Connected VDD and Boot0
Powered on device and disconnected jumper
plugged in usb , refreshed com port, hit connect
I have tried installing the firmware by loading it under the open file tab, under Memory & File Editing as well as selecting bin file from erasing and programing
Select Download or Start Programing
once complete hit ok
Hit disconnect
power cycle
White Screen?

Yeah.? Weird right??? I try changing the port and no matter which I pick up to COM100 I get "The port has been opened by another application..." so I haven't accepted the change. What would you suggest, if anything?

Please describe the exact steps you took to re-install the FW so people can spot possible errors.
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On Mon, Mar 25, 2024 at 09:28 AM, Prawlin wrote:

Just because a unit has an ESD protected input, does not mean it suddenly becomes totally immune to ESD or input Voltage overload damage. It just gets a little bit less susceptible than it was before. It’s still highly ESD vulnerable. All such SA equipments are, at any price.

Peter,

Good points.?

The type of protection device(s) will determine what level of Electrostatic discharge (ESD) can be tolerated.



The tinySA needs to use low capacitance protection devices on the front end because it has a very high frequency input requirement.? Low capacitance parts limit the degree of ESD protection and so users need to be careful.? Walking across a nylon carpet in the winter with an antenna connected to the tinySA is asking for trouble.

Roger

On Mon, Mar 25, 2024 at 05:14 AM, Hugen wrote:

Unfortunately it looks like your RF switch and LNA are damaged, if it is ESD damage it usually only damages the RF switch. Maybe you accidentally fed an RF signal that exceeded the power limit, you can refer to the wiki to replace the RF switch and LNA!

Thanks. I checked out the attenuator and it shows flat green line, so good I assume. Just need to source the RF switch now. Cheers

I've tried to connect the VDD and BOOOT0 and reinstall the firmware and it continues to be a white screen.?

On Mon, Mar 25, 2024 at 03:44 PM, Richard B. Emerson wrote:

In a thread about the antenna attachment, I thought you said something about the antenna being a potential (no pun intended) ESD risk. Can you fill that in a little, please?

73
Rick
KC3DOO

I'm trying not to get drawn into this but…. Just because a unit has an ESD protected input, does not mean it suddenly becomes totally immune to ESD or input Voltage overload damage. It just gets a little bit less susceptible than it was before. It’s still highly ESD vulnerable. All such SA equipments are, at any price.

To anyone who knows it is pretty obvious that a simple exposed metal antenna connected straight to the SA input is going to be highly vulnerable. Just touch it accidentally and momentarily to something that is floating at maybe half grid voltage (many non earthed SMPS products for instance?) or to earth whilst TinySA is being charged by such a grid floating USB power supply. As with full size analysers and scopes costing many thousands, due diligence still needs to be applied. Peter

On Mon, Mar 25, 2024 at 02:55 PM, chri5k wrote:

Particularly iffy when someone who doesn't know what they don't know inserts themselves between those who know they know and the problem.

Especially so when (AFAIK) the person who doesn’t know what he doesn’t know hasn’t yet got in his possession an example of the actual instrument that is being discussed! Often “less is more” IMHO. Peter

In a thread about the antenna attachment, I thought you said something about the antenna being a potential (no pun intended) ESD risk. Can you fill that in a little, please?

73
Rick
KC3DOO

All tinySA Ultra have always had ESD protection
Happy you do read the wiki :-)
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Basic

Basic or Ultra?
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Good morning,

I recently purchased a TinySA and went through the first use steps and updated the firmware using the STM32 windows application. After completion I power cycled the unit as instructed and I am getting a grey/white blank screen. It will not reconnect because it is no longer in DFU mode.? Any suggestions would be greatly appreciated.?

Jason?

Particularly iffy when someone who doesn't know what they don't know inserts themselves between those who know they know and the problem.

On Mon, Mar 25, 2024 at 09:43 AM, Prawlin wrote:

Methinks you’re trying just a bit too hard Rick ?. I can’t keep up with the traffic on here recently?.
As Erik is the designer and Hugen is the maker (AFAIK) it’s pretty certain they will always give the right answers!

Remote diagnosis is always an iffy proposition, hence "almost certainly". Missing some crucial piece of information, an otherwise good guess can come up with the wrong answer.?

73
Rick
KC3DOO

On Mon, Mar 25, 2024 at 09:55 AM, Matt Harris wrote:

I think my first clue that this is a scam and is not legit would be that either someone made the tinySA Ultra extremely large, or someone has hands smaller than a cat's paw.

I have to admit the screen and hand sizes went sailing right past me. Between the bogus artwork and the selling price ($139 at R&L), there are red flags in plain sight.?

Camil Direct just sent me a note full of apology. A day late and more than a dollar short... >:-(

73?
Rick
KC3DOO

开云体育

And perhaps to get a breast of the trace ? hi

On Mon, Mar 25, 2024 at 01:55 PM, Matt Harris wrote:

I think my first clue that this is a scam and is not legit would be that either someone made the tinySA Ultra extremely large, or someone has hands smaller than a cat's paw.

Ha, that's just a viewpoint from your 'perspective' :-)

Here's an easy question for ya'll.? In the Wiki FAQ it says about ESD protection "Make sure you have FW v1.3-3 or later. Go to CONFIG/VERSION. If the last line of the displayed version info is "ESD protected" the diodes are installed."

My vendor was Seesii via Amazon and unit was purchased March 15th.? I've updated the FW to the current .156 and it passes all selftests and calibration so hoping it's not a clone.? I look at the last line of the version info and don't find the ESD Protected.? This is the version screen.? I'm assuming it's not ESD protected.? Why were the protection diodes dropped in the later HW versions?

Thank ya'll for all the info I've learned from this group.

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73 de Ken H> K9FV

I think my first clue that this is a scam and is not legit would be that either someone made the tinySA Ultra extremely large, or someone has hands smaller than a cat's paw.