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SPBT3.0DP2 Firware upgrade not working.

Lokesh Kumar K
Associate

‎2017-12-08 03:33 AM

Posted on December 08, 2017 at 12:33

Hi,

We are able communicate to SPBT3.0DP2 module through UART. we are interested in downloading the new firmware to the Bluetooth module and hence we followed the steps given in the document ''

SPBT3.0DPx BT module

Firmware Update Procedure,Revision 1.0''. But we are unable to download the Firmware.  We followed Below steps.

* Connect the SPBT3.0DP2 to PC through UART. press reset. The response was received with Bluetooth address. and communication was done between BTterm app and PC hyper terminal.

* switch off the Device.

* Now Connect BOOT0 pin to 1.8V supply. and connect UART lines to PC.

       Note: *Since flow control is none not using RTS and CTS  pins, Pins are left floating.

                * UART to USB converter is used. the Prolific UART  to USB Converter is used.

* Power on the Board. press Reset Button.

* Open software ''Demonstrator GUI'' for loading flash files. configure the UART for Parity = Even, Stops Bits 1, COMport: COM12:

* Clicked on Next. Failure Message is displayed as ''Unrecognized device. Please reset your device and try again.

0690X0000060967QAA.png

* Tried Resetting the device and repeated the above steps but result was same as mentioned in above step unrecognized device.

Need help on using boot mode and eagrly Looking forward for your suggestions.

Lokesh Kumar K

#spbt3.0dp2
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2 REPLIES 2
Alex R
Senior

‎2018-03-23 06:59 AM

Posted on March 23, 2018 at 14:59

Hi,

The problem could be that you are pressing the Reset button, right after you power up the board with the BOOT0 signal connected to 1.8V.

Try the procedure, but do not press the Reset button, and see if it works now.

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Andrea Cucchi
Associate II

‎2018-03-27 02:20 AM

Posted on March 27, 2018 at 11:20

Hi Lokesh,

did you succeed?

In case, at which voltage you are supplying the module? Note that you have to set the Boot pin to the same voltage level of the Vin pin. So, if you are supplying at 3.3V, it is not correct to set the boot pin to 1.8V.

Also try to lower the UART baudrate in case it is matter of signal quality in your setup,

Bye

Andrea

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