nrf9160 SPI power consumption

[Tron]

Hi

On my custom board, I have an external flash connected via SPI. . The nrf runs on mfw 1.1.0. 

Without activating the flash, I get an average current consumption of around 45 µA. As soon as i do a spi_transcieve(...) call, the power consumtion jumps up till 1,4 mA, and will not go down again during sleep. This current corresponds exactly to what I see if serial communication is enabled. I don't know if this is relevant or not. 

The flash is powered down, and should in a ready state draw around 25µA.

Yours, 

Tron

[Simon]

Could you upload your application (I can make the ticket private if you would like to)? Then I can perform some tests myself and figure out what may cause this.

Best regards,

Simon

[Tron]

Hi there Simon

I suggest the following: 

• You have my email address, you send me an email, and I will invite you to my bitbucket git repo, and you will be able to clone it
• then it's up to you to keep the ticket public or not. 
• Do you have access to our custom hardware? It's available in Trondheim, afaik. I can provide you with hardware in Oslo as well, or send it by surface mail if desired. 

Wr,

Tron

[Simon]

I have sent you an email and I will see if I can get hold of your hardware tomorrow.

Best regards,

Simon