Teledyne LeCroy Merlin Mobile - Users Manual - Manual (Page 22)

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Merlin Mobile User’s Manual CATC SW Version 2.0
HCITrace Probe Cable
The HCITrace Probe Cable has three probes:
• ‘Gnd’ – Should be connected to the reference/ground wire
• ‘Host’ – Should be connected to the wire that carries the down-link traffic from
the host to the controller.
• ‘BTC’– Should be connected to the wire that carries the up-link traffic from
the controller to the host.
HCITrace RS232 Cable
Has three DB-9 connectors:
• RS-232/Probe - Should be connected to the HCITrace Probe Cable or to the
TTL to RS232 converter (depending whether the signal voltage in the IUT is
TTL or RS-232).
• COM A - Should be connected to one of the serial inputs of the 2-port RS232
to USB converter.
• COM B - Should be connected to one of the other serial input of the 2-port
RS232 to USB converter.
TTL to RS232 converter
Should be used only when the signal voltage in the IUT is TTL and not
RS-232.
The DB-9 connector marked with ‘TTL’ should be connected to the
HCITrace Probe Cable.
The DB-9 connector marked with ‘RS-232’ should be connected to the
'RS-232'/Probe connector of the HCITrace RS232 Cable.
2-port RS232 to USB converter -
This converter is used so the serial signals can be delivered to the host
machine through a USB input.
USB cable –
Connects the 2-port RS232 to USB converter to the Host machine USB
port.
HCI Probe configurations
The HCI Probe can be used in two configurations:
• For monitoring UART level signals
• For monitoring RS232 level signals