Thread Sleepy End device with DFU Client ( high current consumption)

[kpyush]

Hi, I am getting very high current consumption ( around 800uA) when we convert Thread DFU client application from FTD to SED.

How I converted thread FTD-DFU client to thread SED-DFU client

SDK used: nRF5-SDK-for-Thread-and-Zigbee 2.0.0

example path: examples\thread\dfu\client 

1. In <install folder>\examples\thread\dfu\client\pca10056\blank\armgcc I have done following changes:

• in make-file line no 164
  • changed  $(SDK_ROOT)/external/openthread/lib/gcc/libopenthread-cli-ftd.a  to $(SDK_ROOT)/external/openthread/lib/gcc/libopenthread-cli-mtd.a 
  • changed  $(SDK_ROOT)/external/openthread/lib/gcc/libopenthread-ftd.a    to $(SDK_ROOT)/external/openthread/lib/gcc/libopenthread-mtd.a 

• added line 201:
  • CFLAGS += -DOPENTHREAD_MTD=1

• added line 224:
  • ASMFLAGS += -DOPENTHREAD_MTD=1
• in the main.c  file modified .
  • .role = RX_OFF_WHEN_IDLE // to make SED

Followed the steps as described in Thread DFU Example

attached PPK when No DFU server is running, the measured current is ~800uA. 

When running the following example:

• examples\thread\mtd_coap_client

We are getting current consumption around 85uA.

  

[Jørgen Holmefjord]

Hi,

Have you tried removing CLI from the DFU client application? CLI/UART can cause the high current. Remove call to thread_cli_init() in thread_instance_init(). 

Best regards,
Jørgen

[kpyush]

Jørgen HolmefjordSeems like after removing "thread_cli_init()" power consumption reduced significantly. I will update you the exact numbers shortly.