Thanks during testing to 15.109 using
LE Receiver Test batch file
The lab finished the testing to 15.109 this morning and when testing in the 1-4 GHz range, they noticed that there were transient bursts in the 2.4 ISM band
It appears the .bat file I provided does not actually place the radio into receive mode but LE Receiver Test. I assume this because the spectrum appears to show that the transmissions are “advertising channel” bursts.
Looking at the screen shot it reflected that the device was in normal operation mode following the execution of the FW
Please note that the FW was flashed in the board used for test but I assumed that using MBT tool
will bypass the running mode of the FW
Reading the PDF documenation it says
Configure the CYW2070X to run in the HCI mode.
a. When a CYW2070X device starts up it searches for an HCI UART.
b. If detected, the device stays in the HCI mode.
It can be tricky to make sure the device is in HCI mode.
Since the device can be powered by 2AA battery but we didn't put a PGM/RUN switch on the designed to force it to stay in HCI/PGM mode here is the sequence used during FCC
- Connect FTDI cable to the device RX,TX then GND and the laptop then power up the device using AA battery.
- There was a special push button for this on the design - single push to power on and long push to power down
- The device should then stay in HCI mode because the TX pin is connected to FTDI module and laptop
- Then send a reset command
- Then send the command
- After that disconnect the FTDI cable and leave the device alone in the chamber - device still powered by 2AA battery
- Use equipment for RF test and capture data
- Connect back the cable and send end command or power off the device with a long push per designed
Note regarding mbt receive_only command
Receive Only : this command is no longer available in latest version of mbt.exe so the documentation is off....
Instead use the LE test using channel # this command is working
This test issues a command to the CYW2070X to set the radio to camp on a specified frequency. The frequency
on which the device listens for packets is passed as a parameter.
The command usage used to be:
mbt receive_only <rx_frequency>
where:
rx_frequency: 2402 MHz to 2480 MHz
The example below instructs the CYW2070X to set the receiver to a frequency of 2406 MHz.
Would the following command properly place the device in receive only.
Is it neede to send a reset command first ?
WICED-Smart-SDK\Tools\mbt\win32>mbt COM3 receive_only 2406
Sending HCI Command:
0000 < 01 2B FC 01 06 >
Received HCI Event:
0000 < 04 0E 04 01 2B FC 00 >
Success
This would be nice for Cypress to offer a bunch of FW app for each FCC test case to put the device in test mode at boot time instead of relying on mbt
and the ROM 
