Hardware Connections
Spaced Message:
P+ID
P+ID
P+ID
P+ID
P
Header
Data…
EOM
On
Off
Off
On
On time
ID detected – Echo stays on until EOM
ID Repeat:
P
ID
ID
ID
ID
ID
ID
ID
ID
Header
Data…
EOM
On
Off
Off
On
On time
ID detected – Echo stays on until EOM
Figure 3. On/Off Time Cycling
6
Hardware Connections
Figure 4 shows the connection of Echo to the MCU, highlighting the required and optional connections.
The MCU pin used for each connection is defined in the Echo.H header file.
Software Drivers for MC33696, Rev. 1
6
Freescale Semiconductor
FREESCALE [ Freescale ]
