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Re: Questions about Firmware

 

Well, it is a rainy day so I tried to do the upgrade.

I went to the [email protected] | Wiki Main Menu and under Firmware and under "Easy windows firmware update" downloaded the "How to write firmware (Windows GUI)" document.

To make it easier I printed out the document. Since I have a DFU file I skipped the first two pages on the DFU File Manager.

I already downloaded DfuSe Demo.

I had DIP IC socket pins with the correct 2.54mm spacing so I shorted two pins together and inserted the shunt into the two rightmost pins P1 VDD and BOOT0.

I switched on the unit and got the white screen and removed the pins.

I switched down the unit and powered up to verify gen111.taobao.com was still working.

I switched down the unit into inserted the pin shunt into P1 and powered up into the white screen boot mode.

I connected the unit to my laptop and started DfuSe Demo. It did not recognize the device so I started Device Manager. It showed the ST driver with an error. I ran update driver and searched for a driver wpdate (This is a Windows 10 laptop).

It found and installed the ST driver and DfuSe Demo found the DFU Device.

Be sure to read the directions at the bottom of page 4. The first step is to save the existing DFU file with the Upload Action Choose and Load options. I saved the existing file and labeled it gen111

I did the upgrade with the NanoVNA-0.3.0m.dfu file. I selected Choose and after a couple of messages the bottom bar turned green and ended with "Target 00: Verify successful" I left the DFU mode. My unit did not automatically reboot so I switched the unit off and on.

The screen came on. I selected the CONFIG and VERSION touchscreen buttons and it shows Version 0.3.0m

Success!

Since I only have one screen on this laptop I usually print upgrade instruction and read them a couple of times before starting. I usually print two pages per sheet to save paper:-) The document is next to my laptop while upgrading and I add notes as I upgrade.

I will continue playing with this great little VNA. I use NanoVNA SERVER and will try NAnoVNASHARP and the NanoVNA WebApp.

Mike N2MS

On October 22, 2019 at 9:42 AM n2msqrp <mstangelo@...> wrote:


I have a Hugen nanoVNA with the gen111.taobao.com firmware.
I use it for HF measurements and have been happy with the performance.
I have been waiting for the firmware revisions to settle down before I upgrade.
This looks like a mature version.
Should I be aware of any issues when upgrading to this version?

Thanks to all for the effort.

Mike N2MS


On October 21, 2019 at 3:36 PM QRP RX <qrp.ddc@...> wrote:


On Mon, Aug 5, 2019 at 07:07 AM, <hugen@...> wrote:


Not every si5351 can be stably overclocked to 1200MHz. As the temperature
increases, the internal VCO operating limit frequency of the si5351 will
decrease. If you notice a significant spike(>0dB) in your nanoVNA at 300 MHz
or 900 MHz, I recommend that you use the 800MHz firmware.
You can check your hardware with this firmware: /g/nanovna-users/message/5445

It includes latest changes from @edy555, @hugen79, @qrp73 repositories and performs si5351 PLL check. If you see red PLL icon near battery icon, it means that your si5351 works unstable.

Also, this firmware supports @cho45 NanoVNA WebApp and has no freezes and errors. :)
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