GTL

Adding custom handler in BLE host mode with external MCU

Wed, 2019-02-06 07:01--Nishal
Forums:
Dialog Smartbond Bluetooth Low Energy – Software

Hi Dialog team,

I am trying to understand how can I add custom handler to the empty_template_ext. Basically we have STM32 as external processor. We are using UART for communication between STM32 and DA14585 with GTL protocol. We want to operate BLE in scanner/observer mode

With the existing code, I could get BD Address, scan for nearby devices. Now to build the application, we are looking for some custom implementation. Say we want to send a command from STM32 to DA14585 to blink LED, read some GPIO status, how can I achieve this.

Max size of GTL messages

星期二,2017-07-11 21:33--pvmellor
Forums:
Dialog Smartbond Bluetooth Low Energy – Software

I have implemented a GTL between the DA14580 and an external MCU. Works fine, except that I need to send one message that is quite long (476 bytes for the bonding DB to be sent). From my tests it seems that I can only allocate a message of up to 0x3a bytes of payload (with ke_msg_alloc()), as when I try and allocate more than this is seems to revert the length back to zero. Is this correct? Is there a way to send longer messages?

Thanks,
Paul.

GTL Status & Documentation

Tue, 2017-06-13 12:10--pvmellor
Forums:
Dialog Smartbond Bluetooth Low Energy – Software

We're using the PAN1740 (containing the Dialog DA14580) on a sensor that has an external MCU. We need to set up communication and control between the MCU and the DA14580. Could you help with the following questions:

  • Is the GTL still supported? The two documents UM-B-013 and UM-B-017 that relate to it are in a "Discontinued" section.
  • If still supported - can you direct me to the current documentation?
  • if not supported, what is the recommended way to use an external processor now?

Thanks,
Paul

Reading of Battery Level (BASS) and Custom Service (CUSTS1) Characteristic (GTL over UART)

Wed, 2015-11-11 16:32--abremen
Forums:
Dialog Smartbond Bluetooth Low Energy – Software

Dear support,

I have ported over the prox_reporter_ext project (SDK 5.0.3) and I have added the Battery Service (as in project prox_reporter) and the Custom Service (as in project ble_app_profile). I am using GTL over UART for communication between our ext processor and the DA14580.

GTL messages and (dynamic) memory allocation

Wed, 2015-10-21 17:34--abremen
Forums:
Dialog Smartbond Bluetooth Low Energy – Software

Dear support,

Currently I am implementing the GTL interface (over UART) in a custom embedded project. My first goal is to get the prox_reporter_ext project working in combination with our external processor (DA1458x_SDK\5.0.2.1\projects\target_apps\ble_examples folder). I have used the host_proxr_sdk project as a reference (DA1458x_SDK\5.0.2.1\projects\host_apps\windows\proximity\reporter\ folder).

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