Hi,
In direct test document AN-B-007, a level shifter from RS232 to uart is required to do direct test with R&S CBT box. I'm looking to buy that level shifter. Can you please let me know where I can purchase it? Please see attached pdf as well.
Thanks,
Lu
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Device:
Hi luhancel,
We actually dont use a level shifters anymore. As an alternative you can use the Comm Tunnel tool on your pc. Please check the section 4.2 on the AN-B-007 for more info on that.
Thanks MT_dialog
Thanks for your reply. It is up and running now.
Hi luhancel,
Glad it helped, thanks for letting us now.
BR MT_dialog
Hi MT_dialog,
Thank you very much for your help.Everything runs fine except receiver sensitivity. I'm getting 100% errors. Am I missing something? Please see attached file. DUT is inside 80dBm RF shield box.
Thanks,
Lu
我wondering if my comm tunnel is screwing up data. When I run rssi using prodtest.exe commands from command line, I was able to get correct correct Rx data
prodtest -p 13 stop_pkt_rx_stats
status = 0
nb_packets_received_correctly = 9991
nb_packets_with_syncerror = 0
nb_packets_received_with_crcerr = 4998
rssi = -89.65
Hi Luhancel,
the Comm-Tunnel tool should not interfere with BT-tester <-> DUT signaling.
What are the UART settings used in the COMM-Tunnel tool ?
My Serial port settings are (for both end-points):
baudrate: 115200
Byte size: 8
Parity: none
Stop bits: 1
Data flow control: None
Buffer sizes: 1024
And, is the R&S CBT set correctly for baudrate etc.?
Best regards, BB_Dialog.
Thank you. I believe I've correct settings. Please see attached. I'm not sure why I'm getting gross errors on Rx sensitivity.
I am having difficulty getting the Dialog to respond to the CBT. I see 00 as the ping from the CBT in the Comm Tunnel but get no response from Dialog. I am able to see data streaming from the Dialog in Comm Tunnel before I load prod_test.hex using the JTAG. What UART pins are the default for the connection?
Hi Daniel.Landherr,
The default uart port pins for the prod_test project are the P04 and P05. You can check the UART configuration in the user_periph_setup.h file.
Thanks MT_dialog
That did not make the issue go away. The specific error from the CBT is:
"Connection Check Failed. Please verify RF connection and/or EUT control parameters"
I have confirmed with a oscilloscope that the command 00 used in the connection check is being sent from the CBT to pin P0_5 through the comm tunnel. No response from the DA14581 on P0_4.
Hi Daniel.Landeherr,
Which release of the prod_test you are using, the one in the SDK5 ? The prod_test on SDK5 has some issues, can you please try using the prod_test of the SDK3 ?
Thanks MT_dialog
I resolved the issue. The key is changing to HCI on the CBT for the interface instead of 2 wire
Hi Daniel,
Thanks for indicating,
MT_dialog