AN4486 datasheet(22/29 Pages) STMICROELECTRONICS

22 / 29 page

Running the OTA bootloader GUI & BlueNRG SW

package demo applications

AN4486

22/29

DocID026293 Rev 2

Select “Tools” -> “OTA bootloader” to open the dialog box containing the OTA

bootloader actions

and press “Search for devices”.

Figure 9: BlueNRG GUI: OTA bootloader window

After “Search for devices”, the GUI will start the discovery process and return

information related to the address and application names of devices running the

OTA bootloader service within the radio range. Once the previous process ends,

the device list can be opened through the combo box arrow below the “Search for

devices” button and the user can find the device running the OTA Service Manager

and p

ress “Connect”. If we realize we have connected the wrong device, we can

just press the “Force Disconnection” button and return to device selection within

the combo box. After device selection and connection through the “Connect”

button, we can read the related free memory range that it advertises, which

constrains us to provide an image file compiled with a base address and size within

the expected range on the BLE device.

As the next step, we need to provide the “Base address: 0x8006800” and

press the browse button to select the location of the file containing the

image that we plan to send over-the-air towards the BLE device. For that

purpose, the user can open the BlueNRG IAR workspace SensorDemo,

OTA_Basic and build the related SensorDemo_OTA_Basic.bin image

(available in SensorDemo\EWARM\OTA_Basic\Exe folder) containing a

version of the Sensor Demo that is compiled with base address equal to

0x8006800. Alternatively, the user can open the BlueNRG IAR

workspace BLE_Chat, Server_OTA_Basic and build the related

Server_OTA_Basic.bin image (available in

BLE_Chat\EWARM\Server_OTA_Basic\Exe folder) containing a version

of the BLE_Chat, server application that is compiled with base address

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