topic Re: Building BLE 4.2 HCI for FRDM-KW41Z in Wireless MCU

Building BLE 4.2 HCI for FRDM-KW41Z

wesdodd — Fri, 16 Dec 2016 13:59:17 GMT

Hi,

We've started to work with the Kinetis Design Studio to build applications for the FRDM-KW41Z board. We want to build the hci_black_box_frdmlw41z application for BLE 4.2.

In some of the header files I find checks for compile time switches "gBLE41_d" and "gBLE42_d", but I can't find anywhere where either of these are set as part of the project.

I haven't been able to find any documentation about the build options for the project, other than Debug or Release builds.

Can someone help sort this out?

Thanks,

Wes

Re: Building BLE 4.2 HCI for FRDM-KW41Z

dereksnell — Mon, 19 Dec 2016 20:51:21 GMT

Hi Wes,

The macros gBLE41_d and gBLE42_d are only used for the stack libraries, not for the application. They are defined as preprocessor macros in the library projects, but those library projects and source are not shared. This is why they don’t seem to have any impact on the application source code provided, and why there are no further references to them. The libraries provided for the KW41Z have gBLE42_d set to TRUE.

And the BLE documentation is installed with the KW41Z Connectivity Package at \MKW41Z_ConnSw_1.0.2\docs\wireless\Bluetooth

Best regards

Re: Building BLE 4.2 HCI for FRDM-KW41Z

cristiancodrean — Fri, 23 Dec 2016 16:14:56 GMT

Derek,

We have the FRDM-KW41Z board loaded with the hci firmware and we'd like to test if the firmware works fine.

Sending the HCI-Read-BD-ADDR command (01 09 10 00) over a serial interface works fine. But when I tried to use the hciconfig tool from a Linux (Ubuntu 12.4) machine, it failed to respond back:

cristian:~$ hciconfig
hci0:   Type: BR/EDR Bus: USB
   BD Address: 4C:80:93:2C:12:7F ACL MTU: 310:10 SCO MTU: 64:8
   UP RUNNING PSCAN ISCAN
   RX bytes:1295 acl:0 sco:0 events:52 errors:0
   TX bytes:717 acl:0 sco:0 commands:52 errors:0

hci1:   Type: BR/EDR Bus: UART
   BD Address: 00:04:9F:00:00:15 ACL MTU: 500:20 SCO MTU: 0:0
   DOWN INIT RUNNING
   RX bytes:184 acl:0 sco:0 events:13 errors:0
   TX bytes:72 acl:0 sco:0 commands:13 errors:0

cristian:~$ sudo hciconfig hci1 up
Can't init device hci1: Connection timed out (110)
cristian:~$

Any ideas? Thanks!

Cris