EVM-900-DT 데이터 시트보기 (PDF) - Unspecified

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EVM-900-DT

HumDT™ Series RF Transceiver Module

Unspecified 

Read Associated Module Count - Command Code = 3D

This command reads the total number of modules associated with the

current module.

Read Associated Module Count Command and Response

Command

Start Command End

3C

3D

3E

Response

Start Response Param 1

End

3C

3D

Count

3E

Figure 51: Read Associated Module Count Command and Response

For an ED, the only associated module is the AP, so the count will always

be 1. An AP outputs the number of EDs associated with it. The lack of

intelligence in an RE prevents it from being counted. An RE always outputs

a 0 because it lacks the intelligence to store its associated AP.

Output CW Signal - Command Code = 42

This command instructs the module to output an unmodulated CW signal.

This can be useful during testing for regulatory compliance.

Output CW Signal Command and Response

Command

Start Command Param 1 Param 1

End

3C

42

Chan TXPower

3E

Response

Start Response Param 1

End

3C

42

Status

3E

Figure 52: Output CW Signal Command and Response

The module should be configured as an End Device before issuing this

command.

Chan is the channel number to be used. It ranges from 0 to 3. Figure 16

shows the channel numbers and frequencies.

TXPower is the power level of the signal. The power codes are shown in

Figure 26.

The response parameter indicates if the command was successful (00) or if

there was an error (01).

This command takes the module out of the communication stack so a

reset is required to bring the module back to normal operation.

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