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Re: NanoVNA application by OneOfEleven
#applications
On Tue, Aug 4, 2020 at 04:22 PM, OneOfEleven wrote:
================================================== /g/nanovna-users/message/16157 |
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Re: NanoVNA application by OneOfEleven
#applications
On Tue, Aug 4, 2020 at 08:17 PM, DiSlord wrote:
I use DfuSe v3.0.6 from STMThat's what I've been using too, but I only get DFU files with a single image element within it. Can yourself or Igor send me the DFU file it's not working with please ? .. I can fix things then. |
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Re: Brand new vna screen messed up
#crash
#hardware
#improvement
#nanovna-h_v3dot4
#white
If, when the unit is running on battery only, the activity LED is flashing, check the LCD cable.
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Show quoted text
If the LED is not flashing - you've got other hardware or firmware problems. Since there are a number of manufacturers of the original Nanovna, and the quality varies, you'll have to go slow and eliminate each area. Good luck. On Tuesday, August 4, 2020, 2:58:56 p.m. EDT, bmanthug@... <bmanthug@...> wrote:
OK that's what I was looking for. I'm not sending it back. I'm way too much of a tinkerer to bother with that. I'll just buy another and leave negative feedback. But knowing it's the ribbon I'll just pop the screen out and fix it. Anything specific I should know or do you not know |
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Re: NanoVNA application by OneOfEleven
#applications
Could have your DFU file DiSlord to use and fix the problem with ?
It's not a bug, just a small limit I have placed on the DFU file format, I can modify to allow more DFU types. What did you use to compile to the DFU file with I wonder ? |
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Re: Brand new vna screen messed up
#crash
#hardware
#improvement
#nanovna-h_v3dot4
#white
OK that's what I was looking for. I'm not sending it back. I'm way too much of a tinkerer to bother with that. I'll just buy another and leave negative feedback. But knowing it's the ribbon I'll just pop the screen out and fix it. Anything specific I should know or do you not know
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building from source
Glen K4KV
Apparently, I made a big mistake.? I let the Eclipse run and run.? It now has all
project boards known to man in it.? When I did a clean then build all, it took more than half an hour. I kept seeing the boards coming across on the Console, like F103Dicovery, then Olimex, then Nucleo, etc. Perhaps 100's of them. I guess I have to figure out how to select one project board only... It apparently, now, compiled almost all of them without errors. I will have to search the hard drive for the files... 73 Glen K4KV ps - Life was a lot more simple, when I wrote all the code myself and did not use Github |
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Re: Brand new vna screen messed up
#crash
#hardware
#improvement
#nanovna-h_v3dot4
#white
If you bought it on eBay, you need to open a refund complaint with eBay support and send this unit back to get a refund.
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Show quoted text
It sounds like you were sent a faulty unit - ebay is very good at keeping its vendors honest. Aside from that, if you see the activity LED flashing (not the charge LED) when the display is white, it's most likely a display issue. If you're VERY careful, you can pop the LCD out of its frame and touch up the solder on its ribbon cable. On Tuesday, August 4, 2020, 2:49:08 p.m. EDT, bmanthug@... <bmanthug@...> wrote:
I have the nano vna h and brand new out of the box it has white screen. Now I assumed I was seeing the back light and the screen was toast. No response from "the888store" on ebay where I bought it. But I was using it with the computer and the coax cable I had to solder to it in true hacker fashion. Because they didn't send me any cables at all either. But I had it plugged in to the computer and when I unplugged it.... The screen stared working perfect. Upon plugging it back in when it died...the screen stopped working. I need to know what it is that's causing it to be in and out like this. Anyone has any info I would greatly appreciate it |
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Brand new vna screen messed up
#crash
#hardware
#improvement
#nanovna-h_v3dot4
#white
I have the nano vna h and brand new out of the box it has white screen. Now I assumed I was seeing the back light and the screen was toast. No response from "the888store" on ebay where I bought it. But I was using it with the computer and the coax cable I had to solder to it in true hacker fashion. Because they didn't send me any cables at all either. But I had it plugged in to the computer and when I unplugged it.... The screen stared working perfect. Upon plugging it back in when it died...the screen stopped working. I need to know what it is that's causing it to be in and out like this. Anyone has any info I would greatly appreciate it
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Re: NanoVNA application by OneOfEleven
#applications
On Tue, Aug 4, 2020 at 11:36 AM, OneOfEleven wrote:
87189 bytes loaded OK from G:\Github\forkNanoVNA\nanoVNA-H4 v1.0.12 beta.dfu |
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Re: NanoVNA application by OneOfEleven
#applications
OneOfEleven.
Error in FW by DiSlord. It looks Ok with your FW. 73. |
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Re: NanoVNA application by OneOfEleven
#applications
And try not to upload a .HEX file - for now.
Stay with .DFU or .BIN files - for now. |
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Re: building from source
Using an Ubuntu 18.04, here are the instructions in order to have a build from the excellent work of DiSlord
======================================================================================= wget sudo tar xfj gcc-arm-none-eabi-8-2018-q4-major-linux.tar.bz2 -C /usr/local PATH=/usr/local/gcc-arm-none-eabi-8-2018-q4-major/bin:$PATH git clone --single-branch --branch H4 cd NanoVNA git submodule update --init --recursive make =================================================================== After that, successful build output files reside in NanoVNA/build folder. Hope these help you guys. This is the method I use and it works and builds ok for me here. 73, Christos SV1EIA |
Igor - PY3IG
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