DGH

Question 1

Explain the difference between the $ prompt and the # prompt on a DGH transmitter?

Answer 1

$: Short or normal format response and # is for long format response which contains a checksum for error checking

Question 2

Describe DGH module communication.

Answer 2

DGH modules only respond to a command. The host PC transmits a command to the module and the module responds back. This is called Master/slave method. The DGH module can never initialize communication first.

Question 3

All data in DGH message frames are in _______ format.

Answer 3

ASCII

Question 4

What character (or sequence of characters) indicates the end of a DGH message?

Answer 4

CR: Carriage Return

Question 5

What are the two types of DGH commands and how are they different?

Answer 5

Non-write protected commands: mostly common commands that read data from the module

Write protected commands: module configuration commands. First a Write Enable command must be sent followed by a Write Protected command.

Question 6

What DGH command must precede any protected command?

Answer 6

Write Enable command