External Connections; Jumpers And Switches; Fig. 4.9: Sw2 Configuration - Caen RFID Lepton7x1 Technical Information Manual

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
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
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

EVALUATION BOARD - Lepton
7 x1/R7104C Lepton
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x1 - Lepton x4 - Technical Information Manual
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x1/R7104C Lepton
7 x4 modules
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x4 modules
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