嗨对话框，
I'm using a pro DEV kit for 14681-01. I'm running ble_adv demo code with advertise interval modified to 1000ms (confirmed using nrF connect app).
I'm using the smarsnippets Toolbox V4.4.3.142.
Im getting a average current of about 130uA after letting it settle. If i change the advertising interval to 5000ms i get around 110uA.
我的问题what current is the power-profiler measuring is it the current for the whole board or just the chip?
有没有任何我需要为Power-Profiler做的设置？
Are these current readings normal?
Is there a manual method of checking the current used by the chip using a DMM?
谢谢，
Mutahir
Device:
can anyone please help?
嗨瓦拉希尔，
In the power measurements application note there is Table 1: BLE operation power consumtion, that mentions results of the power consumption of the 68x in different states of the device (advertising and connected) and with different advertising and connection parameters in order to get an idea about the power consumption of the 68x. The power profiler measures the current from the whole board and not the daughterboard itself since there might be leakages that increase the current that you measure and the values that you report are quite high. Regarding measuring with the DMM, this isn't a proper way to measure the power consumption of the 68x. The recommended way is described in the document that i ve mentioned. Regarding the configuration of the power profiler you need, you will have to set the Multiplication factor according the board that you have and also you can configure the offset in order to compensate any leakages from the board, the default offset should be ok if your supply is the 3.0V supply voltage.
谢谢mt_dialog.
Ok so I measured the DB's current consumption using a DMM (connecting negative terminal on the board to the negative of the coin cell using a wire and positive side of the cell to DMM and the other lead of the DMM to the positive terminal of the DB) I get (upto) 100 uA spike when advertising and around 17-15 uA when in sleep mode. These readings are through a DMM without any shielding present, are these normal? I have checked the document you mentioned but I'm not getting the 4.23uA it mentions in the avg sleep current column nor is my avg active current as high as it mentions (1.4mA). Can you guide on these values?
Regarding configuring the power profiler. I have 1681-01 pro devkit where is the Rev of the board mentioned? I am powering it through the USB2(DBG) port; so should I use the default offset? Still getting the same values using the power profiler as mentioned in above post.
嗨瓦拉希尔，
As i ve mentioned in my previous post, using a DMM wont give a you clear indication about the power consumption of your device, so from the numbers that you are mentioning, 100uA spike when advertising or the 17-15 uA when sleep i am not able to verify that this is normal behaviour of the device. The device wakes up and falls to sleep in intervals the DMM isn't able to pick up any accurate measurements due to the variation of the power consumption of the device advertising and sleeping, capacitor charging etc so it just averages. The values that are indicated in the document are taken through a power analyser and not a DMM, you wont be able to get those kind of values with a DMM.
Regarding the power profiler, since you got a motherboard thats is a revE board, should be indicated right beside the K1 button (xxx-xx-E), yes since you are powering the device with the usb there should be allready a value in the offset field. Also try to run any other examples and check if you get the same power consumption.
谢谢mt_dialog.
Hi,
因此，我在20-30毫秒的广告模式下运行了Vanilla Prox-Reporter示例，POWER-PROFILER中的AVG电流为0.705mA，在1000-1500ms期间，功率分析器将AVG电流为0.221ma。
你能告诉我你在SS工具箱4.4.3.1420的电力 - 剖面仪中获取rev-e的读数吗？
好的，所以我想出了这个问题，问题是J15，J14和J5上的跳线。删除跳线将电流降至26.8 ua，在1000-1500ms间隔内。