This is the most basic trace mode and supports data capture from the primary channel only.
Upon execution of the trace T command, trace state 2 (Trigger Enabled) is immediately entered and data capture commences without any Pre Trigger Delay (R20 is not used and can be any value). The analogue trigger implements level sensitivity only and any values programmed to R7 Bits 4 & 5 for an edge trigger are ignored.
The post trigger delay state is entered after a valid trigger condition is seen. The duration of this delay (T[PTD]) is calculated based upon the Time-base Expansion R13 and and Post Trigger Delay R11 and R12 registers according to the formula:
T[PTD] = 7 + ((PTD + 1) * (5 + 3 * (TB+1))) + 2 * (PTD[hi] + 1) + Uwhere:
The minimum post trigger delay is therefore 8 uS ± 1.2 uS and the maximum 20.342582 S ± 1.2 uS.
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