Honeywell Q7055A user manual Operating Modes, Switching the Operating Mode

BUILDING NETWORK ADAPTER BNA-1C/2CS/2DN

6.2Operating Modes

The BNA Bootloader provides two different operating modes:

• Normal Mode (default)

•Stay in Bootloader Mode

Normal Mode is the default, which directly starts an application firmware found in Flash memory. If no firmware could be found, then the bootloader command shell is started by the BNA (Figure 6-1). This execution flow can only be influenced by pressing the Mode Button and changing the mode to Stay in Bootloader Mode.

Stay in Bootloader Mode interrupts the default bootloader startup sequence and tells the bootloader not to start an eventually existing application firmware in the Flash memory.

6.3Switching the Operating Mode

In order to switch the Bootloader operating mode, a pointed object, like an unfolded paper clip or a sharp pen is required.

For changing the operating modes, there is a time window of about 3 seconds after reset. The following steps have to be performed to successfully change the bootloader mode (Refer also to Figure 6-2: Switching BNA Operating Mode):

1.Press the Reset Button

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