Specific settings for the SUMP device are controlled from the Device Settings dialog:
The various fields are:
- The timeout limit (in seconds) applied on a read or write with the SUMP device.
A blank entry means no timeout is applied.
- Selects the source of the clock:
- uses the clock generated internally by the SUMP device.
- uses a clock signal connected to the CKI pin, clocking on the rising edge.
- uses a clock signal connected to the CKI pin, clocking on the falling edge.
- selects a rate for the internal clock to generate.
- selects the number of samples to record.
- causes the checked channel groups to be recorded.
- enables one of the mutually exclusive signal processing options:
- one sample is read in every clock cycle
- very short input pulses are ignored, reading one sample per clock cycle
- two samples are read in every clock cycle
- enables Run-Length-Encoded data transmission when checked.
- check when the SUMP device sends its most recent samples first (e.g. Open Bench Logic Sniffer.)
When not checked the samples received first are assumed to be the earliest.
- recording begins as soon as "capture" is clicked.
- Starts recording based on a single trigger signal configured in "Stage 0".
- Starts recording based on a combination of triggers in Stages 0..3 .
- ratio of samples that will be recorded before and after the trigger firing.
- These trigger stages can be combined in various ways
- the stage is armed and begins testing inputs as soon as the sampling run starts.
- the stage will be armed after the specified trigger Level is set by another stage.
- the associated Trigger Mask and Trigger Values are tested in parallel against the respective input channels.
- the associated Trigger Mask and Trigger Values are tested against successive values from one of the input channels.
- specifies the input channel to use for Serial trigger mode. A channel number from 0 to 31 may be specified.
- check the channels (in parallel mode) or successive samples (in serial mode) to be tested by this trigger.
- checked channels (in parallel mode) or successive samples (in serial mode) must be read as 1 for the trigger to fire. Un-checked values must read as 0.
specifies the action to take when this trigger fires:
- begin recording.
- advance the trigger level by one to arm another stage.
- delays a given number of clock cycles between the trigger firing and the specified Action.
From 0 to 65,535 samples may be specified.
For convenience this delay can be entered as a sample count, or a time in seconds.
- arms trigger stages and begins a recording run.
- accepts the SUMP configuration to be used in a later recording run.
- throws away the values entered with no further action.