UM1657 datasheet(30/48 Pages) STMICROELECTRONICS

30 / 48 page

SPIRIT1 DK - GUI description

UM1657

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DocID025094 Rev 1

checked, the microcontroller find automatically the XTAL frequency and the text box is

only read. Otherwise, if the AUTO check box is not checked, the user must write the

correct XTAL frequency value.

By pressing the "Configure radio" button, all the values are sent to the SPIRIT1 DK - DB and

then read and dis-played for the user.

Figure 18. Radio setting panel

3.2.4

RF test mode

Some useful commands are available to put the SPIRIT1 DK - DB in test mode: TX CW and

TX PN9.

Figure 19. RF test mode buttons

Both tests require only one device connected to PC.

3.2.5

TX CW test

This test mode can be active using the following steps:

Select the desired radio settings and load it by pressing the "Configure radio" button

Pressing the "TX CW START" button.

This test mode makes SPIRIT1 DK - DB transmits a continuous wave (CW) at the selected

frequency and with the selected output power.

The user can measure the output signal at the suitable SMA connector or the TX state

current consumption.

The SPIRIT1 DK - DB stays in TX state until the "TX CW STOP" button is pressed.

When the user wants to change frequency or output power, the running test must be

stopped first and then re-peat steps 1 and 2 selecting the desired frequency or output power

during step 1.

3.2.6

TX PN9 test

This test mode can be activated using the following steps:

UM1657 Datasheet(PDF) 30 Page - STMicroelectronics