Serial decode on Rigol DHO814

[Bdm222]

I'm finding the serial decode fails if the Channel menu is set for 10x probes. Has anyone else had this problem?

[Fungus]

I'm finding the serial decode fails if the Channel menu is set for 10x probes. Has anyone else had this problem?

Yes, everybody.

There's a new firmware out today. I haven't tried it yet but maybe it fixes it.

[Fungus]

Update: This is fixed in the new firmware.

[Bdm222]

It looks like the scope does not consider probe scaling when doing the decode. I tend to set the scope to 10x on the probes and in the channel menu. In this configuration a trigger level of 2.5 volts for the decode produces garbage on a 5 volt waveform. But a trigger value of 30 volts for the decode trigger works fine. So, using the "Copy Trig" button will fail.

[Bdm222]

Right you are. Firmware 1.03 fixed it.

[Fungus]

It looks like the scope does not consider probe scaling when doing the decode. I tend to set the scope to 10x on the probes and in the channel menu. In this configuration a trigger level of 2.5 volts for the decode produces garbage on a 5 volt waveform. But a trigger value of 30 volts for the decode trigger works fine. So, using the "Copy Trig" button will fail.

Yes, it's a well-known (around here) bug.

The voltage isn't scaled with the probe so the numbers are only correct with probe attenuation set to 1x mode.

(nb. you can leave the probe switch in the 10x position, the attenuation setting is just a multiplier for the numbers on screen, nothing more)