AN4486

Running the OTA bootloader GUI & BlueNRG

SW package demo applications

DocID026293 Rev 2

21/29

a.

From Tools->Flash Motherboard FW, select the Reset Manager hex

prebuilt image (STM32L\Project\OTA_prebuilt_images\

DFU_ResetManager.hex) to upload the Reset Manager on board (hex

format implicitly takes into account the proper application base address

which, for the case of the application, will be 0x8003000).

b.

After Reset Manager loading, a reset while keeping BUTTON_2 pressed

needs to be performed in order to erase obsolete data from the OTA

bootloader's EEPROM and guide proper Reset Manager behavior at first

startup (5 seconds LED_D1 turned on signals a successful run of the

process).

c.

The same actions, starting from DFU bootloader activation, must be

taken to upload the OTA Service Manager application built with the IAR

workspace: OTA_ServiceManager\EWARM\OTA_ServiceManager.eww

for BlueNRG device or OTA_ServiceManager\EWARM_BlueNRG-

MS\OTA_ServiceManager.eww for BlueNRG-MS device (prebuilt images

BlueNRG_OTA_ServiceManager_App.hex and BlueNRG-

MS_OTA_ServiceManager_App.hex are also in OTA_prebuilt_images

folder).

d.

Similar actions, starting from DFU bootloader activation, must be taken to

upload the SensorDemo BLE application (done through SensorDemo,

OTA_Basic workspace) and built to coexist with the OTA Service

Manager (hex format implicitly takes into account the proper application

base address which, for the case of the application, will be 0x8006800).

e.

(Optional) Get a “BlueNRG app for smartphones (IoS or Android)” to

discover, connect and play with the Sensor Demo application just loaded

on the development platform in step 2.d. just to verify that an ordinary

BLE application has services coexisting with the OTA bootloader service,

which will run next.

f.

In order to activate the OTA Service Manager, the user can simply press

button BUTTON_1: this invokes a specific API handling the SW jumping

to the OTA Service Manager (same button pressed on OTA Service

Manager will allow to jump to the current valid BLE application).

3

Program the second platform with the required application to be used with the

BlueNRG GUI (BlueNRG_VCOM_x_x.hex file available on the BlueNRG DK SW

package, on Firmware\STM32L1_prebuilt_images folder).

4

Open the BlueNRG GUI on the PC and select the COM port related to the

BlueNRG platform configured in step 3, through the drop-

down “Port” and press

“Open”.