Digi RCM4000 Manual do Utilizador descarregar pdf (Página 100)

94 RabbitCore RCM4000

• Current Measurement Option—You may cut the trace below header JP1 on the

bottom side of the Prototyping Board and install a 1 × 2 header strip from the Develop-

ment Kit to allow you to use an ammeter across the pins to measure the current drawn

from the +5 V supply. Similarly, you may cut the trace below header JP2 on the bottom

side of the Prototyping Board and install a 1 × 2 header strip from the Development Kit

to allow you to use an ammeter across the pins to measure the current drawn from the

+3.3 V supply.

• Backup Battery—A 2032 lithium-ion battery rated at 3.0 V, 220 mA·h, provides

battery backup for the RCM4000 SRAM and real-time clock.

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