Does anyone have experience with CSR's BlueCore5-Multimedia and the ADK 2.5 Sink Application. I am working on CSR's CNS09010v3 development board and am using their Audio Development Kit (ADK 2.5). I do not modify anything on their example Sink application. There are two configurations for BC5MM - DEBUG and RELEASE.
Open the Sink workspace from their xIDE3 development program.
Compile and run the Sink application in DEBUG Configuration (the dev boards is already configured with the included in the ADK - Sink Configuration Tool).
Pair the headset with an iPhone 5S.
I am able to play music and make a phone call.
I stop the application and run it again. The headset connects automatically to the iPhone 5S and again am able to play music and make a phone call.
The problem is when I run the Sink application in RELEASE configuration and unplug the SPI Programming and Debugging interface cable. The headset does not want to connect automatically to the already paired iPhone 5S. If the application is running in RELEASE configuration and the cable is plugged it connects automatically. The difference between the two configurations is that in DEBUG the application sends debug messages through the SPI port and the xIDE3 displays them. I hope that this description is enough for someone to help me.
Thanks in advance.
The problem you are experiencing is caused by a call to printf() or some other function, which sends output to std.out.
CSR has documented this in CS-236868-UGP1ADKSinkUserGuide.pdf:
3.3. Enabling Debug Output
Adding the DEBUG_PRINT_ENABLED Define Symbol enables debug output.
This can be set in the sink_debug.h file. Debug for certain files
can be enabled and disabled by editing the relevant #define(s) in
sink_debug.h.
Note:
When debug is enabled in the application or libraries the
application does not run without a debugger attached.
So please make sure that you don't call even indirectly (e.g. via macro) any std. output function.
Related
I have a BLE module that i'm trying to update the firmware in, but having a lot of problems connecting the recommended update software (ISupdater). All I get is 'connect failed' message. There seems to be no troubleshooting information available, so I hope that someone has run into the same issues and solved it.
For the hardware setup, I'm connecting to a PC via a USB-USART serial adapter board. I have the 3.3V, GND, reset switch, mode switch, USART connection from the RN4870 BLE module connected as per the microchip connection diagrams (https://microchipdeveloper.com/ble:rn4870-app-example-fw-upgrade). I have verified many many many times that my connections are correct.
Connection Diagram
To test the BLE connection and data transfer I have mobile devices (iOS and Android) with the recommended apps (SmartData, mBIoT). I can see the BLE broadcast in the bluetooth lists, and I can connect to it to use the apps.
For the RN4870 module, I'm able to connect to CoolTerm software to test that I'm getting communication between the terminal and a mobile device. I'm able to send and receive data on the CoolTerm terminal, and on the mobile device apps, so that suggests to me that the USART adaptor is working correctly, and so is the BLE module.
In CoolTerm, I'm able to enter the CMD mode for the RN4870 module to set and read settings of the module, so I can check and set the baudrate to the default 115200.
If I use a BM70 module (which is the same hardware as RN4870 but different firmware), i can't enter any CMD mode, or do any sort of reset. The data is still able to be sent and received, so that confirms the baud rate is correct.
When I attempt to connect to either BLE module using the ISUpdate software that is recommended in the update steps to use as the firmware updater, I'm not able to connect to the module to update the firmware. I've tried many times to get the software to connect, many different ways, without success, and it's frustrating to no end.
I've updated the MCP2200 drivers to the latest ones from the microchip website, as well as using the latest versions of the CoolTerm and ISupdater. I've also tried previous versions, but still they all have 'connect failed'
ISupdater Image
has anyone got any solutions to the issue?
PC: Windows 10, 64-bit
BLE Modules: RN4870, BM70
CoolTerm Version: v1.8.0 (build 861)
ISUpdater Version: v4.0.0.207
IS187x_102_BLEDK3v1.11_UIv1.01 for Windows 10
Mobile Apps: SmartData, LightBlue for iOS, LightBlue for Android, mBIoT
Hmm, well it turns out that the USB-USART serial adaptor (although confirmed to be working correctly) seemed to be the problem.
At first, I only had the 1 adaptor, and I had to borrow a different adaptor. After swapping this FTDI232 USB-USART Serial adaptor, the connection was made first try, and I was able to update the firmware. I have now purchased a new adaptor.
So, if you are having the same trouble, try using a different adaptor.
I'm trying to establish a connection between my PC running Ubuntu and my iPhone via Bluetooth automatically when it becomes available, after being manually paired beforehand. I've seen this to be possible with certain peripherals, mainly audio. For example, my phone will automatically connect to a Bluetooth speaker when it is turned on and Bluetooth is active on my phone; another example is my phone automatically connects to my car's radio system via Bluetooth when I turn the car on.
I'm not able to connect my phone to my PC without first initiating the connection from the smartphone's Bluetooth menu. I'm thinking that I could possibly write an application for the PC to attempt to connect to the device every few minutes or something, but it seems that the phone needs to be the device to initiate the connection.
The only information that I need for what I'm trying to do ultimately is that the devices can pair successfully. Essentially I'm trying to build a sort of proximity trigger between my phone and my PC without using Wi-Fi and GPS - I can't use these for some specific reasons.
Is there any way to make this happen?
Yes this should be doable as long as you use the Background Processing feature for iOS apps. In the example I'll give below, we'll have the PC be the peripheral and the phone be the central, but you can really have it working either way. You will need to do the following:-
First initial connection needs to be performed in the foreground (this is due to iOS's background limitations).
On the iOS side, you need an application that acts as a central that scans and connects to the remove device (check this example as a starting point).
Upon connection, you need to bond with the PC. Bonding is important as it will prevent you from having to do the pairing again in the future. However, pairing/bonding is managed by the iPhone's OS so you cannot write it in your application, so the workaround is to have an encrypted characteristic on the PC side that will force the iPhone to bond (this is covered later).
On the PC side, you need to have a BlueZ script that acts as a peripheral that is always advertising. You can do this using bluetoothctl (check the examples here and here).
Before you start advertising, you need to have a GATT server on the PC side (to do this, check this example).
When registering characteristics, ensure that one of them has the encrypt-read property (you can find a full list of the properties here).
Now when you attempt to read this characteristic from the iOS side, the two devices should bond (make sure that your PC is bondable which you can do this via these commands).
Once the devices are paired, your iOS app needs to be working in the background constantly scanning and attempting to connect to the same peripheral (have a look at this and this example).
You can find more useful information at the links below:-
Getting started with Bluetooth Low Energy
The Ultimate Guide to CoreBluetooth Development
How to manage Bluetooth devices on Linux using bluetoothctl
In short
When I connect to a BLE device with an unofficial app/program, GATT commands are not executed by the device.
Does the app need to run some king of authentication with the device? (a Bulb)
My reverse engineering story
I am trying to reverse-engineer a Bluetooth LE bulb (the Holi Sleep Companion). I have successfully found the GATT messages I need:
by reading the HCI journals from Android (dev tools)
by disassembling the Java code of the Android app (Sleep360)
However, sending the exact same sequence of Bluetooth messages to the Bulb does not work.
While testing, I actually found that the following works for one GATT command if quickly run in the right order:
I connect the official Android app
I close the official Android app
I connect my own app/program and send one GATT command (from the same device or another)
My tests
I run my tests with two methods:
with the nF Connect Android app
with my own python script running on a Linux laptop with bluez
Thank you for you help!
No there is no such "authentication standard". You have the pairing and bonding however in the standard but that is usually taken care of by the system and not by an app in Android.
A manufacturer is free to use GATT as a transport layer and then build an authentication protocol on top of it.
I am trying to find a clever way to keep a BLE app active in the background on iOS 6, without breaking any of Apple's rules. I plan to use the phone as a peripheral device and another BLE circuit as the central. My app will automatically be opened when a user arrives to a building using geofencing. After that the iPhone will connect to the first BLE central device it sees (the device will be in its white list). The user will then be able to move throughout the building switching to different BLE "nodes".
My question is: What do I need to do in the background when a user is stationary at their desk so that the app does not get suspended due to memory resources?
My idea is based on this solution for a separate problem: There could potentially (not regularly) be 10-50 users in an area with only a few BLE "nodes" and I read at bluetooth.org that I could setup a dynamic connection system, basically rotating connections through all the users.
My idea is to setup a similar dynamic system where the central device (not the iPhone) disconnects the device on regular intervals (30-40 minutes) and then the iPhone will reconnect.
Is this something that some feasible? Is this against the iOS development guidelines? I was unable to find anything explicit about this. I have also asked on the iOS developer forum, but unfortunately it is not as popular as this site.
Thanks in advance!
Xcode -> Project target -> Capabilities -> Enable background mode
Check Uses Bluetooth LE Accessories
Capabilities
Also enable the following key in .plist file
Required background modes
App communicates using CoreBluetooth
Plist
I am writing a windows application (written entirely in C++) which reads files from a storage card on a mobile phone running Windows Mobile. The tough part is, I don't know how to make my application detect the event that a user has connected the mobile phone to the USB of laptop. I did some reading on MSDN and have written a small code using RegisterDeviceNotification, which detects whenever a USB disk is attached/removed from the laptop. However, I am unable to tweak this to make it work for phone type devices. Please help me out through any links/tutroials which explains this(preferrably C++, as I don't know .NET or C#).
Thanks
Alok
According to this article you can use RegisterDeviceNotification to get notifications when activesync detects a device has been plugged/unplugged. (See option 3 at the end of the article)
It may just be a matter of setting up the correct notification filter.
Windows Mobile devices use RNDIS, a network interface protocol behind the scenes. Hence, the RegisterDeviceNotification method still works, but you're looking for a DEV_BROADCAST_DEVICEINTERFACE, not DEV_BROADCAST_VOLUME. (i.e. dbch_devicetype==DBT_DEVTYP_DEVICEINTERFACE)
You can use RAPI or RAPI2 to detect when a Windows Mobile device connects to a PC via Active Sync or Windows Mobile Device Center. RAPI can also be used to read the files on the storage card and much more.
RAPI is simpler to program because it is a C based API. RAPI2 has more functionality than RAPI, but is an object oriented COM API. If your needs are simple and you only care about one device/connection at a time then RAPI is good enough. There are two RAPI functions used to detect connections: CeRapiInit (blocking), and CeRapiInitEx (signals an event upon connection).