EM357-MOD-LR-RF-T datasheet(41/43 Pages) SILABS

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8-3

EM35x Development Kit User Guide

120-4030-000E

These jumper settings can be seen in Figure 8-1.

Figure 8-1. Jumper setting for Deep Sleep Current Testing

•

Given an RCM programmed with Nodetest, execute the "shutdown" command:

> shutdown

Will wake from GPIO activity on the following port pins:

Port B, pin 6.

Port C, pin 6.

Entering SLEEPMODE_POWERDOWN via halSleep...

•

Once the node is asleep, disconnect the InSight Port cable, the DEI cable, the RS232 cable, and remove all

four UART jumpers (J22, J24, J25, and J26) from the Breakout Board between the USB and RS232

connectors to obtain the lowest current settings. All other jumpers may remain installed.

•

Waking up is accomplished via either activity on the SerialWire debugger or pressing BUTTON0 or BUTTON1.

To measure deep sleep while the InSight Port cable is still attached, issue the "swjdisable 1" command in

Nodetest to disable the SerialWire/JTAG port, and place the SWJ pins in a low current state. While the SWJ is

disabled, the InSight Port/debugger will not be functional until either the command "swjdisable 0" is issued or

the chip resets.

EM357-MOD-LR-RF-T Datasheet(PDF) 41 Page - Silicon Laboratories