UM2339 Rev 1

13/26

UM2339

Hardware layout and configuration

25

7.6

IDD measurement (JP1)

Jumper IDD (JP1) allows to measure the consumption of a STM8 device by removing the

jumper and by connecting an ammeter:

•

Jumper ON: STM8 device(s) is (are) powered (default).

•

Jumper OFF: an ammeter must be connected to measure the STM8 device(s) current.

If there is no ammeter, STM8 device(s) is (are) not powered.

Note:

By default all STM8 devices are powered. To isolate the power consumption of only one

STM8 device, it is required to either cutout the non-required DIL8 modules or to cut all of

them and insert the required DIL8 module in the socket U3.