OL2385SWUG datasheet(55/64 Pages) NXP

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NXP Semiconductors

OL2385SWUG

SIGFOX software driver

OL2385SWUG

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User guide

Rev. 2.1 — 6 April 2018

55 / 64

frequency by a device (in our case we use a signal generator) using 600 bps GFSK

modulation as per SIGFOX specification. In order to perform this test the following tools

are also required:

• Extra FTDI cable to get the serial output at P20 of the OL2385 board. This output

displays if the received frame is a pass or a fail and its measured RSSI value.

• A second terminal program, such as Putty, to connect to the above mentioned FTDI

cable and to display the serial output.

• Vector signal generator with an RF connector cable connected to our device, which will

generate and transmit the downlink test frame, the device will receive.

Figure 39. Signal generator used for receiver test

Once the additional tools above are prepared, the following steps have to be performed

to start the test:

1. Press the reset button on the KL43Z to start from the beginning. (optional)

2. Choose Send Wake up: Type

1, and then press Enter. (This step is optional and not

required if the device has not had a recent reset or it is already awake)

3. Choose the region Change to RCZXX: Type

15 or 16 or 17 or 18, and then press

Enter. This will program the opening center frequencies of each region into the

OL2385.

4. Choose Switch to Public Key, if not testing with a real base station: Type

1a, and then

press Enter.

5. Choose Static frequency calibration (optional, see Section 7.2 "OL2385 Transceiver

Initialization Sequence"):

a. Type

22, and then press Enter

b. Type

1 or 2, and then press Enter

c. Type

frequency offset value, and then press Enter.

6. The receiver will be turned on by activating the test mode 3 in the next steps. In order

to test, send a GFSK frame at a correct frequency. Check the RX center frequency of

your region (see Section 7.3.2 "Modulated continuous wave" for region frequencies)

and enter the value in the Freq field of the signal generator.

7. Fill the required power level on which you would like to transmit your test frames on

the Lev field of the signal generator. This power level will be displayed on the P20

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