AIROC™ bluetooth module flashing with USB-UART

[SURYASUNDAR]

Hi,

I was trying to flash AIROC™ Bluetooth module CYBLE343072 Using FTDI USB-UART bridge while I tried to flash it showing the error 

Programming target device ...

Found serial port : COM43

Downloading FW ...
Failed to determine baud rate
Download failed

If the serial port was not detected, make sure no other program such as Client Control has the port open.

If you have issues downloading to the kit, follow the steps below:

Press and hold the 'Recover' button on the kit.
Press and hold the 'Reset' button on the kit.
Release the 'Reset' button.
After one second, release the 'Recover' button.
make[1]: *** [../mtb_shared/wiced_btsdk/dev-kit/baselib/20835B1/release-v3.3.0/COMPONENT_20835B1/make/recipe/program.mk:102: qprogram] Error 1
make: *** [../mtb_shared/core-make/release-v1.9.0/make/core/main.mk:434: secondstage_build] Error 2

Even though I tried recover reset method same error it getting. Can you suggest me to sort out this error.

[AnjanaM_61]

Hello @SURYASUNDAR 

Are you using a CYBLE343072 EVAL or custom board ?

If custom connection with the FTDI chip, can you please share the connection diagram and a photo of the connection?

If you already tried Recovery procedure (with reset - recovery switches) and still facing issues, then mostly it will be a hardware connection issue. 

Regards,

Anjana

[SURYASUNDAR]

Hi
Here I am attaching the picture
HCI UART connection following-
GND - GND
VCC - VCC
RTS - CTS
CTS - RTS
RX - TX
TX-RX

[advait_kulkarni]

Hi @SURYASUNDAR ,

We missed this issue for follow-up.

Please let us know if you are still working on this issue?

Thanks and regards,
Advait Kulkarni

[Hemanth1]

Hi @advait_kulkarni  & @AnjanaM_61 

Myself Hemanth, 

I'm her teammate, present we are doing that project based on takeover her requirements

Now also we are facing issue on that can please suggest and sort-out the issue.

Thanks & Regards,

Hemanth

[advait_kulkarni]

Hi @Hemanth1 ,

Which launch file are you choosing from MTB while downloading the code? Also can you share the PCB schematic of the  custom board so we can review it?

Thanks and regards,

Advait Kulkarni

[advait_kulkarni · Accepted solution]

Hi, 

Please check the following when facing this issue, that the hex file from the build folder in MTB is chosen correctly, the uart-mcu connection is shorted using jumpers and the uart port on the chip is not used or opened in any other application.

Locking this thread due to inactivity.

Thanks and regards,

Advait Kulkarni