I have a typical PC running Win 7 latest version and I can't see my TinySA when I connect it.? I'm trying to find the thread where this is discussed and have had no luck. Can anyone shoot me a link to the "cannot connect" thread?? Thanks in advance for any help.?

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This might be what you need: /g/tinysa/topic/80503815

The TinySA communicates with the PC in two modes:? USB Console and DFU mode.? They use different drivers for each mode.
USB Console Mode is used to communicate with the PC application "tinySA-App"
DFU mode is used to update the firmware

WIN 7 does not come with the drivers to recognize the TinySA in USB mode or DFU mode.

A similar problem exists with the NanoVNA which uses a similar USB interface.? The problem is discussed in this document which uses the PC app NanoVNA Saver (TinySA uses "tinySA-App")?


Here is a source for the driver for USB mode . You want? en.stsw-stm32102.zip (STM32 Virtual Com Port driver).? Unzip it and install the Windows 7 version.? After that you can connect to "tinySA-App" by selecting the associated COM port.

For upgrading the firmware you will need to install the DFU driver which is another stp.

Roger

i have TinySA version v-1.3-111-gob2fe54 May 15, 2021.
It operates beautifully and i would like to do the firmware update.? However, I do not see the unit recognized in the DFU program.? I followed the steps as showed in the wiki instructions.
What can I be doing wrong.?? BTW, It works beautifully with a Windows 10 SA program.
Help, please.

I can confirm the USB cable issue, too.

Yesterday, I went to update firmware using the same PC I originally updated FW with right after I got the tinySA.? I couldn't get it to recognize the tinySA and I spent 20 minutes trying to figure it out.? Finally tried a different cable, and everything worked as expected.

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Cable is good.? Any other ideas?

On Sat, Sep 25, 2021 at 04:23 PM, DAVE REISER wrote:

BTW, It works beautifully with a Windows 10 SA program.

Which SA program ?

If it is the Tiny SA app, it has a built in upload feature you can use, which makes it all very easy.

Use the button bar on the top row with the two black triangles

Regards,

Martin

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Yes, it can work but only if you have the DFU mode drivers installed. Most problems trying to upgrade the firmware (using DFU or whatever) are caused by lacking this driver, that is not the normal one for running the SA controlled by a PC.

Regards,

Ignacio EB4APL

On Sat, Sep 25, 2021 at 04:23 PM, DAVE REISER wrote:

BTW, It works beautifully with a Windows 10 SA program.

Which SA program ?

If it is the Tiny SA app, it has a built in upload feature you can use, which makes it all very easy.

Use the button bar on the top row with the two black triangles

Regards,

Martin

On Sun, Sep 26, 2021 at 10:37 PM, EB4APL wrote:

Yes, it can work but only if you have the DFU mode drivers installed.

Ah OK, I thought that the TinySA app installed the drivers too, my mistake.

The DFU drivers must be installed separately (and correctly) for this to work.

Regards,

Martin