Hello fellow RTB2004 users,
I'm not sure if my problem with this scope is a bug or user error, please help me to figure this out.
I can't get my scope (RTB2004 firmware v2.202) to trigger on logic channels only (it works fine if i analize a protocol, but this is just some simple digital signal).
For my current setup i only use the logic channels D0...D7 (no analog)
- D0 is connected to a low frequency (250Hz) 3.3V logic signal
- D1 is connected to a 500Hz logic signal
- The trigger is setup is set to Edge, rising edge, D1 (or D0 makes no difference), Threshold 1.4V, hold off is off
I am unable to get the scope to (normal) trigger on this signal.
When i lower the frequency of my signal to lets say 1hz i see the arrows (next to D7-0 channel indicator at the bottom of the screen) for channel 0 and 1 change with my signal, so it is being read, but no trigger event occurs.
I can get a display when i force trigger or in 'auto' mode but not in normal mode...
Can someone tell me what i do wrong or can somebody reproduce this problem.
Triggering on an analog input on the same signal works fine, also using only the digital inputs to read spi or I2C and triggering on it works fine (using protocol analyzer), but this 'simple' setup does not work (for me).
Please help me solve this.
With kind regards,
Dexter23