Technical data

3-124 Computer Group Literature Center Web Site

Test Descriptions

ELPBCK - External Loopback

Command Input

PPCx-Diag>SCC ELPBCK

Description

This test transmits 256 characters at 38400 baud. The data is received and

compared. If any protocol errors are created or the data is not correct when

received, the test fails.

This test does require an external loopback connector to be installed. For

this test, the following connections need to be made in the loopback

connector:

Response/Messages

After the command has been issued, the following line is printed:

SCC ELPBCK: External Loopback............ Running --->

If all parts of the test are completed correctly, then the test passes:

SCC ELPBCK: External Loopback.......Running ---> PASSED

If any part of the test fails, then the display appears as follows:

SCC ELPBCK: External Loopback.......Running ---> FAILED

SCC/ELPBCK Test Failure Data:

(error message)

Refer to the section SCC Error Messages for a list of the error messages

and their meaning.

TxD connected to RxD