Test-Ok eC-test-mate, Hardware Reference Manual

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eC-test-mate Type I (TCC 211)
General purpose tester with a power supply: four analog inputs, four analog outputs and four digital
bidirectional in/outputs and four digital outputs and a UART for serial communication.
Functional description
This section describes all the functional blocks of the eC-test-mate Type I.
Besides the electrical specification of the interface pins on the connectors of the eC-test-mate Type I there
are also references to the TEST-OK Description Language (TDL) commands that can be used to control the
functional blocks.
A block diagram of the eC-test-mate Type I is shown in the figure below:
The eC-test-mate Type I board is connected to a PC via USB. Via this connection, information about outputs
to be set and values of inputs are exchanged about five times per second.
Analog Inputs (101..104)
There are four identical high impedance analog inputs on the board which are fed into 12-bit Analog-to-Digital
Converters (ADC for short). It is sampled at 2kHz and digitally filtered. The valid input voltage range is
100mV..24V, with a resolution of 1 mV.