Re: SYSJOINT NanoVNA-F V2
Hello Bob, the NanoVNA is not recognized on my computer as a U disk drive so there is no way that I can load the firmware, I read the manual and can¡¯t find anything on Flashing the firmware also looked on the -F V2 wiki IO forum did not see anything.
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On Tuesday, March 12, 2024 at 10:20:17 a.m. EDT, CORNACCHIA via groups.io <corcsal@...> wrote: Thank You Bob , I will try that. ? ? On Tuesday, March 12, 2024 at 08:38:08 a.m. EDT, Bob Ecclestone VK2ZRE <becclest@...> wrote:? Hi, Follow the instructions in the manual to put the NanoVNA-F in DFU mode. This involves pressing and holding the jogwheel or button while powering the unit on. The screen will be blank. On a Windows machine, go to File Explorer and your VNA will appear as USB Storage device. Copy the new firmware file into the root directory of that device. Power the VNA off and then power up as normal. The device will update automatically. HTH...Bob VK2ZRE On 12/03/2024 8:57 am, CORNACCHIA via groups.io wrote: ? Hello Raymond, How to recover?and and flash the NanoVNA?it will not turn on the screen is Dark, thank You
? ? ? On Monday, March 11, 2024 at 04:07:19 p.m. EDT, Raymond Domp Frank <hewpatek@...> wrote:
?
? ISTR the latest is version 0.5.0 or so. Definitely nothing with a 4 in it. I saw it on the Sysjoint site the other day. Make sure to choose the correct device, apparently F V2. There¡¯s also an F V3 btw.
Just flash that version. Way to recover and be able to flash are pretty simple and all over these Groups. There¡¯s no such thing as hardware ¡°bricking¡± these devices by trying to load a wrong firmware.
Look for what many have done and described before you.
Raymond
? ?
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Re: SYSJOINT NanoVNA-F V2
Hello Raymond, I am unable to find the information in the operating manual on page 37 as you mentioned, the NanoVNA is not recognized on my computer as a U disk drive so there is no way that I can load the firmware, I read the manual and can¡¯t find anything on Flashing the firmware also looked on the -F V2 wiki IO forum did not see anything.
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On Tuesday, March 12, 2024 at 10:21:41 a.m. EDT, CORNACCHIA via groups.io <corcsal@...> wrote: Thank You Raymond, I will try that. ? ? On Monday, March 11, 2024 at 06:19:34 p.m. EDT, Raymond Domp Frank <hewpatek@...> wrote:? On Mon, Mar 11, 2024 at 10:57 PM, CORNACCHIA wrote:
How to recover?and and flash the NanoVNA?it will not turn on the screen is
Dark,
Normally, you don't need a working display for flashing. Read page 37, chapter 8 of the V2 user manual. It explains how to flash. If that doesn't work, have a look at the many posts in these groups, like possibly the NanoVNA group. Many of the other NanoVNA-like devices have their own groups, like the NanoVNA-F V2 group. You'll probably be looking for the procedure to put your device into DFU mode (without display in this case). Most likely (almost) the same as with the many other devices. It needs a temporary short between two pins. I don't know if it's the same with the -F V2. Raymond Raymond
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Re: Clock Generator Si5351at 24MHz
The SAA-2 / NanoVNA v2 designer has stated that si5351 and adf4350 had better phase noise performance with a 24MHz clock, so that is what got used.
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Re: Clock Generator Si5351at 24MHz
The datasheet summary info is sort of misleading. It says 25 or 27, but down within, it says min 25 max 27.
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Re: Clock Generator Si5351at 24MHz
The 24 MHz clock in that NanoVNA product that this group is not about is
likely used because it's easy to get a 48 MHz clock for USB from there.
A simple frequency doubler can be used.
The spec sheet for the Si5351A lists two clock frequencies at the
beginning, 25 and 27 MHz, and I believe the original PC software for
generating parameters for the Si5351A only worked at those specific
frequencies, but it has always listed a range from 25 to 27 MHz later in
the sheet. Lots of other programs and libraries will work for an Si5351A
that is used at other clock speeds, and a number of products
use non-standard speeds. The uBITX, for example, uses a 26 MHz clock. I
don't know why; perhaps the manufacturer has a cheap source of 26 MHz
crystals.
For a while, the 80 and 160 meter versions of the QCX from QRP Labs used
frequencies lower than 25 MHz, because their original method of using the
chip to generate quadrature clock signals required that change to work at
lower frequencies. Hans Summers later found a different method that does
not require the change in clock speed, and current production does not
use the reduced clock speed. One of the things that drove looking for
another method happened because there was a shortage of the Si5351A for a
while during the pandemic years, and so some companies (including QRP Labs)
switched to an alternative from China, the MS5351M. It's a drop-in
replacement in most cases, but it will not work at the 12 MHz clock
frequency that was used in the 160 meter QCX. Only one version of the
MS5351M is made, the 10 pin MSOP package that generates three clocks. There
are no equivalents to the Si5351A in larger packages that have more
outputs, nor to the Si5351B and Si5351C that have additional features.
Many products, including the original NanoVNA and NanoVNA-H that this group
IS about, also operate the Si5351A out of spec in another way. The
specifications only guarantee operation up to 200 MHz, but many products
push it to higher frequencies approaching 300 MHz. The exact frequency an
Si5351A can reach varies by chip, and also depends on temperature. The chip
may consume more power than the spec sheet says at those higher
frequencies, and specs such as duty cycle and jitter may not be met.
The original version of the chip, without the -B at the end, was only
specified to 160 MHz, which is why the Adafruit modules list that as their
maximum frequency, but that version of the chip hasn't been made for many
years and all current production modules use the version that is specified
to run at 200 MHz. The specific version used in most of the products
familiar to hams is Si5351A-B-GT (or GTR, meaning it comes on a reel rather
than loose), which is a 10 pin MSOP rather than a 16 or 20 pin QFN. (The
original was also offered in a 24 pin QSOP.) Variants like
Si5351A-Bxxxxx-GT are sometimes used because of unavailability of the
unprogrammed parts; those are pre-programmed chips that generate fixed
outputs at power-up, but they still respond to I2C commands to change the
outputs. Some of those also change the I2C port; watch out for that.
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On Tue, Mar 12, 2024 at 5:54?AM Rasoul <mojtahedzadeh@...> wrote: I understand that the system needs clocks like 48 MHz (USB), etc. But in
the datasheet of Si5351A, it mentions that,
1. Generates up to eight non-integer-related frequencies from 2.5 kHz to
200 MHz
2. Exact frequency synthesis at each output (0 ppm error)
3. Operates from a low-cost, fixed frequency crystal: 25 or 27 MHz
So, to my understanding, using 25 or 27 Mhz crystal shall be enough to
generate any frequency between 2.5 Khz up to 200 MHz (including a 48 MHz
for USB, etc.)
Am I missing something here?
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Re: SYSJOINT NanoVNA-F V2
Thank You Raymond, I will try that.
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On Monday, March 11, 2024 at 06:19:34 p.m. EDT, Raymond Domp Frank <hewpatek@...> wrote: On Mon, Mar 11, 2024 at 10:57 PM, CORNACCHIA wrote:
How to recover?and and flash the NanoVNA?it will not turn on the screen is
Dark,
Normally, you don't need a working display for flashing. Read page 37, chapter 8 of the V2 user manual. It explains how to flash. If that doesn't work, have a look at the many posts in these groups, like possibly the NanoVNA group. Many of the other NanoVNA-like devices have their own groups, like the NanoVNA-F V2 group. You'll probably be looking for the procedure to put your device into DFU mode (without display in this case). Most likely (almost) the same as with the many other devices. It needs a temporary short between two pins. I don't know if it's the same with the -F V2. Raymond Raymond
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Re: SYSJOINT NanoVNA-F V2
Thank You Bob , I will try that.
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On Tuesday, March 12, 2024 at 08:38:08 a.m. EDT, Bob Ecclestone VK2ZRE <becclest@...> wrote: Hi, Follow the instructions in the manual to put the NanoVNA-F in DFU mode. This involves pressing and holding the jogwheel or button while powering the unit on. The screen will be blank. On a Windows machine, go to File Explorer and your VNA will appear as USB Storage device. Copy the new firmware file into the root directory of that device. Power the VNA off and then power up as normal. The device will update automatically. HTH...Bob VK2ZRE On 12/03/2024 8:57 am, CORNACCHIA via groups.io wrote: ? Hello Raymond, How to recover?and and flash the NanoVNA?it will not turn on the screen is Dark, thank You
? ? ? On Monday, March 11, 2024 at 04:07:19 p.m. EDT, Raymond Domp Frank <hewpatek@...> wrote:
?
? ISTR the latest is version 0.5.0 or so. Definitely nothing with a 4 in it. I saw it on the Sysjoint site the other day. Make sure to choose the correct device, apparently F V2. There¡¯s also an F V3 btw.
Just flash that version. Way to recover and be able to flash are pretty simple and all over these Groups. There¡¯s no such thing as hardware ¡°bricking¡± these devices by trying to load a wrong firmware.
Look for what many have done and described before you.
Raymond
? ?
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Re: Clock Generator Si5351at 24MHz
Correction, the NanoVNA I have uses a 26 MHz TCXO, not a crystal.
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On Mar 12, 2024, at 6:52?AM, Jim Lux <jimlux@...> wrote:
?I can¡¯t speak to the designer¡¯s original intent, but sometimes, you choose a starting frequency for other reasons.
For example, you need to *program* the Si part before it can generate all those frequencies, and if you want your processor to run off the same frequency as you¡¯re going to feed the Si5351, then you choose a frequency for your processor.
I believe the NanoVNA H and similar all use a 26 MHz crystal which is within the range of 25 to 27 given in the data sheet. You¡¯ve said 25 or 27 - that¡¯s what the blurb at the top of the data sheet says, but if you look down in the body of the sheet, it¡¯s Min 25 max 27.
And I suspect that the Si5351 would run just fine at 24 MHz, although the output frequency range might be restricted in some way (maybe a limitation on max output frequency, because of the maximum value for some divider in a PLL)
On Mar 12, 2024, at 2:54?AM, Rasoul <mojtahedzadeh@...> wrote:
?I understand that the system needs clocks like 48 MHz (USB), etc. But in the datasheet of Si5351A, it mentions that,
1. Generates up to eight non-integer-related frequencies from 2.5 kHz to 200 MHz
2. Exact frequency synthesis at each output (0 ppm error)
3. Operates from a low-cost, fixed frequency crystal: 25 or 27 MHz
So, to my understanding, using 25 or 27 Mhz crystal shall be enough to generate any frequency between 2.5 Khz up to 200 MHz (including a 48 MHz for USB, etc.)
Am I missing something here?
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Re: Clock Generator Si5351at 24MHz
I can¡¯t speak to the designer¡¯s original intent, but sometimes, you choose a starting frequency for other reasons.
For example, you need to *program* the Si part before it can generate all those frequencies, and if you want your processor to run off the same frequency as you¡¯re going to feed the Si5351, then you choose a frequency for your processor.
I believe the NanoVNA H and similar all use a 26 MHz crystal which is within the range of 25 to 27 given in the data sheet. You¡¯ve said 25 or 27 - that¡¯s what the blurb at the top of the data sheet says, but if you look down in the body of the sheet, it¡¯s Min 25 max 27.
And I suspect that the Si5351 would run just fine at 24 MHz, although the output frequency range might be restricted in some way (maybe a limitation on max output frequency, because of the maximum value for some divider in a PLL)
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On Mar 12, 2024, at 2:54?AM, Rasoul <mojtahedzadeh@...> wrote:
?I understand that the system needs clocks like 48 MHz (USB), etc. But in the datasheet of Si5351A, it mentions that,
1. Generates up to eight non-integer-related frequencies from 2.5 kHz to 200 MHz
2. Exact frequency synthesis at each output (0 ppm error)
3. Operates from a low-cost, fixed frequency crystal: 25 or 27 MHz
So, to my understanding, using 25 or 27 Mhz crystal shall be enough to generate any frequency between 2.5 Khz up to 200 MHz (including a 48 MHz for USB, etc.)
Am I missing something here?
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Re: SYSJOINT NanoVNA-F V2
Hi,
Follow the instructions in the manual to put the NanoVNA-F in DFU mode.
This involves pressing and holding the jogwheel or button while powering the unit on. The screen will be blank.
On a Windows machine, go to File Explorer and your VNA will appear as USB Storage device.
Copy the new firmware file into the root directory of that device.
Power the VNA off and then power up as normal. The device will update automatically.
HTH...Bob VK2ZRE
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On 12/03/2024 8:57 am, CORNACCHIA via groups.io wrote: Hello Raymond, How to recover?and and flash the NanoVNA?it will not turn on the screen is Dark, thank You
On Monday, March 11, 2024 at 04:07:19 p.m. EDT, Raymond Domp Frank <hewpatek@...> wrote:
ISTR the latest is version 0.5.0 or so. Definitely nothing with a 4 in it. I saw it on the Sysjoint site the other day. Make sure to choose the correct device, apparently F V2. There¡¯s also an F V3 btw.
Just flash that version. Way to recover and be able to flash are pretty simple and all over these Groups. There¡¯s no such thing as hardware ¡°bricking¡± these devices by trying to load a wrong firmware.
Look for what many have done and described before you.
Raymond
|
Re: Clock Generator Si5351at 24MHz
I understand that the system needs clocks like 48 MHz (USB), etc. But in the datasheet of Si5351A, it mentions that,
1. Generates up to eight non-integer-related frequencies from 2.5 kHz to 200 MHz
2. Exact frequency synthesis at each output (0 ppm error)
3. Operates from a low-cost, fixed frequency crystal: 25 or 27 MHz
So, to my understanding, using 25 or 27 Mhz crystal shall be enough to generate any frequency between 2.5 Khz up to 200 MHz (including a 48 MHz for USB, etc.)
Am I missing something here?
|
Re: Clock Generator Si5351at 24MHz
Is it a passive crystal or an oscillator? A passive crystal may still work fine, but some parameters may not be guaranteed for all parts.
External oscillator will work over much wider range. 10MHz is not uncommon.
73, Mike AF7KR
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Re: SYSJOINT NanoVNA-F V2
On Mon, Mar 11, 2024 at 10:57 PM, CORNACCHIA wrote:
How to recover?and and flash the NanoVNA?it will not turn on the screen is
Dark,
Normally, you don't need a working display for flashing. Read page 37, chapter 8 of the V2 user manual. It explains how to flash. If that doesn't work, have a look at the many posts in these groups, like possibly the NanoVNA group. Many of the other NanoVNA-like devices have their own groups, like the NanoVNA-F V2 group. You'll probably be looking for the procedure to put your device into DFU mode (without display in this case). Most likely (almost) the same as with the many other devices. It needs a temporary short between two pins. I don't know if it's the same with the -F V2. Raymond Raymond
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Re: SYSJOINT NanoVNA-F V2
Hello Raymond, How to recover?and and flash the NanoVNA?it will not turn on the screen is Dark, thank You
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On Monday, March 11, 2024 at 04:07:19 p.m. EDT, Raymond Domp Frank <hewpatek@...> wrote:
ISTR the latest is version 0.5.0 or so. Definitely nothing with a 4 in it. I saw it on the Sysjoint site the other day. Make sure to choose the correct device, apparently F V2. There¡¯s also an F V3 btw.
Just flash that version. Way to recover and be able to flash are pretty simple and all over these Groups. There¡¯s no such thing as hardware ¡°bricking¡± these devices by trying to load a wrong firmware.
Look for what many have done and described before you.
Raymond
|
Re: Keysight Webinar on "Network Analyzer Fundamentals"
YouTube
Keysight Labs
U N L I S T E D
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Re: Keysight Webinar on "Network Analyzer Fundamentals"
It works here. Thank you very much.
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Re: SYSJOINT NanoVNA-F V2
ISTR the latest is version 0.5.0 or so. Definitely nothing with a 4 in it. I saw it on the Sysjoint site the other day. Make sure to choose the correct device, apparently F V2. There¡¯s also an F V3 btw.
Just flash that version. Way to recover and be able to flash are pretty simple and all over these Groups. There¡¯s no such thing as hardware ¡°bricking¡± these devices by trying to load a wrong firmware.
Look for what many have done and described before you.
Raymond
|
Re: Keysight Webinar on "Network Analyzer Fundamentals"
Hi,
You can search for it on Keysight webpage, I found it, but I don't know if link will work here:
Best regards, Darko
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Re: SYSJOINT NanoVNA-F V2
Is there any way that I can reset the SYSJOINT?NanoVNA-F V2 to it's original firmware setting, Thank You
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On Monday, March 11, 2024 at 01:16:05 p.m. EDT, nikkarkav <nikosbsf@...> wrote: Did u upload the correct FW for the specific VNA ?? On Mon, Mar 11, 2024 at 6:11?PM CORNACCHIA via groups.io <corcsal= [email protected]> wrote: Hello Group Members I have a SYSJOINT NanoVNA-F V2 that was working
perfectly until I tried to update the firmware to the latest version from
SYSJOINT, when I copied the Bin file to V2 it loaded, the green bar went
all the way to the left than stopped stayed there for a long time, I turned
it off than back on again the blue light stays on but the screen is dark no
display please help Thank You
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Re: SYSJOINT NanoVNA-F V2
Yes I believe it is .4 for the?NanoVNA-F V2?according to SYSJOINT
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On Monday, March 11, 2024 at 01:16:05 p.m. EDT, nikkarkav <nikosbsf@...> wrote: Did u upload the correct FW for the specific VNA ?? On Mon, Mar 11, 2024 at 6:11?PM CORNACCHIA via groups.io <corcsal= [email protected]> wrote: Hello Group Members I have a SYSJOINT NanoVNA-F V2 that was working
perfectly until I tried to update the firmware to the latest version from
SYSJOINT, when I copied the Bin file to V2 it loaded, the green bar went
all the way to the left than stopped stayed there for a long time, I turned
it off than back on again the blue light stays on but the screen is dark no
display please help Thank You
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Ismo V??n?nen OH2FTG
Shirley Dulcey KE1L
gin&pez@arg