EVALUATION BOARD
- Lepton
7
x1 - Lepton
7
x4 - Technical Information Manual
29
External Connections
Please refer to
Fig. 4.7: R4320CEVB Technical Drawing
page 27.
J1: Power Supply connector: central pin (2.1mm diam.) is the negative terminal. The use of the Power
Supply for R4320CEVB (WALIM0000005) is recommended (see §
Ordering Options
page 8).
J2: header for GPIO external connection
−
J2-1 = GPIO0 (in/out)
−
J1-2 = GPIO1 (in/out)
−
J1-3 = GND
−
J1-4 = GND
−
J1-5 = GPIO2 (in/out)
−
J1-6 = GPIO3 (in/out)
J3: Micro USB female connector,
not supported by R7101C Lepton
7
x1/R7104C Lepton
7
x4 modules
J4: Micro USB female connector for UART via USB interface
J6: Header that can be used to connect UART signals to an external device (see §
Electrical Schematic
page
28 for details)
J7: Jumper that can be removed and replaced with a multimeter for module current consumption
measurements purposes
Jumpers and Switches
Please refer to
Fig. 4.7: R4320CEVB Technical Drawing
page 27.
SW1: Press it to reset R7101C Lepton
7
x1/R7104C Lepton
7
x4 modules
SW2: Can be used to drive module GPIOs according to the following configurations:
SW open to be used when
-
GPIO is configured as OUT
-
GPIO is configured as IN and forced at LOW level
-
GPIO is configured as IN and driven externally through J2
SW closed to be used when
-
GPIO is configured as IN and forced at HIGH level
Fig. 4.9: SW2 configuration
