Troubleshooting – Brainboxes RS232 User Manual

Page 35

Manual for BL-521 5_3.doc

Page 35 of 41

12. Troubleshooting

In the rare occasion that you experience difficulties using this product, please read the following suggestions from
the table below before contacting our support team.

Symptom

Description

Solution

Data

doesn’t

seem

received by the product, but
seems to be sent by it (e.g. data
only travelling in one direction)

This is normally the result of the
product being configured as requiring
RTS/CTS handshaking, but being
plugged into a device which does not
support it.

Firmware prior to 3.0 requires that pins
7 and 8 (RTS and CTS) of the 9 pin
connector are connected to each other
(looped back). Firmware from 3.0
onwards

can

switch

off

this

requirement

–

refer

Error!

Reference source not found. Error!
Reference source not found. for
details on how to do this.

Interaction

with

the

appears slow and unresponsive,
but data does show eventually.

This is normal operation when the
product is in Client mode. The product
is using most of its processor cycles
to try and find and connect to a
remote device.

Reconfigure the product to Server
mode whilst attempting to configure
other options

Cannot interact with the menu

There are a number of scenarios
where this might happen…
1. A Bluetooth connection is made
2. The Product has failed to initialise
correctly (perhaps if the power
adapter has been attached whilst
switched on).
3. Incorrect

communication

parameters selection.
4. Incorrect Wiring configuration

1. No interaction with the menu is

possible when a Bluetooth connection
is present. Break the connection to
restore access to the menu.

2. Switch the power off then on again.
3. Change the communication settings

in your terminal application to match
those of the devices settings. If you
have forgotten or lost these settings,
then the device can be restored to its
factory settings by performing a long
reset. Check your devices wiring and
handshake configuration requirements

Firmware upgrade (DFU Wizard)
fails

1. Product not connected
2. Product not configured for upgrade

1. Connect your converter to a suitable

port on your PC and connect the
power.

2. Follow instructions in above sections

for preparing for upgrade