User Manual

Using the Bus Key

The Bus key configures the UART, SPI, I

C or Parallel

buses.

1. Press the

BUS

key to access the Bus menu and

to display the bus on the display.

 Only those digital channels that have been

activated from the Logic Analyzer menu will

be accessible from the Bus menu.

 Pressing the Bus key again will remove the

bus from the display.

UART Bus

The UART bus menu is designed to decode RS-232 and

other common RS-232 variants such as RS-422 and RS-

485.

1. Press the Bus soft-key and select UART.

2. Press Define Inputs to select the Tx and Rx inputs

as well as the signal polarity.

3. Press Thresholds to set the thresholds.

 There are 5 pre-set threshold levels in

addition to the User-defined threshold

setting (TTL, 5.0V CMOS, 3.3V CMOS,

2.5V CMOS, ECL, PECL, 0V).

4. Press the Configure to set the baud rate, data bits,

parity and packet settings.

5. Press Bus Display to configure how the data is

displayed, either hex or binary.